feat: add BlockRun wallet provider for pay-per-request AI access (#1408)

Integrates BlockRun (blockrun.ai) as a new AI provider option via x402 micropayment protocol, allowing users to access top AI models with USDC without requiring individual API keys. - Add BlockRun Base (EVM) and Solana wallet providers to model selector - Implement x402 v2 EIP-712 payment signing for Base (mcp/blockrun_base.go) - Implement x402 v2 SPL TransferChecked signing for Solana (mcp/blockrun_sol.go) - Wire blockrun-base and blockrun-sol into trader factory (auto_trader.go) - Register both providers in supported models API (server.go) - Add BlockRun card UI with wallet key input in Step 0/1 of model config modal - Add BlockRun SVG icon and ModelIcons support - Add setup guides for Base and Solana wallet configuration (docs/) - Available flagship models: GPT-5.4, Claude Opus 4.6, Gemini 3.1 Pro, Grok 3, DeepSeek Chat, MiniMax M2.5
2026-06-04 01:48:22 +08:00 · 2026-03-10 02:54:50 -04:00
parent 034c206874
commit 6f77ed2fcb
12 changed files with 1371 additions and 43 deletions
@@ -143,6 +143,7 @@ func (s *Server) setupRoutes() {
 		// Authentication related routes (no authentication required)
 		api.POST("/register", s.handleRegister)
 		api.POST("/login", s.handleLogin)
+		api.POST("/reset-password", s.handleResetPassword)

 		// Routes requiring authentication
 		protected := api.Group("/", s.authMiddleware())
@@ -3264,6 +3265,8 @@ func (s *Server) handleGetSupportedModels(c *gin.Context) {
 		{"id": "grok", "name": "Grok (xAI)", "provider": "grok", "defaultModel": "grok-3-latest"},
 		{"id": "kimi", "name": "Kimi (Moonshot)", "provider": "kimi", "defaultModel": "moonshot-v1-auto"},
 		{"id": "minimax", "name": "MiniMax", "provider": "minimax", "defaultModel": "MiniMax-M2.5"},
+		{"id": "blockrun-base", "name": "BlockRun (Base Wallet)", "provider": "blockrun-base", "defaultModel": "auto"},
+		{"id": "blockrun-sol", "name": "BlockRun (Solana Wallet)", "provider": "blockrun-sol", "defaultModel": "auto"},
 	}

 	c.JSON(http.StatusOK, supportedModels)
@@ -44,6 +44,19 @@ Use custom AI models or third-party OpenAI-compatible APIs:

 ---

+### 💳 BlockRun Wallet (Pay-per-Request, No API Key)
+
+Access all top AI models by paying with USDC — no API key signup required.
+
+| Provider | Guide | Payment Network |
+|----------|-------|-----------------|
+| BlockRun (Base Wallet) | [blockrun-base-wallet.md](blockrun-base-wallet.md) | Base (EVM) · USDC |
+| BlockRun (Solana Wallet) | [blockrun-sol-wallet.md](blockrun-sol-wallet.md) | Solana · USDC |
+
+**How it works:** Each AI request automatically pays a micro-USDC fee via the [x402 payment protocol](https://blockrun.ai). Your private key signs the payment authorization — no funds leave your wallet until the AI response is delivered.
+
+---
+
 ## 🔑 Prerequisites

 Before starting, ensure you have:
@@ -0,0 +1,126 @@
+# BlockRun Base (EVM) Wallet Setup Guide
+
+This guide explains how to use a Base network EVM wallet to pay for AI usage through BlockRun — no API key required.
+
+**Language:** [English](blockrun-base-wallet.md) | [中文](blockrun-base-wallet.zh-CN.md)
+
+## What is BlockRun?
+
+[BlockRun](https://blockrun.ai) is a decentralized AI inference gateway that lets you access top AI models (Claude, GPT, Gemini, Grok, DeepSeek, etc.) by paying per request with USDC — no monthly subscriptions, no API key signups.
+
+NOFX integrates BlockRun via the **x402 micropayment protocol**: each AI inference request automatically pays a small USDC fee directly from your wallet. You only pay for what you use.
+
+## Why Use BlockRun?
+
+| Feature | Traditional API Key | BlockRun Wallet |
+|---------|-------------------|-----------------|
+| Setup | Register + billing | Just a wallet address |
+| Cost model | Monthly subscription | Pay-per-request |
+| Models | One provider | All top models |
+| Privacy | Account required | Pseudonymous |
+| Control | Rate limits apply | Your wallet, your budget |
+
+## Prerequisites
+
+- An EVM wallet with USDC on **Base network** (chain ID 8453)
+- The wallet private key (hex format: `0x...`)
+
+### Getting USDC on Base
+
+1. Buy USDC on Coinbase and withdraw to Base, **or**
+2. Bridge USDC from Ethereum using [bridge.base.org](https://bridge.base.org), **or**
+3. Swap on [Aerodrome](https://aerodrome.finance) or [Uniswap](https://app.uniswap.org) on Base
+
+> **Tip:** A few dollars of USDC is enough to start — each AI call costs fractions of a cent.
+
+## Step 1: Get Your Wallet Private Key
+
+> ⚠️ **Security Warning:** Never share your private key with anyone. Use a dedicated trading wallet, not your main holdings wallet.
+
+**Option A — Create a new wallet (recommended):**
+1. Open MetaMask → Create New Account
+2. Go to Account Details → Export Private Key
+3. Copy the hex key (starts with `0x`)
+
+**Option B — Use an existing wallet:**
+1. MetaMask → Account Details → Export Private Key
+2. Enter your MetaMask password to reveal the key
+
+**Option C — Generate via CLI:**
+```bash
+# Using cast (foundry)
+cast wallet new
+# Output: Address: 0x... | Private key: 0x...
+```
+
+## Step 2: Fund the Wallet with USDC on Base
+
+Send USDC to your wallet address on Base network:
+- **USDC contract:** `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`
+- **Network:** Base (chain ID 8453)
+- **Recommended starting amount:** $5–$20 USDC
+
+Check your balance at [basescan.org](https://basescan.org).
+
+## Step 3: Configure in NOFX
+
+1. Open NOFX at `http://localhost:3000`
+2. Log in and go to **Config** tab
+3. Click **+ Add AI Model**
+4. In Step 0, scroll to **Via BlockRun Wallet** section
+5. Select **BlockRun · Base Wallet**
+6. In Step 1, configure:
+   - **Wallet Private Key:** Your hex private key (`0x...`)
+   - **Select Model:** Choose from Claude Opus, GPT-5.4, Gemini 3 Pro, Grok 3, DeepSeek R1, or leave as **Auto** for best available
+7. Click **Save**
+
+## How Payment Works
+
+When NOFX sends an AI request:
+
+1. Request goes to `https://blockrun.ai/api/v1/chat/completions`
+2. Server responds with HTTP `402 Payment Required` + payment details
+3. NOFX signs a **ERC-3009 TransferWithAuthorization** (EIP-712) with your private key
+4. Payment signature is attached and request is retried
+5. BlockRun verifies the signature, routes the request to the AI model, and charges USDC
+
+> **Privacy:** Your private key never leaves your NOFX instance. Only the cryptographic signature is sent.
+
+## Available Models via BlockRun
+
+| Model ID | Provider | Use Case |
+|----------|----------|----------|
+| `gpt-5.4` | OpenAI | Flagship (default) |
+| `claude-opus-4.6` | Anthropic | Flagship |
+| `gemini-3.1-pro` | Google | Flagship |
+| `grok-3` | xAI | Flagship |
+| `deepseek-chat` | DeepSeek | Flagship |
+| `minimax-m2.5` | MiniMax | Flagship |
+
+## Security Best Practices
+
+- ✅ Use a **dedicated wallet** with only trading budget, not your main wallet
+- ✅ Keep only a small USDC balance (top up as needed)
+- ✅ Your private key is encrypted at rest in NOFX's database
+- ✅ Signatures are spend-limited — each signature authorizes only the exact amount for one request
+- ❌ Never export or share your private key outside of NOFX
+
+## Troubleshooting
+
+| Issue | Solution |
+|-------|----------|
+| `no private key set` | Check your key was saved correctly; re-enter in Config |
+| `payment retry failed` | Ensure you have USDC on **Base** (not Ethereum mainnet) |
+| `invalid private key` | Key must be hex format with `0x` prefix, 66 chars total |
+| Payment deducted but no response | Check BlockRun status at [blockrun.ai](https://blockrun.ai) |
+| Slow responses | Try selecting a specific model instead of "Auto" |
+
+## Monitoring Spend
+
+Check your USDC balance and transaction history at:
+- [Basescan](https://basescan.org) — search your wallet address
+- [BlockRun dashboard](https://blockrun.ai) — usage history
+
+---
+
+[← Back to Getting Started](README.md)
@@ -0,0 +1,120 @@
+# BlockRun Solana Wallet Setup Guide
+
+This guide explains how to use a Solana wallet to pay for AI usage through BlockRun — no API key required.
+
+**Language:** [English](blockrun-sol-wallet.md) | [中文](blockrun-sol-wallet.zh-CN.md)
+
+## What is BlockRun?
+
+[BlockRun](https://blockrun.ai) is a decentralized AI inference gateway that lets you access top AI models (Claude, GPT, Gemini, Grok, DeepSeek, etc.) by paying per request with USDC — no monthly subscriptions, no API key signups.
+
+NOFX integrates BlockRun via the **x402 micropayment protocol** on Solana: each AI inference request automatically pays a small USDC fee directly from your wallet.
+
+## Prerequisites
+
+- A Solana wallet with USDC on **Solana mainnet**
+- The wallet private key (base58-encoded, 64 bytes — standard Solana keypair format)
+
+### Getting USDC on Solana
+
+1. Buy SOL on any exchange and withdraw to your Solana wallet, then swap to USDC on [Jupiter](https://jup.ag), **or**
+2. Buy USDC directly on an exchange and withdraw to Solana, **or**
+3. Bridge from other chains using [Wormhole](https://wormhole.com)
+
+> **Tip:** A few dollars of USDC is plenty to start.
+
+## Step 1: Export Your Solana Private Key
+
+> ⚠️ **Security Warning:** Use a dedicated wallet for NOFX — not your main holdings wallet.
+
+**From Phantom Wallet:**
+1. Open Phantom → Settings (gear icon)
+2. Security & Privacy → Export Private Key
+3. Enter your password
+4. Copy the base58 key (looks like: `5J...` — a long string of ~88 characters)
+
+**From Solflare:**
+1. Settings → Export Private Key
+2. The key is displayed in base58 format
+
+**From CLI (solana-keygen):**
+```bash
+# View existing keypair
+cat ~/.config/solana/id.json
+# This is a JSON array — convert to base58 using:
+solana-keygen pubkey ~/.config/solana/id.json
+```
+
+> **Note:** NOFX accepts the **base58-encoded 64-byte keypair** (as exported by Phantom/Solflare). This is the standard format for Solana private keys.
+
+## Step 2: Fund the Wallet with USDC on Solana
+
+Send USDC to your Solana wallet:
+- **USDC SPL token mint:** `EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v`
+- **Network:** Solana Mainnet
+- **Recommended starting amount:** $5–$20 USDC
+
+Check your balance at [solscan.io](https://solscan.io) or in your wallet app.
+
+## Step 3: Configure in NOFX
+
+1. Open NOFX at `http://localhost:3000`
+2. Log in and go to **Config** tab
+3. Click **+ Add AI Model**
+4. In Step 0, scroll to **Via BlockRun Wallet** section
+5. Select **BlockRun · Solana Wallet**
+6. In Step 1, configure:
+   - **Wallet Private Key:** Your base58-encoded Solana private key
+   - **Select Model:** Choose from Claude Opus, GPT-5.4, Gemini 3 Pro, Grok 3, DeepSeek R1, or leave as **Auto** for best available
+7. Click **Save**
+
+## How Payment Works
+
+When NOFX sends an AI request:
+
+1. Request goes to `https://sol.blockrun.ai/api/v1/chat/completions`
+2. Server responds with HTTP `402 Payment Required` + payment details (nonce, recipient, amount)
+3. NOFX signs the payment message `blockrun-payment:{nonce}:{recipient}:{amount}` with your **Ed25519** private key
+4. Payment signature is attached and request is retried
+5. BlockRun verifies the Ed25519 signature on-chain and routes to the AI model
+
+> **Privacy:** Your private key never leaves your NOFX instance. Only the cryptographic signature is sent.
+
+## Available Models via BlockRun
+
+| Model ID | Provider | Use Case |
+|----------|----------|----------|
+| `gpt-5.4` | OpenAI | Flagship (default) |
+| `claude-opus-4.6` | Anthropic | Flagship |
+| `gemini-3.1-pro` | Google | Flagship |
+| `grok-3` | xAI | Flagship |
+| `deepseek-chat` | DeepSeek | Flagship |
+| `minimax-m2.5` | MiniMax | Flagship |
+
+## Security Best Practices
+
+- ✅ Use a **dedicated trading wallet** with only your AI budget
+- ✅ Keep only a small USDC balance (top up as needed)
+- ✅ Your private key is AES-256 encrypted at rest in NOFX's database
+- ✅ Ed25519 signatures are one-time — each authorizes only one specific payment
+- ❌ Never use your main SOL holdings wallet as the NOFX trading wallet
+
+## Troubleshooting
+
+| Issue | Solution |
+|-------|----------|
+| `unexpected key length` | Ensure you exported the full 64-byte keypair (not just the 32-byte seed) |
+| `failed to decode base58` | Key must be base58 encoded (standard Phantom/Solflare export format) |
+| `payment retry failed` | Ensure you have USDC on **Solana mainnet** (not devnet) |
+| No response from server | Check `sol.blockrun.ai` is reachable from your server |
+| Slow responses | Try selecting a specific model instead of "Auto" |
+
+## Monitoring Spend
+
+Check your USDC balance and transaction history at:
+- [Solscan](https://solscan.io) — search your wallet address, filter by USDC token
+- [BlockRun dashboard](https://blockrun.ai) — usage history
+
+---
+
+[← Back to Getting Started](README.md)
@@ -21,11 +21,14 @@ require (
 )

