X402 Express runs on your own machine — the client starts it, so there is no endpoint to ping.
Express.js HTTP 402 payment middleware for AI agent micropayments
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.
One-line x402 + Stripe payment middleware for MCP servers. The Stripe for the agent economy.
Pay-per-call USDA nutrition for AI agents (x402 micropayments in USDC on Base).
Non-custodial HTTP-402 crypto payments for AI agents. 77-tool MCP server.
Non-custodial HTTP-402 crypto payments for AI agents. 86-tool MCP server.
Non-custodial HTTP-402 crypto payments for AI agents. 79-tool MCP server.
Pay for HTTP APIs and charge for your own: x402 micropayments in USDC on Base.
Cross-chain swaps between Solana and Base for AI agents paid for via via x402 micropayments.
x402 micropayments for AI agents — credits-based, no wallets, no blockchain.
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