Payments and financing MCP servers

Card payments, invoices and financing. 3 servers.

• PayPal MCP Server Official
  By PayPal. Down, checked Oct 4, 2026.
  Invoices, orders, transactions, disputes, subscriptions
  Source
• Square MCP Server (beta) Official
  By Square. Live (sign-in required), checked Oct 4, 2026.
  Full Square API: customers, orders, catalog items, payments, invoices
  Source
• Stripe MCP Official
  By Stripe. Live (sign-in required), checked Oct 4, 2026.
  stripe_api_search, stripe_api_details, stripe_api_read, stripe_api_write, get_stripe_account_info, stripe_analytics, search_stripe_documentation, stripe_implementation_planner
  Source