Crunchbase

Crunchbase is a leading source of private and public company, funding, and investor data - firmographics, funding rounds, acquisitions, investors, people, events, and AI-generated predictions and insights 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 Entity Lookup, Search, Autocomplete, and Deleted Entities across 43 entity collections, and is published as six package-scoped OpenAPI 3.0.1 documents - Firmographic, Core Financials, Advanced Financials, Insights, Predictions, and Predictions & Insights - discoverable through an RFC 9727 api-catalog at data.crunchbase.com. Crunchbase also ships a first-party remote MCP server at mcp.crunchbase.com over Streamable HTTP with fourteen documented tools, authenticated with OAuth 2.1 + PKCE and sold as per-user MCP seats. The REST API is read-only and authenticated with a single account-level API key (user_key query parameter or X-cb-user-key header); which of the six packages that key is provisioned against determines which operations it can call. Access is subscription-gated with no published pricing - the full API requires a Crunchbase Enterprise or Applications licence, with a reduced Basic API for Crunchbase Basic plan holders.

Crunchbase publishes 5 APIs on the APIs.io network, including Autocomplete API, Deleted Entities API, Entity API, and 2 more. Tagged areas include Company Data, Web Intelligence, Funding Data, Firmographics, and B2B Data.

Crunchbase’s developer surface includes documentation, API reference, getting-started guide, engineering blog, pricing, signup flow, changelog, and 37 more developer resources.

🌐 Visit website 📡 Source on GitHub

47.0/100 developing ▬ flat Agent 47/100 agent ready Front door AI 4/6 moderate saas Full breakdown ↓
scored 2026-09-21 · rubric v0.22.0

AccessPaid

6 APIs 1 MCP Servers

Company Data Web Intelligence Funding Data Firmographics B2B Data investor-data Reference Data Private Markets Predictions Market Insights MCP Fortune 1000

Kin Score

Kin Score How this is scored →
scored 2026-09-21 · rubric v0.22.0

Composite quality — 47.0/100 · developing

Contract Quality 5.7 / 23

Developer Ergonomics 7.2 / 18

Access Clarity 15.2 / 18

Operational Transparency 7.1 / 12

Contract Governance 0.5 / 11

Discoverability 7.3 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 47/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

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 github.com/api-evangelist/crunchbase-data: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 6

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

Crunchbase MCP Server

First-party remote Model Context Protocol server over Streamable HTTP, exposing fourteen tools - five natural-language expert tools, four structured schema/lookup/search tools, ...

Crunchbase Autocomplete API

The Autocomplete API from Crunchbase — 1 operation(s) for autocomplete.

Crunchbase Deleted Entities API

The Deleted Entities API from Crunchbase — 2 operation(s) for deleted entities.

Crunchbase Entity API

The Entity API from Crunchbase — 60 operation(s) for entity.

Crunchbase Metadata API

The Metadata API from Crunchbase — 3 operation(s) for metadata.

Crunchbase Search API

The Search API from Crunchbase — 43 operation(s) for search.

Open Collections 6

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

API Collection

OPEN COLLECTION

Crunchbase Data API v4 Autocomplete API

OPEN COLLECTION

Crunchbase Data API v4 Autocomplete Deleted Entities API

OPEN COLLECTION

Crunchbase Data API v4 Autocomplete Entity Lookup API

OPEN COLLECTION

Crunchbase Data API v4 Autocomplete Search API

OPEN COLLECTION

Crunchbase Data API v4

OPEN COLLECTION

MCP Servers 1

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

Crunchbase

Crunchbase ships a first-party REMOTE MCP server at https://mcp.crunchbase.com over Streamable HTTP, authenticated with OAuth 2.1 + PKCE against the user's own Crunchbase accoun...

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Crunchbase Data Plans Pricing

8 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 3

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

Crunchbase Data Authentication

apiKey/oauth2 · 3 schemes

SECURITY

Crunchbase Data Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Crunchbase Data Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Crunchbase Data Scopes

2 scopes · authorizationCode

2 scopes

SCOPES

Agentic Access 1

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

Crunchbase Data Agentic Access

109 operations · 43 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

WellKnown

LLMsTxt

MCPServer

AgentSkill

AgenticAccess

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

ToolCrosswalk

ToolCrosswalk

Access & Security 6

Authentication, authorization, and security posture

Authentication

OAuthScopes

SecurityTxt

Security

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

HelpCenter

ChangeLog

ChangeLog

RateLimits

Commercial 5

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

FinOps

Company 4

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Blog

Blog

Other 7

Properties that don't map to a standard resource type

Overlay

Overlay

Overlay

Overlay

Overlay

Overlay

APICatalog

Scroll for all 7

Source (apis.yml)

