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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
121 lines
4.7 KiB
Markdown
121 lines
4.7 KiB
Markdown
# BlockRun Solana Wallet Setup Guide
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This guide explains how to use a Solana wallet to pay for AI usage through BlockRun — no API key required.
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**Language:** [English](blockrun-sol-wallet.md) | [中文](blockrun-sol-wallet.zh-CN.md)
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## What is BlockRun?
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[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.
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NOFX integrates BlockRun via the **x402 micropayment protocol** on Solana: each AI inference request automatically pays a small USDC fee directly from your wallet.
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## Prerequisites
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- A Solana wallet with USDC on **Solana mainnet**
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- The wallet private key (base58-encoded, 64 bytes — standard Solana keypair format)
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### Getting USDC on Solana
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1. Buy SOL on any exchange and withdraw to your Solana wallet, then swap to USDC on [Jupiter](https://jup.ag), **or**
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2. Buy USDC directly on an exchange and withdraw to Solana, **or**
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3. Bridge from other chains using [Wormhole](https://wormhole.com)
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> **Tip:** A few dollars of USDC is plenty to start.
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## Step 1: Export Your Solana Private Key
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> ⚠️ **Security Warning:** Use a dedicated wallet for NOFX — not your main holdings wallet.
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**From Phantom Wallet:**
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1. Open Phantom → Settings (gear icon)
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2. Security & Privacy → Export Private Key
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3. Enter your password
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4. Copy the base58 key (looks like: `5J...` — a long string of ~88 characters)
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**From Solflare:**
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1. Settings → Export Private Key
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2. The key is displayed in base58 format
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**From CLI (solana-keygen):**
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```bash
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# View existing keypair
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cat ~/.config/solana/id.json
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# This is a JSON array — convert to base58 using:
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solana-keygen pubkey ~/.config/solana/id.json
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```
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> **Note:** NOFX accepts the **base58-encoded 64-byte keypair** (as exported by Phantom/Solflare). This is the standard format for Solana private keys.
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## Step 2: Fund the Wallet with USDC on Solana
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Send USDC to your Solana wallet:
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- **USDC SPL token mint:** `EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v`
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- **Network:** Solana Mainnet
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- **Recommended starting amount:** $5–$20 USDC
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Check your balance at [solscan.io](https://solscan.io) or in your wallet app.
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## Step 3: Configure in NOFX
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1. Open NOFX at `http://localhost:3000`
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2. Log in and go to **Config** tab
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3. Click **+ Add AI Model**
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4. In Step 0, scroll to **Via BlockRun Wallet** section
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5. Select **BlockRun · Solana Wallet**
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6. In Step 1, configure:
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- **Wallet Private Key:** Your base58-encoded Solana private key
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- **Select Model:** Choose from Claude Opus, GPT-5.4, Gemini 3 Pro, Grok 3, DeepSeek R1, or leave as **Auto** for best available
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7. Click **Save**
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## How Payment Works
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When NOFX sends an AI request:
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1. Request goes to `https://sol.blockrun.ai/api/v1/chat/completions`
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2. Server responds with HTTP `402 Payment Required` + payment details (nonce, recipient, amount)
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3. NOFX signs the payment message `blockrun-payment:{nonce}:{recipient}:{amount}` with your **Ed25519** private key
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4. Payment signature is attached and request is retried
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5. BlockRun verifies the Ed25519 signature on-chain and routes to the AI model
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> **Privacy:** Your private key never leaves your NOFX instance. Only the cryptographic signature is sent.
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## Available Models via BlockRun
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| Model ID | Provider | Use Case |
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|----------|----------|----------|
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| `gpt-5.4` | OpenAI | Flagship (default) |
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| `claude-opus-4.6` | Anthropic | Flagship |
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| `gemini-3.1-pro` | Google | Flagship |
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| `grok-3` | xAI | Flagship |
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| `deepseek-chat` | DeepSeek | Flagship |
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| `minimax-m2.5` | MiniMax | Flagship |
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## Security Best Practices
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- ✅ Use a **dedicated trading wallet** with only your AI budget
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- ✅ Keep only a small USDC balance (top up as needed)
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- ✅ Your private key is AES-256 encrypted at rest in NOFX's database
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- ✅ Ed25519 signatures are one-time — each authorizes only one specific payment
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- ❌ Never use your main SOL holdings wallet as the NOFX trading wallet
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## Troubleshooting
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| Issue | Solution |
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|-------|----------|
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| `unexpected key length` | Ensure you exported the full 64-byte keypair (not just the 32-byte seed) |
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| `failed to decode base58` | Key must be base58 encoded (standard Phantom/Solflare export format) |
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| `payment retry failed` | Ensure you have USDC on **Solana mainnet** (not devnet) |
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| No response from server | Check `sol.blockrun.ai` is reachable from your server |
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| Slow responses | Try selecting a specific model instead of "Auto" |
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## Monitoring Spend
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Check your USDC balance and transaction history at:
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- [Solscan](https://solscan.io) — search your wallet address, filter by USDC token
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- [BlockRun dashboard](https://blockrun.ai) — usage history
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---
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[← Back to Getting Started](README.md)
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