Crunchbase website screenshot

Crunchbase

Crunchbase is a business data platform tracking companies, investors, funding rounds, acquisitions, and IPOs across the global startup and private market ecosystem. Its REST API (v4) provides programmatic access to over 600 endpoints powering customer-facing products, workflow enrichment, and AI training data.

Crunchbase publishes 4 APIs on the APIs.io network, including Autocomplete API, Deletes API, Entities API, and 1 more. Tagged areas include Business Data, Funding, Investments, Startups, and Private Markets.

The Crunchbase catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Crunchbase’s developer surface includes authentication, documentation, signup flow, pricing, changelog, support, engineering blog, and 19 more developer resources.

61.3/100 strong ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumSelf serve⚡ Free to try
4 APIs
Business DataFundingInvestmentsStartupsPrivate MarketsFirmographics

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 61.3/100 · strong
Contract Quality 15.9 / 25
Developer Ergonomics 6.1 / 20
Commercial Clarity 16.8 / 20
Operational Transparency 6.8 / 13
Governance 8.3 / 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: 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

Type-ahead suggestions for entities.

Crunchbase Deletes API

Feeds of deleted entities for downstream sync.

Crunchbase Entities API

Entity lookup endpoints for organizations, people, funding rounds, acquisitions, and IPOs.

Crunchbase Search API

Full-text and faceted search across entity types.

Postman Collections 4

Ready-to-run Postman collections for exercising this provider's APIs.

Open Collections 1

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

Crunchbase API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Crunchbase Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Semantic Vocabularies 1

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

Crunchbase Context

18 classes · 9 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Crunchbase API Rules

5 rules · 4 warnings 1 info

SPECTRAL

Crunchbase API Rules

7 rules · 2 errors 5 warnings

SPECTRAL

JSON Schema 1

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

CrunchbaseOrganization

23 properties

JSON SCHEMA

Security Posture 3

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

Crunchbase Authentication

apiKey · 1 scheme

SECURITY

Crunchbase Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Crunchbase Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

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

Crunchbase Agentic Access

10 operations · 3 acting

10 operations · 3 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Documentation 3

