{"uid":"cap_n0J0YncIK7bsJ-YhJqAk-","slug":"mcpfax-vehicle-diagnostics-dtc-lookup-fb4266b5","name":"MCPFax Vehicle Diagnostics DTC Lookup","description":"What a vehicle fault code means, with source-attributed generic and make-specific definitions and any disagreement between sources stated.","url":"https://mcpfax-diag.bowling-anthony.workers.dev/dtc","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.006","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.006/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Y5rD9Fc5xuD-fQpVxycXl","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.006","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up vehicle diagnostic trouble codes (DTCs) to return fault descriptions, system context, and repair guidance","exampleAgentPrompt":"My car's check engine light is on and the OBD scanner pulled code P0420 — can you look that up and tell me what system it affects, what it means, and what I should do about it?","exampleUseCases":[{"title":"Decode a check engine code","prompt":"My OBD scanner just threw code P0171 on my 2018 Toyota Camry — what does that mean and is it something I need to fix urgently?"},{"title":"DIY mechanic fault research","prompt":"I'm working on a 2015 Ford F-150 and got DTC P0301 — look that up for me so I know what's going wrong before I start pulling things apart."},{"title":"Fleet vehicle triage","prompt":"One of our delivery vans is showing fault code U0100 — can you look up what that DTC means so I can decide whether to pull the vehicle from service today?"}],"resultDescription":"Returns a structured response describing the diagnostic trouble code including the fault name, the vehicle system or subsystem affected, a plain-language explanation of the fault condition, and available repair or diagnostic guidance.","failureModes":["Invalid or unrecognized DTC code returns an error or empty result","Missing required input fields (e.g. no DTC provided) returns a validation error","Payment failure via x402 protocol results in 402 response and no data","Service unavailability on the Cloudflare Worker returns a 5xx error","Malformed POST body returns a 400 bad request error"],"whenToPreferThis":"Choose this endpoint when you need to decode a specific OBD-II or manufacturer-specific diagnostic trouble code and want plain-language fault descriptions with repair context. Prefer it over generic automotive databases when you want a lightweight, pay-per-call API without subscription overhead. Pair with the sibling VIN lookup, TSB lookup, and recalls endpoints on the same host for comprehensive vehicle diagnostics workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:31:40.059Z","isFirstParty":false}