Crunchbase website screenshot

Crunchbase

Crunchbase is a leading source of private and public company, funding, and investor data - firmographics, funding rounds, acquisitions, investors, people, and events across the global startup and business landscape. The Crunchbase Data API (REST v4, base https://api.crunchbase.com/v4/data) exposes this graph programmatically through four surfaces - Entity Lookup, Search, Autocomplete, and Deleted Entities (deltas) - for web intelligence, reference data, market research, sales and investment prospecting, and enrichment use cases. It is a read-only RESTful service authenticated with an API key (user_key query parameter or X-cb-user-key header). Access is subscription-gated: the full API requires a Crunchbase Enterprise or Applications license, with a reduced Basic API available to Crunchbase Basic plan holders.

Crunchbase publishes 4 APIs on the APIs.io network, including Autocomplete API, Deleted Entities API, Entity Lookup API, and 1 more. Tagged areas include Company Data, Web Intelligence, Funding Data, Firmographics, and B2B Data.

Crunchbase’s developer surface includes authentication, documentation, signup flow, engineering blog, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
41.7/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-08-03 · rubric v0.9
AccessPaidSelf serve
4 APIs
Company DataWeb IntelligenceFunding DataFirmographicsB2B DataInvestor DataReference DataFortune 1000

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-03 · rubric v0.9
Composite quality — 41.7/100 · thin
Contract Quality 15.3 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 10.5 / 20
Operational Transparency 4.1 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 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
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/crunchbase-data: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 4

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

Crunchbase Autocomplete API

Resolve a query string to matching entity identifiers.

Crunchbase Deleted Entities API

Detect entities removed from the Crunchbase Graph (deltas).

Crunchbase Entity Lookup API

Retrieve a single entity (and its related cards) by UUID or permalink.

Crunchbase Search API

Query a collection with field filters and keyset pagination.

Open Collections 1

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

Crunchbase Data API v4

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Crunchbase Data Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Crunchbase Data Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Crunchbase Data Finops

