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The Companies API lists API

The lists API from The Companies API — 5 operation(s) for lists.

The Companies API lists API is one of 12 APIs that The Companies API publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

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

This API exposes 8 operations across 5 paths, and defines 9 schemas. It is described by OpenAPI 3.2.0, at version 2.0.0.

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

8 operations 5 paths 9 schemas 1 DELETE3 GET2 PATCH2 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2.0.0
Base URL
https://api.thecompaniesapi.com/v2
Authentication
API Key
Terms of Service
Resource Areas
1

Authentication & Security 1

The Companies API lists API declares 1 security scheme for authenticating requests. An API key is passed in the header as Authorization (apiKey).

  • apiKey — The API key to use for authentication, you can get it from your API tokens page.

Paths & Operations 8

Across 5 paths, the API surfaces 8 operations — 1 DELETE, 3 GET, 2 PATCH, 2 POST. Each is listed below with its method, path, parameters, and response codes.

lists 8
GET
/v2/lists
Get and filter your lists.
fetchLists 2 params → 200401
POST
/v2/lists
Create a new list.
createList body → 200401
PATCH
/v2/lists/{listId}
Update a list.
updateList 1 param body → 200400401403
DELETE
/v2/lists/{listId}
Delete a list.
deleteList 1 param → 200400401403
GET
/v2/lists/{listId}/companies
Get companies in a list with a segmentation query.
fetchCompaniesInList 9 params → 200400401403
POST
/v2/lists/{listId}/companies
Get companies in a list with a segmentation body.
fetchCompaniesInListPost 1 param body → 200400401403
GET
/v2/lists/{listId}/companies/{domain}
Get a company in a list.
fetchCompanyInList 2 params → 200400401403404
PATCH
/v2/lists/{listId}/companies/toggle
Toggle one or more companies in a list.
toggleCompaniesInList 1 param body → 200400401403404

Schemas 9

The contract defines 9 schemas that model the data the API accepts and returns. The most detailed are List (22 properties), CompanyV2 (21 properties), Team (14 properties), User (14 properties). Each schema is shown below with its type and property counts.

Action
object
An action tracks a request made to our job queue and its result.
12 properties 2 required
SegmentationCondition
object
A condition for our platform segmentation engine.
5 properties 4 required
LLMAnswer
object
An answer from a query made to the LLM.
7 properties 4 required
CompanyV2
object
Our complete schema for company data.
21 properties
Team
object
A collection of users that can access the same resources.
14 properties 13 required
User
object
A user of the platform.
14 properties 9 required
PaginationMeta
object
Metadata about a paginated or billed response.
9 properties 8 required
List
object
A collection of companies saved or imported by a team.
22 properties 13 required
ListAnalytics
object
Analytics collection of a list.
3 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

thecompaniesapi-lists-api-openapi.yml Raw ↑

Other APIs The Companies API publishes across the network.

The Companies API actions API
The Companies API analytics API
The Companies API companies API
The Companies API industries API
The Companies API job-titles API
The Companies API locations API
The Companies API prompts API
The Companies API teams API
The Companies API technologies API
The Companies API users API
The Companies API utilities API
Where this information came from

This is an independent, third-party profile of The Companies API lists 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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