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Crunchbase Metadata API

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

Crunchbase Metadata API is one of 10 APIs that Crunchbase publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Metadata. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 3 operations across 3 paths, and defines 1 schema. It is described by OpenAPI 3.2.0, at version 1.1.0.

Requests are made against a single base URL, https://api.crunchbase.com/v4.

3 operations 3 paths 1 schemas 3 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.1.0
Base URL
https://api.crunchbase.com/v4/data
Authentication
API Key
Terms of Service
Resource Areas
1

Authentication & Security 1

Crunchbase Metadata API declares 1 security scheme for authenticating requests. An API key is passed in the header as X-cb-user-key (ApiKeyAuthHeader). By default, every request must be authenticated.

Paths & Operations 3

Across 3 paths, the API surfaces 3 operations — 3 GET. Each is listed below with its method, path, parameters, and response codes.

Metadata 3
GET
/md/applications/crunchbase/openapi.yaml
Retrieve OpenAPI specification document in yaml format
getOpenApiSpecYaml → 200400500
GET
/md/applications/crunchbase/openapi.json
Retrieve OpenAPI specification document in json format
getOpenApiSpecJson → 200400500
GET
/md/applications/crunchbase/fields
Returns the list of fields for collections with type and description
getFieldsMetadata 1 param → 200400500

Schemas 1

The contract defines 1 schema that model the data the API accepts and returns. The most detailed is Errors (1 property). Each schema is shown below with its type and property counts.

Errors
object
Developer friendly error message
1 property

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

crunchbase-data-metadata-api-openapi.yml Raw ↑

Other APIs Crunchbase publishes across the network.

Crunchbase MCP Server
Crunchbase Autocomplete API
Crunchbase Deleted Entities API
Crunchbase Entity API
Crunchbase Search API
Crunchbase Autocomplete API
Crunchbase Deletes API
Crunchbase Entities API
Crunchbase Search API
Where this information came from

This is an independent, third-party profile of Crunchbase Metadata API, 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.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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