CARFAX

CARFAX is a vehicle history reporting company that provides VIN-based history reports, dealer inventory solutions, QuickVIN license plate decoding, and used car valuations based on service records, accident history, ownership history, and title data. APIs are available to dealers, lenders, insurers, and service shops through enterprise partnership agreements.

CARFAX is listed with 5 APIs on the APIs.io network, including Vehicle Valuation API, and 4 more. Tagged areas include Vehicle History, VIN Lookup, Automotive, Used Cars, and Dealer Tools.

CARFAX’s developer surface includes documentation, engineering blog, pricing, and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

20.0/100 emerging ▬ flat Agent 14/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

5 APIs

Vehicle History VIN Lookup Automotive Used Cars Dealer Tools Insurance LendingQuickVINService History

Kin Score

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

Composite quality — 20.0/100 · emerging

Contract Quality 5.1 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 3.1 / 17

Operational Transparency 2.9 / 11

Contract Governance 0.0 / 10

Discoverability 5.3 / 9

Regulatory Posture 0.8 / 15

Agent readiness — 14/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 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 0 / 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 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Insurance 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

11 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 24.0 — up to +19.0 composite points
Developer Ergonomics scores 11.9 — up to +17.6 composite points
Access Clarity scores 18.4 — up to +16.3 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/carfax/apis.yml: open an issue on github.com/api-evangelist/carfax 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
Consumer Lending Licensing (UK, US, Canada credit licence registers)	undeclared	-	-	-

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 5

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

CARFAX QuickVIN API

Converts a license plate number and state into a VIN with full vehicle decode (year, make, model, trim). Each QuickVIN lookup includes access to a CARFAX Vehicle History Report....

CARFAX Service History Reporting API

Enables automotive repair shops and DMS/SMS providers to submit vehicle service and repair records to CARFAX. Data is transmitted via FTP batch upload. Integration requires a CA...

CARFAX Vehicle Valuation API

Provides Market-Based and History-Based vehicle valuations for lenders, insurers, and government entities. Market-Based values use machine learning on year, make, model, trim, o...

CARFAX VIN Scan Detail API

Delivers comprehensive VIN-level data in ten groupings including vehicle description, demographic information, activity logs, problem indicators, damage assessment, ownership hi...

CARFAX Vehicle History Report API

Enterprise API for retrieving CARFAX Vehicle History Reports (VHR) by VIN. Provides accident and damage history, service records, ownership history, title problems, lemon histor...

CARFAX API pricing

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

Plan	Price
Single Report consumer	$44.99 per report
3-Report Bundle consumer	$64.99 per bundle
5-Report Bundle consumer	$99.99 per bundle
CARFAX for Dealers enterprise	—
CARFAX for Lenders and Insurance enterprise	—
CARFAX for Service Shops enterprise	—

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Carfax Plans Pricing

6 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Carfax Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Carfax Finops

