fuego

Local Solana agent wallet with local infra for transfers (SOL, USDC, USDT), Jupiter swaps, and x402 purch.

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Install skill "fuego" with this command: npx skills add willmcdeezy/fuego

Fuego SKILL

Local Solana agent wallet with local infra for transfers (SOL, USDC, USDT), Jupiter swaps, and x402 purch.

Quick Start

1. Install fuego-cli

npm install -g fuego-cli

2. Create Wallet

fuego create

# Output:
# Address: DmFyLRiJtc4Bz75hjAqPaEJpDfRe4GEnRLPwc3EgeUZF
# Wallet config: ~/.fuego/wallet-config.json
# Backup: ~/.config/solana/fuego-backup.json

3. Install Fuego Project

Prerequisites: Rust 1.85+ and Cargo are required to build the server.

# For OpenClaw agents (auto-detects ~/.openclaw/workspace)
fuego install

# For manual installs (specify path)
fuego install --path ~/projects/fuego

4. Configure Jupiter API Key (Optional - for Swaps)

If you want to do token swaps via Jupiter, you need an API key:

  1. Sign up at https://portal.jup.ag
  2. Create a new API key (free tier available)
  3. Add to your Fuego config at ~/.fuego/config.json:
{
  "rpcUrl": "https://api.mainnet-beta.solana.com",
  "network": "mainnet-beta",
  "jupiterKey": "your-jupiter-api-key-here"
}

Without this key, swaps will not work. Balance checks and transfers work without it.

5. Start Server

fuego serve

# Output:
# Fuego server running on http://127.0.0.1:8080

6. Show Address to Human

fuego address

# Output:
# Your Fuego Address
# Name: default
# Public Key: DmFy...eUZF

Share this address so humans can fund the wallet. They can send SOL from any Solana wallet (Phantom, Solflare, etc.).

7. Fund the Wallet

Option A: MoonPay (for fiat → crypto)

Option B: Manual transfer

  • Human copies address from above
  • Sends SOL from their wallet to your Fuego address
  • SOL needed for transaction fees (0.001 SOL per tx)

Send Transactions

Use the CLI - this is the recommended approach:

fuego send <recipient> <amount> --token USDC --yes

This single command:

  • Builds transaction with fresh blockhash
  • Signs locally (zero network key exposure)
  • Submits to chain with proper error handling
  • Returns signature + explorer link
  • Supports address book contacts
  • Works with SOL, USDC, USDT via --token flag

Example:

fuego send GvCoHGGBR97Yphzc6SrRycZyS31oUYBM8m9hLRtJT7r5 0.25 --token USDC --yes

Token Swaps via Jupiter

Step 1: Get a Quote First

Always show the user the expected rate before executing:

fuego quote --input BONK --output USDC --amount 100000

Output shows:

  • Input amount (with token decimals handled automatically)
  • Expected output amount
  • Price impact
  • Route details

Step 2: Execute the Swap

After user confirms the quote:

fuego swap --input BONK --output USDC --amount 100000 --slippage 1.0

Parameters:

  • --input - Input token symbol (SOL, USDC, BONK, etc.) or mint address
  • --output - Output token symbol or mint address
  • --amount - Amount in token units (e.g., 100000 for 100000 BONK)
  • --slippage - Slippage tolerance in percent (default: 0.5%)

The swap script automatically:

  • Fetches correct token decimals from on-chain
  • Uses BigInt for precision (no floating point errors)
  • Throws error if decimals cannot be determined (prevents incorrect amounts)

Prerequisites:

  • Jupiter API key must be configured in ~/.fuego/config.json
  • See Step 4 in Quick Start for setup instructions

Agent-Ready Architecture

Agent/Script
       ↓ POST /build-transfer-sol
Fuego Server (localhost:8080)
  • Builds unsigned transaction with fresh blockhash
  • Returns base64-encoded transaction + memo
       ↓ Unsigned Transaction
Agent/Script
  • Loads ~/.fuego/wallet.json (simple JSON, no password!)
  • Signs transaction locally
       ↓ Signed Transaction
Fuego Server (localhost:8080)
  • POST /submit-transaction
  • Broadcasts to Solana mainnet
       ↓ On-chain
Solana Network

Security Model:

  • Private keys never leave your machine (client-side signing for all transfers)
  • File permissions provide real security (chmod 600)
  • No network key exposure (localhost-only server)
  • Standard Solana format (compatible with CLI tools)

One Exception - x402 Payments: The /x402-purch endpoint handles the complete payment flow internally (including signing) because x402 requires server-side proof-of-payment generation. This is a deliberate security trade-off: the server temporarily accesses the private key only to sign the specific x402 payment transaction, then immediately clears it from memory. This enables seamless agent purchasing while maintaining the local-first architecture for all other operations.

