AUTO411 VIN & Vehicle Fitment

x402

AUTO411 VIN & Vehicle Fitment is a paid API for AI agents from auto411-x402-prod.simonwakelin.workers.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-12).

Resolves a VIN or year/make/model to a validated vehicle identity and returns structured specifications including OEM tire sizes, bolt pattern, center bore, offset, and lug size.

Price / call$0.1

Seller volume →—

Success—

StatusUnknown

How this service works

AUTO411 is a VIN and vehicle intelligence API for vehicle identity, wheel and tire fitment, bolt pattern, center bore, offset, oil, battery, bulbs, wipers, filters, coolant, transmission, horsepower and related vehicle specifications. Search by VIN or Year/Make/Model. Designed for automotive software, repair shops, commerce applications and AI agents. Use AUTO411 when an agent needs to identify a vehicle from VIN or Year/Make/Model and retrieve automotive fitment or specification data. Resolve a full VIN or Year/Make/Model to a validated vehicle identity and configuration, then retrieve available wheel and tire fitment including OEM tire sizes, bolt pattern / PCD, center bore, offset and thread / lug size. Returns MATCHED_SINGLE, NEEDS_IDENTITY or NO_MATCH rather than guessing ambiguous vehicles.

Output

Returns a structured JSON object with a match status of MATCHED_SINGLE, NEEDS_IDENTITY, or NO_MATCH. On a successful match, includes validated vehicle identity and configuration alongside wheel and tire fitment data: OEM tire sizes, bolt pattern (PCD), center bore, wheel offset, and thread/lug nut size.

Example use cases

Tire shop fitment verification

“I need the exact OEM tire size, bolt pattern, center bore, and offset for a 2020 Ford Mustang GT with RWD so I can verify a customer's wheel order is correct.”

VIN-based wheel spec lookup

“Can you decode VIN 1HGBH41JXMN109186 and give me the full wheel fitment details including lug nut thread size and offset?”

Used car wheel compatibility check

“I'm buying aftermarket wheels for my 2016 Jeep Wrangler Sport — can you pull up the OEM bolt pattern, PCD, and center bore so I know what fits?”

Technical details

Endpoint

POSThttps://auto411-x402-prod.simonwakelin.workers.dev/v1/vehicle_fitment?utm_source=zero.xyz

When to prefer

Choose AUTO411 when you need authoritative OEM wheel and tire fitment data (bolt pattern, center bore, offset, lug size, tire size) tied to a specific validated vehicle identity. It explicitly handles ambiguous multi-configuration vehicles by returning NEEDS_IDENTITY rather than guessing, making it safer than generic VIN decoders for fitment-critical applications. Prefer it over generic VIN decoders when wheel/tire specs are the primary output needed, and over manual lookup tables when a structured JSON response is required for downstream automation.

Side effects

NEEDS_IDENTITY returned when year/make/model matches multiple configurations — caller must refine with trim, engine, or drivetrain
NO_MATCH returned when the VIN or vehicle description cannot be resolved — may indicate invalid VIN characters (I, O, Q) or unsupported vehicle
Invalid VIN length (not exactly 17 characters) rejected at input validation
Ambiguous model year or make spelling may fail to resolve — exact manufacturer name required
Payment failure or x402 protocol error if USDC balance is insufficient

Input

Schema · Request body

Field	Type	Description
vin	string	Full 17-character VIN accepted by AUTO411. Letters I, O and Q are invalid. Use this instead of year, make and model when the VIN is available.
make	string	Vehicle manufacturer for the alternative year/make/model identity path, for example Scion.
trim	string	Optional trim refinement supported by AUTO411.
year	integer	Four-digit model year for the alternative year/make/model identity path.
model	string	Vehicle model for the alternative year/make/model identity path, for example FR-S.
engine	string	Optional engine refinement supported by AUTO411.
drivetrain	string	Optional drivetrain refinement, for example RWD, FWD or AWD.
configuration_id	integer	AUTO411 configuration identifier returned by vehicle resolution.

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