fourzerotwo-si Us Vehicles API
Vehicle Decoder (NHTSA vPIC): Decode any VIN (worldwide 17-character) and look up makes, models, manufacturers and WMI codes.
Vehicle Decoder (NHTSA vPIC): Decode any VIN (worldwide 17-character) and look up makes, models, manufacturers and WMI codes.
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openapi: 3.2.0
info:
title: Fourzerotwo Si Us Vehicles API
version: 1.1.0
contact:
url: https://fourzerotwo.si
description: 'Operations tagged us-vehicles across 2 of this provider''s published API definitions: openapi.json, fourzerotwo-si-openapi.json. Each path carries the servers of the definition it was published in.'
servers:
- url: https://fourzerotwo.si
tags:
- name: us-vehicles
description: 'Vehicle Decoder (NHTSA vPIC): Decode any VIN (worldwide 17-character) and look up makes, models, manufacturers and WMI codes.'
paths:
/v1/us-vehicles/decode-vin:
get:
operationId: us_vehicles__decode_vin
summary: 'Vehicle Decoder (NHTSA vPIC): Decode VIN'
description: 'Make, model, year, body, engine, plant and safety equipment for a VIN. Price: $0.002 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- us-vehicles
externalDocs:
url: https://fourzerotwo.si/apis/us-vehicles/decode-vin
parameters:
- name: vin
in: query
required: true
description: 17-character VIN
schema:
type: string
maxLength: 17
example: 1HGCM82633A004352
- name: modelyear
in: query
required: false
description: Model year hint
schema:
type: integer
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.002000'
x-free-tier: free
x-mcp-tool: us-vehicles__decode-vin
servers:
- url: https://fourzerotwo.si
/v1/us-vehicles/decode-wmi:
get:
operationId: us_vehicles__decode_wmi
summary: 'Vehicle Decoder (NHTSA vPIC): Decode WMI'
description: 'Manufacturer, country and vehicle type for a World Manufacturer Identifier (first 3 VIN characters). Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- us-vehicles
externalDocs:
url: https://fourzerotwo.si/apis/us-vehicles/decode-wmi
parameters:
- name: wmi
in: query
required: true
description: WMI
schema:
type: string
maxLength: 6
example: SAJ
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.001000'
x-free-tier: free
x-mcp-tool: us-vehicles__decode-wmi
servers:
- url: https://fourzerotwo.si
/v1/us-vehicles/makes:
get:
operationId: us_vehicles__makes
summary: 'Vehicle Decoder (NHTSA vPIC): All makes'
description: 'Every vehicle make in vPIC. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- us-vehicles
externalDocs:
url: https://fourzerotwo.si/apis/us-vehicles/makes
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.001000'
x-free-tier: free
x-mcp-tool: us-vehicles__makes
servers:
- url: https://fourzerotwo.si
/v1/us-vehicles/models:
get:
operationId: us_vehicles__models
summary: 'Vehicle Decoder (NHTSA vPIC): Models for a make'
description: 'Every model for a make. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- us-vehicles
externalDocs:
url: https://fourzerotwo.si/apis/us-vehicles/models
parameters:
- name: make
in: query
required: true
description: Make, e.g. "honda"
schema:
type: string
example: honda
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.001000'
x-free-tier: free
x-mcp-tool: us-vehicles__models
servers:
- url: https://fourzerotwo.si
/v1/us-vehicles/models-year:
get:
operationId: us_vehicles__models_year
summary: 'Vehicle Decoder (NHTSA vPIC): Models for a make and year'
description: 'Models for a make in a model year. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- us-vehicles
externalDocs:
url: https://fourzerotwo.si/apis/us-vehicles/models-year
parameters:
- name: make
in: query
required: true
description: Make, e.g. "honda"
schema:
type: string
example: honda
- name: year
in: query
required: true
description: Model year
schema:
type: integer
example: 2024
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.001000'
x-free-tier: free
x-mcp-tool: us-vehicles__models-year
servers:
- url: https://fourzerotwo.si
/v1/us-vehicles/vehicle-types:
get:
operationId: us_vehicles__vehicle_types
summary: 'Vehicle Decoder (NHTSA vPIC): Vehicle types for a make'
description: 'Vehicle types (car, truck, motorcycle…) a make produces. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- us-vehicles
externalDocs:
url: https://fourzerotwo.si/apis/us-vehicles/vehicle-types
parameters:
- name: make
in: query
required: true
description: Make, e.g. "honda"
schema:
type: string
example: honda
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.001000'
x-free-tier: free
x-mcp-tool: us-vehicles__vehicle-types
servers:
- url: https://fourzerotwo.si
/v1/us-vehicles/manufacturer:
get:
operationId: us_vehicles__manufacturer
summary: 'Vehicle Decoder (NHTSA vPIC): Manufacturer details'
description: 'Manufacturer address, country and vehicle types by name or id. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- us-vehicles
externalDocs:
url: https://fourzerotwo.si/apis/us-vehicles/manufacturer
parameters:
- name: name
in: query
required: true
description: Manufacturer name
schema:
type: string
example: honda
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.001000'
x-free-tier: free
x-mcp-tool: us-vehicles__manufacturer
servers:
- url: https://fourzerotwo.si
/v1/us-vehicles/wmis:
get:
operationId: us_vehicles__wmis
summary: 'Vehicle Decoder (NHTSA vPIC): WMIs for a manufacturer'
description: 'World Manufacturer Identifiers registered to a manufacturer. Price: $0.001 USDC per call via x402. Free within the daily allowance with a free key.'
tags:
- us-vehicles
externalDocs:
url: https://fourzerotwo.si/apis/us-vehicles/wmis
parameters:
- name: name
in: query
required: true
description: Manufacturer
schema:
type: string
example: jaguar
responses:
'200':
description: The data (paid, or free tier).
content:
application/json: {}
'402':
$ref: '#/components/responses/PaymentRequired'
'400':
$ref: '#/components/responses/Error'
'404':
$ref: '#/components/responses/Error'
'502':
$ref: '#/components/responses/Error'
security:
- {}
- freeKey: []
x-price-usd: '0.001000'
x-free-tier: free
x-mcp-tool: us-vehicles__wmis
servers:
- url: https://fourzerotwo.si
components:
responses:
PaymentRequired:
description: x402 payment required. The body (also base64 in the PAYMENT-REQUIRED header) lists accepted payments.
headers:
PAYMENT-REQUIRED:
schema:
type: string
description: Base64 JSON x402 v2 PaymentRequired
content:
application/json:
schema:
type: object
properties:
x402Version:
type: integer
error:
type: string
accepts:
type: array
items:
type: object
Error:
description: 400 = invalid input, 404 = not found at the source, 502 = the source failed. Never charged.
content:
application/json:
schema:
type: object
properties:
error:
type: string
charged:
type: boolean
securitySchemes:
freeKey:
type: apiKey
in: header
name: X-API-Key
description: Optional free key (fzt_…) for the free tier.
x-refined-from:
- openapi.json
- fourzerotwo-si-openapi.json