Run your own payment gateway as a Docker image, or use ours online to verify and settle x402 transactions instantly.
x402-facilitator is an early-stage Java project in the AI payments / x402 ecosystem, focused on cryptocurrency, java, spring, sprint-boot. It currently has 6 GitHub stars and 1 forks, and sits alongside related tools like x402-spring-boot-starter, x402-examples, x402-java-client, x402-commons, sample-agentcore-cloudfront-x402-payments, x402-deploy.
Website • Quick start • Documentation • Examples • Twitter
The Mogami Facilitator Server acts as your payment gateway for x402. You can run it as a Docker image within your own infrastructure, or use our hosted facilitator online. It verifies, authorizes, and settles x402 transactions in real time, connecting your services to the blockchain securely while keeping private keys safe. x402 V1 and V2 are supported.
Protect your APIs with pay-per-call logic using a single Spring Boot annotation.
Learn x402 through real-world demos of paywalled endpoints and instant payment flows.
Use x402 payments into your apps: fetch requirements, sign, and send transactions.
Shared foundation for building x402-compatible systems
AWS payment demo of x402 using Bedrock AgentCore, Strands SDK, and CloudFront.
Turn any API or MCP server into a paid service with x402
Production-ready x402 facilitator server.
Rust SDK for the x402 payment protocol.
Accept payments from AI agents. Open-source. Your data, your domain, your rules. Free forever.
A production-ready payment settlement service for the x402 protocol. Built with Elysia and Node.js, it verifies cryptographic payment signatures and settles transactions on-chain for EVM, SVM (Solana), and Starknet networks.
Golang implementation of an x402 payment facilitator
x402 payment facilitator — verifies and settles EIP-3009 USDC micropayments on Base, Arbitrum, and Ethereum.