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Captain Data

AI Data for AI Products. Captain Data provides a REST API for fresh B2B people and company data — enrichment, search, and discovery — built for product teams, GTM platforms, and AI agents. Base URL `https://api.captaindata.com/v1`, authenticated with an `X-API-KEY` header. Free trial: 100 credits (one-shot), no credit card.

For agents: REST API for B2B people and company data: enrichment, search and discovery from LinkedIn URLs. Base URL api.captaindata.com/v1, free trial of 100 credits.

b2b data apipeople enrichmentcompany enrichmentlinkedin datasales navigator search

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-21T14:34:41.978Z. Cached copy · Source on captaindata.com

# Captain Data

> AI Data for AI Products. Captain Data provides a REST API for fresh B2B people and company data — enrichment, search, and discovery — built for product teams, GTM platforms, and AI agents. Base URL `https://api.captaindata.com/v1`, authenticated with an `X-API-KEY` header. Free trial: 100 credits (one-shot), no credit card.

Captain Data helps you understand people and companies with real-time, structured profiles. Pass a LinkedIn URL, a name, a company, or a Sales Navigator–compatible search query; get JSON you can ship in products, workflows, and agents.

- **Sign up / API keys:** https://app.captaindata.com
- **Support:** support@captaindata.com
- **Status:** https://status.captaindata.com
- **Sitemap:** https://www.captaindata.com/sitemap.xml
- **Coverage (marketing site):** 750M+ people profiles, 54M+ company records, 99% uptime SLA, typical response under 3s

Use the official API reference for request parameters, response schemas, pagination, credits, and error codes. Search and employee endpoints accept Sales Navigator–compatible `query` strings; paginate with `X-Pagination-Next` / `X-Pagination-Previous` (cursors expire after 24 hours).

## API reference

- [Introduction](https://docs.captaindata.com/v1/introduction): API v1 overview, authentication, getting started
- [Enrich People](https://docs.captaindata.com/v1/api/people/enrich): `GET /people/enrich` — full profile from a LinkedIn profile URL (1 credit)
- [Find People](https://docs.captaindata.com/v1/api/people/find): `GET /people/find` — match by full name and optional company (2 credits)
- [Search People](https://docs.captaindata.com/v1/api/people/search): `GET /people/search` — Sales Navigator people search (1 + 1/result)
- [Enrich Company](https://docs.captaindata.com/v1/api/companies/enrich): `GET /companies/enrich` — firmographics from a LinkedIn company URL (1 credit)
- [Find Company](https://docs.captaindata.com/v1/api/companies/find): `GET /companies/find` — match by company name (2 credits)
- [Search Companies](https://docs.captaindata.com/v1/api/companies/search): `GET /companies/search` — Sales Navigator company search (1 + 1/result)
- [Find Employees](https://docs.captaindata.com/v1/api/companies/find-employees): `GET /companies/{uid}/employees` — employees at a company (1 + 1/result)
- [Error reference](https://docs.captaindata.com/v1/error-reference): error scopes, labels, and handling
- [Changelog](https://docs.captaindata.com/v1/changelog/overview): API and platform releases

## Product

- [Home](https://www.captaindata.com/): overview, live API console, endpoints table, quickstart
- [Products](https://www.captaindata.com/products): all people and company APIs
- [People APIs hub](https://www.captaindata.com/people): people enrichment, find, search
- [Company APIs hub](https://www.captaindata.com/companies): company enrichment, find, search, employees
- [People Enrichment](https://www.captaindata.com/people-enrichment): enrich a person from LinkedIn
…

Related sites

Other listed sites in AI and machine learning. See the whole category →

Machine-readable: GET /v1/resolve?q=captaindata.com · GET /v1/domain/captaindata.com · this page as Accept: application/json or text/markdown · MCP lookup_domain

Automatically discovered from public files. Inclusion does not imply endorsement or publisher participation.

Claim my listing on Agent Web Map for captaindata.com:
1. POST https://agentwebmap.com/v1/sites/captaindata.com/claims and keep claim_id and claim_secret private.
2. Publish the proof: add the line "AgentWebMap ownership: <token>" (token from step 1) to https://captaindata.com/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
3. POST https://agentwebmap.com/v1/sites/captaindata.com/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/captaindata.com).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verify

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