CarChat

CarChat (carchat.io) provides a free live dealership inventory marketplace. It aggregates listings from dealership websites, inventory feeds, and Hammer accounts, refreshing daily. Buyers can search in plain English, view advertised prices, and contact dealers directly without creating an account. The service is intended for both human users and AI assistants, offering an open API at /api/v1 for search and /api/lead for inquiries.

CarChat publishes 5 API contracts indexed on the APIs.io network, including Dealers API, Inventory API, Lead API, and 2 more. Tagged areas include Company, Marketplace, Automotive, Artificial Intelligence, and OpenAPI.

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

🌐 Visit website 📡 Profile data on GitHub

22.0/100 emerging Agent 25/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 MCP Servers 1 Agent Skills

Company Marketplace Automotive Artificial Intelligence OpenAPI

Kin Score

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

Composite quality — 22.0/100 · emerging

Contract Quality 10.0 / 21

Developer Ergonomics 0.3 / 17

Access Clarity 1.8 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 4.5 / 9

Regulatory Posture 2.0 / 15

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 Horizontal (data, software, accessibility, platform) 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):

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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
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 1.8 — up to +19.6 composite points
Access Clarity scores 10.5 — up to +17.9 composite points
Contract Quality scores 47.0 — up to +13.3 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/carchat-io/apis.yml: open an issue on github.com/api-evangelist/carchat-io 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 →

Standards implemented 2

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 5

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

CarChat Dealers API

The Dealers API from CarChat — 1 operation(s) for dealers.

CarChat Inventory API

The Inventory API from CarChat — 1 operation(s) for inventory.

CarChat Lead API

The Lead API from CarChat — 1 operation(s) for lead.

CarChat Segments API

The Segments API from CarChat — 1 operation(s) for segments.

CarChat Vehicles API

The Vehicles API from CarChat — 1 operation(s) for vehicles.

MCP Servers 1

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

CarChat MCP Server

Remote MCP server at carchat.io.

MCP SERVER

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

carchat-io-submit-vehicle-inquiry

AGENT SKILL

Semantic Vocabularies 1

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

Carchat Io Context

1 classes · 15 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

CarChat API Rules

36 rules · 34 errors 1 warnings 1 info

SPECTRAL

Security Posture 1

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

Carchat Io Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Carchat Io Agentic Access

5 operations · 1 acting

AGENTIC

Resources

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

MCPServer

WellKnown

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: carchat-io
name: CarChat
description: CarChat (carchat.io) provides a free live dealership inventory marketplace. It aggregates listings from dealership
  websites, inventory feeds, and Hammer accounts, refreshing daily. Buyers can search in plain English, view advertised prices,
  and contact dealers directly without creating an account. The service is intended for both human users and AI assistants,
  offering an open API at /api/v1 for search and /api/lead for inquiries.
url: https://artifacts.apis.io/carchat-io/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-03 (modular-v1; was harvest)
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.20'
created: '2026-11-03'
modified: '2026-11-03'
tags:
- Company
- Marketplace
- Automotive
- Artificial Intelligence
- OpenAPI
tags_raw:
- Company
- Marketplace
- Automotive
- AI
- OpenAPI
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/carchat-io-agentic-access.yml
- type: Spectral
  url: rules/carchat-io-rules.yml
- type: JSONLD
  url: json-ld/carchat-io-context.jsonld
- type: Vocabulary
  url: vocabulary/carchat-io-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/carchat-io-data-model.yml
- type: ErrorCatalog
  url: errors/carchat-io-problem-types.yml
- type: Conformance
  url: conformance/carchat-io-conformance.yml
- type: LLMsTxt
  url: llms/carchat-io-llms.txt
- type: MCPServer
  url: mcp/carchat-io-mcp.yml
- type: WellKnown
  url: well-known/carchat-io-well-known.yml
- type: Hosts
  url: hosts/carchat-io-hosts.yml
- type: Vendors
  url: vendors/carchat-io-vendors.yml
- type: TermsOfService
  url: https://carchat.io/terms
- type: PrivacyPolicy
  url: https://carchat.io/privacy
- type: DomainSecurity
  url: security/carchat-io-domain-security.yml
- type: Website
  url: https://carchat.io/
apis:
- aid: carchat-io:carchat-io-dealers-api
  name: CarChat Dealers API
  description: The Dealers API from CarChat — 1 operation(s) for dealers.
  baseURL: https://carchat.io
  tags:
  - Dealers
  properties:
  - type: OpenAPI
    url: openapi/carchat-io-dealers-api-openapi.yml
- aid: carchat-io:carchat-io-inventory-api
  name: CarChat Inventory API
  description: The Inventory API from CarChat — 1 operation(s) for inventory.
  baseURL: https://carchat.io
  tags:
  - Inventory
  properties:
  - type: OpenAPI
    url: openapi/carchat-io-inventory-api-openapi.yml
- aid: carchat-io:carchat-io-lead-api
  name: CarChat Lead API
  description: The Lead API from CarChat — 1 operation(s) for lead.
  baseURL: https://carchat.io
  tags:
  - Leads
  tags_raw:
  - Lead
  properties:
  - type: OpenAPI
    url: openapi/carchat-io-lead-api-openapi.yml
- aid: carchat-io:carchat-io-segments-api
  name: CarChat Segments API
  description: The Segments API from CarChat — 1 operation(s) for segments.
  baseURL: https://carchat.io
  tags:
  - Segments
  properties:
  - type: OpenAPI
    url: openapi/carchat-io-segments-api-openapi.yml
- aid: carchat-io:carchat-io-vehicles-api
  name: CarChat Vehicles API
  description: The Vehicles API from CarChat — 1 operation(s) for vehicles.
  baseURL: https://carchat.io
  tags:
  - Vehicles
  properties:
  - type: OpenAPI
    url: openapi/carchat-io-vehicles-api-openapi.yml
x-enrichment:
  date: '2026-11-03'
  status: enriched
  artifacts_added: 21
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

CarChat API — frequently asked questions

Does CarChat have an API?

Yes. APIs.io lists 5 APIs from CarChat, including CarChat Dealers API, CarChat Inventory API and CarChat Lead API, and 2 more.

Is there an OpenAPI specification for the CarChat API?

Yes. APIs.io indexes 5 OpenAPI specifications for CarChat, each linked for download from this page.

Does CarChat have an MCP server?

Yes. APIs.io lists 1 MCP server for CarChat: Remote MCP server at carchat.io.

Is the CarChat API ready for AI agents?

CarChat has a Kin Score of 22.0 out of 100 (emerging) and an Agent Readiness score of 25.0 (agent-aware), scored by API Evangelist on 2026-11-06.

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