MarketCheck

MarketCheck is an automotive market data platform providing REST APIs for accessing new and used vehicle listings, VIN decoding, market valuations, dealer inventory, and vehicle history data. The platform aggregates billions of data points from over 44,000 US and 3,500 Canadian dealerships, offering daily-updated inventory search, price prediction, market days supply, OEM incentives, auction listings, and third-party integrations for recalls, title checks, and plate-to-VIN lookups.

MarketCheck publishes 15 API contracts indexed on the APIs.io network, including VIN Decoder API, Dealer API, and 13 more. Tagged areas include Automotive, Vehicle Data, VIN Decoding, Car Inventory, and Market Data.

The MarketCheck catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

MarketCheck’s developer surface includes engineering blog, documentation, pricing, and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

26.8/100 thin ▬ flat Agent 25/100 agent aware Front door AI 3/6 light Heartbeat 36/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemium

1 published contract

Automotive Vehicle Data VIN DecodingCar InventoryMarket DataDealer InventoryVehicle Valuation Vehicle HistoryPrice AnalyticsAutomotive Intelligence

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Marketing Management

BC-400

Market

GET /averages GET /comparison GET /competition GET /depreciation

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 26.8/100 · thin

Contract Quality 11.0 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 3.1 / 17

Operational Transparency 0.6 / 11

Contract Governance 1.0 / 10

Discoverability 5.6 / 9

Regulatory Posture 2.4 / 15

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 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 0 / 5

Well-Known Catalog 0 / 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

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data 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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Developer Ergonomics scores 11.9 — up to +17.6 composite points
Access Clarity scores 18.4 — up to +16.3 composite points
Operational Transparency scores 5.3 — up to +12.3 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/marketcheck/apis.yml: open an issue on github.com/api-evangelist/marketcheck to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Data Marketplaces (data providers on cloud data platforms)	distribution	9.6 (thin)	3	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 15

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

MarketCheck VIN Decoder API

Decode 17-digit VINs to extract year, make, model, trim, installed equipment, and full vehicle specifications. Available in Basic and NeoVIN Enhanced tiers for comprehensive bui...

MarketCheck Vehicle History API

Access complete price history, odometer readings, and full listing details for vehicles up to six years back by VIN, enabling market analysis and vehicle valuation insights.

MarketCheck Price API

Predict market prices and retrieve MSRP for used vehicles. Three tiers available: Base (predicted price + MSRP), Premium (adds comparable vehicles), and Premium Plus (adds full ...

MarketCheck Dealer API

Search individual dealerships or locate multiple dealerships in a geographic area by radius. Access dealer profiles, inventory counts, and dealership group information.

MarketCheck Market Insights API

Obtain Market Days Supply (MDS) values, sales statistics, and popular vehicle data to understand supply and demand dynamics across the automotive market.

MarketCheck OEM Incentives API

Search incentive programs from 30+ car manufacturers by make, zip code, and other criteria to surface OEM financing, rebate, and lease offers.

MarketCheck RV API

Search recreational vehicle (RV) inventory and dealer listings across the US and Canada. Supports filtering by price, options, photos, and equipment details.

MarketCheck Dealer API

Dealer search and information

MarketCheck Facets API

Search facets for filtering

MarketCheck Graphs API

Plot data for visualizations

MarketCheck History API

Vehicle listing history

MarketCheck Inventory API

Dealer inventory operations

MarketCheck Listings API

Search and retrieve active car listings

MarketCheck Market API

Market analytics, trends, and pricing insights

MarketCheck VIN Decoder API

VIN decoding and vehicle specifications

Scroll for all 15

Open Collections 8

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

MarketCheck Cars Dealer API

OPEN COLLECTION

MarketCheck Cars Dealer Facets API

OPEN COLLECTION

MarketCheck Cars Dealer Graphs API

OPEN COLLECTION

MarketCheck Cars Dealer History API

OPEN COLLECTION

MarketCheck Cars Dealer Inventory API

OPEN COLLECTION

MarketCheck Cars Dealer Listings API

OPEN COLLECTION

MarketCheck Cars Dealer Market API

OPEN COLLECTION

MarketCheck Cars Dealer VIN Decoder API

OPEN COLLECTION

Scroll for all 8

MarketCheck API pricing

Not yet checked against MarketCheck's own pricing page. Compiled by API Evangelist; confirm before you rely on a figure.

