httppayai

agents.writerslogic.com

Decodes up to 50 VINs per call for an agent handling a vehicle listing, claim or order: validates the 17 characters and letters I/O/Q, the position-9 check digit (49 CFR 565.15), the world manufacturer identifier from a bundled NHTSA vPIC snapshot, and the model year from position 10. Position 10 repeats every 30 years: pass vehicleClass light (position 7 resolves the century) or asOf, otherwise both candidate years are returned and status is unknown. It does not decode make, model, trim or engine (those are manufacturer-defined in positions 4-8), does not call vPIC at runtime, and does not say whether the vehicle exists.