What is x402?
x402 is a HTTP-native payments protocol, built on crypto rails. It allows client software (like agents or backends) to pay for API calls and services even at sub-cent precision.
Why x402rs?
x402rs delivers a fully open and auditable implementation of the x402 protocol, without compromising on performance. It includes:
- A high-performance facilitator, including a hosted instance at facilitator.x402rs
- Middleware for API providers
- Additional components to help you build and extend
Designed for developers who need trustless infrastructure they can inspect, self-host, and adapt freely, x402rs puts you in control.
Already used in production, it’s trusted by ecosystem builders who value transparency, autonomy, and freedom from permissioned services.
Documentation
- x402-facilitator crate
- x402-axum crate
- Source code on GitHub
Status
🚧 Early but working. x402rs is deployed, used in the wild, and welcoming contributors.