Plan	Price
Free	—
Basic	—
Standard	—
Enterprise	—

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Marketcheck Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Marketcheck Rate Limits

0 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

MarketCheck

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Marketcheck Finops

FINOPS

Semantic Vocabularies 1

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

Marketcheck Context

9 classes · 68 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

MarketCheck — jsonschema rules

5 rules · 4 warnings 1 info

SPECTRAL

JSON Schema 2

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

MarketCheck Listing

25 properties

JSON SCHEMA

MarketCheck Search Response

4 properties

JSON SCHEMA

Examples 2

Example request and response payloads for these APIs.

Search Response Example

3 fields

EXAMPLE

Vin Decode Response Example

16 fields

EXAMPLE

Security Posture 1

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

Marketcheck Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Marketcheck Agentic Access

27 operations

27 operations · 0 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 5

The organization behind the API

Blog

Blog

BlogRSS

BlogRSS

Website

Website

LinkedIn

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: marketcheck
name: MarketCheck
description: MarketCheck is an automotive market data platform providing REST APIs for accessing new and used vehicle listings,
  VIN decoding, market valuations, dealer inventory, and vehicle history data. The platform aggregates billions of data points
  from over 44,000 US and 3,500 Canadian dealerships, offering daily-updated inventory search, price prediction, market days
  supply, OEM incentives, auction listings, and third-party integrations for recalls, title checks, and plate-to-VIN lookups.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/marketcheck.png
url: https://raw.githubusercontent.com/api-evangelist/marketcheck/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-10-06'
specificationVersion: '0.23'
tags:
- Automotive
- Vehicle Data
- VIN Decoding
- Car Inventory
- Market Data
- Dealer Inventory
- Vehicle Valuation
- Vehicle History
- Price Analytics
- Automotive Intelligence
tags_raw:
- Automotive
- Vehicle Data
- VIN Decoder
- Car Inventory
- Market Data
- Dealer Inventory
- Vehicle Valuation
- Vehicle History
- Price Analytics
- Automotive Intelligence
apis:
- name: MarketCheck VIN Decoder API
  description: Decode 17-digit VINs to extract year, make, model, trim, installed equipment, and full vehicle specifications.
    Available in Basic and NeoVIN Enhanced tiers for comprehensive build-level data.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.marketcheck.com/apis/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - VIN Decoding
  - Vehicle Specifications
  - Vehicle Data
  tags_raw:
  - VIN Decoder
  - Vehicle Specifications
  - Vehicle Data
  properties:
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
- name: MarketCheck Vehicle History API
  description: Access complete price history, odometer readings, and full listing details for vehicles up to six years back
    by VIN, enabling market analysis and vehicle valuation insights.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.marketcheck.com/apis/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - Vehicle History
  - Price History
  - VIN
  properties:
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
- name: MarketCheck Price API
  description: 'Predict market prices and retrieve MSRP for used vehicles. Three tiers available: Base (predicted price +
    MSRP), Premium (adds comparable vehicles), and Premium Plus (adds full NeoVIN decode).'
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.marketcheck.com/marketcheck-price/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - Vehicle Pricing
  - Price Prediction
  - Market Valuation
  properties:
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
- name: MarketCheck Dealer API
  description: Search individual dealerships or locate multiple dealerships in a geographic area by radius. Access dealer
    profiles, inventory counts, and dealership group information.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.marketcheck.com/apis/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - Dealer Data
  - Dealership Inventory
  - Geographic Search
  properties:
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
- name: MarketCheck Market Insights API
  description: Obtain Market Days Supply (MDS) values, sales statistics, and popular vehicle data to understand supply and
    demand dynamics across the automotive market.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.marketcheck.com/apis/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - Market Analytics
  - Market Days Supply
  - Sales Data
  properties:
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
- name: MarketCheck OEM Incentives API
  description: Search incentive programs from 30+ car manufacturers by make, zip code, and other criteria to surface OEM financing,
    rebate, and lease offers.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.marketcheck.com/apis/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - OEM Incentives
  - Automotive Incentives
  - Financing
  properties:
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
