r402

x402 Payment Protocol SDK for Rust — umbrella crate.

This crate re-exports the workspace under feature flags. Prefer depending on individual crates when you need a minimal dependency graph.

Included crates

Forwarding features: client, server, facilitator, telemetry, cache, ext-bazaar, ext-payment-id, ext-eip2612, ext-erc20-approval, all-extensions, full.

Quick Start

[dependencies]
# Minimal EVM HTTP server/client
r402 = { version = "0.17", features = ["evm", "http", "client", "server", "facilitator"] }

# Multi-chain
r402 = { version = "0.17", features = [
  "evm", "solana", "tron", "casper", "near", "xrpl",
  "hedera", "algorand", "aptos", "keeta", "tvm", "stellar",
  "http", "client", "server", "facilitator",
] }

// After enabling the matching features:
use r402::evm;    // r402-evm
use r402::solana; // r402-solana
use r402::tron;   // r402-tron
use r402::casper; // r402-casper
use r402::near;   // r402-near
use r402::xrpl;   // r402-xrpl
use r402::hedera; // r402-hedera
use r402::algorand; // r402-algorand
use r402::aptos;    // r402-aptos
use r402::keeta;  // r402-keeta
use r402::tvm;    // r402-tvm
use r402::stellar; // r402-stellar
use r402::http;   // r402-http
use r402::mcp;    // r402-mcp (needs feature "mcp")

Features

License

Licensed under either of MIT or Apache-2.0, at your option.