This is a managed proxy that routes Claude through a single authentication layer to 100+ third-party APIs. Instead of handling OAuth flows yourself, you get pre-authenticated endpoints for Slack, Gmail, Notion, and others under a unified base URL. The real value is in multi-account scenarios where you need Claude to hit the same API with different credentials, switchable via a connection ID header. The docs enforce a sensible protocol: read-only calls first, explicit approval before any POST or DELETE. If you're building agents that need to touch external services without managing auth infrastructure, this handles the plumbing. Just be aware you're adding Maton as a dependency in your auth chain.
npx skills add https://github.com/maton-ai/api-gateway-skill --skill api-gateway