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, events, and AI-generated predictions and insights 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 Entity Lookup, Search, Autocomplete, and Deleted Entities across 43 entity collections, and is published as six
  package-scoped OpenAPI 3.0.1 documents - Firmographic, Core Financials, Advanced Financials, Insights, Predictions, and
  Predictions & Insights - discoverable through an RFC 9727 api-catalog at data.crunchbase.com. Crunchbase also ships a first-party
  remote MCP server at mcp.crunchbase.com over Streamable HTTP with fourteen documented tools, authenticated with OAuth 2.1
  + PKCE and sold as per-user MCP seats. The REST API is read-only and authenticated with a single account-level API key (user_key
  query parameter or X-cb-user-key header); which of the six packages that key is provisioned against determines which operations
  it can call. Access is subscription-gated with no published pricing - the full API requires a Crunchbase Enterprise or Applications
  licence, with a reduced Basic API for Crunchbase Basic plan holders.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: sales-gated
  trial: false
  try_now: false
  public: false
  label: Paid · Contact sales
  confidence: high
  source:
  - plans
  - authentication
  - https://data.crunchbase.com/docs/using-the-api
  generated: '2026-08-14'
  method: searched
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
- Private Markets
- Predictions
- Market Insights
- MCP
- Fortune 1000
tags_raw:
- Company Data
- Web Intelligence
- Funding Data
- Firmographics
- B2B Data
- Investor Data
- Reference Data
- Private Markets
- Predictions
- Market Insights
- MCP
- Fortune 1000
created: '2026-07-11'
modified: '2026-08-14'
specificationVersion: '0.23'
apis:
- aid: crunchbase-data:crunchbase-data-mcp
  name: Crunchbase MCP Server
  description: 'First-party remote Model Context Protocol server over Streamable HTTP, exposing fourteen tools - five natural-language
    expert tools, four structured schema/lookup/search tools, four Crunchbase list tools and a metering utility. Authenticated
    with OAuth 2.1 + PKCE against the signed-in Crunchbase account and gated by a per-user MCP seat. Its surface is a superset
    of the REST API: ten of the fourteen tools have no public REST equivalent.'
  humanURL: https://data.crunchbase.com/docs/mcp-overview
  baseURL: https://mcp.crunchbase.com
  tags:
  - MCP
  - Company Data
  - Private Markets
  properties:
  - type: MCPServer
    url: mcp/crunchbase-data-mcp.yml
  - type: ToolCrosswalk
    url: mcp/crunchbase-data-tool-crosswalk.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs/mcp-overview
  - type: APIReference
    url: https://data.crunchbase.com/docs/tool-reference
  - type: GettingStarted
    url: https://data.crunchbase.com/docs/getting-started-with-mcp
  - type: OAuthScopes
    url: scopes/crunchbase-data-scopes.yml
- aid: crunchbase-data:crunchbase-data-autocomplete-api
  name: Crunchbase Autocomplete API
  description: The Autocomplete API from Crunchbase — 1 operation(s) for autocomplete.
  humanURL: https://data.crunchbase.com/docs/fundamentals
  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/fundamentals
  - type: APIReference
    url: https://data.crunchbase.com/reference
  - type: Documentation
    url: https://data.crunchbase.com/docs/insights
  - type: Documentation
    url: https://data.crunchbase.com/docs/predictions
  - type: DataModel
    url: data-model/crunchbase-data-data-model.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs/api-packages-overview
- aid: crunchbase-data:crunchbase-data-deleted-entities-api
  name: Crunchbase Deleted Entities API
  description: The Deleted Entities API from Crunchbase — 2 operation(s) for deleted entities.
  humanURL: https://data.crunchbase.com/docs/fundamentals
  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/fundamentals
  - type: APIReference
    url: https://data.crunchbase.com/reference
  - type: Documentation
    url: https://data.crunchbase.com/docs/insights
  - type: Documentation
    url: https://data.crunchbase.com/docs/predictions
  - type: DataModel
    url: data-model/crunchbase-data-data-model.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs/api-packages-overview
- aid: crunchbase-data:crunchbase-data-entity-api
  name: Crunchbase Entity API
  description: The Entity API from Crunchbase — 60 operation(s) for entity.
  humanURL: https://data.crunchbase.com/docs/fundamentals
  baseURL: https://api.crunchbase.com/v4/data
  tags:
  - Entity
  properties:
  - type: OpenAPI
    url: openapi/crunchbase-data-entity-api-openapi.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs/fundamentals
  - type: APIReference
    url: https://data.crunchbase.com/reference
  - type: Documentation
    url: https://data.crunchbase.com/docs/insights
  - type: Documentation
    url: https://data.crunchbase.com/docs/predictions
  - type: DataModel
    url: data-model/crunchbase-data-data-model.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs/api-packages-overview
- aid: crunchbase-data:crunchbase-data-metadata-api
  name: Crunchbase Metadata API
  description: The Metadata API from Crunchbase — 3 operation(s) for metadata.
  humanURL: https://data.crunchbase.com/docs/fundamentals
  baseURL: https://api.crunchbase.com/v4/data
  tags:
  - Metadata
  properties:
