X402 Middleware runs on your own machine — the client starts it, so there is no endpoint to ping.
One-line x402 + Stripe payment middleware for MCP servers. The Stripe for the agent economy.
The linked repository no longer exists on GitHub — it was deleted or made private.
Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.
The payment protocol for people and agents. One MCP server, any payment rail.
x402 payment wrapper for AI Agents and MCP Servers. USDC settlements on Base L2.
Trust and payment layer for the agentic economy on the XRP Ledger.
Xenarch — x402 MCP server for AI agent payments. Non-custodial, USDC on Base L2.
Express.js HTTP 402 payment middleware for AI agent micropayments
Non-custodial x402 payment MCP server for AI agents. Wallets and payments on 17 chains.
Billing proxy for MCP servers. Adds Stripe and x402 crypto payments without writing billing code.
Decentralized agent memory for the Lightning economy. Nostr identity, L402 payments.
Answers built from our own checks of this server.