FINOPS

Security Posture 1

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

Carfax Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

Access & Security 1

Authentication, authorization, and security posture

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

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: carfax
name: CARFAX
description: CARFAX is a vehicle history reporting company that provides VIN-based history reports, dealer inventory solutions,
  QuickVIN license plate decoding, and used car valuations based on service records, accident history, ownership history,
  and title data. APIs are available to dealers, lenders, insurers, and service shops through enterprise partnership agreements.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/carfax.png
url: https://raw.githubusercontent.com/api-evangelist/carfax/refs/heads/main/apis.yml
created: 2026-06-13
modified: '2026-07-25'
specificationVersion: '0.23'
tags:
- Vehicle History
- VIN Lookup
- Automotive
- Used Cars
- Dealer Tools
- Insurance
- Lending
- QuickVIN
- Service History
apis:
- aid: carfax:quickvin-api
  name: CARFAX QuickVIN API
  description: Converts a license plate number and state into a VIN with full vehicle decode (year, make, model, trim). Each
    QuickVIN lookup includes access to a CARFAX Vehicle History Report. Available to lenders, dealers, and insurance companies
    through enterprise agreements.
  humanURL: https://www.carfaxforlenders.com/products/quickvin/
  baseURL: https://www.carfaxforlenders.com
  tags:
  - License Plate Lookup
  - VIN Decode
  - QuickVIN
  - Lenders
  properties:
  - type: Documentation
    url: https://www.carfaxforlenders.com/products/quickvin/
- aid: carfax:service-history-reporting-api
  name: CARFAX Service History Reporting API
  description: Enables automotive repair shops and DMS/SMS providers to submit vehicle service and repair records to CARFAX.
    Data is transmitted via FTP batch upload. Integration requires a CARFAX Service Data Transfer Facilitation Agreement.
  humanURL: https://www.carfaxserviceshops.com/
  baseURL: https://www.carfaxserviceshops.com
  tags:
  - Service History
  - Repair Shops
  - DMS Integration
  - FTP
  properties:
  - type: Documentation
    url: https://www.carfaxserviceshops.com/
- aid: carfax:vehicle-valuation-api
  name: CARFAX Vehicle Valuation API
  description: Provides Market-Based and History-Based vehicle valuations for lenders, insurers, and government entities.
    Market-Based values use machine learning on year, make, model, trim, odometer, location, and daily market data. History-Based
    values adjust for accident and damage history, service records, and ownership history. Available via CARFAX Canada for
    enterprise customers.
  humanURL: https://go.carfax.ca/en-ca/big/solutions
  baseURL: https://apireference.carfax.ca
  tags:
  - Vehicle Valuation
  - Pricing
  - Lenders
  - Insurance
  - Canada
  properties:
  - type: Documentation
    url: https://apireference.carfax.ca/
  - type: OpenAPI
    url: https://apireference.carfax.ca/
- aid: carfax:vin-scan-detail-api
  name: CARFAX VIN Scan Detail API
  description: Delivers comprehensive VIN-level data in ten groupings including vehicle description, demographic information,
    activity logs, problem indicators, damage assessment, ownership history, and fraud detection. Available via API or bulk
    sFTP upload for Canadian enterprise customers.
  humanURL: https://go.carfax.ca/en-ca/big/solutions
  baseURL: https://apireference.carfax.ca
  tags:
  - VIN Data
  - Fraud Prevention
  - Damage Assessment
  - Bulk Data
  - Canada
  tags_raw:
  - VIN Data
  - Fraud Detection
  - Damage Assessment
  - Bulk Data
  - Canada
  properties:
  - type: Documentation
    url: https://apireference.carfax.ca/
- aid: carfax:vehicle-history-report-api
  name: CARFAX Vehicle History Report API
  description: Enterprise API for retrieving CARFAX Vehicle History Reports (VHR) by VIN. Provides accident and damage history,
    service records, ownership history, title problems, lemon history, and recall information. Requires a CARFAX Service Data
    Transfer Facilitation Agreement; not publicly subscribable.
  humanURL: https://www.carfax.com/vehicle-history-reports/
  tags:
  - Vehicle History
  - VIN
  - Accident History
  - Service Records
  properties:
  - type: Documentation
    url: https://www.carfax.com/company/partners
  - type: Partners
    url: https://www.carfax.com/company/partners
common:
- type: DomainSecurity
  url: security/carfax-domain-security.yml
- type: Website
  url: https://www.carfax.com
- type: Documentation
  url: https://www.carfax.com/company/partners
- type: GitHubOrg
  url: https://github.com/CARFAX
- type: LinkedIn
  url: https://www.linkedin.com/company/carfax
- type: Blog
  url: https://www.carfax.com/press
- type: Pricing
  url: https://www.carfax.com/vehicle-history-reports/
- type: StatusPage
  url: https://support.carfax.com/
- type: X
  url: https://x.com/carfaxinc
- type: Plans
  url: plans/carfax-plans-pricing.yml
- type: RateLimits
  url: rate-limits/carfax-rate-limits.yml
- type: FinOps
  url: finops/carfax-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

CARFAX API — frequently asked questions

Does CARFAX have an API?

Yes. APIs.io lists 5 APIs from CARFAX, including CARFAX QuickVIN API, CARFAX Service History Reporting API and CARFAX Vehicle Valuation API, and 2 more.

Is there an OpenAPI specification for the CARFAX API?

Yes. APIs.io indexes 1 OpenAPI specification for CARFAX, each linked for download from this page.

How much does the CARFAX API cost?

APIs.io lists 6 pricing plans for CARFAX, with each plan's price, limits and inclusions under Pricing on this page.

Is the CARFAX API ready for AI agents?

CARFAX has a Kin Score of 20.0 out of 100 (emerging) and an Agent Readiness score of 13.6 (agent-aware), scored by API Evangelist on 2026-11-06.

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