API Reference

GET /wallet-address

Get the local wallet address dynamically.

curl http://127.0.0.1:8080/wallet-address

Response:

{
  "success": true,
  "data": {
    "address": "DmFyLRiJtc4Bz75hjAqPaEJpDfRe4GEnRLPwc3EgeUZF",
    "network": "mainnet-beta",
    "source": "wallet"
  }
}

POST /balance - Check SOL Balance

curl -X POST http://127.0.0.1:8080/balance \
  -H "Content-Type: application/json" \
  -d '{"network": "mainnet-beta", "address": "YOUR_ADDRESS"}'

Response:

{
  "success": true,
  "data": {
    "sol": 1.234567890,
    "lamports": 1234567890,
    "network": "mainnet-beta"
  }
}

POST /tokens - Check All Token Balances

curl -X POST http://127.0.0.1:8080/tokens \
  -H "Content-Type: application/json" \
  -d '{"network": "mainnet-beta", "address": "YOUR_ADDRESS"}'

Returns SOL + all SPL token balances (USDC, USDT, BONK, etc.)

POST /build-transfer-sol - Build SOL Transfer

curl -X POST http://127.0.0.1:8080/build-transfer-sol \
  -H "Content-Type: application/json" \
  -d '{
    "network": "mainnet-beta",
    "from_address": "YOUR_ADDRESS",
    "to_address": "RECIPIENT_ADDRESS",
    "amount": "0.001",
    "yid": "agent-transfer-123"
  }'

Response:

{
  "success": true,
  "data": {
    "transaction": "AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAAEDAb...",
    "blockhash": "J7rBdM33dHKtJwjp...AbCdEfGhIjKl",
    "memo": "fuego|SOL|f:YOUR_ADDRESS|t:RECIPIENT|a:1000000|yid:agent-transfer-123|n:",
    "network": "mainnet-beta"
  }
}

POST /build-transfer-usdc - Build USDC Transfer

curl -X POST http://127.0.0.1:8080/build-transfer-usdc \
  -H "Content-Type: application/json" \
  -d '{
    "network": "mainnet-beta",
    "from_address": "YOUR_ADDRESS",
    "to_address": "RECIPIENT_ADDRESS",
    "amount": "10.50",
    "yid": "agent-usdc-456"
  }'

POST /build-transfer-usdt - Build USDT Transfer

curl -X POST http://127.0.0.1:8080/build-transfer-usdt \
  -H "Content-Type: application/json" \
  -d '{
    "network": "mainnet-beta",
    "from_address": "YOUR_ADDRESS",
    "to_address": "RECIPIENT_ADDRESS",
    "amount": "25.75",
    "yid": "agent-usdt-789"
  }'

POST /submit-transaction - Broadcast Signed Transaction

curl -X POST http://127.0.0.1:8080/submit-transaction \
  -H "Content-Type: application/json" \
  -d '{
    "network": "mainnet-beta",
    "transaction": "BASE64_SIGNED_TRANSACTION"
  }'

Response:

{
  "success": true,
  "data": {
    "signature": "5J7XzY...9KpQrS",
    "explorer_link": "https://explorer.solana.com/tx/5J7XzY...9KpQrS?cluster=mainnet-beta"
  }
}

Agent Integration Patterns

For Agents Writing Code (Node.js, etc.)

Just call the CLI via subprocess. That's it.

The CLI handles everything: building, signing, submitting, error handling. Don't wrap it in a class — just use it directly.

Node.js/TypeScript:

import { execSync } from 'child_process';

// Send payment
const result = execSync(
  'fuego send GvCo... 0.25 --token USDC --yes',
  { encoding: 'utf-8' }
);
console.log(result);

Alternative: Raw API Integration (Not Recommended)

If you absolutely must use raw API calls instead of the CLI, use the endpoints documented below. But the CLI is strongly preferred.

