UK Companies House
The Companies House public register (5M+ live companies, 15M+ dissolved). Company-level data only. Note: Companies House answers 404 when a company has none of the requested records (e.g. no insolvency).
- cost
- Free tier 12 with 3 free calls a day
- after that
- from $0.002 / call · card or USDC
- endpoints
- 12
No signup needed over MCP: 50 free calls a day, or 500 with a free key.
Alphabetical name search 3 free / day
Companies listed alphabetically around a name — good for name-availability checks.
- cost
- 3 free / day then $0.003 / call
- MCP tool
- companies-house__alphabetical-search
- method
- GET
3 free calls a day, then $0.003 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/companies-house/alphabetical-search
| Param | Type | Description |
|---|---|---|
| q | string | Name |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/companies-house/alphabetical-search?q=Fourzerotwo" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/companies-house/alphabetical-search?q=Fourzerotwo"
by fourzerotwo
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Dissolved company search 3 free / day
Search dissolved and removed companies by name.
- cost
- 3 free / day then $0.003 / call
- MCP tool
- companies-house__dissolved-search
- method
- GET
3 free calls a day, then $0.003 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/companies-house/dissolved-search
| Param | Type | Description |
|---|---|---|
| q | string | Name |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/companies-house/dissolved-search?q=Woolworths" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/companies-house/dissolved-search?q=Woolworths"
by fourzerotwo
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Company profile 3 free / day
Status, type, incorporation date, SIC codes, accounts and confirmation statement due dates, registered office.
- cost
- 3 free / day then $0.005 / call
- MCP tool
- companies-house__profile
- method
- GET
3 free calls a day, then $0.005 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/companies-house/profile
| Param | Type | Description |
|---|---|---|
| company_number | string | 8-character company number, e.g. "00445790" |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/companies-house/profile?company_number=00445790" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/companies-house/profile?company_number=00445790"
by fourzerotwo
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Registered office 3 free / day
Current registered office address.
- cost
- 3 free / day then $0.002 / call
- MCP tool
- companies-house__registered-office
- method
- GET
3 free calls a day, then $0.002 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/companies-house/registered-office
| Param | Type | Description |
|---|---|---|
| company_number | string | 8-character company number, e.g. "00445790" |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/companies-house/registered-office?company_number=00445790" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/companies-house/registered-office?company_number=00445790"
by fourzerotwo
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Filing history 3 free / day
Accounts, confirmation statements, appointments and other filings, newest first.
- cost
- 3 free / day then $0.005 / call
- MCP tool
- companies-house__filing-history
- method
- GET
3 free calls a day, then $0.005 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/companies-house/filing-history
| Param | Type | Description |
|---|---|---|
| company_number | string | 8-character company number, e.g. "00445790" |
| category? | string | accounts, confirmation-statement, officers, capital, mortgage… |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/companies-house/filing-history?company_number=00445790" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/companies-house/filing-history?company_number=00445790"
by fourzerotwo
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Filing item 3 free / day
One filing's detail and document link.
- cost
- 3 free / day then $0.003 / call
- MCP tool
- companies-house__filing
- method
- GET
3 free calls a day, then $0.003 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/companies-house/filing
| Param | Type | Description |
|---|---|---|
| company_number | string | 8-character company number, e.g. "00445790" |
| transaction_id | string | Transaction id from filing history |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/companies-house/filing?company_number=00445790&transaction_id=MzU0MzY3ODg5MGFkaXF6a2N4" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/companies-house/filing?company_number=00445790&transaction_id=MzU0MzY3ODg5MGFkaXF6a2N4"
by fourzerotwo
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Charges (secured debt) 3 free / day
Mortgages and charges registered against a company, with lenders and status.
- cost
- 3 free / day then $0.008 / call
- MCP tool
- companies-house__charges
- method
- GET
3 free calls a day, then $0.008 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/companies-house/charges
| Param | Type | Description |
|---|---|---|
| company_number | string | 8-character company number, e.g. "00445790" |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/companies-house/charges?company_number=00445790" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/companies-house/charges?company_number=00445790"
by fourzerotwo
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Insolvency 3 free / day
Insolvency cases, practitioners and key dates for a company.
- cost
- 3 free / day then $0.008 / call
- MCP tool
- companies-house__insolvency
- method
- GET
3 free calls a day, then $0.008 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/companies-house/insolvency
| Param | Type | Description |
|---|---|---|
| company_number | string | Company number |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/companies-house/insolvency?company_number=NI017846" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/companies-house/insolvency?company_number=NI017846"
by fourzerotwo
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Exemptions 3 free / day
PSC disclosure exemptions a company holds.
- cost
- 3 free / day then $0.002 / call
- MCP tool
- companies-house__exemptions
- method
- GET
3 free calls a day, then $0.002 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/companies-house/exemptions
| Param | Type | Description |
|---|---|---|
| company_number | string | Company number |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/companies-house/exemptions?company_number=00445790" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/companies-house/exemptions?company_number=00445790"
by fourzerotwo
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UK establishments 3 free / day
UK branches of an overseas company.
- cost
- 3 free / day then $0.002 / call
- MCP tool
- companies-house__uk-establishments
- method
- GET
3 free calls a day, then $0.002 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/companies-house/uk-establishments
| Param | Type | Description |
|---|---|---|
| company_number | string | Overseas company number (FC…) |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/companies-house/uk-establishments?company_number=FC013958" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/companies-house/uk-establishments?company_number=FC013958"
by fourzerotwo
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Search companies 3 free / day
Find UK companies by name or number, with status, address and incorporation date.
- cost
- 3 free / day then $0.003 / call
- MCP tool
- companies-house__search
- method
- GET
3 free calls a day, then $0.003 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/companies-house/search
| Param | Type | Description |
|---|---|---|
| q | string | Company name or number |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/companies-house/search?q=Tesco" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/companies-house/search?q=Tesco"
by fourzerotwo
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Advanced company search 3 free / day
Filter companies by name, status, SIC code, location and incorporation dates.
- cost
- 3 free / day then $0.005 / call
- MCP tool
- companies-house__advanced-search
- method
- GET
3 free calls a day, then $0.005 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/companies-house/advanced-search
| Param | Type | Description |
|---|---|---|
| company_name_includes? | string | Name contains |
| company_status? | string | active, dissolved, liquidation… |
| sic_codes? | string | SIC code |
| location? | string | Town, county or postcode area |
| incorporated_from? | string | YYYY-MM-DD |
| incorporated_to? | string | YYYY-MM-DD |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/companies-house/advanced-search" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/companies-house/advanced-search"
by fourzerotwo
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Contains public sector information licensed under the Open Government Licence v3.0. Source: Companies House.