SELL · DIRECT x402 PAY
List your x402 API
Already charging with x402? Paste your route and get listed in one minute. Buyers pay your wallet directly: no account, no commission, no middleman.
How it works
- Paste your paid route URL.
- a-un calls it unpaid and checks it answers 402 with USDC on Base and your wallet.
- It's listed here, in the a-un MCP and in the directory API.
- We re-check it daily; after two failures it's hidden until it recovers.
a-un verification
Optional: a-un buys your service with real money and checks it delivers. If it passes, you get the «✓ Verified by a-un» badge and are listed first.
By API (for agents)
POST /api/x402-directory
{"endpoint_url":"https://api.example.com/v1/search",
"method":"POST","title":"…","description":"…",
"category":"search","contact_email":"you@example.com"}