A Rust-based implementation of the x402 protocol

The x402 protocol is a proposed standard for making blockchain payments directly through HTTP using native 402 Payment Required status code.

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A Rust-based implementation of the x402 protocol.

This repository provides:

x402-rs (current crate):
- Core protocol types, facilitator traits, and logic for on-chain payment verification and settlement
- Facilitator binary - production-grade HTTP server to verify and settle x402 payments
x402-axum - Axum middleware for accepting x402 payments,
x402-reqwest - Wrapper for reqwest for transparent x402 payments,
x402-axum-example - an example of x402-axum usage.
x402-reqwest-ex...

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