Crunchbase API

Name: Crunchbase API API
Brand: Crunchbase API
Availability: InStock

★ Only Publicly Available OpenAPI DocumentData EnrichmentCompany DataapiKey15 EndpointsREST

For Agents

Look up companies, people, funding rounds, and investments on Crunchbase, plus run faceted searches and autocomplete queries against the v4 dataset.

Quickstart

Get started with Crunchbase API in minutes using your preferred integration method.

# Add to your MCP client config (Claude Desktop, Cursor, Windsurf)
{
  "jentic": {
    "url": "https://api.jentic.com/mcp",
    "auth": "oauth"
  }
}

# Then ask your agent:
"find company funding history"

# → Jentic returns the GET /events tool with parameter schema, agent executes.

Capabilities

What an agent can do with Crunchbase API API.

Look up an organisation, person, funding round, acquisition, investment, event, or fund by Crunchbase entity ID

Run faceted searches over organisations, people, funding rounds, acquisitions, investments, and funds with structured query bodies

Autocomplete entity names for type-ahead UI components

Track deleted entities to keep a downstream cache or CRM in sync

GET STARTED

Start building with Crunchbase API API

Explore with Jentic

View OpenAPI Document

Jentic publishes the only available OpenAPI document for Crunchbase API, keeping it validated and agent-ready.

Jentic publishes the only available OpenAPI specification for Crunchbase API, keeping it validated and agent-ready. The Crunchbase REST API provides firmographic, financial, and relationship data on organisations, people, funding rounds, acquisitions, investments, events, and funds. The 15 endpoints cover entity lookups by ID, faceted search across each entity type, autocomplete, and deleted-entity tracking. Authentication uses an API key delivered either in the X-cb-user-key header or as a user_key query parameter.

Use Cases

Patterns agents use Crunchbase API API for, with concrete tasks.

★ Sales Account Research

Pull firmographic context (headcount, location, funding stage, last raise) on a target list of accounts before an outbound sales sequence. Crunchbase's organisation lookup and search endpoints return structured fields ready to populate a CRM.

POST to /data/searches/organizations with a filter for funding_stage=series_b and location_identifier matching 'United States', then enrich each result via GET /data/entities/organizations/{entity_id}.

Investor and Portfolio Mapping

Build a network map of investors, funds, and the companies they have backed by walking funding-round, investment, and fund entities. Crunchbase exposes the relationship edges directly so the agent does not have to scrape secondary sources.

POST /data/searches/funding-rounds with a filter for investor_identifiers containing the target VC, then GET /data/entities/funding-rounds/{entity_id} for each row to retrieve full investor and amount detail.

M&A and Deal Flow Tracking

Monitor acquisitions and large funding events in target sectors by polling search endpoints with date filters, then resolving each acquisition or funding round to full detail. Useful for competitive intelligence and deal-team briefings.

POST /data/searches/acquisitions filtering announced_on within the last 30 days for a target industry, then GET /data/entities/acquisitions/{entity_id} for each match to capture buyer, target, and amount.

Type-ahead Company Picker

Power a type-ahead UI in an internal tool by calling the autocomplete endpoint as the user types and resolving the chosen suggestion to its full organisation record on selection. Keeps lookups fast and reduces the size of the search payload.

Call GET /data/autocompletes with the user's partial input and entity_def_ids=organization, then on selection call GET /data/entities/organizations/{entity_id} for full detail.

Agent-Driven Company Intelligence

Allow an AI agent to answer ad-hoc analyst questions ('How much has this company raised?', 'Who else did the Series A?') by routing through Jentic so the API key stays in the vault and the agent only needs to express its intent.

Search Jentic for 'find company funding history', load the lookup-organization operation, and execute it with the company's Crunchbase entity ID.

Key Endpoints

15 endpoints — jentic publishes the only available openapi specification for crunchbase api, keeping it validated and agent-ready.

METHOD

PATH

DESCRIPTION

GET

/data/entities/organizations/{entity_id}

Look up an organisation by ID

GET

/data/entities/people/{entity_id}

Look up a person by ID

POST

/data/searches/organizations

Faceted search over organisations

POST

/data/searches/funding-rounds

Search funding rounds

POST

/data/searches/acquisitions

Search acquisitions

GET

/data/autocompletes

Autocomplete entity names

GET

/data/deleted_entities

Retrieve recently deleted entities

GET

/data/entities/organizations/{entity_id}

Look up an organisation by ID

GET

/data/entities/people/{entity_id}

Look up a person by ID

POST

/data/searches/organizations

Faceted search over organisations

POST

/data/searches/funding-rounds

Search funding rounds

POST

/data/searches/acquisitions

Search acquisitions

Why though Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

Crunchbase API keys are stored encrypted in the Jentic vault. Agents never see the raw key — Jentic injects it into the X-cb-user-key header at execution time.

Intent-based discovery

Agents search Jentic by intent (e.g. 'find company funding history') and Jentic returns the matching lookup or search operation along with its parameter schema.

Time to first call

Direct integration: 1-2 days to wire the search query body, pagination, and rate-limit handling. Through Jentic: minutes — search, load, execute.

Related APIs

Alternatives and complements available in the Jentic catalogue.

Complementary

Crunchbase Main

Companion Crunchbase surface published under the main slug.

Choose the main Crunchbase entry for any operations not covered by the v4 entity-lookup and search surface.

Alternative

Crustdata API

Alternative company and people enrichment dataset.

Pick Crustdata when the agent needs a different licensing tier or coverage profile than Crunchbase offers.

Complementary

Cruise Control API

Outbound review-request automation that can use Crunchbase-enriched contacts.

Pair after Crunchbase enrichment when the agent needs to actually message the contact.

FAQs

Specific to using Crunchbase API API through Jentic.

Why is there no official OpenAPI spec for Crunchbase API?

Crunchbase does not publish an OpenAPI specification. Jentic generates and maintains this spec so that AI agents and developers can call Crunchbase API via structured tooling. It is validated against the live API and kept up to date. Get started at https://app.jentic.com/sign-up.

What authentication does the Crunchbase API use?

The API uses an API key, passed either in the X-cb-user-key request header or as the user_key query parameter. Through Jentic the key is stored encrypted in the vault so the agent never receives its raw value.

Can I search Crunchbase for companies by funding stage with this API?

Yes. POST a search query body to /data/searches/organizations including a funding_stage filter and any other facet filters (location, industry, headcount). The response returns matching organisation entities that can be expanded via /data/entities/organizations/{entity_id}.

How do I retrieve a company's full funding history through the Crunchbase API?

First look up the organisation via GET /data/entities/organizations/{entity_id}, then call POST /data/searches/funding-rounds filtering on funded_organization_identifier to retrieve every round attached to that company.

What are the rate limits for the Crunchbase API?

The OpenAPI specification does not document numeric rate limits. Crunchbase enforces tier-dependent quotas — review your contract with Crunchbase API Support (api@crunchbase.com) and watch for HTTP 429 responses.

How do I look up a company through Jentic?

Run pip install jentic, search 'find company funding data', load the lookup-organization operation, and execute it with the Crunchbase entity ID. Jentic resolves the API key automatically from the vault.