Provider-agnostic Python payment middleware for MCP servers. Adds @price decorators for pay-per-request billing; supports x402 (USDC on Base and Solana) plus Stripe, PayPal, Coinbase Commerce and others, with Mode.AUTO selecting a provider by client capability.
PayMCP is plumbing you wire into your own server. Follow the docs to add x402 pricing to your endpoint, then list the endpoint here so agents can discover it.