The directory of tools AI agents
can use — and pay for.
MCP servers and APIs, curated and categorized: what they do, what they cost, and how agents can call them.
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Watch our payment layer respond, live
This calls our actual deployed API right now — the same endpoint an AI agent would call. Today it's in preview mode; the same route ships with real x402 pay-per-call next.
GET /api/premium/signal
Click to make a real request to our server and see the raw response.
Built a tool agents should pay for?
Submit it below — it goes straight into our review queue. We hand-verify every listing before it goes live.