Complete API Reference

GET /

Root endpoint - returns server status.

curl http://127.0.0.1:8080/

Response:

Fuego Server

GET /health

Health check endpoint.

curl http://127.0.0.1:8080/health

Response:

{
  "status": "healthy",
  "service": "fuego-server",
  "version": "0.1.0"
}

GET /network

Get the default network configuration.

curl http://127.0.0.1:8080/network

Response:

{
  "network": "mainnet-beta"
}

GET /wallet-address

Get the local wallet address dynamically.

curl http://127.0.0.1:8080/wallet-address

Response:

{
  "success": true,
  "data": {
    "address": "DmFyLRiJtc4Bz75hjAqPaEJpDfRe4GEnRLPwc3EgeUZF",
    "network": "mainnet-beta",
    "source": "wallet"
  }
}

POST /latest-hash

Get the latest blockhash for transaction building.

curl -X POST http://127.0.0.1:8080/latest-hash \
  -H "Content-Type: application/json" \
  -d '{"network": "mainnet-beta"}'

Response:

{
  "success": true,
  "data": {
    "blockhash": "J7rBdM33dHKtJwjp...",
    "network": "mainnet-beta"
  }
}

POST /sol-balance - Check SOL Balance

curl -X POST http://127.0.0.1:8080/sol-balance \
  -H "Content-Type: application/json" \
  -d '{"network": "mainnet-beta", "address": "YOUR_ADDRESS"}'

Response:

{
  "success": true,
  "data": {
    "address": "YOUR_ADDRESS",
    "lamports": 105113976,
    "sol": 0.105113976,
    "network": "mainnet-beta"
  }
}

POST /usdc-balance - Check USDC Balance

curl -X POST http://127.0.0.1:8080/usdc-balance \
  -H "Content-Type: application/json" \
  -d '{"network": "mainnet-beta", "address": "YOUR_ADDRESS"}'

Response:

{
  "success": true,
  "data": {
    "usdc": 150.250000,
    "raw_amount": "150250000",
    "network": "mainnet-beta"
  }
}

POST /usdt-balance - Check USDT Balance

curl -X POST http://127.0.0.1:8080/usdt-balance \
  -H "Content-Type: application/json" \
  -d '{"network": "mainnet-beta", "address": "YOUR_ADDRESS"}'

Response:

{
  "success": true,
  "data": {
    "usdt": 75.500000,
    "raw_amount": "75500000",
    "network": "mainnet-beta"
  }
}

POST /tokens - Check All Token Balances

curl -X POST http://127.0.0.1:8080/tokens \
  -H "Content-Type: application/json" \
  -d '{"network": "mainnet-beta", "address": "YOUR_ADDRESS"}'

Returns SOL + all SPL token balances (USDC, USDT, BONK, etc.)

Response:

{
  "success": true,
  "data": {
    "wallet": "DmFyLRiJtc4Bz75hjAqPaEJpDfRe4GEnRLPwc3EgeUZF",
    "network": "mainnet",
    "sol_balance": 0.105113976,
    "sol_lamports": 105113976,
    "token_count": 2,
    "tokens": [
      {
        "symbol": "USDC",
        "ui_amount": 28.847897,
        "decimals": 6,
        "mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
      }
    ]
  }
}

POST /all-transactions - Get Transaction History

curl -X POST http://127.0.0.1:8080/all-transactions \
  -H "Content-Type: application/json" \
  -d '{"network": "mainnet-beta", "address": "YOUR_ADDRESS", "limit": 20}'

Returns all wallet transactions. Fuego transactions (those with fuego| in the memo) are styled with rich details in the dashboard.

POST /build-transfer-sol - Build SOL Transfer

curl -X POST http://127.0.0.1:8080/build-transfer-sol \
  -H "Content-Type: application/json" \
  -d '{
    "network": "mainnet-beta",
    "from_address": "YOUR_ADDRESS",
    "to_address": "RECIPIENT_ADDRESS",
    "amount": "0.001",
    "yid": "agent-transfer-123"
  }'

Response:

{
  "success": true,
  "data": {
    "transaction": "AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAAEDAb...",
    "blockhash": "J7rBdM33dHKtJwjp...AbCdEfGhIjKl",
    "memo": "fuego|SOL|f:YOUR_ADDRESS|t:RECIPIENT|a:1000000|yid:agent-transfer-123|n:",
    "network": "mainnet-beta"
  }
}

POST /build-transfer-usdc - Build USDC Transfer

curl -X POST http://127.0.0.1:8080/build-transfer-usdc \
  -H "Content-Type: application/json" \
  -d '{
    "network": "mainnet-beta",
    "from_address": "YOUR_ADDRESS",
    "to_address": "RECIPIENT_ADDRESS",
    "amount": "10.50",
    "yid": "agent-usdc-456"
  }'

POST /build-transfer-usdt - Build USDT Transfer

curl -X POST http://127.0.0.1:8080/build-transfer-usdt \
  -H "Content-Type: application/json" \
  -d '{
    "network": "mainnet-beta",
    "from_address": "YOUR_ADDRESS",
    "to_address": "RECIPIENT_ADDRESS",
    "amount": "25.75",
    "yid": "agent-usdt-789"
  }'