 require (
+	filippo.io/edwards25519 v1.0.0-rc.1 // indirect
 	github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20251001021608-1fe7b43fc4d6 // indirect
+	github.com/andres-erbsen/clock v0.0.0-20160526145045-9e14626cd129 // indirect
 	github.com/antihax/optional v1.0.0 // indirect
 	github.com/armon/go-radix v1.0.0 // indirect
 	github.com/bitly/go-simplejson v0.5.1 // indirect
 	github.com/bits-and-blooms/bitset v1.24.0 // indirect
+	github.com/blendle/zapdriver v1.3.1 // indirect
 	github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc // indirect
 	github.com/bybit-exchange/bybit.go.api v0.0.0-20250727214011-c9347d6804d6 // indirect
 	github.com/bytedance/sonic v1.14.0 // indirect
@@ -43,7 +46,11 @@ require (
 	github.com/elliottech/poseidon_crypto v0.0.11 // indirect
 	github.com/ethereum/c-kzg-4844/v2 v2.1.5 // indirect
 	github.com/ethereum/go-verkle v0.2.2 // indirect
+	github.com/fatih/color v1.16.0 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.8 // indirect
+	github.com/gagliardetto/binary v0.8.0 // indirect
+	github.com/gagliardetto/solana-go v1.14.0 // indirect
+	github.com/gagliardetto/treeout v0.1.4 // indirect
 	github.com/gateio/gateapi-go/v6 v6.104.3 // indirect
 	github.com/gin-contrib/sse v1.1.0 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
@@ -61,15 +68,20 @@ require (
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/jpillora/backoff v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/compress v1.16.0 // indirect
 	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
 	github.com/lib/pq v1.10.9 // indirect
+	github.com/logrusorgru/aurora v2.0.3+incompatible // indirect
 	github.com/mailru/easyjson v0.9.1 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-sqlite3 v1.14.32 // indirect
+	github.com/mitchellh/go-testing-interface v1.14.1 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/mostynb/zstdpool-freelist v0.0.0-20201229113212-927304c0c3b1 // indirect
+	github.com/mr-tron/base58 v1.2.0 // indirect
 	github.com/ncruces/go-strftime v0.1.9 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
@@ -81,6 +93,7 @@ require (
 	github.com/shopspring/decimal v1.4.0 // indirect
 	github.com/sonirico/vago v0.10.0 // indirect
 	github.com/sonirico/vago/lol v0.0.0-20250901170347-2d1d82c510bd // indirect
+	github.com/streamingfast/logging v0.0.0-20230608130331-f22c91403091 // indirect
 	github.com/supranational/blst v0.3.16 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.3.0 // indirect
@@ -90,14 +103,21 @@ require (
 	go.elastic.co/apm/module/apmzerolog/v2 v2.7.1 // indirect
 	go.elastic.co/apm/v2 v2.7.1 // indirect
 	go.elastic.co/fastjson v1.5.1 // indirect
+	go.mongodb.org/mongo-driver v1.12.2 // indirect
+	go.uber.org/atomic v1.7.0 // indirect
 	go.uber.org/mock v0.5.0 // indirect
+	go.uber.org/multierr v1.6.0 // indirect
+	go.uber.org/ratelimit v0.2.0 // indirect
+	go.uber.org/zap v1.21.0 // indirect
 	golang.org/x/arch v0.20.0 // indirect
 	golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b // indirect
 	golang.org/x/mod v0.27.0 // indirect
 	golang.org/x/net v0.43.0 // indirect
 	golang.org/x/sync v0.17.0 // indirect
 	golang.org/x/sys v0.36.0 // indirect
+	golang.org/x/term v0.35.0 // indirect
 	golang.org/x/text v0.29.0 // indirect
+	golang.org/x/time v0.9.0 // indirect
 	golang.org/x/tools v0.36.0 // indirect
 	google.golang.org/protobuf v1.36.9 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
@@ -1,3 +1,5 @@
+filippo.io/edwards25519 v1.0.0-rc.1 h1:m0VOOB23frXZvAOK44usCgLWvtsxIoMCTBGJZlpmGfU=
+filippo.io/edwards25519 v1.0.0-rc.1/go.mod h1:N1IkdkCkiLB6tki+MYJoSx2JTY9NUlxZE7eHn5EwJns=
 github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20251001021608-1fe7b43fc4d6 h1:1zYrtlhrZ6/b6SAjLSfKzWtdgqK0U+HtH/VcBWh1BaU=
 github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20251001021608-1fe7b43fc4d6/go.mod h1:ioLG6R+5bUSO1oeGSDxOV3FADARuMoytZCSX6MEMQkI=
 github.com/StackExchange/wmi v1.2.1 h1:VIkavFPXSjcnS+O8yTq7NI32k0R5Aj+v39y29VYDOSA=
@@ -8,16 +10,21 @@ github.com/adshao/go-binance/v2 v2.8.9 h1:NX+4u/LgEmrjTS7OMWU+9ZgfHKFM61RPhnr9/S
 github.com/adshao/go-binance/v2 v2.8.9/go.mod h1:XkkuecSyJKPolaCGf/q4ovJYB3t0P+7RUYTbGr+LMGM=
 github.com/agiledragon/gomonkey/v2 v2.13.0 h1:B24Jg6wBI1iB8EFR1c+/aoTg7QN/Cum7YffG8KMIyYo=
 github.com/agiledragon/gomonkey/v2 v2.13.0/go.mod h1:ap1AmDzcVOAz1YpeJ3TCzIgstoaWLA6jbbgxfB4w2iY=
+github.com/andres-erbsen/clock v0.0.0-20160526145045-9e14626cd129 h1:MzBOUgng9orim59UnfUTLRjMpd09C5uEVQ6RPGeCaVI=
+github.com/andres-erbsen/clock v0.0.0-20160526145045-9e14626cd129/go.mod h1:rFgpPQZYZ8vdbc+48xibu8ALc3yeyd64IhHS+PU6Yyg=
 github.com/antihax/optional v1.0.0 h1:xK2lYat7ZLaVVcIuj82J8kIro4V6kDe0AUDFboUCwcg=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
 github.com/armon/go-radix v1.0.0 h1:F4z6KzEeeQIMeLFa97iZU6vupzoecKdU5TX24SNppXI=
 github.com/armon/go-radix v1.0.0/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
+github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA=
 github.com/bitly/go-simplejson v0.5.0 h1:6IH+V8/tVMab511d5bn4M7EwGXZf9Hj6i2xSwkNEM+Y=
 github.com/bitly/go-simplejson v0.5.0/go.mod h1:cXHtHw4XUPsvGaxgjIAn8PhEWG9NfngEKAMDJEczWVA=
 github.com/bitly/go-simplejson v0.5.1 h1:xgwPbetQScXt1gh9BmoJ6j9JMr3TElvuIyjR8pgdoow=
 github.com/bitly/go-simplejson v0.5.1/go.mod h1:YOPVLzCfwK14b4Sff3oP1AmGhI9T9Vsg84etUnlyp+Q=
 github.com/bits-and-blooms/bitset v1.24.0 h1:H4x4TuulnokZKvHLfzVRTHJfFfnHEeSYJizujEZvmAM=
 github.com/bits-and-blooms/bitset v1.24.0/go.mod h1:7hO7Gc7Pp1vODcmWvKMRA9BNmbv6a/7QIWpPxHddWR8=
+github.com/blendle/zapdriver v1.3.1 h1:C3dydBOWYRiOk+B8X9IVZ5IOe+7cl+tGOexN4QqHfpE=
+github.com/blendle/zapdriver v1.3.1/go.mod h1:mdXfREi6u5MArG4j9fewC+FGnXaBR+T4Ox4J2u4eHCc=
 github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 h1:DDGfHa7BWjL4YnC6+E63dPcxHo2sUxDIu8g3QgEJdRY=
 github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869/go.mod h1:Ekp36dRnpXw/yCqJaO+ZrUyxD+3VXMFFr56k5XYrpB4=
 github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc h1:biVzkmvwrH8WK8raXaxBx6fRVTlJILwEwQGL1I/ByEI=
@@ -66,10 +73,18 @@ github.com/ethereum/go-ethereum v1.16.7 h1:qeM4TvbrWK0UC0tgkZ7NiRsmBGwsjqc64BHo2
 github.com/ethereum/go-ethereum v1.16.7/go.mod h1:Fs6QebQbavneQTYcA39PEKv2+zIjX7rPUZ14DER46wk=
 github.com/ethereum/go-verkle v0.2.2 h1:I2W0WjnrFUIzzVPwm8ykY+7pL2d4VhlsePn4j7cnFk8=
 github.com/ethereum/go-verkle v0.2.2/go.mod h1:M3b90YRnzqKyyzBEWJGqj8Qff4IDeXnzFw0P9bFw3uk=
+github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
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@@ -99,8 +114,10 @@ github.com/golang-jwt/jwt/v5 v5.2.0 h1:d/ix8ftRUorsN+5eMIlF4T6J8CAt9rch3My2winC1
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@@ -137,10 +154,18 @@ github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX
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@@ -151,6 +176,8 @@ github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
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@@ -166,6 +193,8 @@ github.com/mattn/go-sqlite3 v1.14.32 h1:JD12Ag3oLy1zQA+BNn74xRgaBbdhbNIDYvQUEuuE
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@@ -174,12 +203,18 @@ github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w
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@@ -203,6 +238,7 @@ github.com/rs/zerolog v1.34.0 h1:k43nTLIwcTVQAncfCw4KZ2VY6ukYoZaBPNOE8txlOeY=
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@@ -219,12 +255,15 @@ github.com/sonirico/vago v0.10.0 h1:y+4Wo56tK+88a5lUwVrZUO2RRLaPcBgjI5cupKpT1Oc=
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@@ -233,6 +272,7 @@ github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu
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@@ -249,53 +289,120 @@ github.com/vmihailenco/msgpack/v5 v5.4.1 h1:cQriyiUvjTwOHg8QZaPihLWeRAAVoCpE00IU
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@@ -0,0 +1,456 @@
+package mcp
+
+import (
+	"bytes"
+	"crypto/ecdsa"
+	"crypto/rand"
+	"encoding/base64"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"io"
+	"math/big"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/ethereum/go-ethereum/crypto"
+	"golang.org/x/crypto/sha3"
+)
+
+const (
+	ProviderBlockRunBase   = "blockrun-base"
+	DefaultBlockRunBaseURL = "https://blockrun.ai"
+	DefaultBlockRunModel = "gpt-5.4"
+	BlockRunChatEndpoint   = "/api/v1/chat/completions"
+	BaseUSDCContract       = "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
+	BaseChainID      int64 = 8453
+	BaseNetwork            = "eip155:8453"
+)
+
+// EIP-712 type hashes for USDC TransferWithAuthorization (ERC-3009)
+var (
+	eip712DomainTypeHash    = keccak256String("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)")
+	transferWithAuthTypeHash = keccak256String("TransferWithAuthorization(address from,address to,uint256 value,uint256 validAfter,uint256 validBefore,bytes32 nonce)")
+)
+
+func keccak256String(s string) []byte {
+	h := sha3.NewLegacyKeccak256()
+	h.Write([]byte(s))
+	return h.Sum(nil)
+}
+
+func keccak256Bytes(data ...[]byte) []byte {
+	h := sha3.NewLegacyKeccak256()
+	for _, b := range data {
+		h.Write(b)
+	}
+	return h.Sum(nil)
+}
+
+// BlockRunBaseClient implements AIClient using BlockRun's API with x402 v2 EIP-712 payment signing.
+type BlockRunBaseClient struct {
+	*Client
+	privateKey *ecdsa.PrivateKey
+}
+
+// NewBlockRunBaseClient creates a BlockRun Base wallet client (backward compatible).
+func NewBlockRunBaseClient() AIClient {
+	return NewBlockRunBaseClientWithOptions()
+}
+
+// NewBlockRunBaseClientWithOptions creates a BlockRun Base wallet client.
+func NewBlockRunBaseClientWithOptions(opts ...ClientOption) AIClient {
+	baseOpts := []ClientOption{
+		WithProvider(ProviderBlockRunBase),
+		WithModel(DefaultBlockRunModel),
+		WithBaseURL(DefaultBlockRunBaseURL),
+	}
+	allOpts := append(baseOpts, opts...)
+	baseClient := NewClient(allOpts...).(*Client)
+	baseClient.UseFullURL = true
+	baseClient.BaseURL = DefaultBlockRunBaseURL + BlockRunChatEndpoint
+
+	c := &BlockRunBaseClient{Client: baseClient}
+	baseClient.hooks = c
+	return c
+}
+
+// SetAPIKey stores the EVM private key (hex, with or without 0x prefix).
+// customModel selects the AI model to use (e.g. "claude-sonnet-4.6"); empty means default.
+func (c *BlockRunBaseClient) SetAPIKey(apiKey string, customURL string, customModel string) {
+	hexKey := strings.TrimPrefix(apiKey, "0x")
+	privKey, err := crypto.HexToECDSA(hexKey)
+	if err != nil {
+		c.logger.Warnf("⚠️  [MCP] BlockRun Base: invalid private key: %v", err)
+	} else {
+		c.privateKey = privKey
+		c.APIKey = apiKey
+		addr := crypto.PubkeyToAddress(privKey.PublicKey).Hex()
+		c.logger.Infof("🔧 [MCP] BlockRun Base wallet: %s", addr)
+	}
+	if customModel != "" {
+		c.Model = customModel
+		c.logger.Infof("🔧 [MCP] BlockRun Base model: %s", customModel)
+	} else {
+		c.logger.Infof("🔧 [MCP] BlockRun Base model: %s", DefaultBlockRunModel)
+	}
+}
+
+func (c *BlockRunBaseClient) setAuthHeader(reqHeaders http.Header) {
+	// No Bearer token — payment is via x402 signing
+}
+
+// call overrides the base call to handle HTTP 402 x402 v2 payment flow.
+func (c *BlockRunBaseClient) call(systemPrompt, userPrompt string) (string, error) {
+	c.logger.Infof("📡 [BlockRun Base] Request AI Server: %s", c.BaseURL)
+
+	requestBody := c.hooks.buildMCPRequestBody(systemPrompt, userPrompt)
+	jsonData, err := c.hooks.marshalRequestBody(requestBody)
+	if err != nil {
+		return "", err
+	}
+
+	url := c.hooks.buildUrl()
+	req, err := c.hooks.buildRequest(url, jsonData)
+	if err != nil {
+		return "", fmt.Errorf("failed to create request: %w", err)
+	}
+
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return "", fmt.Errorf("failed to send request: %w", err)
+	}
+	defer resp.Body.Close()
+
+	// Handle x402 v2 Payment Required
+	if resp.StatusCode == http.StatusPaymentRequired {
+		paymentHeader := resp.Header.Get("X-Payment-Required")
+		if paymentHeader == "" {
+			return "", fmt.Errorf("received 402 but no X-Payment-Required header")
+		}
+
+		paymentSig, err := c.signPayment(paymentHeader)
+		if err != nil {
+			return "", fmt.Errorf("failed to sign x402 payment: %w", err)
+		}
+
+		req2, err := c.hooks.buildRequest(url, jsonData)
+		if err != nil {
+			return "", fmt.Errorf("failed to build retry request: %w", err)
+		}
+		req2.Header.Set("X-Payment", paymentSig)
+
+		resp2, err := c.httpClient.Do(req2)
+		if err != nil {
+			return "", fmt.Errorf("failed to send payment retry: %w", err)
+		}
+		defer resp2.Body.Close()
+
+		body2, err := io.ReadAll(resp2.Body)
+		if err != nil {
+			return "", fmt.Errorf("failed to read payment retry response: %w", err)
+		}
+		if resp2.StatusCode != http.StatusOK {
+			return "", fmt.Errorf("BlockRun payment retry failed (status %d): %s", resp2.StatusCode, string(body2))
+		}
+		return c.hooks.parseMCPResponse(body2)
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", fmt.Errorf("failed to read response: %w", err)
+	}
+	if resp.StatusCode != http.StatusOK {
+		return "", fmt.Errorf("BlockRun API error (status %d): %s", resp.StatusCode, string(body))
+	}
+	return c.hooks.parseMCPResponse(body)
+}
+
+// x402v2PaymentRequired is the structure of the X-Payment-Required header (x402 v2).
+type x402v2PaymentRequired struct {
+	X402Version int `json:"x402Version"`
+	Accepts     []struct {
+		Scheme            string            `json:"scheme"`
+		Network           string            `json:"network"`
+		Amount            string            `json:"amount"`
+		Asset             string            `json:"asset"`
+		PayTo             string            `json:"payTo"`
+		MaxTimeoutSeconds int               `json:"maxTimeoutSeconds"`
+		Extra             map[string]string `json:"extra"`
+	} `json:"accepts"`
+	Resource *struct {
+		URL         string `json:"url"`
+		Description string `json:"description"`
+		MimeType    string `json:"mimeType"`
+	} `json:"resource"`
+}
+
+// signPayment parses the X-Payment-Required header (x402 v2) and returns a signed X-Payment value.
+func (c *BlockRunBaseClient) signPayment(paymentHeaderB64 string) (string, error) {
+	if c.privateKey == nil {
+		return "", fmt.Errorf("no private key set for BlockRun Base wallet")
+	}
+
+	// Decode base64 → JSON
+	decoded, err := base64.RawStdEncoding.DecodeString(paymentHeaderB64)
+	if err != nil {
+		decoded, err = base64.StdEncoding.DecodeString(paymentHeaderB64)
+		if err != nil {
+			return "", fmt.Errorf("failed to base64-decode payment header: %w", err)
+		}
+	}
+
+	var req x402v2PaymentRequired
+	if err := json.Unmarshal(decoded, &req); err != nil {
+		return "", fmt.Errorf("failed to parse x402 v2 payment header: %w", err)
+	}
+
+	if len(req.Accepts) == 0 {
+		return "", fmt.Errorf("no payment options in x402 response")
+	}
+
+	opt := req.Accepts[0]
+	recipient := opt.PayTo
+	amount := opt.Amount
+	network := opt.Network
+	asset := opt.Asset
+	extra := opt.Extra
+	maxTimeout := opt.MaxTimeoutSeconds
+	if maxTimeout == 0 {
+		maxTimeout = 300
+	}
+
+	resourceURL := ""
+	resourceDesc := ""
+	resourceMime := "application/json"
+	if req.Resource != nil {
+		resourceURL = req.Resource.URL
+		resourceDesc = req.Resource.Description
+		resourceMime = req.Resource.MimeType
+	}
+
+	// Timestamps: validAfter = now-600 (clock skew), validBefore = now+maxTimeout
+	now := time.Now().Unix()
+	validAfter := now - 600
+	validBefore := now + int64(maxTimeout)
+
+	// Random nonce (bytes32)
+	nonceBytes := make([]byte, 32)
+	if _, err := rand.Read(nonceBytes); err != nil {
+		return "", fmt.Errorf("failed to generate nonce: %w", err)
+	}
+	nonce := "0x" + hex.EncodeToString(nonceBytes)
+
+	// Sender address
+	senderAddr := crypto.PubkeyToAddress(c.privateKey.PublicKey).Hex()
+
+	// Build EIP-712 domain separator
+	domainName := "USD Coin"
+	domainVersion := "2"
+	if extra != nil {
+		if v, ok := extra["name"]; ok && v != "" {
+			domainName = v
+		}
+		if v, ok := extra["version"]; ok && v != "" {
+			domainVersion = v
+		}
+	}
+
+	domainSeparator, err := buildDomainSeparatorDynamic(domainName, domainVersion, network, asset)
+	if err != nil {
+		return "", fmt.Errorf("failed to build domain separator: %w", err)
+	}
+
+	// Build struct hash
+	amountBig, err := parseBigInt(amount)
+	if err != nil {
+		return "", fmt.Errorf("invalid amount: %w", err)
+	}
+
+	structHash, err := buildTransferWithAuthHashDynamic(senderAddr, recipient, amountBig, validAfter, validBefore, nonce)
+	if err != nil {
+		return "", fmt.Errorf("failed to build struct hash: %w", err)
+	}
+
+	// EIP-712 digest
+	digest := make([]byte, 0, 66)
+	digest = append(digest, 0x19, 0x01)
+	digest = append(digest, domainSeparator...)
+	digest = append(digest, structHash...)
+	hash := keccak256Bytes(digest)
+
+	// Sign with secp256k1
+	sig, err := crypto.Sign(hash, c.privateKey)
+	if err != nil {
+		return "", fmt.Errorf("failed to sign: %w", err)
+	}
+	// Adjust V: go-ethereum returns 0/1, EIP-712 expects 27/28
+	if sig[64] < 27 {
+		sig[64] += 27
+	}
+
+	sigHex := "0x" + hex.EncodeToString(sig)
+
+	// Build x402 v2 payment payload
+	paymentData := map[string]interface{}{
+		"x402Version": 2,
+		"resource": map[string]string{
+			"url":         resourceURL,
+			"description": resourceDesc,
+			"mimeType":    resourceMime,
+		},
+		"accepted": map[string]interface{}{
+			"scheme":            "exact",
+			"network":           network,
+			"amount":            amount,
+			"asset":             asset,
+			"payTo":             recipient,
+			"maxTimeoutSeconds": maxTimeout,
+			"extra":             extra,
+		},
+		"payload": map[string]interface{}{
+			"signature": sigHex,
+			"authorization": map[string]string{
+				"from":        senderAddr,
+				"to":          recipient,
+				"value":       amount,
+				"validAfter":  fmt.Sprintf("%d", validAfter),
+				"validBefore": fmt.Sprintf("%d", validBefore),
+				"nonce":       nonce,
+			},
+		},
+		"extensions": map[string]interface{}{},
+	}
+
+	resultJSON, err := json.Marshal(paymentData)
+	if err != nil {
+		return "", fmt.Errorf("failed to marshal payment result: %w", err)
+	}
+
+	return base64.StdEncoding.EncodeToString(resultJSON), nil
+}
+
+// buildDomainSeparatorDynamic builds the EIP-712 domain separator using runtime values.
+func buildDomainSeparatorDynamic(name, version, network, asset string) ([]byte, error) {
+	// Extract chain ID from network string like "eip155:8453"
+	chainID := new(big.Int).SetInt64(BaseChainID)
+	if strings.HasPrefix(network, "eip155:") {
+		parts := strings.SplitN(network, ":", 2)
+		if len(parts) == 2 {
+			if n, ok := new(big.Int).SetString(parts[1], 10); ok {
+				chainID = n
+			}
+		}
+	}
+
+	contractAddr, err := hex.DecodeString(strings.TrimPrefix(asset, "0x"))
+	if err != nil {
+		return nil, fmt.Errorf("invalid contract address: %w", err)
+	}
+
+	nameHash := keccak256String(name)
+	versionHash := keccak256String(version)
+
+	encoded := make([]byte, 0, 5*32)
+	encoded = append(encoded, leftPad32(eip712DomainTypeHash)...)
+	encoded = append(encoded, leftPad32(nameHash)...)
+	encoded = append(encoded, leftPad32(versionHash)...)
+	encoded = append(encoded, leftPad32(chainID.Bytes())...)
+	addrPadded := make([]byte, 32)
+	copy(addrPadded[32-len(contractAddr):], contractAddr)
+	encoded = append(encoded, addrPadded...)
+
+	return keccak256Bytes(encoded), nil
+}
+
+// buildTransferWithAuthHashDynamic builds the struct hash for TransferWithAuthorization.
+func buildTransferWithAuthHashDynamic(from, to string, value *big.Int, validAfter, validBefore int64, nonce string) ([]byte, error) {
+	fromBytes, err := hexToAddress(from)
+	if err != nil {
+		return nil, fmt.Errorf("invalid from address: %w", err)
+	}
+	toBytes, err := hexToAddress(to)
+	if err != nil {
+		return nil, fmt.Errorf("invalid to address: %w", err)
+	}
+	nonceBytes, err := hexToBytes32(nonce)
+	if err != nil {
+		return nil, fmt.Errorf("invalid nonce: %w", err)
+	}
+
+	validAfterBig := new(big.Int).SetInt64(validAfter)
+	validBeforeBig := new(big.Int).SetInt64(validBefore)
+
+	encoded := make([]byte, 0, 7*32)
+	encoded = append(encoded, leftPad32(transferWithAuthTypeHash)...)
+	encoded = append(encoded, leftPad32(fromBytes)...)
+	encoded = append(encoded, leftPad32(toBytes)...)
+	encoded = append(encoded, leftPad32(value.Bytes())...)
+	encoded = append(encoded, leftPad32(validAfterBig.Bytes())...)
+	encoded = append(encoded, leftPad32(validBeforeBig.Bytes())...)
+	encoded = append(encoded, leftPad32(nonceBytes)...)
+
+	return keccak256Bytes(encoded), nil
+}
+
+func hexToAddress(s string) ([]byte, error) {
+	s = strings.TrimPrefix(s, "0x")
+	b, err := hex.DecodeString(s)
+	if err != nil {
+		return nil, err
+	}
+	if len(b) != 20 {
+		return nil, fmt.Errorf("address must be 20 bytes, got %d", len(b))
+	}
+	return b, nil
+}
+
+func hexToBytes32(s string) ([]byte, error) {
+	s = strings.TrimPrefix(s, "0x")
+	b, err := hex.DecodeString(s)
+	if err != nil {
+		return nil, err
+	}
+	if len(b) > 32 {
+		return nil, fmt.Errorf("nonce too long: %d bytes", len(b))
+	}
+	return b, nil
+}
+
+func parseBigInt(s string) (*big.Int, error) {
+	s = strings.TrimPrefix(s, "0x")
+	n := new(big.Int)
+	if _, ok := n.SetString(s, 16); ok {
+		return n, nil
+	}
+	if _, ok := n.SetString(s, 10); ok {
+		return n, nil
+	}
+	return nil, fmt.Errorf("cannot parse big.Int from %q", s)
+}
+
+// leftPad32 pads a byte slice to 32 bytes on the left (ABI encoding).
+func leftPad32(b []byte) []byte {
+	if len(b) >= 32 {
+		return b[:32]
+	}
+	padded := make([]byte, 32)
+	copy(padded[32-len(b):], b)
+	return padded
+}
+
+// buildUrl returns the full BlockRun endpoint URL.
+func (c *BlockRunBaseClient) buildUrl() string {
+	return DefaultBlockRunBaseURL + BlockRunChatEndpoint
+}
+
+// buildRequest creates the HTTP request without an Authorization header.
+func (c *BlockRunBaseClient) buildRequest(url string, jsonData []byte) (*http.Request, error) {
+	req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
+	if err != nil {
+		return nil, fmt.Errorf("fail to build request: %w", err)
+	}
+	req.Header.Set("Content-Type", "application/json")
+	return req, nil
+}
@@ -0,0 +1,371 @@
+package mcp
+
+import (
+	"bytes"
+	"context"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+
+	"github.com/gagliardetto/solana-go"
+	"github.com/gagliardetto/solana-go/programs/compute-budget"
+	"github.com/gagliardetto/solana-go/programs/token"
+	"github.com/gagliardetto/solana-go/rpc"
+)
+
+const (
+	ProviderBlockRunSol   = "blockrun-sol"
+	DefaultBlockRunSolURL = "https://sol.blockrun.ai"
+	SolanaUSDCMint        = "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
+	SolanaNetwork         = "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
+	SolanaMainnetRPC      = "https://api.mainnet-beta.solana.com"
+
+	// Compute budget defaults (match @x402/svm)
+	computeUnitLimit = uint32(8000)
+	computeUnitPrice = uint64(1)
+)
+
+// BlockRunSolClient implements AIClient using BlockRun's Solana x402 v2 payment protocol.
+type BlockRunSolClient struct {
+	*Client
+	keypair solana.PrivateKey
+}
+
+// NewBlockRunSolClient creates a BlockRun Solana wallet client (backward compatible).
+func NewBlockRunSolClient() AIClient {
+	return NewBlockRunSolClientWithOptions()
+}
+
+// NewBlockRunSolClientWithOptions creates a BlockRun Solana wallet client.
+func NewBlockRunSolClientWithOptions(opts ...ClientOption) AIClient {
+	baseOpts := []ClientOption{
+		WithProvider(ProviderBlockRunSol),
+		WithModel(DefaultBlockRunModel),
+		WithBaseURL(DefaultBlockRunSolURL),
+	}
+	allOpts := append(baseOpts, opts...)
+	baseClient := NewClient(allOpts...).(*Client)
+	baseClient.UseFullURL = true
+	baseClient.BaseURL = DefaultBlockRunSolURL + BlockRunChatEndpoint
+
+	c := &BlockRunSolClient{Client: baseClient}
+	baseClient.hooks = c
+	return c
+}
+
+// SetAPIKey stores the Solana wallet private key (base58-encoded 64-byte keypair).
+// customModel selects the AI model; empty means default.
+func (c *BlockRunSolClient) SetAPIKey(apiKey string, customURL string, customModel string) {
+	kp, err := solana.PrivateKeyFromBase58(strings.TrimSpace(apiKey))
+	if err != nil {
+		c.logger.Warnf("⚠️  [MCP] BlockRun Sol: failed to parse private key: %v", err)
+		return
+	}
+	c.keypair = kp
+	c.APIKey = apiKey
+	c.logger.Infof("🔧 [MCP] BlockRun Sol wallet: %s", kp.PublicKey().String())
+
+	if customModel != "" {
+		c.Model = customModel
+		c.logger.Infof("🔧 [MCP] BlockRun Sol model: %s", customModel)
+	} else {
+		c.logger.Infof("🔧 [MCP] BlockRun Sol model: %s", DefaultBlockRunModel)
+	}
+}
+
+func (c *BlockRunSolClient) setAuthHeader(reqHeaders http.Header) {
+	// No Bearer token — payment is via x402 signing
+}
+
+// call overrides the base call to handle HTTP 402 x402 v2 Solana payment flow.
+func (c *BlockRunSolClient) call(systemPrompt, userPrompt string) (string, error) {
+	c.logger.Infof("📡 [BlockRun Sol] Request AI Server: %s", c.BaseURL)
+
+	requestBody := c.hooks.buildMCPRequestBody(systemPrompt, userPrompt)
+	jsonData, err := c.hooks.marshalRequestBody(requestBody)
+	if err != nil {
+		return "", err
+	}
+
+	url := c.hooks.buildUrl()
+	req, err := c.hooks.buildRequest(url, jsonData)
+	if err != nil {
+		return "", fmt.Errorf("failed to create request: %w", err)
+	}
+
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return "", fmt.Errorf("failed to send request: %w", err)
+	}
+	defer resp.Body.Close()
+
+	// Handle x402 v2 Payment Required
+	if resp.StatusCode == http.StatusPaymentRequired {
+		paymentHeader := resp.Header.Get("X-Payment-Required")
+		if paymentHeader == "" {
+			return "", fmt.Errorf("received 402 but no X-Payment-Required header")
+		}
+
+		paymentSig, err := c.signSolanaPayment(paymentHeader)
+		if err != nil {
+			return "", fmt.Errorf("failed to sign Solana x402 payment: %w", err)
+		}
+
+		req2, err := c.hooks.buildRequest(url, jsonData)
+		if err != nil {
+			return "", fmt.Errorf("failed to build retry request: %w", err)
+		}
+		req2.Header.Set("X-Payment", paymentSig)
+
+		resp2, err := c.httpClient.Do(req2)
+		if err != nil {
+			return "", fmt.Errorf("failed to send payment retry: %w", err)
+		}
+		defer resp2.Body.Close()
+
+		body2, err := io.ReadAll(resp2.Body)
+		if err != nil {
+			return "", fmt.Errorf("failed to read payment retry response: %w", err)
+		}
+		if resp2.StatusCode != http.StatusOK {
+			return "", fmt.Errorf("BlockRun Sol payment retry failed (status %d): %s", resp2.StatusCode, string(body2))
+		}
+		return c.hooks.parseMCPResponse(body2)
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", fmt.Errorf("failed to read response: %w", err)
+	}
+	if resp.StatusCode != http.StatusOK {
+		return "", fmt.Errorf("BlockRun Sol API error (status %d): %s", resp.StatusCode, string(body))
+	}
+	return c.hooks.parseMCPResponse(body)
+}
+
+// solanaPaymentOption is an entry in the accepts[] array of the x402 v2 response.
+type solanaPaymentOption struct {
+	Scheme            string            `json:"scheme"`
+	Network           string            `json:"network"`
+	Amount            string            `json:"amount"`
+	Asset             string            `json:"asset"`
+	PayTo             string            `json:"payTo"`
+	MaxTimeoutSeconds int               `json:"maxTimeoutSeconds"`
+	Extra             map[string]string `json:"extra"`
+}
+
+// x402v2SolanaRequired is the parsed X-Payment-Required header for Solana.
+type x402v2SolanaRequired struct {
+	X402Version int                   `json:"x402Version"`
+	Accepts     []solanaPaymentOption `json:"accepts"`
+	Resource    *struct {
+		URL         string `json:"url"`
+		Description string `json:"description"`
+		MimeType    string `json:"mimeType"`
+	} `json:"resource"`
+}
+
+// signSolanaPayment parses the X-Payment-Required header and builds a signed x402 v2 Solana payload.
+func (c *BlockRunSolClient) signSolanaPayment(paymentHeaderB64 string) (string, error) {
+	if c.keypair == nil {
+		return "", fmt.Errorf("no private key set for BlockRun Sol wallet")
+	}
+
+	// Decode base64 → JSON
+	decoded, err := base64.RawStdEncoding.DecodeString(paymentHeaderB64)
+	if err != nil {
+		decoded, err = base64.StdEncoding.DecodeString(paymentHeaderB64)
+		if err != nil {
+			return "", fmt.Errorf("failed to base64-decode payment header: %w", err)
+		}
+	}
+
+	var req x402v2SolanaRequired
+	if err := json.Unmarshal(decoded, &req); err != nil {
+		return "", fmt.Errorf("failed to parse x402 v2 Solana header: %w", err)
+	}
+
+	// Find the Solana option
+	var opt *solanaPaymentOption
+	for i := range req.Accepts {
+		if strings.HasPrefix(req.Accepts[i].Network, "solana:") {
+			opt = &req.Accepts[i]
+			break
+		}
+	}
+	if opt == nil {
+		return "", fmt.Errorf("no Solana payment option in x402 response")
+	}
+
+	recipient := opt.PayTo
+	amount := opt.Amount
+	feePayer := ""
+	if opt.Extra != nil {
+		feePayer = opt.Extra["feePayer"]
+	}
+	if feePayer == "" {
+		return "", fmt.Errorf("feePayer missing from Solana x402 extra")
+	}
+
+	maxTimeout := opt.MaxTimeoutSeconds
+	if maxTimeout == 0 {
+		maxTimeout = 300
+	}
+
+	resourceURL := DefaultBlockRunSolURL + BlockRunChatEndpoint
+	resourceDesc := ""
+	resourceMime := "application/json"
+	if req.Resource != nil {
+		resourceURL = req.Resource.URL
+		resourceDesc = req.Resource.Description
+		resourceMime = req.Resource.MimeType
+	}
+
+	// Build the SPL TransferChecked transaction
+	txB64, err := c.buildSolanaTransferTx(recipient, feePayer, amount)
+	if err != nil {
+		return "", fmt.Errorf("failed to build Solana transfer tx: %w", err)
+	}
+
+	// Build x402 v2 payment payload
+	paymentData := map[string]interface{}{
+		"x402Version": 2,
+		"resource": map[string]string{
+			"url":         resourceURL,
+			"description": resourceDesc,
+			"mimeType":    resourceMime,
+		},
+		"accepted": map[string]interface{}{
+			"scheme":            "exact",
+			"network":           SolanaNetwork,
+			"amount":            amount,
+			"asset":             SolanaUSDCMint,
+			"payTo":             recipient,
+			"maxTimeoutSeconds": maxTimeout,
+			"extra":             opt.Extra,
+		},
+		"payload": map[string]string{
+			"transaction": txB64,
+		},
+		"extensions": map[string]interface{}{},
+	}
+
+	resultJSON, err := json.Marshal(paymentData)
+	if err != nil {
+		return "", fmt.Errorf("failed to marshal Solana payment: %w", err)
+	}
+
+	return base64.StdEncoding.EncodeToString(resultJSON), nil
+}
+
+// buildSolanaTransferTx builds a partial-signed VersionedTransaction for SPL USDC TransferChecked.
+// The fee payer (CDP facilitator) slot is left with a zero signature; only the user signs.
+func (c *BlockRunSolClient) buildSolanaTransferTx(recipient, feePayer, amountStr string) (string, error) {
+	ownerPubkey := c.keypair.PublicKey()
+
+	// Parse recipient and feePayer
+	recipientPK, err := solana.PublicKeyFromBase58(recipient)
+	if err != nil {
+		return "", fmt.Errorf("invalid recipient address: %w", err)
+	}
+	feePayerPK, err := solana.PublicKeyFromBase58(feePayer)
+	if err != nil {
+		return "", fmt.Errorf("invalid feePayer address: %w", err)
+	}
+	mintPK := solana.MustPublicKeyFromBase58(SolanaUSDCMint)
+
+	// Parse amount
+	var amountU64 uint64
+	if _, err := fmt.Sscanf(amountStr, "%d", &amountU64); err != nil {
+		return "", fmt.Errorf("invalid amount %q: %w", amountStr, err)
+	}
+
+	// Derive ATAs
+	sourceATA, _, err := solana.FindAssociatedTokenAddress(ownerPubkey, mintPK)
+	if err != nil {
+		return "", fmt.Errorf("failed to derive source ATA: %w", err)
+	}
+	destATA, _, err := solana.FindAssociatedTokenAddress(recipientPK, mintPK)
+	if err != nil {
+		return "", fmt.Errorf("failed to derive dest ATA: %w", err)
+	}
+
+	// Fetch latest blockhash from Solana mainnet
+	rpcClient := rpc.New(SolanaMainnetRPC)
+	bhResp, err := rpcClient.GetLatestBlockhash(context.Background(), rpc.CommitmentFinalized)
+	if err != nil {
+		return "", fmt.Errorf("failed to fetch blockhash: %w", err)
+	}
+	recentBlockhash := bhResp.Value.Blockhash
+
+	// Build instructions: ComputeBudgetSetLimit, ComputeBudgetSetPrice, TransferChecked
+	setLimitIx, err := computebudget.NewSetComputeUnitLimitInstruction(computeUnitLimit).ValidateAndBuild()
+	if err != nil {
+		return "", fmt.Errorf("failed to build SetComputeUnitLimit: %w", err)
+	}
+	setPriceIx, err := computebudget.NewSetComputeUnitPriceInstruction(computeUnitPrice).ValidateAndBuild()
+	if err != nil {
+		return "", fmt.Errorf("failed to build SetComputeUnitPrice: %w", err)
+	}
+	transferIx, err := token.NewTransferCheckedInstruction(
+		amountU64,
+		6, // USDC decimals
+		sourceATA,
+		mintPK,
+		destATA,
+		ownerPubkey,
+		[]solana.PublicKey{},
+	).ValidateAndBuild()
+	if err != nil {
+		return "", fmt.Errorf("failed to build TransferChecked: %w", err)
+	}
+
+	// Build transaction with feePayer as payer (matches Python SDK)
+	tx, err := solana.NewTransaction(
+		[]solana.Instruction{setLimitIx, setPriceIx, transferIx},
+		recentBlockhash,
+		solana.TransactionPayer(feePayerPK),
+	)
+	if err != nil {
+		return "", fmt.Errorf("failed to build transaction: %w", err)
+	}
+
+	// Partial sign: user signs; fee_payer (CDP) co-signs on server side
+	// The transaction has 2 signers: [feePayer (index 0), owner (index 1)]
+	// We sign only our index (owner).
+	_, err = tx.Sign(func(key solana.PublicKey) *solana.PrivateKey {
+		if key.Equals(ownerPubkey) {
+			return &c.keypair
+		}
+		return nil // feePayer will be signed by BlockRun CDP
+	})
+	if err != nil {
+		return "", fmt.Errorf("failed to sign transaction: %w", err)
+	}
+
+	// Serialize transaction
+	txBytes, err := tx.MarshalBinary()
+	if err != nil {
+		return "", fmt.Errorf("failed to serialize transaction: %w", err)
+	}
+
+	return base64.StdEncoding.EncodeToString(txBytes), nil
+}
+
+// buildUrl returns the full BlockRun Solana endpoint URL.
+func (c *BlockRunSolClient) buildUrl() string {
+	return DefaultBlockRunSolURL + BlockRunChatEndpoint
+}
+
+// buildRequest creates the HTTP request without an Authorization header.
+func (c *BlockRunSolClient) buildRequest(url string, jsonData []byte) (*http.Request, error) {
+	req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
+	if err != nil {
+		return nil, fmt.Errorf("fail to build request: %w", err)
+	}
+	req.Header.Set("Content-Type", "application/json")
+	return req, nil
+}
@@ -206,6 +206,16 @@ func NewAutoTrader(config AutoTraderConfig, st *store.Store, userID string) (*Au
 		mcpClient.SetAPIKey(config.CustomAPIKey, config.CustomAPIURL, config.CustomModelName)
 		logger.Infof("🤖 [%s] Using MiniMax AI", config.Name)

