MCPFax Vehicle Diagnostics

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com.mcpscores/vehicle-fault-codesv1.1.2 Domain verified

A fault code, a VIN, or a recall — answered from public NHTSA and standards data.

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dtc_lookup

Look up what a vehicle fault code (OBD-II diagnostic trouble code) means. Returns a reworded definition compiled from open/public sources (with the source and licence per row) plus which makes define the code specifically. Pass 'make' for the make-specific meaning instead of the generic SAE one — the same code can mean different things on different brands. Use this when a scan tool reported a code like P0301, B1318 or U0100; we never guess a meaning (unknown codes return not_found). Descriptions are compilations, not manufacturer verbatim strings, and severity is not guaranteed. Costs $0.006 USDC per call via x402 on Base.

codestring, required

The fault code exactly as reported, e.g. 'P0301', 'B1318', 'C1201', 'U0100'.

makestring

Vehicle make for the manufacturer-specific definition, e.g. 'BMW', 'Ford', 'Toyota'. Optional; omit for the generic SAE meaning.

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Tools (4)

dtc_lookup

Argument	Type	Description
code*	string	The fault code exactly as reported, e.g. 'P0301', 'B1318', 'C1201', 'U0100'.
make	string	Vehicle make for the manufacturer-specific definition, e.g. 'BMW', 'Ford', 'Toyota'. Optional; omit for the generic SAE meaning.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "code"
  ],
  "properties": {
    "code": {
      "type": "string",
      "examples": [
        "P0301"
      ],
      "description": "The fault code exactly as reported, e.g. 'P0301', 'B1318', 'C1201', 'U0100'."
    },
    "make": {
      "type": "string",
      "examples": [
        "BMW"
      ],
      "description": "Vehicle make for the manufacturer-specific definition, e.g. 'BMW', 'Ford', 'Toyota'. Optional; omit for the generic SAE meaning."
    }
  },
  "additionalProperties": false
}

vehicle_recalls

Official NHTSA safety recalls for a vehicle. Returns campaign id, affected component, the safety consequence, and the free remedy, newest first (max 50). Query by make (optionally model and year) or by a known campaign id. Use this before buying a used vehicle or when a customer asks whether their car has open recalls. A zero count means nothing matched the ingested NHTSA subset — it does not prove the vehicle is recall-free. Costs $0.005 USDC per call via x402 on Base.

Argument	Type	Description
make	string	Consumer make name, e.g. 'FORD', 'TOYOTA'. Required unless 'campaign' is given.
year	string	Four-digit model year, e.g. '2018'. Optional.
model	string	Model name, e.g. 'F-150', 'CAMRY'. Optional.
campaign	string	NHTSA campaign id to fetch directly, e.g. '21V123000'. Optional.

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "make": {
      "type": "string",
      "examples": [
        "FORD"
      ],
      "description": "Consumer make name, e.g. 'FORD', 'TOYOTA'. Required unless 'campaign' is given."
    },
    "year": {
      "type": "string",
      "examples": [
        "2018"
      ],
      "description": "Four-digit model year, e.g. '2018'. Optional."
    },
    "model": {
      "type": "string",
      "examples": [
        "F-150"
      ],
      "description": "Model name, e.g. 'F-150', 'CAMRY'. Optional."
    },
    "campaign": {
      "type": "string",
      "examples": [
        "21V123000"
      ],
      "description": "NHTSA campaign id to fetch directly, e.g. '21V123000'. Optional."
    }
  },
  "additionalProperties": false
}

vehicle_tsbs

NHTSA Technical Service Bulletins (manufacturer repair guidance for known defects that are not safety recalls). Returns bulletin id, summary, and the fault codes each bulletin names (max 50). Query by make/model/year, or by fault code to find bulletins that address that specific code. Use this after dtc_lookup when you want the manufacturer's documented fix. A zero count means nothing matched the ingested subset. Costs $0.005 USDC per call via x402 on Base.

Argument	Type	Description
code	string	Fault code to match against the bulletin's listed codes, e.g. 'P0301'. Optional.
make	string	Consumer make name, e.g. 'TOYOTA'. Required unless 'code' is given.
year	string	Four-digit model year, e.g. '2019'. Optional.
model	string	Model name, e.g. 'CAMRY'. Optional.

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "code": {
      "type": "string",
      "examples": [
        "P0301"
      ],
      "description": "Fault code to match against the bulletin's listed codes, e.g. 'P0301'. Optional."
    },
    "make": {
      "type": "string",
      "examples": [
        "TOYOTA"
      ],
      "description": "Consumer make name, e.g. 'TOYOTA'. Required unless 'code' is given."
    },
    "year": {
      "type": "string",
      "examples": [
        "2019"
      ],
      "description": "Four-digit model year, e.g. '2019'. Optional."
    },
    "model": {
      "type": "string",
      "examples": [
        "CAMRY"
      ],
      "description": "Model name, e.g. 'CAMRY'. Optional."
    }
  },
  "additionalProperties": false
}

vin_decode

Decode a Vehicle Identification Number into make, model, model year, body class, engine and plant country using NHTSA's public vPIC database. Use this when you have a VIN and need the exact vehicle before looking up recalls or bulletins. Costs $0.005 USDC per call via x402 on Base.

Argument	Type	Description
vin*	string	The VIN, 11-17 characters, e.g. '1HGCM82633A004352'.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "vin"
  ],
  "properties": {
    "vin": {
      "type": "string",
      "examples": [
        "1HGCM82633A004352"
      ],
      "maxLength": 17,
      "minLength": 11,
      "description": "The VIN, 11-17 characters, e.g. '1HGCM82633A004352'."
    }
  },
  "additionalProperties": false
}