Join the seller waitlist

Our marketplace for x402 APIs and MCP servers opens once our seller terms are final. Join the waitlist now: we check your endpoint straight away and tell you exactly what to fix, then keep checking it every hour, so it's ready on day one. Nothing is listed yet, and you don't accept any terms today. Leave an email if you'd like to hear when listing opens.

• Costs: free to list. Optional extras, never needed to be listed or ranked: Featured $1 per day (a labelled Sponsored slot), Verified badge $1.
• Price limit: we list tools up to $1 per call (most x402 wallets refuse larger single payments by default).
• Checks: a listing needs 3 days of our hourly checks with 95%+ answered. Tools already in the x402 Bazaar have usually been in our checks for days, so they're often ready at once; new endpoints wait 3 days.

What are you listing? x402 API (pay per call in USDC)MCP server (remote, streamable HTTP) Endpoint URL How is it called? (x402 APIs)GETPOST Name What it does (plain English, 20–600 characters) Website (optional) Contact email (optional, never shown publicly; we only use it to tell you when listing opens)

We make one unpaid request to your endpoint now, then check it every hour. You can read the draft seller terms; they are not in force, and joining the waitlist doesn't bind you to them.

Check my endpoint and join the waitlist