+	case "blockrun-base":
+		mcpClient = mcp.NewBlockRunBaseClient()
+		mcpClient.SetAPIKey(config.CustomAPIKey, "", config.CustomModelName)
+		logger.Infof("🤖 [%s] Using BlockRun (Base Wallet) AI", config.Name)
+
+	case "blockrun-sol":
+		mcpClient = mcp.NewBlockRunSolClient()
+		mcpClient.SetAPIKey(config.CustomAPIKey, "", config.CustomModelName)
+		logger.Infof("🤖 [%s] Using BlockRun (Solana Wallet) AI", config.Name)
+
 	case "qwen":
 		mcpClient = mcp.NewQwenClient()
 		apiKey := config.QwenKey
@@ -0,0 +1,6 @@
+<svg viewBox="0 0 100 100" fill="none" xmlns="http://www.w3.org/2000/svg">
+  <rect x="30" y="20" width="55" height="60" rx="14" stroke="#FFFFFF" stroke-width="8" fill="none"/>
+  <path d="M15 35 L25 35" stroke="#FFFFFF" stroke-width="6" stroke-linecap="round"/>
+  <path d="M10 50 L25 50" stroke="#FFFFFF" stroke-width="6" stroke-linecap="round"/>
+  <path d="M15 65 L25 65" stroke="#FFFFFF" stroke-width="6" stroke-linecap="round"/>
+</svg>
@@ -55,6 +55,16 @@ function getShortName(fullName: string): string {
  return parts.length > 1 ? parts[parts.length - 1] : fullName
 }

