The Companies API
The Companies API is a company data and enrichment platform offering programmatic access to firmographic, technographic, and web-intelligence data on 50M+ companies. Its REST API (base https://api.thecompaniesapi.com, all resources under /v2) covers company search and segmentation, company enrichment by domain, email, or social profile, similar-company lookup, industry and technology reference data, location reference data, saved lists, and asynchronous bulk actions. Requests are authenticated with an API token passed in the Authorization header, billing is credit-based, and the full OpenAPI 3.1 description is published at /v2/openapi.
The Companies API publishes 12 API contracts indexed on the APIs.io network, including Actions API, Analytics API, Companies API, and 9 more. Tagged areas include Company Data, Data Enrichment, Firmographics, Web Intelligence, and B2B Data.
The The Companies API catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.
The Companies API’s developer surface includes authentication, documentation, changelog, API reference, getting-started guide, support, pricing, and 27 more developer resources.
What this lets a business do 1
Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →
Kin Score
Markets this provider is in provisional
The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.
| Market | Position | Depth | Registered MCP server | Declares compatibility |
|---|---|---|---|---|
| Official SDKs on Packagist, pub.dev and Hex | distribution | 28.7 | - | - |
Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
Standards implemented 1
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
APIs 12
Individual APIs this provider publishes, each with its own machine-readable definition.
The Companies API Actions API
The actions API from The Companies API — 2 operation(s) for actions.
The Companies API Analytics API
The analytics API from The Companies API — 2 operation(s) for analytics.
The Companies API Companies API
The companies API from The Companies API — 13 operation(s) for companies.
The Companies API Industries API
The industries API from The Companies API — 2 operation(s) for industries.
The Companies API Job Titles API
The job-titles API from The Companies API — 1 operation(s) for job-titles.
The Companies API Lists API
The lists API from The Companies API — 5 operation(s) for lists.
The Companies API Locations API
The locations API from The Companies API — 5 operation(s) for locations.
The Companies API Prompts API
The prompts API from The Companies API — 4 operation(s) for prompts.
The Companies API Teams API
The teams API from The Companies API — 1 operation(s) for teams.
The Companies API Technologies API
The technologies API from The Companies API — 1 operation(s) for technologies.
The Companies API Users API
The users API from The Companies API — 1 operation(s) for users.
The Companies API Utilities API
The utilities API from The Companies API — 2 operation(s) for utilities.
Scroll for all 12
Open Collections 13
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
The Companies actions API
OPEN COLLECTIONThe Companies actions analytics API
OPEN COLLECTIONThe actions companies API
OPEN COLLECTIONThe Companies actions industries API
OPEN COLLECTIONThe Companies actions job-titles API
OPEN COLLECTIONThe Companies actions lists API
OPEN COLLECTIONThe Companies actions locations API
OPEN COLLECTIONThe Companies actions prompts API
OPEN COLLECTIONThe Companies actions teams API
OPEN COLLECTIONThe Companies actions technologies API
OPEN COLLECTIONThe Companies actions users API
OPEN COLLECTIONThe Companies actions utilities API
OPEN COLLECTIONThe Companies API
OPEN COLLECTIONScroll for all 13
Agent Skills 4
Packaged agent skills for driving this provider's APIs from an AI assistant.
Build, size and page a company segment
AGENT SKILLCreate and maintain saved company lists
AGENT SKILLRun bulk work through the Actions queue
AGENT SKILLThe Companies API pricing
Prices published by The Companies API, read 2026-10-28 from www.thecompaniesapi.com/pricing.
| Plan | Price |
|---|---|
| Startup | $95/ month Includes: 50000 credits per month |
| Scaleup | $295/ month Includes: 250000 credits per month |
| Enterprise | $595/ month Includes: 500000 credits per month |
Plan details, limits and sources →
Rate limits
- Requests Per Second (Startup): 50/sec requests
- Requests Per Second (Scaleup): 250/sec requests
- Requests Per Second (Enterprise): 1000/sec requests
Billed by: credits · FinOps profile →
Pricing Plans 2
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Thecompaniesapi Rate Limits
RATE LIMITSService Levels 1
Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.
FinOps 1
Cost, billing, and metering signals for API financial operations.
Thecompaniesapi Finops
FINOPSEvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Thecompaniesapi Webhooks
ASYNCAPISpectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
The Companies API API Rules
SPECTRALOpenAPI Overlays 12
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
Scroll for all 12
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 3
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 3
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 6
Pagination, idempotency, versioning, errors, and events
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 6
Status, limits, changes, and where to get help
Commercial 5
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 1
Properties that don't map to a standard resource type
Source (apis.yml)
The Companies API — frequently asked questions
Does The Companies API have an API?
Yes. APIs.io lists 12 APIs from The Companies API, including The Companies API Actions API, The Companies API Analytics API and The Companies API Companies API, and 9 more.
Is there an OpenAPI specification for the The Companies API?
Yes. APIs.io indexes 12 OpenAPI specifications for The Companies API, each linked for download from this page.
How do I authenticate with the The Companies API?
The Companies API uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Thecompaniesapi Authentication.
How much does the The Companies API cost?
The Companies API publishes its prices; its Startup plan is $95/ month as of 2026-10-28. APIs.io lists 3 pricing plans for The Companies API, with each plan's price, limits and inclusions under Pricing on this page.
Is the The Companies API ready for AI agents?
The Companies API has a Kin Score of 67.7 out of 100 (exemplar) and an Agent Readiness score of 28.4 (agent-aware), scored by API Evangelist on 2026-11-06.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.