POST /submit-transaction - Broadcast Signed Transaction

curl -X POST http://127.0.0.1:8080/submit-transaction \
  -H "Content-Type: application/json" \
  -d '{
    "network": "mainnet-beta",
    "transaction": "BASE64_SIGNED_TRANSACTION"
  }'

Response:

{
  "success": true,
  "data": {
    "signature": "5J7XzY...9KpQrS",
    "explorer_link": "https://explorer.solana.com/tx/5J7XzY...9KpQrS?cluster=mainnet-beta"
  }
}

POST /submit-versioned-transaction - Broadcast Versioned Transaction

curl -X POST http://127.0.0.1:8080/submit-versioned-transaction \
  -H "Content-Type: application/json" \
  -d '{
    "network": "mainnet-beta",
    "transaction": "BASE64_VERSIONED_TRANSACTION"
  }'

POST /x402-purch - x402 Payment (Server-Side Signing)

Complete x402 payment flow including server-side signing. Used for Purch.xyz integrations.

curl -X POST http://127.0.0.1:8080/x402-purch \
  -H "Content-Type: application/json" \
  -d '{
    "network": "mainnet-beta",
    "product_url": "https://amazon.com/dp/B071G6PFDR",
    "email": "user@example.com",
    "shipping_name": "John Doe",
    "shipping_address_line1": "123 Main St",
    "shipping_city": "Austin",
    "shipping_state": "TX",
    "shipping_postal_code": "78701",
    "shipping_country": "US"
  }'

Security Best Practices

What Makes Fuego Secure

  1. File Permissions = Real Security

    # Wallet files are chmod 600 (user read/write only)
ls -la ~/.fuego/wallet.json
# -rw------- 1 user user 658 Feb 18 15:01 wallet.json

  2. Client-Side Signing (with one exception)

    • Private keys never sent over network (for transfers, swaps, etc.)
    • Signing happens locally in CLI/scripts
    • Server only sees signed transactions (public data)
    • Exception: x402 payments require server-side signing for proof-of-payment generation. Key is loaded only for that specific transaction, then cleared from memory.

  3. Localhost-Only Server

    • Server binds to 127.0.0.1 (local only)
    • No external network exposure
    • No firewall configuration needed

  4. Standard Format Compatibility

    # Compatible with Solana CLI tools
solana-keygen pubkey ~/.fuego/wallet.json  # Works
solana balance ~/.fuego/wallet.json        # Works

Agent Security Checklist

  • Keep ~/.fuego/wallet.json secure (it's your private key!)
  • Don't commit wallet files to version control
  • Only run server on localhost (default behavior)
  • Regularly backup ~/.config/solana/fuego-backup.json
  • Verify transactions on Solana Explorer
  • Monitor wallet balance regularly
  • Use strong system-level user isolation

Troubleshooting

Common Issues

"Wallet not initialized" error

# Solution: Create wallet with fuego-cli
fuego create

"Server not running" error

# Solution: Start server
fuego serve

"Connection refused" error

# Check if server is running
curl http://127.0.0.1:8080/health

# If not running, start it
fuego serve

"Fuego server not found" error

# Solution: Install the fuego project
fuego install

"Transaction simulation failed" error

# Usual cause: Insufficient balance
# Check all token balances first
curl -X POST http://127.0.0.1:8080/tokens \
  -H "Content-Type: application/json" \
  -d '{"network": "mainnet-beta", "address": "YOUR_ADDRESS"}'

"Invalid signature" error

# Wallet file might be corrupted
# Restore from backup
cp ~/.config/solana/fuego-backup.json ~/.fuego/wallet.json

Version mismatch / unexpected behavior

# Ensure all components are up to date
fuego update

# This updates both fuego-cli and the fuego project
# Restart server after updating: fuego serve

Supported Tokens & Networks

Transfer Tokens (fuego send)

These tokens are supported by fuego send:

TokenMint AddressDecimalsStatus
SOLNative9Live
USDCEPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v6Live
USDTEs9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenEqw6Live

Swap Tokens (fuego swap / Jupiter)

fuego swap supports any token tradable on Jupiter, including:

  • SOL, USDC, USDT (above)
  • BONK, JUP, PYTH, RAY, ORCA
  • Any SPL token with liquidity on Jupiter

See https://jup.ag for full token list.

Network Support

  • mainnet-beta - Production Solana network
  • devnet - Development/testing network
  • testnet - Solana testnet (limited use)

Ready to build autonomous Solana agents? Start with Fuego.

Source Transparency

This detail page is rendered from real SKILL.md content. Trust labels are metadata-based hints, not a safety guarantee.

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