Is my x402 endpoint listed? Free directory checker
Paste a paid endpoint URL. This page asks five public x402 catalogs, using each one’s own no-key API, whether they list it: CDP Bazaar, PayAI, x402dash, 402 Index and x402-list. It never pays, signs or registers anything.
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How each catalog adds you
| Catalog | How you get listed |
|---|---|
| CDP Bazaar (Coinbase) | No form. Coinbase’s docs describe the Bazaar as a catalog of services discovered by the CDP Facilitator, so a route appears after a payment for it settles through CDP. Looked up here by payTo address. |
| PayAI catalog | No form. PayAI’s facilitator publishes a public catalog (GET /discovery/resources on its developer page). We could not find PayAI docs on how routes get added; what we observed is that our own endpoint paid through PayAI is listed and our endpoint never paid through it is not. Looked up here by exact resource URL. |
| x402dash | Free self-registration with one unauthenticated POST to https://api.x402dash.com/v1/register; it probes your 402 and lists verified endpoints (our own registration, 7–8 Oct 2026). |
| 402 Index | Free self-registration through its API; new services start as pending review, and verifying your domain approves them faster (the reply we got on 7 Oct 2026). |
| x402-list | Submit at x402-list.com/submit: free from your own domain; a service on a free compute host such as workers.dev or vercel.app pays a one-off $1 USDC on Base to enter human review (per its llms.txt, checked 14 Oct 2026). Data CC BY 4.0. |
Facts checked 2026-10-14. Catalogs change their rules, so read each one’s own page before you rely on it.
Not listed anywhere?
Every catalog above reads your 402 response first. Run the free x402 endpoint checker and fix any failures before you register. Then use the free self-registration routes (x402dash, 402 Index), and expect CDP Bazaar and PayAI to add a route only after a payment for it settles through their facilitator. More in the guides.
Use it from code
curl -s "https://x402-seller-kit.soloearn.workers.dev/api/x402-listings?url=https://api.example.com/v1/data"Optional &payTo=0x…. JSON answer with one result per catalog: listed, host_listed, not_listed, error or skipped, plus the lookup URL used. Limit: 20 checks per minute per IP; answers are cached for 10 minutes.