# The Company Atlas, free, POST /mcp/uk: Company discovery API

> About 5.7 million live companies on the Companies House register for England and Wales, Scotland, and Northern Ireland: private and public limited companies, LLPs, limited partnerships, community interest companies, charitable incorporated organisations, and overseas entities.

The Company Atlas' Free plan for the company discovery API costs $0.00 per 1,000 companies. We check each provider's docs for 13 fields. The Company Atlas' docs list 3: Industry, Type and status, Headquarters.
We haven't run The Company Atlas through [our company discovery API benchmark](https://datacircle.dev/best-company-discovery-api.txt) yet.
This plan is free. We rank 1,345 plans for company discovery APIs by price. Half the plans cost $0.45 or less per 1,000 companies. [649 company discovery API plans on our price sheet are free.](https://datacircle.dev/best-company-discovery-api.txt) [AdLibrarySpy's free plan](https://datacircle.dev/company-discovery-apis/adlibraryspy/free/llms.txt) scores highest of the free plans in our benchmark, at 67.3 out of 100.
[StackScan's $189 monthly plan](https://datacircle.dev/company-discovery-apis/stackscan/189-monthly-enterprise-post-v1-tech-lookup-lists/llms.txt) is the cheapest paid plan per 1,000 companies, with no charge per call. You get as many companies as StackScan's rate limit allows. [Seltz's pay-as-you-go plan](https://datacircle.dev/company-discovery-apis/seltz/pay-as-you-go-pay-as-you-go-post-v1-search-search-base/llms.txt) costs the least for 10,000 companies a month: $0.03.
[PeopleSearch.im's $5 pack](https://datacircle.dev/company-discovery-apis/peoplesearch-im/5-pack/llms.txt) covers any number of companies, and costs less up front than StackScan's $189 monthly plan.
[GetProspect](https://datacircle.dev/company-discovery-apis/getprospect/49-monthly/llms.txt), [Hunter](https://datacircle.dev/company-discovery-apis/hunter/49-monthly-starter-post-discover/llms.txt) and [PeopleSearch.im](https://datacircle.dev/company-discovery-apis/peoplesearch-im/5-pack/llms.txt) are the best company discovery API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-uk
- [Company discovery API in 2026: the best of 100+ compared](https://datacircle.dev/best-company-discovery-api.txt)
- Get it: https://thecompanyatlas.com/mcp/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Request: `POST https://thecompanyatlas.com/mcp/uk`
- API key: with the plan, on https://thecompanyatlas.com/mcp/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Its API docs: https://thecompanyatlas.com/tools/uk-companies-house?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- Sold by: The Company Atlas (https://thecompanyatlas.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing)
- Checked: 2026-11-08

## In the answer

- Completeness: 23%
- Industry: ✓
- Type and status: ✓
- Headquarters: ✓

## Price

- $ per 1,000 companies: $0.00
- Per: page, size not stated
- Billing: free

## Aggregators

- Aggregators: none

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: About 5.7 million live companies on the Companies House register for England and Wales, Scotland, and Northern Ireland: private and public limited companies, LLPs, limited partnerships, community interest companies, charitable incorporated organisations, and overseas entities.

## Data

- Countries: United Kingdom
- Keep data: no limit
- Use data: You may not: extract data from the website, use data mining, robots, or similar data-gathering and extraction tools on the website.

## Plan

- Pay: $0
- You get: 50 credits a month
- Enough for: 50 pages a month
- Expires: resets on the 1st of each month (UTC)

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: params.name "UK_search_companies". Optional: name, company type, status, postcode prefix, SIC code, incorporation date range
- Method: POST
- Path: /mcp/uk

## About the plan

- Plan: Free
- Who can get it: anyone with a Google account

## The 8 fields the plan's answer can hold

company name, registration number, company type, status, registered office, SIC code, incorporation date, total results

## The Company Atlas' plans (1)

- [The Company Atlas, free, POST /mcp/uk](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-uk/llms.txt): $0.00 per 1,000, 23% complete