+// Top models available through BlockRun wallet providers
+const BLOCKRUN_MODELS = [
+  { id: 'gpt-5.4', name: 'GPT-5.4', desc: 'OpenAI · Flagship' },
+  { id: 'claude-opus-4.6', name: 'Claude Opus 4.6', desc: 'Anthropic · Flagship' },
+  { id: 'gemini-3.1-pro', name: 'Gemini 3.1 Pro', desc: 'Google · Flagship' },
+  { id: 'grok-3', name: 'Grok 3', desc: 'xAI · Flagship' },
+  { id: 'deepseek-chat', name: 'DeepSeek Chat', desc: 'DeepSeek · Flagship' },
+  { id: 'minimax-m2.5', name: 'MiniMax M2.5', desc: 'MiniMax · Flagship' },
+]
+
 // AI Provider configuration - default models and API links
 const AI_PROVIDER_CONFIG: Record<string, {
  defaultModel: string
@@ -101,6 +111,16 @@ const AI_PROVIDER_CONFIG: Record<string, {
    apiUrl: 'https://platform.minimax.io',
    apiName: 'MiniMax',
  },
+  'blockrun-base': {
+    defaultModel: 'gpt-5.4',
+    apiUrl: 'https://blockrun.ai',
+    apiName: 'BlockRun',
+  },
+  'blockrun-sol': {
+    defaultModel: 'gpt-5.4',
+    apiUrl: 'https://sol.blockrun.ai',
+    apiName: 'BlockRun',
+  },
 }

