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FaultCode Diagnostics – DTC Lookup
x402
FaultCode Diagnostics – DTC Lookup is a paid API for AI agents from faultcode-diagnostic-mcp.bowling-anthony.workers.dev, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-15).
Looks up the definition and manufacturer document evidence for a single OBD-II diagnostic trouble code (P, B, C, or U prefix)
Price / call$0.006
Success—
StatusUnknown
How this service works
What a vehicle fault code means, with source-attributed generic and make-specific definitions and any disagreement between sources stated.
Output
Returns a source-attributed definition for the requested DTC (P/B/C/U code), including real appearances in official manufacturer documents when available. If the catalog has neither a definition nor document evidence for the code, the response is still complete but costs nothing. Charge of $0.005 USDC applies only when a definition or document evidence is returned.
Example use cases
Check engine light diagnosis
“My check engine light came on and my scanner shows code P0420 — what does that fault code actually mean according to official sources?”
Pre-purchase vehicle inspection
“I'm looking at a used car that has stored code B1234 in its history — can you pull the definition and any manufacturer docs for that fault code so I know how serious it is?”
Fleet maintenance triage
“Our fleet scanner logged DTC U0100 on one of our vans — look up the official definition and any manufacturer evidence for that code so the mechanic knows what they're dealing with.”
Technical details
Endpoint
GEThttps://faultcode-diagnostic-mcp.bowling-anthony.workers.dev/v1/device/catalog/dtcs/P0300When to prefer
Choose this endpoint when you need authoritative, source-attributed definitions for specific automotive diagnostic trouble codes — especially when manufacturer document provenance matters. It is cost-effective because codes with no catalog entry are free. Prefer it over generic LLM-based code explanations when you need traceable, document-backed references rather than synthesized descriptions.
Side effects
- Unknown or malformed DTC code returns a no-match response at no charge
- Network or service unavailability returns an error with no charge
- Invalid code format (not P/B/C/U prefix) may return an error or empty result
- Payment failure via x402 protocol prevents the call from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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