400860 x402 Growth and Safety Catalog

Static MCP discovery card for x402 spend-policy, paid MCP launch guidance, seller checkout repair, and agent-payment safety APIs.

Transaction-complete hotel booking over MCP — 300K+ properties, real hotel confirmation numbers, loyalty points, secure checkout. Hotels are merchant of record. Builders set their own booking fee via Stripe Connect. Built on proven distribution infrastructure.

L402 Lightning paywall and PoW gate for MCP tool calls. Free tier solves a Hashcash challenge; paid tier pays a Lightning invoice via self-hosted LNBits. No accounts, no API keys.

37 MCP servers for agentic commerce — Stripe ACP, x402, AP2, Google UCP, plus 14 Brazilian payment rails. ~480 tools.

Mercado Pago's official MCP server, offering tools to interact with our API, simplifying tasks and product integration.

The PayPal Model Context Protocol server allows you to integrate with PayPal APIs through function calling. This protocol supports various tools to interact with different PayPal services.

A Model Context Protocol (MCP) server for square

Integrate AI tools and agents with Cashfree's Payment Gateway, Payouts, and SecureID APIs.

A read-only MCP server for querying live data from Square using the CData JDBC Driver.

Interact with the Gumroad API to access and manage your products, sales, and creator data.

An MCP server for processing payments using stdio transport, configured via environment variables.