## The Company Atlas' calls for this API (15)

- `POST /mcp/australia`: [The Company Atlas, free, POST /mcp/australia](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-australia/llms.txt)
- `POST /mcp/bvi`: [The Company Atlas, free, POST /mcp/bvi](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-bvi/llms.txt)
- `POST /mcp/colorado`: [The Company Atlas, free, POST /mcp/colorado](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-colorado/llms.txt)
- `POST /mcp/florida`: [The Company Atlas, free, POST /mcp/florida](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-florida/llms.txt)
- `POST /mcp/hong-kong`: [The Company Atlas, free, POST /mcp/hong-kong](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-hong-kong/llms.txt)
- `POST /mcp/hungary`: [The Company Atlas, free, POST /mcp/hungary](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-hungary/llms.txt)
- `POST /mcp/malaysia`: [The Company Atlas, free, POST /mcp/malaysia](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-malaysia/llms.txt)
- `POST /mcp/pakistan`: [The Company Atlas, free, POST /mcp/pakistan](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-pakistan/llms.txt)
- `POST /mcp/philippines`: [The Company Atlas, free, POST /mcp/philippines](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-philippines/llms.txt)
- `POST /mcp/singapore`: [The Company Atlas, free, POST /mcp/singapore](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-singapore/llms.txt)
- `POST /mcp/thailand`: [The Company Atlas, free, POST /mcp/thailand](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-thailand/llms.txt)
- `POST /mcp/uae`: [The Company Atlas, free, POST /mcp/uae](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-uae/llms.txt)
- `POST /mcp/uganda`: [The Company Atlas, free, POST /mcp/uganda](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-uganda/llms.txt)
- `POST /mcp/uk`: [The Company Atlas, free, POST /mcp/uk](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-uk/llms.txt)
- `POST /mcp/vn`: [The Company Atlas, free, POST /mcp/vn](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-vn/llms.txt)

## The Company Atlas' APIs (3)

- [The Company Atlas Business verification API pricing, 1 plan](https://datacircle.dev/business-verification-apis/the-company-atlas/free/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/australia](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-australia/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/bvi](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-bvi/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/colorado](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-colorado/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/florida](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-florida/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/hong-kong](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-hong-kong/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/hungary](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-hungary/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/malaysia](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-malaysia/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/pakistan](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-pakistan/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/philippines](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-philippines/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/singapore](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-singapore/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/thailand](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-thailand/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/uae](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-uae/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/uganda](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-uganda/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/uk](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-uk/llms.txt)
- [The Company Atlas Company enrichment API pricing, 1 plan, POST /mcp/vn](https://datacircle.dev/company-enrichment-apis/the-company-atlas/free-post-mcp-vn/llms.txt)
- [The Company Atlas Company discovery API pricing, 1 plan, POST /mcp/uk](https://datacircle.dev/company-discovery-apis/the-company-atlas/free-post-mcp-uk/llms.txt)

## The Company Atlas: company discovery API alternatives

[The Company Atlas alternatives: other company discovery API providers by price](https://datacircle.dev/the-company-atlas-alternatives.txt)

We list other providers' plans closest to this plan in price per 1,000 companies.

- [GetProspect, free](https://datacircle.dev/company-discovery-apis/getprospect/free/llms.txt): $0.00 per 1,000, 62% complete, stored
- [Hunter, free, POST /discover](https://datacircle.dev/company-discovery-apis/hunter/free-post-discover/llms.txt): $0.00 per 1,000, 54% complete, stored
- [PeopleSearch.im, free](https://datacircle.dev/company-discovery-apis/peoplesearch-im/free/llms.txt): $0.00 per 1,000, 38% complete, stored
- [AnVendor, free, POST /v1/leads/search](https://datacircle.dev/company-discovery-apis/anvendor/free-post-v1-leads-search/llms.txt): $0.00 per 1,000, 23% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-08.

- https://thecompanyatlas.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://thecompanyatlas.com/mcp/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://thecompanyatlas.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing
- https://thecompanyatlas.com/tools/uk-companies-house?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=company-discovery-api-pricing