x402 Skill

HTTP-native payment protocol skill for Clawdbot agents.

What is x402?

x402 is an open standard by Coinbase for pay-per-request APIs. It uses HTTP status code 402 (Payment Required) to enable seamless crypto payments for web services.

When to Use

• Building paid APIs or monetized endpoints
• Adding payment requirements to existing services
• Creating AI agents that can pay for API access
• Integrating crypto payments into web applications

Quick Example

Server (add paywall to endpoint):

app.use(paymentMiddleware({
  "GET /data": {
    accepts: { scheme: "exact", price: "$0.001", network: "eip155:8453", payTo: address },
  },
}, resourceServer));

Client (auto-pay for access):

const fetchWithPayment = wrapFetchWithPayment(fetch, x402Client);
const response = await fetchWithPayment("https://api.example.com/data");

See Also

• SKILL.md for full documentation
• x402 Docs
• GitHub

Author

Created by Ember 🐉