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PitCrew x402 Preflight Checker
x402
PitCrew x402 Preflight Checker is a paid API for AI agents from pitcrew-api.appin60.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-18).
Probes a given URL to determine whether it is a payable x402 endpoint, returning price offers, verdict, and any problems or warnings.
Price / call$0.005
Success—
StatusUnknown
How this service works
Check any x402 paid endpoint before paying it: does it return a valid 402 challenge, which networks/tokens/prices it accepts (decoded to USD), whether amounts are valid atomic units, payTo sanity, testnet-only offers, missing Bazaar input schema, redirects and latency. Returns a verdict (payable / payable with warnings / broken / unreachable) and the exact problems. Useful for agents choosing between paid APIs and for sellers debugging why x402scan or the CDP Bazaar skipped their route.
Output
A JSON object containing a 'verdict' field ('payable' or otherwise), an 'offers' array listing accepted tokens, networks, and USD price per call, a 'problems' array describing any configuration errors, and a 'warnings' array for non-fatal issues.
Example use cases
Validate x402 endpoint before paying
“I want to call https://data-api.example.com/reports but I'm not sure if it's properly set up as an x402 endpoint — can you run a preflight check on it and tell me the price and any issues?”
Debugging a failed x402 payment
“My agent tried to pay https://api.someservice.io/generate and it failed — can you preflight that URL to see if there's a problem with the endpoint or its payment config?”
Discover pricing before automating calls
“I'm building a workflow that calls https://inference.myapp.xyz/predict repeatedly — can you check what token and network it accepts and how much it charges per call so I can budget correctly?”
Technical details
Endpoint
GEThttps://pitcrew-api.appin60.com/x402/preflight?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to inspect an x402-enabled URL before attempting to pay it — especially to confirm it is correctly configured, discover its pricing and accepted tokens/networks, or diagnose a prior payment failure. Prefer this over a raw HTTP probe when you need structured x402-aware analysis rather than a generic HTTP status check.
Side effects
- Target URL is unreachable or returns no 402 response — verdict may be 'not_payable' or error
- Target URL returns a malformed x402 payment header — problems array populated with parsing errors
- Network timeout connecting to the target endpoint
- Invalid or missing 'url' query parameter — request rejected
- Target endpoint is up but misconfigured — warnings returned without a fatal verdict
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"offers": [
{
"token": "USDC",
"network": "eip155:8453",
"priceUsd": 0.01
}
],
"verdict": "payable",
"problems": [],
"warnings": []
}
}Tags
x402
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