- name: MarketCheck RV API
  description: Search recreational vehicle (RV) inventory and dealer listings across the US and Canada. Supports filtering
    by price, options, photos, and equipment details.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.marketcheck.com/apis/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - RV
  - Recreational Vehicles
  - Inventory Search
  properties:
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
- aid: marketcheck:marketcheck-dealer-api
  name: MarketCheck Dealer API
  description: Dealer search and information
  humanURL: https://www.marketcheck.com/apis/cars/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - Dealers
  tags_raw:
  - Dealer
  properties:
  - type: OpenAPI
    url: openapi/marketcheck-dealer-api-openapi.yml
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
- aid: marketcheck:marketcheck-facets-api
  name: MarketCheck Facets API
  description: Search facets for filtering
  humanURL: https://www.marketcheck.com/apis/cars/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - Facets
  properties:
  - type: OpenAPI
    url: openapi/marketcheck-facets-api-openapi.yml
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
- aid: marketcheck:marketcheck-graphs-api
  name: MarketCheck Graphs API
  description: Plot data for visualizations
  humanURL: https://www.marketcheck.com/apis/cars/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - Graphs
  properties:
  - type: OpenAPI
    url: openapi/marketcheck-graphs-api-openapi.yml
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
- aid: marketcheck:marketcheck-history-api
  name: MarketCheck History API
  description: Vehicle listing history
  humanURL: https://www.marketcheck.com/apis/cars/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - History
  properties:
  - type: OpenAPI
    url: openapi/marketcheck-history-api-openapi.yml
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
- aid: marketcheck:marketcheck-inventory-api
  name: MarketCheck Inventory API
  description: Dealer inventory operations
  humanURL: https://www.marketcheck.com/apis/cars/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - Inventory
  properties:
  - type: OpenAPI
    url: openapi/marketcheck-inventory-api-openapi.yml
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
- aid: marketcheck:marketcheck-listings-api
  name: MarketCheck Listings API
  description: Search and retrieve active car listings
  humanURL: https://www.marketcheck.com/apis/cars/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - Listings
  properties:
  - type: OpenAPI
    url: openapi/marketcheck-listings-api-openapi.yml
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
- aid: marketcheck:marketcheck-market-api
  name: MarketCheck Market API
  description: Market analytics, trends, and pricing insights
  humanURL: https://www.marketcheck.com/apis/cars/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - Markets
  tags_raw:
  - Market
  properties:
  - type: OpenAPI
    url: openapi/marketcheck-market-api-openapi.yml
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
- aid: marketcheck:marketcheck-vin-decoder-api
  name: MarketCheck VIN Decoder API
  description: VIN decoding and vehicle specifications
  humanURL: https://www.marketcheck.com/apis/cars/
  baseURL: https://mc-api.marketcheck.com
  tags:
  - VIN Decoding
  tags_raw:
  - VIN Decoder
  properties:
  - type: OpenAPI
    url: openapi/marketcheck-vin-decoder-api-openapi.yml
  - type: Documentation
    url: https://docs.marketcheck.com/docs/api/cars
common:
- url: https://www.marketcheck.com/articles/
  type: Blog
- url: https://www.marketcheck.com/feed/
  type: BlogRSS
- type: CapabilityMap
  url: capabilities/marketcheck-capability-edges.yml
  name: MarketCheck Business Capability Map
- type: AgenticAccess
  url: agentic-access/marketcheck-agentic-access.yml
- type: DomainSecurity
  url: security/marketcheck-domain-security.yml
- type: Website
  url: https://www.marketcheck.com/
- type: Documentation
  url: https://docs.marketcheck.com/docs
- type: GitHubOrg
  url: https://github.com/MarketcheckCarsInc
- type: LinkedIn
  url: https://www.linkedin.com/company/marketcheckdata
- type: Blog
  url: https://www.marketcheck.com/category/automotive-api/
- type: Pricing
  url: https://www.marketcheck.com/apis/pricing/
- type: X
  url: https://x.com/MarketCheckCars
- type: Plans
  url: plans/marketcheck-plans-pricing.yml
- type: RateLimits
  url: rate-limits/marketcheck-rate-limits.yml
- type: FinOps
  url: finops/marketcheck-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

MarketCheck API — frequently asked questions

Does MarketCheck have an API?

Yes. APIs.io lists 15 APIs from MarketCheck, including MarketCheck VIN Decoder API, MarketCheck Vehicle History API and MarketCheck Price API, and 12 more.

Is there an OpenAPI specification for the MarketCheck API?

Yes. APIs.io indexes 10 OpenAPI specifications for MarketCheck, each linked for download from this page.

How much does the MarketCheck API cost?

APIs.io lists 4 pricing plans for MarketCheck, with each plan's price, limits and inclusions under Pricing on this page.

Is the MarketCheck API ready for AI agents?

MarketCheck has a Kin Score of 26.8 out of 100 (thin) and an Agent Readiness score of 25.3 (agent-aware), scored by API Evangelist on 2026-11-06.

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