 interface AITradersPageProps {
@@ -1600,7 +1620,7 @@ function ModelConfigModal({
                {language === 'zh' ? '选择 AI 模型提供商' : 'Choose Your AI Provider'}
              </div>
              <div className="grid grid-cols-3 sm:grid-cols-4 gap-3">
-                {availableModels.map((model) => (
+                {availableModels.filter(m => !m.provider?.startsWith('blockrun')).map((model) => (
                  <ModelCard
                    key={model.id}
                    model={model}
@@ -1610,6 +1630,28 @@ function ModelConfigModal({
                  />
                ))}
              </div>
+              {availableModels.some(m => m.provider?.startsWith('blockrun')) && (
+                <>
+                  <div className="flex items-center gap-3 pt-2">
+                    <div className="flex-1 h-px" style={{ background: '#2B3139' }} />
+                    <span className="text-xs font-medium px-2" style={{ color: '#848E9C' }}>
+                      {language === 'zh' ? '通过钱包支付' : 'Via BlockRun Wallet'}
+                    </span>
+                    <div className="flex-1 h-px" style={{ background: '#2B3139' }} />
+                  </div>
+                  <div className="grid grid-cols-2 gap-3">
+                    {availableModels.filter(m => m.provider?.startsWith('blockrun')).map((model) => (
+                      <ModelCard
+                        key={model.id}
+                        model={model}
+                        selected={selectedModelId === model.id}
+                        onClick={() => handleSelectModel(model.id)}
+                        configured={configuredIds.has(model.id)}
+                      />
+                    ))}
+                  </div>
+                </>
+              )}
              <div className="text-xs text-center pt-2" style={{ color: '#848E9C' }}>
                {language === 'zh' ? '带金色标记的模型已配置' : 'Models with gold badge are already configured'}
              </div>
@@ -1644,7 +1686,9 @@ function ModelConfigModal({
                  >
                    <ExternalLink className="w-4 h-4" style={{ color: '#A78BFA' }} />
                    <span className="text-sm font-medium" style={{ color: '#A78BFA' }}>
-                      {language === 'zh' ? '获取 API Key' : 'Get API Key'}
+                      {selectedModel.provider?.startsWith('blockrun')
+                        ? (language === 'zh' ? '开始使用' : 'Get Started')
+                        : (language === 'zh' ? '获取 API Key' : 'Get API Key')}
                    </span>
                  </a>
                )}
@@ -1662,66 +1706,112 @@ function ModelConfigModal({
                </div>
              )}

