ACV Auctions

ACV Auctions is a digital wholesale marketplace for the automotive industry, operating the leading online platform for dealer-to-dealer used-vehicle auctions across the United States. Franchise and independent dealers source and sell inventory through daily online auctions backed by third-party vehicle inspections, detailed condition reports, and the company's data and analytics products. ACV also offers complementary services including vehicle transportation, dealer floor-plan financing through ACV Capital, and inventory-management and pricing tools. The company is publicly traded and headquartered in Buffalo, New York. It does not currently publish a public developer API or developer portal; this profile captures its public identity and security posture.

ACV Auctions is listed with 1 API on the APIs.io network. Tagged areas include Company, Vertical Software, Automotive, Marketplace, and Auctions.

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

ACV Auctions’ developer surface includes support, engineering blog, pricing, and 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

22.8/100 emerging ▬ flat Agent 9/100 agent aware Front door AI 1/6 silent Heartbeat 56/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API 1 Agent Skills

Company Vertical Software Automotive Marketplace Auctions Used Vehicles WholesaleDealer Services

Kin Score

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

Composite quality — 22.8/100 · emerging

Contract Quality 1.4 / 21

Developer Ergonomics 3.5 / 17

Access Clarity 6.5 / 17

Operational Transparency 0.3 / 11

Contract Governance 2.2 / 10

Discoverability 5.0 / 9

Regulatory Posture 2.8 / 15

Agent readiness — 9/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 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 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 Contract +18 pts — api_specs includes an OpenAPI document
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)
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)

9 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 6.7 — up to +23.3 composite points
Developer Ergonomics scores 20.7 — up to +15.9 composite points
Operational Transparency scores 2.6 — up to +12.7 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/acv-auctions/apis.yml: open an issue on github.com/api-evangelist/acv-auctions 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 →

APIs 1

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

Client Documentation Hub

API for the client documentation hub providing health endpoints.

Agent Skills 1

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

acv-auctions-health

AGENT SKILL

Semantic Vocabularies 1

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

Acv Auctions Context

1 classes · 2 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

ACV Auctions API Rules

11 rules · 9 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.

Acv Auctions Openapi Overlay

0 actions · update

DERIVED

Security Posture 1

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

Acv Auctions Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Acv Auctions Agentic Access

3 operations

3 operations · 0 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

DeveloperPortal

DeveloperPortal

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Postman

Postman

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Pricing

Pricing

Company 3

The organization behind the API

Newsroom

Newsroom

Website

Website

Blog

Blog

Other 4

Properties that don't map to a standard resource type

Overlay

Hosts

Vendors

Leadership

Source (apis.yml)

aid: acv-auctions
name: ACV Auctions
description: ACV Auctions is a digital wholesale marketplace for the automotive industry, operating the leading online platform
  for dealer-to-dealer used-vehicle auctions across the United States. Franchise and independent dealers source and sell inventory
  through daily online auctions backed by third-party vehicle inspections, detailed condition reports, and the company's data
  and analytics products. ACV also offers complementary services including vehicle transportation, dealer floor-plan financing
  through ACV Capital, and inventory-management and pricing tools. The company is publicly traded and headquartered in Buffalo,
  New York. It does not currently publish a public developer API or developer portal; this profile captures its public identity
  and security posture.
url: https://raw.githubusercontent.com/api-evangelist/acv-auctions/refs/heads/main/apis.yml
x-type: company
x-source: bessemer-venture-partners-portfolio
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-27 (modular-v1; was portfolio-lead)
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: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
image: https://cdn.prod.website-files.com/61df0075e6ac6a4373114030/6214df2c7223d937aad401a3_Open%20Graph%20Image.jpg
tags:
- Company
- Vertical Software
- Automotive
- Marketplace
- Auctions
- Used Vehicles
- Wholesale
- Dealer Services
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/acv-auctions-agentic-access.yml
- type: Spectral
  url: rules/acv-auctions-rules.yml
- type: JSONLD
  url: json-ld/acv-auctions-context.jsonld
- type: Vocabulary
  url: vocabulary/acv-auctions-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/acv-auctions-data-model.yml
- type: ErrorCatalog
  url: errors/acv-auctions-problem-types.yml
- type: Conformance
  url: conformance/acv-auctions-conformance.yml
- type: Overlay
  url: overlays/acv-auctions-openapi-overlay.yaml
- type: Hosts
  url: hosts/acv-auctions-hosts.yml
- type: Vendors
  url: vendors/acv-auctions-vendors.yml
- type: Newsroom
  url: https://www.acvauctions.com/category/press
- type: Leadership
  url: https://www.acvauctions.com/leadership/tim-fox
- type: Website
  url: https://www.acvauctions.com
- type: GitHubOrganization
  url: https://github.com/acv-auctions
- type: Login
  url: https://app.acvauctions.com/login
- type: Support
  url: https://www.acvauctions.com/support
- type: Blog
  url: https://www.acvauctions.com/blog
- type: TermsOfService
  url: https://www.acvauctions.com/legal/terms-of-service
- type: PrivacyPolicy
  url: https://www.acvauctions.com/legal/privacy-policy
- type: DomainSecurity
  url: security/acv-auctions-domain-security.yml
- type: DeveloperPortal
  url: https://app.acvauctions.com
- type: Pricing
  url: https://www.acvauctions.com/pricing
- type: Postman
  url: https://www.postman.com/acv-auctions
apis:
- name: Client Documentation Hub
  description: API for the client documentation hub providing health endpoints.
  humanURL: https://client-documentation-hub.acvauctions.com
  baseURL: null
  properties: null
  aid: acv-auctions:client-documentation-hub
x-parent: acv
x-relationship: product
x-enrichment:
  date: '2026-10-27'
  status: nochange
  artifacts_added: 0
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

ACV Auctions API — frequently asked questions

Does ACV Auctions have an API?

Yes. APIs.io lists 1 API from ACV Auctions, including Client Documentation Hub.

Is the ACV Auctions API ready for AI agents?

ACV Auctions has a Kin Score of 22.8 out of 100 (emerging) and an Agent Readiness score of 8.6 (agent-aware), scored by API Evangelist on 2026-11-06.

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