payments-gateway

Brand-neutral Fastify payments engine: x402 USDC paywalls (auto-selects the Coinbase CDP facilitator when keys are present, Bazaar discovery on every route) **plus** Monero/Zcash view-key payment watching with webhooks and prepaid credit meters topped up via x402 or native XMR/ZEC. Ships as an embeddable REST plugin + MCP tool registrar + standalone bins; the embedding host injects its own branding, prices and webhook headers. MIT, production-extracted from seneschal.space. Built on [x402-server-kit](https://github.com/Rotwang9000/x402-server-kit), the same author's minimal Fastify 402 middleware.

How to call

curl -X POST https://github.com/Rotwang9000/payments-gateway