For sellers
List your x402 API or MCP server. Free. Buyers pay you directly.
AI agents ask Aayat AI which tool to use for a job. Be one of the answers.
Free to list.
No fee, no commission, no exclusivity. Leave any time.
Paid directly.
Buyers pay the payTo in your own 402 quote, or however your MCP server charges. We never touch the money.
Live reliability.
We check your endpoint, unpaid, several times a day and show uptime and response time on your page.
How it works
- Paste your endpoint and a plain-English description.
- We check it straight away with one unpaid request, and tell you exactly what to fix if anything is wrong.
- We keep checking it, unpaid, for 3 days (usually instant if it's already in our x402 directory with a good record). Until 29 October a person then approves it with one click; after that, listings that pass go live automatically.
- You get a seller page, and your tool becomes a candidate in our router, the /directory and the marketplace.
What we check
Automatically, the same for everyone. Anything our checks aren't sure about goes to a person, never to an automatic "no".
- It works: x402 answers HTTP 402 with a readable quote and a payTo; MCP answers initialize over streamable HTTP (a key or sign-in wall is fine).
- It's honest: the description matches what it does, and the price in the quote is the price you charge.
- It's yours: you run the endpoint and control the payTo wallet.
- It's allowed: no data about private individuals, nothing illegal, no adult content or gambling; crawlers respect robots.txt.
- You look after your customers: support, refunds and taxes for your sales are yours.
Optional extras
Never needed to be listed or ranked. Sponsored slots are labelled and never change the ranking.
| Extra | Price | What it does |
|---|---|---|
| Featured | $1 per day | A slot marked Sponsored beside matching router answers. It never changes the ranking itself. |
| Verified badge | $1, once | A person checks your endpoint works as described, prices are clear and the payTo is yours. |
Already in the Coinbase x402 Bazaar?
You're probably already in our directory: we pick up every Bazaar listing automatically. Listing on the marketplace adds a seller page in your own words.