  - type: OpenAPI
    url: openapi/crunchbase-data-metadata-api-openapi.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs/fundamentals
  - type: APIReference
    url: https://data.crunchbase.com/reference
  - type: Documentation
    url: https://data.crunchbase.com/docs/insights
  - type: Documentation
    url: https://data.crunchbase.com/docs/predictions
  - type: DataModel
    url: data-model/crunchbase-data-data-model.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs/api-packages-overview
- aid: crunchbase-data:crunchbase-data-search-api
  name: Crunchbase Search API
  description: The Search API from Crunchbase — 43 operation(s) for search.
  humanURL: https://data.crunchbase.com/docs/fundamentals
  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/fundamentals
  - type: APIReference
    url: https://data.crunchbase.com/reference
  - type: Documentation
    url: https://data.crunchbase.com/docs/insights
  - type: Documentation
    url: https://data.crunchbase.com/docs/predictions
  - type: DataModel
    url: data-model/crunchbase-data-data-model.yml
  - type: Documentation
    url: https://data.crunchbase.com/docs/api-packages-overview
common:
- type: Overlay
  url: overlays/crunchbase-data-firmographic-overlay.yaml
- type: Overlay
  url: overlays/crunchbase-data-core-financials-overlay.yaml
- type: Overlay
  url: overlays/crunchbase-data-advanced-financials-overlay.yaml
- type: Overlay
  url: overlays/crunchbase-data-insights-overlay.yaml
- type: Overlay
  url: overlays/crunchbase-data-predictions-overlay.yaml
- type: Overlay
  url: overlays/crunchbase-data-predictions-insights-overlay.yaml
- type: Website
  url: https://www.crunchbase.com
- type: DeveloperPortal
  url: https://data.crunchbase.com/
- type: Documentation
  url: https://data.crunchbase.com/docs
- type: APIReference
  url: https://data.crunchbase.com/reference
- type: GettingStarted
  url: https://data.crunchbase.com/docs/welcome-to-crunchbase-data
- type: HelpCenter
  url: https://support.crunchbase.com/hc/en-us
- type: Blog
  url: https://about.crunchbase.com/blog/
- type: GitHubOrganization
  url: https://github.com/crunchbase
- type: LinkedIn
  url: https://www.linkedin.com/company/crunchbase
- type: Pricing
  url: https://about.crunchbase.com/pricing/
- type: SignUp
  url: https://about.crunchbase.com/products/crunchbase-api/
- type: TermsOfService
  url: https://about.crunchbase.com/terms-of-service/
- type: PrivacyPolicy
  url: https://about.crunchbase.com/privacy-policy/
- type: ChangeLog
  url: https://about.crunchbase.com/product-updates/
- type: ChangeLog
  url: changelog/crunchbase-data-changelog.yml
- type: Authentication
  url: authentication/crunchbase-data-authentication.yml
- type: OAuthScopes
  url: scopes/crunchbase-data-scopes.yml
- type: Conventions
  url: conventions/crunchbase-data-conventions.yml
- type: ErrorCatalog
  url: errors/crunchbase-data-problem-types.yml
- type: Lifecycle
  url: lifecycle/crunchbase-data-lifecycle.yml
- type: Conformance
  url: conformance/crunchbase-data-conformance.yml
- type: DataModel
  url: data-model/crunchbase-data-data-model.yml
- type: Packages
  url: packages/crunchbase-data-packages.yml
- type: WellKnown
  url: well-known/crunchbase-data-well-known.yml
- type: APICatalog
  url: well-known/crunchbase-data-api-catalog.json
- type: SecurityTxt
  url: well-known/crunchbase-data-security.txt
- type: Security
  url: https://www.crunchbase.com/.well-known/security-policy.html
- type: VulnerabilityDisclosure
  url: security/crunchbase-data-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/crunchbase-data-domain-security.yml
- type: LLMsTxt
  url: llms/crunchbase-data-llms.txt
- type: MCPServer
  url: mcp/crunchbase-data-mcp.yml
- type: ToolCrosswalk
  url: mcp/crunchbase-data-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
- type: AgenticAccess
  url: agentic-access/crunchbase-data-agentic-access.yml
- 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://www.crunchbase.com/blog
  name: Crunchbase Blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-14'
  status: enriched
  artifacts_added: 34
  pass: local-v1
  notes: 'Contract discovery win. The RFC 9727 api-catalog at https://data.crunchbase.com/.well-known/api-catalog indexes
    six first-party OpenAPI 3.0.1 documents (109 unique operations, every one with an operationId, summary, tags and 200/400/404/500
    responses); all six were fetched 200 and saved verbatim to openapi/. They replace the four hand-modelled 6-operation specs
    from the first round, which are archived under openapi/_superseded-modeled/. Also found: a first-party remote MCP server
    at https://mcp.crunchbase.com with 14 documented tools, a real llms.txt, an RFC 9116 security.txt with a Vulnerability
    Disclosure Program, and RFC 8414 + RFC 9728 OAuth metadata. Honest zeros recorded: no official SDK in any registry (all
    17 github.com/crunchbase repos are forks), no A2A agent card, no AsyncAPI or webhook surface, no status page, no trust
    center or named certifications, no sandbox, no CLI, no idempotency contract, and no published price for API or MCP access.
    The PostmanCollection and OpenCollection pointers from the previous round were dropped: those files were generated from
    the now-superseded modelled specs, and Crunchbase publishes no public Postman workspace.'

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