-              {/* API Key */}
+              {/* API Key / Wallet Private Key */}
              <div className="space-y-2">
                <label className="flex items-center gap-2 text-sm font-semibold" style={{ color: '#EAECEF' }}>
                  <svg className="w-4 h-4" style={{ color: '#A78BFA' }} fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 7a2 2 0 012 2m4 0a6 6 0 01-7.743 5.743L11 17H9v2H7v2H4a1 1 0 01-1-1v-2.586a1 1 0 01.293-.707l5.964-5.964A6 6 0 1121 9z" />
                  </svg>
-                  API Key *
+                  {selectedModel.provider?.startsWith('blockrun')
+                    ? (language === 'zh' ? '钱包私钥 *' : 'Wallet Private Key *')
+                    : 'API Key *'}
                </label>
                <input
                  type="password"
                  value={apiKey}
                  onChange={(e) => setApiKey(e.target.value)}
-                  placeholder={t('enterAPIKey', language)}
+                  placeholder={
+                    selectedModel.provider === 'blockrun-base'
+                      ? '0x... (EVM private key)'
+                      : selectedModel.provider === 'blockrun-sol'
+                      ? 'bs58 encoded key (Solana)'
+                      : t('enterAPIKey', language)
+                  }
                  className="w-full px-4 py-3 rounded-xl"
                  style={{ background: '#0B0E11', border: '1px solid #2B3139', color: '#EAECEF' }}
                  required
                />
              </div>