FINOPS

Security Posture 2

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

Crunchbase Data Authentication

apiKey · 2 schemes

SECURITY

Crunchbase Data Domain Security

no transport/DNS hardening detected

SECURITY

Agentic Access 1

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

Crunchbase Data Agentic Access

6 operations · 1 acting

6 operations · 1 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp
SignUp

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: crunchbase-data
url: https://raw.githubusercontent.com/api-evangelist/crunchbase-data/refs/heads/main/apis.yml
name: Crunchbase
kind: company
description: 'Crunchbase is a leading source of private and public company, funding, and investor data - firmographics, funding
  rounds, acquisitions, investors, people, and events across the global startup and business landscape. The Crunchbase Data
  API (REST v4, base https://api.crunchbase.com/v4/data) exposes this graph programmatically through four surfaces - Entity
  Lookup, Search, Autocomplete, and Deleted Entities (deltas) - for web intelligence, reference data, market research, sales
  and investment prospecting, and enrichment use cases. It is a read-only RESTful service authenticated with an API key (user_key
  query parameter or X-cb-user-key header). Access is subscription-gated: the full API requires a Crunchbase Enterprise or
  Applications license, with a reduced Basic API available to Crunchbase Basic plan holders.'
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/crunchbase-data.png
tags:
- Company Data
- Web Intelligence
- Funding Data
- Firmographics
- B2B Data
- Investor Data
- Reference Data
- Fortune 1000
created: '2026-07-11'
modified: '2026-07-11'
specificationVersion: '0.19'
apis:
- aid: crunchbase-data:crunchbase-data-autocomplete-api
  name: Crunchbase Autocomplete API
  description: Resolve a query string to matching entity identifiers.
  humanURL: https://data.crunchbase.com/docs/using-entity-lookup-apis
  baseURL: https://api.crunchbase.com/v4/data
  tags:
  - Autocomplete
  properties:
  - type: OpenAPI
    url: openapi/crunchbase-data-autocomplete-api-openapi.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-entity-lookup-apis
  - type: APIReference
    url: https://data.crunchbase.com/docs/using-the-api
  - type: PostmanCollection
    url: collections/crunchbase-data.postman_collection.json
  - type: OpenCollection
    url: collections/crunchbase-data.opencollection.json
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-search-apis
  - type: Documentation
    url: https://data.crunchbase.com/docs/examples-search-api
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-autocomplete-api
  - type: Documentation
    url: https://data.crunchbase.com/docs/examples-autocomplete-api
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-deleted-entities-api
- aid: crunchbase-data:crunchbase-data-deleted-entities-api
  name: Crunchbase Deleted Entities API
  description: Detect entities removed from the Crunchbase Graph (deltas).
  humanURL: https://data.crunchbase.com/docs/using-entity-lookup-apis
  baseURL: https://api.crunchbase.com/v4/data
  tags:
  - Deleted Entities
  properties:
  - type: OpenAPI
    url: openapi/crunchbase-data-deleted-entities-api-openapi.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-entity-lookup-apis
  - type: APIReference
    url: https://data.crunchbase.com/docs/using-the-api
  - type: PostmanCollection
    url: collections/crunchbase-data.postman_collection.json
  - type: OpenCollection
    url: collections/crunchbase-data.opencollection.json
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-search-apis
  - type: Documentation
    url: https://data.crunchbase.com/docs/examples-search-api
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-autocomplete-api
  - type: Documentation
    url: https://data.crunchbase.com/docs/examples-autocomplete-api
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-deleted-entities-api
- aid: crunchbase-data:crunchbase-data-entity-lookup-api
  name: Crunchbase Entity Lookup API
  description: Retrieve a single entity (and its related cards) by UUID or permalink.
  humanURL: https://data.crunchbase.com/docs/using-entity-lookup-apis
  baseURL: https://api.crunchbase.com/v4/data
  tags:
  - Entity Lookup
  properties:
  - type: OpenAPI
    url: openapi/crunchbase-data-entity-lookup-api-openapi.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-entity-lookup-apis
  - type: APIReference
    url: https://data.crunchbase.com/docs/using-the-api
  - type: PostmanCollection
    url: collections/crunchbase-data.postman_collection.json
  - type: OpenCollection
    url: collections/crunchbase-data.opencollection.json
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-search-apis
  - type: Documentation
    url: https://data.crunchbase.com/docs/examples-search-api
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-autocomplete-api
  - type: Documentation
    url: https://data.crunchbase.com/docs/examples-autocomplete-api
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-deleted-entities-api
- aid: crunchbase-data:crunchbase-data-search-api
  name: Crunchbase Search API
  description: Query a collection with field filters and keyset pagination.
  humanURL: https://data.crunchbase.com/docs/using-entity-lookup-apis
  baseURL: https://api.crunchbase.com/v4/data
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/crunchbase-data-search-api-openapi.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-entity-lookup-apis
  - type: APIReference
    url: https://data.crunchbase.com/docs/using-the-api
  - type: PostmanCollection
    url: collections/crunchbase-data.postman_collection.json
  - type: OpenCollection
    url: collections/crunchbase-data.opencollection.json
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-search-apis
  - type: Documentation
    url: https://data.crunchbase.com/docs/examples-search-api
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-autocomplete-api
  - type: Documentation
    url: https://data.crunchbase.com/docs/examples-autocomplete-api
  - type: Documentation
    url: https://data.crunchbase.com/docs/using-deleted-entities-api
common:
- type: AgenticAccess
  url: agentic-access/crunchbase-data-agentic-access.yml
- type: Authentication
  url: authentication/crunchbase-data-authentication.yml
- type: DomainSecurity
  url: security/crunchbase-data-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/crunchbase
- type: Website
  url: https://www.crunchbase.com
- type: Documentation
  url: https://data.crunchbase.com/docs
- type: SignUp
  url: https://about.crunchbase.com/crunchbase-api-application-form/
- type: Plans
  url: plans/crunchbase-data-plans-pricing.yml
- type: RateLimits
  url: rate-limits/crunchbase-data-rate-limits.yml
- type: FinOps
  url: finops/crunchbase-data-finops.yml
- url: https://about.crunchbase.com/blog/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
Where this information came from

This is an independent, third-party profile of Crunchbase, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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