Window Sticker VIN API

A free, keyless VIN-lookup service that returns the original factory window sticker (Monroney label) PDF plus an NHTSA vPIC specification decode for any 17-character US VIN. Serves decoded vehicle specs, EPA fuel economy, crash ratings, and recalls over an open, CORS-enabled JSON API with no registration, no API key and no paid tiers. Factory PDFs are available for 20 makes (Ford, Lincoln, the GM and Stellantis brands, Subaru, Kia, Hyundai, Genesis, Toyota and Lexus from model year 2025, and Nissan and Infiniti as Nissan's copy stamped "Unofficial Copy"); every other make still returns a full specification decode. A remote MCP server at https://windowsticker.org/mcp exposes the same lookup to agents.

Window Sticker VIN API publishes 2 API contracts indexed on the APIs.io network: Sticker API and Vin API. Tagged areas include Automotive, Vehicle Data, VIN Decoding, Monroney, and Window sticker.

The Window Sticker VIN API catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Window Sticker VIN API’s developer surface includes documentation, API reference, authentication, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub
35.5/100 thin ▬ flat Agent 32/100 agent ready Front door AI 1/6 silent Full breakdown ↓
scored 2026-10-09 · rubric v0.23.0
2 published contracts 1 MCP Servers
AutomotiveVehicle DataVIN DecodingMonroneyWindow stickerGovernment open dataAuto RetailDealer tooling

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-09 · rubric v0.23.0
Composite quality — 35.5/100 · thin
Contract Quality 10.7 / 21
Developer Ergonomics 5.2 / 17
Access Clarity 3.6 / 17
Operational Transparency 1.7 / 11
Contract Governance 2.2 / 10
Discoverability 5.2 / 9
Regulatory Posture 3.7 / 15
Agent readiness — 32/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 6 / 6
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 4 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/window-sticker-vin-api: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Window Sticker VIN API Sticker API

The Sticker API from Window Sticker VIN API — 1 operation(s) for sticker.

Window Sticker VIN API Vin API

The Vin API from Window Sticker VIN API — 1 operation(s) for vin.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Window Sticker VIN API MCP Server

Remote MCP server at windowsticker.org; 3 tools listed.

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Window Sticker Vin Api Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Window Sticker Vin Api Rate Limits

0 limits

RATE LIMITS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Window Sticker Vin Api Context

1 classes · 5 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Window Sticker VIN API API Rules

12 rules · 10 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Window Sticker Vin Api Openapi Overlay

3 actions · documentation · window-sticker-vin-api-openapi.json

GENERATED

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

VinResponse

5 properties

JSON SCHEMA

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Window Sticker Vin Api Authentication

1 scheme

SECURITY

Window Sticker Vin Api Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Window Sticker Vin Api Agentic Access

4 operations

4 operations · 0 acting

AGENTIC

Resources

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 6

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 LLMsTxt
LLMsTxt
 MCPServer
MCPServer
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown
 AgentSkill
AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral
Spectral
 JSONLD
JSONLD
 Vocabulary
Vocabulary
 Conventions
Conventions
 Lifecycle
Lifecycle
 Conformance
Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 2

Status, limits, changes, and where to get help

StatusPage
StatusPage
 RateLimits
RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy
 Plans
Plans