-              {/* Custom Base URL */}
-              <div className="space-y-2">
-                <label className="flex items-center gap-2 text-sm font-semibold" style={{ color: '#EAECEF' }}>
-                  <svg className="w-4 h-4" style={{ color: '#A78BFA' }} fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M13.828 10.172a4 4 0 00-5.656 0l-4 4a4 4 0 105.656 5.656l1.102-1.101m-.758-4.899a4 4 0 005.656 0l4-4a4 4 0 00-5.656-5.656l-1.1 1.1" />
-                  </svg>
-                  {t('customBaseURL', language)}
-                </label>
-                <input
-                  type="url"
-                  value={baseUrl}
-                  onChange={(e) => setBaseUrl(e.target.value)}
-                  placeholder={t('customBaseURLPlaceholder', language)}
-                  className="w-full px-4 py-3 rounded-xl"
-                  style={{ background: '#0B0E11', border: '1px solid #2B3139', color: '#EAECEF' }}
-                />
-                <div className="text-xs" style={{ color: '#848E9C' }}>
-                  {t('leaveBlankForDefault', language)}
+              {/* Custom Base URL (hidden for BlockRun) */}
+              {!selectedModel.provider?.startsWith('blockrun') && (
+                <div className="space-y-2">
+                  <label className="flex items-center gap-2 text-sm font-semibold" style={{ color: '#EAECEF' }}>
+                    <svg className="w-4 h-4" style={{ color: '#A78BFA' }} fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M13.828 10.172a4 4 0 00-5.656 0l-4 4a4 4 0 105.656 5.656l1.102-1.101m-.758-4.899a4 4 0 005.656 0l4-4a4 4 0 00-5.656-5.656l-1.1 1.1" />
+                    </svg>
+                    {t('customBaseURL', language)}
+                  </label>
+                  <input
+                    type="url"
+                    value={baseUrl}
+                    onChange={(e) => setBaseUrl(e.target.value)}
+                    placeholder={t('customBaseURLPlaceholder', language)}
+                    className="w-full px-4 py-3 rounded-xl"
+                    style={{ background: '#0B0E11', border: '1px solid #2B3139', color: '#EAECEF' }}
+                  />
+                  <div className="text-xs" style={{ color: '#848E9C' }}>
+                    {t('leaveBlankForDefault', language)}
+                  </div>
                </div>
-              </div>
+              )}

