@v402pay/gateway

Server-side gateway middleware for the v402 payment protocol — intent creation, policy enforcement, on-chain verification, and receipt issuance.

Install

npm install @v402pay/gateway

Usage

import { createGatewayContext, v402GatewayFastify } from "@v402pay/gateway";

const ctx = createGatewayContext(process.env);
const fastify = Fastify();
await v402GatewayFastify(ctx, fastify);

fastify.post("/api/tool", async (req, reply) => {
  return reply.send({ result: "Hello from paid tool" });
});

Supports Express, Fastify, and Next.js middleware.

Documentation

• Full docs
• Protocol spec

License

MIT