Run402

What it does

Run402 lets developers monetize any API in minutes using the HTTP 402 payment flow. Instead of building billing, payment gateways, webhooks, and access control from scratch, simply protect an endpoint, set a price, and start charging. Built for AI APIs, developer tools, SaaS backends, and anyone who wants to ship paid APIs faster with a clean, developer-first experience.

Run402 is the HTTP 402 payments layer for APIs. Install one package, wrap any route, and start charging — card & crypto checkout, no billing code required.

Wrap a route, set a price, and start charging. Run402 handles card & crypto checkout, the 402 handshake, billing, and analytics — no payment code required. Add Run402 to any Node.js project with your package manager of choice. No billing logic. No infrastructure. No payment code. Just protect a route and charge. Add run402 to your project. Zero config, works with any Node framework. Wrap any route with protect() and set a price. That’s the entire integration. Unpaid requests get a 402 and a hosted Stripe Checkout. No UI to build. On success the request replays automatically and your endpoint responds. This is exactly what your users experience — drive it manually and replay as many times as…from run402.dev

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