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Plainchain x402scan Register
x402
Plainchain x402scan Register is a paid API for AI agents from plainchain.appin60.com, paid per call via x402, $0.009942/call, status unknown (last checked 2026-10-14).
Registers your x402-enabled API origin with x402scan so its endpoints are discoverable and indexed
Price / call$0.009942
Success—
StatusUnknown
How this service works
Gas, balances, token data, address type, approvals, transaction decoding, x402 receipt verification and verifiable randomness on Base, Arbitrum, Ethereum and Optimism. No API key: pay $0.001-$0.01 per call in USDC on Base via x402.
Output
Returns a JSON object with ok:true on success, the registered origin URL, and an x402scan summary including total endpoints found, how many were successfully registered, how many failed or were skipped, the data source (e.g. openapi), and a link to the server's public x402scan page.
Example use cases
Onboard new x402 API to directory
“I just launched my x402 pay-per-call API at https://api.myblockchaintools.com — can you register it with x402scan so agents can find and use it?”
Verify registration after deployment
“I deployed my x402 API at https://defidata.example.com — register it with x402scan and tell me how many endpoints got indexed successfully.”
Re-register updated API endpoints
“I've updated my x402 API endpoints at https://chaininfo.myapp.com — please re-register them on x402scan so the directory reflects the latest version.”
Technical details
Endpoint
POSThttps://plainchain.appin60.com/v1/x402scan/register?utm_source=zero.xyzWhen to prefer
Use this endpoint when you have built or deployed an x402-compatible API and want it indexed and discoverable by AI agents browsing the x402scan directory. It is specifically for registering API origins — not for querying blockchain data or verifying individual receipts.
Side effects
- Invalid or non-HTTPS origin URL returns an error
- Origin not reachable or not serving x402 responses causes registration failure
- No OpenAPI spec found at origin results in zero endpoints registered
- Payment failure in USDC on Base blocks the call
- Malformed request body returns 400 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| origin | string | https origin of your x402 API, e.g. https://api.example.com |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"origin": "https://plainchain.appin60.com",
"x402scan": {
"total": 10,
"failed": 0,
"source": "openapi",
"skipped": 0,
"success": true,
"registered": 10
},
"serverPage": "https://www.x402scan.com/server/..."
}
}Tags
x402
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