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Build 2

SDKs, sample code, and the tooling you integrate with

Access & Security 4

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 4

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: crunchbase
url: https://raw.githubusercontent.com/api-evangelist/crunchbase/refs/heads/main/apis.yml
kind: company
name: Crunchbase
description: Crunchbase is a business data platform tracking companies, investors, funding rounds, acquisitions, and IPOs
  across the global startup and private market ecosystem. Its REST API (v4) provides programmatic access to over 600 endpoints
  powering customer-facing products, workflow enrichment, and AI training data.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · 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.png
tags:
- Business Data
- Funding
- Investments
- Startups
- Private Markets
- Firmographics
type: Index
access: 3rd-Party
specificationVersion: '0.19'
created: '2026-03-24'
modified: '2026-05-19'
apis:
- aid: crunchbase:crunchbase-autocomplete-api
  name: Crunchbase Autocomplete API
  description: Type-ahead suggestions for entities.
  humanURL: https://data.crunchbase.com/docs
  baseURL: https://api.crunchbase.com/api/v4
  tags:
  - Autocomplete
  properties:
  - type: OpenAPI
    url: openapi/crunchbase-autocomplete-api-openapi.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs
  - type: Authentication
    url: https://data.crunchbase.com/docs/authentication
  - type: RateLimits
    url: https://data.crunchbase.com/docs/rate-limiting
  - type: ChangeLog
    url: https://data.crunchbase.com/docs/changelog
  - type: JSONSchema
    url: json-schema/crunchbase-organization-schema.json
  - type: JSONLDContext
    url: json-ld/crunchbase-context.jsonld
- aid: crunchbase:crunchbase-deletes-api
  name: Crunchbase Deletes API
  description: Feeds of deleted entities for downstream sync.
  humanURL: https://data.crunchbase.com/docs
  baseURL: https://api.crunchbase.com/api/v4
  tags:
  - Deletes
  properties:
  - type: OpenAPI
    url: openapi/crunchbase-deletes-api-openapi.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs
  - type: Authentication
    url: https://data.crunchbase.com/docs/authentication
  - type: RateLimits
    url: https://data.crunchbase.com/docs/rate-limiting
  - type: ChangeLog
    url: https://data.crunchbase.com/docs/changelog
  - type: JSONSchema
    url: json-schema/crunchbase-organization-schema.json
  - type: JSONLDContext
    url: json-ld/crunchbase-context.jsonld
- aid: crunchbase:crunchbase-entities-api
  name: Crunchbase Entities API
  description: Entity lookup endpoints for organizations, people, funding rounds, acquisitions, and IPOs.
  humanURL: https://data.crunchbase.com/docs
  baseURL: https://api.crunchbase.com/api/v4
  tags:
  - Entities
  properties:
  - type: OpenAPI
    url: openapi/crunchbase-entities-api-openapi.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs
  - type: Authentication
    url: https://data.crunchbase.com/docs/authentication
  - type: RateLimits
    url: https://data.crunchbase.com/docs/rate-limiting
  - type: ChangeLog
    url: https://data.crunchbase.com/docs/changelog
  - type: JSONSchema
    url: json-schema/crunchbase-organization-schema.json
  - type: JSONLDContext
    url: json-ld/crunchbase-context.jsonld
- aid: crunchbase:crunchbase-search-api
  name: Crunchbase Search API
  description: Full-text and faceted search across entity types.
  humanURL: https://data.crunchbase.com/docs
  baseURL: https://api.crunchbase.com/api/v4
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/crunchbase-search-api-openapi.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs
  - type: Authentication
    url: https://data.crunchbase.com/docs/authentication
  - type: RateLimits
    url: https://data.crunchbase.com/docs/rate-limiting
  - type: ChangeLog
    url: https://data.crunchbase.com/docs/changelog
  - type: JSONSchema
    url: json-schema/crunchbase-organization-schema.json
  - type: JSONLDContext
    url: json-ld/crunchbase-context.jsonld
features:
- name: Entity Lookups
  description: Retrieve organizations, people, funding rounds, acquisitions, and IPOs by UUID or permalink.
- name: Structured Search
  description: POST-based search with field, operator, and value clauses across all entity types.
- name: Autocomplete
  description: Type-ahead lookups for entities by name across collections.
- name: Deleted Entity Feeds
  description: Track removed entities for incremental data synchronization.
- name: Field Selection
  description: Request specific fields and related cards (founders, investments, headquarters) per entity.
- name: 600+ Endpoints
  description: Round-by-round funding data, firmographics, and predictive intelligence covering private markets.
- name: API Key Authentication
  description: Header-based API key auth using X-cb-user-key.
- name: Rate Limited
  description: Per-key rate limits documented at data.crunchbase.com/docs/rate-limiting.
useCases:
- name: Market Intelligence
  description: Analysts track competitor funding, growth, and acquisition activity.
- name: Investor Research
  description: VCs and PE firms research portfolio companies, comparable rounds, and lead investors.
- name: Sales Intelligence and ABM
  description: Sales teams enrich CRM records with firmographics, funding, and headcount data.
- name: Startup Discovery
  description: Accelerators and corp-dev teams search for organizations matching specific criteria.
- name: AI Model Training
  description: Foundation model and analytics teams use Crunchbase data to train and evaluate models.
- name: Customer-Facing Products
  description: SaaS products embed Crunchbase data into dashboards, lead lists, and signals.
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/crunchbase/overview
- type: AgenticAccess
  url: agentic-access/crunchbase-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/crunchbase-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/crunchbase-domain-security.yml
- type: Authentication
  url: authentication/crunchbase-authentication.yml
- url: https://www.crunchbase.com/
  name: Crunchbase Website
  type: Website
- url: https://data.crunchbase.com/docs
  name: API Documentation
  type: Documentation
- url: https://www.crunchbase.com/register
  name: Sign Up
  type: Signup
- url: https://www.crunchbase.com/login
  name: Login
  type: Login
- url: https://www.crunchbase.com/pricing
  name: Pricing
  type: Pricing
- url: https://data.crunchbase.com/docs/authentication
  name: Authentication
  type: Authentication
- url: https://data.crunchbase.com/docs/rate-limiting
  name: Rate Limiting
  type: RateLimits
- url: https://data.crunchbase.com/docs/changelog
  name: Changelog
  type: ChangeLog
- url: https://support.crunchbase.com/
  name: Support
  type: Support
- url: https://www.crunchbase.com/terms-of-service
  name: Terms of Service
  type: TermsOfService
- url: https://www.crunchbase.com/privacy-policy
  name: Privacy Policy
  type: PrivacyPolicy
- url: https://www.crunchbase.com/blog
  name: Crunchbase Blog
  type: Blog
- url: https://twitter.com/crunchbase
  name: Crunchbase on X (Twitter)
  type: X
- url: https://www.linkedin.com/company/crunchbase
  name: Crunchbase on LinkedIn
  type: LinkedIn
- url: https://www.facebook.com/crunchbase
  name: Crunchbase on Facebook
  type: Facebook
- url: https://github.com/crunchbase
  name: Crunchbase on GitHub
  type: GitHub
- url: openapi/crunchbase-openapi.yml
  type: OpenAPI
- url: json-schema/crunchbase-organization-schema.json
  type: JSONSchema
- url: json-ld/crunchbase-context.jsonld
  type: JSONLDContext
- url: rules/crunchbase-rules.yml
  type: SpectralRules
- url: vocabulary/crunchbase-vocabulary.yml
  type: Vocabulary
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com