High-performance x402 payment handling in Rust.
Rust is a popular choice for performance-critical payment infrastructure — facilitators, proxies and high-throughput services where verification latency directly costs money. These crates implement the x402 flow for Rust servers and clients, with frameworks like axum and actix.
Here are the Rust x402 and agent-payment crates we track.
Real projects from the directory · stars live from GitHub · sorted by popularity. Showing the top 60 of 73.
An open SDK for agentic payments. Let AI agents make payments, hold funds, and move money across chains with policy enforcement and human approval built in.
x402 payments in Rust: verify, settle, and monitor payments over HTTP 402 flows
Context-aware agentic LLM gateway & router that optimize your agentic workflows with every runs, works with any harnesses, any models, any workflows.
An operating system built for AI agents — talk to your NixOS server instead of SSH-ing in. Typed, audited tool access with atomic rollback on every change. Research-grade; run it on a disposable box, not production.
Alephant is an open-source AI Agent Gateway for routing, tracking, and controlling LLM usage across AI agents, members, and workflows, and for publishing agent capabilities as paid endpoints with x402 and MPP payment rails.
Building blocks for Agentic payments (x402, MPP, AP2) for TypeScript, Rust, Go, Python, Ruby, PHP, Lua, Kotlin and Swift.
Building blocks for Agentic payments (x402, MPP, AP2) for TypeScript, Rust, Go, Python, Ruby, PHP, Lua, Kotlin and Swift.
A fully modular, framework-agnostic, easy-to-extend SDK for building complex X402 payment integrations.
Command-line wallet and HTTP client for the Tempo blockchain, with built-in Machine Payments Protocol support.
A chain-agnostic AI-native payment infrastructure, authz layer for x402
Vault-0: Agent Security, Monitor & x402 Wallet for OpenClaw. Encrypted secret vault, real-time agent monitor, policy enforcement, and native x402 payments — built with Rust + Tauri.
Production-ready Rust server template for building HTTP APIs with x402 payment integration on Solana. Accept USDC payments for API access. Includes Axum, Actix and Rocket templates.
MPP-powered VPS hosting - AI agents pay for compute via Machine Payments Protocol
Autonomous AI colony on the blockchain. Self-replicating agents that clone, evolve their own source code, benchmark their IQ, share neural weights, and pay each other with crypto. All in Rust.
Solana-native AI agent payment infrastructure. AI agents pay for LLM API calls with USDC-SPL on Solana via the x402 protocol.
the onramp for pay-as-you-go decentralized storage on IPFS — SOL, USDFC, USDC, and x402 agent payments
DNA — Payment rails for AI agents. x402 micropayment protocol on Solana. Netting, transfer, stream settlement. Receipt anchoring on-chain.
High-performance, type-safe Rust implementation of the x402 HTTP-native micropayment protocol
TrustChain - decentralized trust for AI agents. Rust core, QUIC P2P, transparent proxy, MCP server, dashboard
Agentic skill for AI agents to seamlessly pay for x402-gated services.
Production-grade ZK compliance for AI agent payments on Solana. Real Circom Groth16 proofs gate spending limits, sanctions, and time rules without leaking payment details. Two rails: HTTP 402 (USDC/USDT/aUSDC) and Stripe MPP, both with on-chain attestation.
Autonomous AI agent that pays for its own LLM inference via BSV micropayments. Every action becomes an on-chain proof. Single binary. No API keys.
Stateless Solana program for validating transaction deadlines. Reference implementation for x402 SVM Extension RFC
Proof of Concept facilitator for accepting XMR/Monero via x402 protocol
Pure Rust implementation of Nginx module for x402 HTTP micropayment protocol.
"Machines must run." — Open-source protocol & trust layer for AI agent commerce. Discover, verify, transact — no middlemen.
🛠 Enable seamless on-chain skill calls with automated x402 micropayments using the Pinion OS SDK and skill server framework.
Agentic finance engine — x402 machine-to-machine payments, secp256k1 wallets, per-task billing, on-chain USDC settlement. Part of the Life Agent OS.
Official builder for the Summoner SDK (multi-repo merge + uv/pip install)
Rust SDK for the Machine Payments Protocol (MPP) on Movement Network
Real-time whale intelligence for Base L2 — Flashblocks monitor + AI agent + x402 pay-per-query. Powered by OpenClaw.
This is a Polkadot Fiat on and off ramp (fully bidirectional), provided by an Off-Chain-Worker (OCW) which connects through a REST-proxy to any bank account supporting the EBICS (Electronic Banking Internet Communication Standard) protocol. The OCW implements a fully pegged stable coin: Incoming bank transaction trigger minting of new stablcoins, and burning stablecoins trigger wire transfers on the banking network.
Trustless x402 facilitator running in a TEE via Oasis ROFL
Solana X402 payment protocol that enables fast, secure, and low-cost on-chain payments.
Payment channels for x402 on Stellar Soroban — zero-latency off-chain payments for AI agents
Build a decentralized marketplace and trust layer for AI agents, enabling seamless transactions and interactions on the Base Sepolia network.
The Verifiable Agentic Protocol. Make any repository agent-ready. Instantly.
Hardened fork of mpp-rs: Rust SDK for the Machine Payments Protocol (MPP) with security fixes and performance optimizations
ERC-8004 Rust SDK for identity, reputation, and validation, with optional x402 payment flows, middleware, and optional Stripe/Coinbase adapters.
x402 HTTP payment protocol implementation for the Polkadot/Substrate ecosystem — enabling pay-per-request API monetization with on-chain settlement.
A complete Rust implementation of the x402 protocol for blockchain-based micropayments over HTTP
Cardano x402 payment facilitator — verify and settle HTTP 402 payments with ADA. Live at cardano402.com
A high performance, multi chain payment gateway built with Rust and Axum, implementing x402 to monetize HTTP APIs using USDC across EVM and Solana networks, with integrated Oyster CVM TEE signature verification for secure, enclave backed request verification.
Autonomous Sovereign Storage Protocol powered by Arbitrum Stylus (Rust) and Irys L1 Datachain. Features native Passkey authentication (secp256r1), x402 Agentic Commerce for self-funding permanence, and Wasm-speed metadata indexing
🚀 Develop and monetize APIs using the complete X402 payment protocol for Solana, designed for easy integration and streamlined transactions.
Autonomous Machine Payments: Persistent payment channels for AI agents on Solana
We currently track 73 Rust crates in the directory, drawn from open-source repositories building on x402 and agent payments. The list above is sorted by GitHub stars and updates as new projects are submitted and crawled.
x402 is an open standard for paying for an HTTP resource: a server replies with HTTP 402 and payment terms, the client pays (usually USDC), and the request is fulfilled. The Rust crates above implement or build on this flow.
Submit it from the Submit page. We crawl the repository, classify it, and it appears in the relevant category pages — including this one if it matches.