-              {/* Custom Model Name */}
-              <div className="space-y-2">
-                <label className="flex items-center gap-2 text-sm font-semibold" style={{ color: '#EAECEF' }}>
-                  <svg className="w-4 h-4" style={{ color: '#A78BFA' }} fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M7 7h.01M7 3h5c.512 0 1.024.195 1.414.586l7 7a2 2 0 010 2.828l-7 7a2 2 0 01-2.828 0l-7-7A1.994 1.994 0 013 12V7a4 4 0 014-4z" />
-                  </svg>
-                  {t('customModelName', language)}
-                </label>
-                <input
-                  type="text"
-                  value={modelName}
-                  onChange={(e) => setModelName(e.target.value)}
-                  placeholder={t('customModelNamePlaceholder', language)}
-                  className="w-full px-4 py-3 rounded-xl"
-                  style={{ background: '#0B0E11', border: '1px solid #2B3139', color: '#EAECEF' }}
-                />
-                <div className="text-xs" style={{ color: '#848E9C' }}>
-                  {t('leaveBlankForDefaultModel', language)}
+              {/* Custom Model Name (hidden for BlockRun) */}
+              {!selectedModel.provider?.startsWith('blockrun') && (
+                <div className="space-y-2">
+                  <label className="flex items-center gap-2 text-sm font-semibold" style={{ color: '#EAECEF' }}>
+                    <svg className="w-4 h-4" style={{ color: '#A78BFA' }} fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M7 7h.01M7 3h5c.512 0 1.024.195 1.414.586l7 7a2 2 0 010 2.828l-7 7a2 2 0 01-2.828 0l-7-7A1.994 1.994 0 013 12V7a4 4 0 014-4z" />
+                    </svg>
+                    {t('customModelName', language)}
+                  </label>
+                  <input
+                    type="text"
+                    value={modelName}
+                    onChange={(e) => setModelName(e.target.value)}
+                    placeholder={t('customModelNamePlaceholder', language)}
+                    className="w-full px-4 py-3 rounded-xl"
+                    style={{ background: '#0B0E11', border: '1px solid #2B3139', color: '#EAECEF' }}
+                  />
+                  <div className="text-xs" style={{ color: '#848E9C' }}>
+                    {t('leaveBlankForDefaultModel', language)}
+                  </div>
                </div>
-              </div>
+              )}
+
+              {/* BlockRun Model Selector */}
+              {selectedModel.provider?.startsWith('blockrun') && (
+                <div className="space-y-2">
+                  <label className="flex items-center gap-2 text-sm font-semibold" style={{ color: '#EAECEF' }}>
+                    <svg className="w-4 h-4" style={{ color: '#A78BFA' }} fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                      <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9.75 17L9 20l-1 1h8l-1-1-.75-3M3 13h18M5 17h14a2 2 0 002-2V5a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z" />
+                    </svg>
+                    {language === 'zh' ? '选择模型' : 'Select Model'}
+                  </label>
+                  <div className="grid grid-cols-2 gap-2">
+                    {BLOCKRUN_MODELS.map((m) => {
+                      const isSelected = (modelName || BLOCKRUN_MODELS[0].id) === m.id
+                      return (
+                        <button
+                          key={m.id}
+                          type="button"
+                          onClick={() => setModelName(m.id)}
+                          className="flex flex-col items-start px-3 py-2 rounded-xl text-left transition-all"
+                          style={{
+                            background: isSelected ? 'rgba(37, 99, 235, 0.2)' : '#0B0E11',
+                            border: isSelected ? '1px solid #2563EB' : '1px solid #2B3139',
+                          }}
+                        >
+                          <span className="text-xs font-semibold" style={{ color: isSelected ? '#60A5FA' : '#EAECEF' }}>
+                            {m.name}
+                          </span>
+                          <span className="text-[10px]" style={{ color: '#848E9C' }}>{m.desc}</span>
+                        </button>
+                      )
+                    })}
+                  </div>
+                </div>
+              )}

              {/* Info Box */}
              <div className="p-4 rounded-xl" style={{ background: 'rgba(139, 92, 246, 0.1)', border: '1px solid rgba(139, 92, 246, 0.2)' }}>
@@ -14,6 +14,8 @@ const MODEL_COLORS: Record<string, string> = {
  grok: '#000000',
  openai: '#10A37F',
  minimax: '#E45735',
+  'blockrun-base': '#2563EB',
+  'blockrun-sol': '#9945FF',
 }

 // 获取AI模型图标的函数
@@ -48,6 +50,10 @@ export const getModelIcon = (modelType: string, props: IconProps = {}) => {
    case 'minimax':
      iconPath = '/icons/minimax.svg'
      break
+    case 'blockrun-base':
+    case 'blockrun-sol':
+      iconPath = '/icons/blockrun.svg'
+      break
    default:
      return null
  }