Company 1

The organization behind the API

Website
Website

Other 3

Properties that don't map to a standard resource type

Hosts
Hosts
 Vendors
Vendors
 Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
name: Window Sticker VIN API
description: A free, keyless VIN-lookup service that returns the original factory window sticker (Monroney label) PDF plus
  an NHTSA vPIC specification decode for any 17-character US VIN. Serves decoded vehicle specs, EPA fuel economy, crash ratings,
  and recalls over an open, CORS-enabled JSON API with no registration, no API key and no paid tiers. Factory PDFs are available
  for 20 makes (Ford, Lincoln, the GM and Stellantis brands, Subaru, Kia, Hyundai, Genesis, Toyota and Lexus from model year
  2025, and Nissan and Infiniti as Nissan's copy stamped "Unofficial Copy"); every other make still returns a full specification
  decode. A remote MCP server at https://windowsticker.org/mcp exposes the same lookup to agents.
image: https://windowsticker.org/og.png
url: https://raw.githubusercontent.com/api-evangelist/window-sticker-vin-api/refs/heads/main/apis.yml
created: '2026-09-19'
modified: '2026-10-03'
specificationVersion: '0.21'
tags:
- Automotive
- Vehicle Data
- VIN Decoding
- Monroney
- Window sticker
- Government open data
- Auto Retail
- Dealer tooling
tags_raw:
- Automotive
- Vehicle data
- VIN decoding
- Monroney
- Window sticker
- Government open data
- Auto retail
- Dealer tooling
maintainers:
- FN: Window Sticker VIN API
  url: https://windowsticker.org
common:
- type: AgenticAccess
  url: agentic-access/window-sticker-vin-api-agentic-access.yml
- type: Spectral
  url: rules/window-sticker-vin-api-rules.yml
- type: JSONLD
  url: json-ld/window-sticker-vin-api-context.jsonld
- type: Vocabulary
  url: vocabulary/window-sticker-vin-api-vocabulary.yml
- type: LLMsTxt
  url: llms/window-sticker-vin-api-llms.txt
- type: MCPServer
  url: mcp/window-sticker-vin-api-mcp.yml
- type: Hosts
  url: hosts/window-sticker-vin-api-hosts.yml
- type: Vendors
  url: vendors/window-sticker-vin-api-vendors.yml
- type: TermsOfService
  url: https://windowsticker.org/terms
- type: Overlay
  url: overlays/window-sticker-vin-api-openapi-overlay.yaml
- type: Website
  url: https://windowsticker.org/
- type: Documentation
  url: https://windowsticker.org/api-docs
- type: APIReference
  url: https://windowsticker.org/api-docs
- type: PrivacyPolicy
  url: https://windowsticker.org/privacy
- type: StatusPage
  url: https://windowsticker.org/status
- type: LLMsTxt
  url: https://windowsticker.org/llms.txt
- type: WellKnown
  url: well-known/window-sticker-vin-api-well-known.yml
- type: Authentication
  url: authentication/window-sticker-vin-api-authentication.yml
- type: Conventions
  url: conventions/window-sticker-vin-api-conventions.yml
- type: Lifecycle
  url: lifecycle/window-sticker-vin-api-lifecycle.yml
- type: Conformance
  url: conformance/window-sticker-vin-api-conformance.yml
- type: DomainSecurity
  url: security/window-sticker-vin-api-domain-security.yml
- type: AgentSkill
  url: skills/_index.yml
- type: RateLimits
  url: rate-limits/window-sticker-vin-api-rate-limits.yml
- type: Plans
  url: plans/window-sticker-vin-api-plans-pricing.yml
apis:
- aid: window-sticker-vin-api:window-sticker-vin-api-sticker-api
  name: Window Sticker VIN API Sticker API
  description: The Sticker API from Window Sticker VIN API — 1 operation(s) for sticker.
  humanURL: https://windowsticker.org/api-docs
  tags:
  - Sticker
  properties:
  - type: OpenAPI
    url: openapi/window-sticker-vin-api-sticker-api-openapi.yml
  - type: Documentation
    url: https://windowsticker.org/api-docs
  - type: APIReference
    url: https://windowsticker.org/api-docs
  - type: LLMsTxt
    url: https://windowsticker.org/llms.txt
  - type: Authentication
    url: authentication/window-sticker-vin-api-authentication.yml
  - type: Conventions
    url: conventions/window-sticker-vin-api-conventions.yml
  - type: DataModel
    url: data-model/window-sticker-vin-api-data-model.yml
  - type: ErrorCatalog
    url: errors/window-sticker-vin-api-problem-types.yml
- aid: window-sticker-vin-api:window-sticker-vin-api-vin-api
  name: Window Sticker VIN API Vin API
  description: The Vin API from Window Sticker VIN API — 1 operation(s) for vin.
  humanURL: https://windowsticker.org/api-docs
  tags:
  - VIN
  tags_raw:
  - Vin
  properties:
  - type: OpenAPI
    url: openapi/window-sticker-vin-api-vin-api-openapi.yml
  - type: Documentation
    url: https://windowsticker.org/api-docs
  - type: APIReference
    url: https://windowsticker.org/api-docs
  - type: LLMsTxt
    url: https://windowsticker.org/llms.txt
  - type: Authentication
    url: authentication/window-sticker-vin-api-authentication.yml
  - type: Conventions
    url: conventions/window-sticker-vin-api-conventions.yml
  - type: DataModel
    url: data-model/window-sticker-vin-api-data-model.yml
  - type: ErrorCatalog
    url: errors/window-sticker-vin-api-problem-types.yml
  - type: JSONSchema
    url: json-schema/window-sticker-vin-api-vin-response-schema.json
generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 90
  at: '2026-09-19T01:43:34.140Z'
x-correction-request:
  requested: '2026-09-27'
  source: https://github.com/api-evangelist/window-sticker-vin-api/issues/1
  request: 'Corrections: (1) factory window-sticker PDFs cover 20 makes since 2026-09-21, not 16 (Toyota/Lexus from MY2025;
    Nissan/Infiniti as Nissan''s own copy stamped "Unofficial Copy"; list at https://windowsticker.org/coverage and llms.txt).
    (2) Auth: the API takes no key and no token (the 2026-09-21 run graded auth_clarity "bearer"; our own authentication file
    says requires_auth: false). (3) There is an MCP server -- record it.'
  applied: '2026-10-03'
  applied_note: Applied by hand. (1) Description now says 20 makes, verified live on https://windowsticker.org/coverage and
    llms.txt (Ford, Lincoln, Chevrolet, GMC, Buick, Cadillac, Jeep, Ram, Dodge, Chrysler, Fiat, Alfa Romeo, Subaru, Kia, Hyundai,
    Genesis, Toyota, Lexus, Nissan, Infiniti). (2) Keyless auth confirmed already recorded (authentication requires_auth false).
    (3) MCP server confirmed already recorded; the manifest now carries the live initialize result and tools/list (get_window_sticker,
    which_makes_are_covered, why_no_sticker; no auth). docs/corrections.yml note that placed the MCP server at /api/sticker/{vin}
    corrected to /mcp.
x-enrichment:
  date: '2026-09-28'
  status: enriched
  artifacts_added: 9
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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