PostHog Content Library (BYOK)
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OpenAPIRead your data10 tools
Companies House Registry (BYOK)
Run advanced, alphabetical and dissolved company searches and read registered office, insolvency, exemptions and register locations from the Companies House public data API with your own key
Unify Dynamics LLC
Tools10read-only
Sign-inBYOKbring your own key
Key keptNeverused for one call only
PriceFreeoptional Pro limits
ProviderCompanies House Registryunofficial, not affiliated
Works withMCP · RESTany agent
Try asking
Real questions, and the tools your agent calls to answer them.
Which active private limited companies incorporated in 2026 have SIC code 62012?
Tools called
advanced_company_searchWhat companies are listed alphabetically around the name Northwind Traders?
Tools called
search_companies_alphabeticallyFind dissolved UK companies named Blue Anchor Trading
Tools called
search_dissolved_companiesWhat is the registered office address of company 00000006?
Tools called
get_registered_office_addressIs company 00000006 in an insolvency process?
Tools called
get_company_insolvencyDoes company 00000006 have any PSC register exemptions?
Tools called
get_company_exemptionsAbout
Companies House Registry (BYOK) lets an AI assistant read your own Companies House Registry data through the Companies House Registry API with a key you supply (Companies House API key). Read-only: 10 tools (advanced_company_search, search_companies_alphabetically, search_dissolved_companies, get_registered_office_address, get_company_insolvency, get_company_exemptions, list_uk_establishments, get_company_registers, get_charge_details, get_filing_history_item). The BYOK key travels with each request, is used for that one call only and is never stored, logged or cached; it is only ever sent to api.company-information.service.gov.uk. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Companies House Registry. Companies House Registry and its logos are trademarks of their owners and are used only to say which service the connector works with.
Sources: Live from the Companies House Registry API (api.company-information.service.gov.uk) with a BYOK key; documentation: https://developer-specs.company-information.service.gov.uk/companies-house-public-data-api/reference. Endpoints checked against that documentation on 2026-10-16.
Privacy
The publisher, Unify Dynamics LLC, states that tool inputs are processed in memory and not retained.
Data not collectedNo account, no profile, no stored prompts or results.
What it can do
10 tools, grouped by job. Every one is read-only or compute-only.
- Advanced company searchSearch UK companies by name fragments, status, type, SIC code, location and incorporation or dissolution dates; returns company number, status,…
- Search companies alphabeticallyList companies whose names sort next to a name, with company number, status and type; page with the ordered_alpha_key_with_id values.
- Search dissolved companiesSearch dissolved UK companies by name, as an alphabetical list, best match or previous company name; returns dissolution date and old names.
- Get registered office addressGet the current registered office address of a UK company.
- Get company insolvencyGet insolvency cases for a UK company: case type, dates, case number and status.
- Get company exemptionsGet the disclosure exemptions recorded for a UK company, such as exemption from keeping a PSC register for listed companies.
- List uk establishmentsList the UK establishments registered by an overseas company: company number, name, status and locality.
- Get company registersGet where a company keeps its statutory registers (directors, secretaries, members, PSC): register type and where it was moved to.
- Get charge detailsGet one registered charge of a UK company: charge code, status, key dates, classification and who is entitled to it.
- Get filing history itemGet one filing of a UK company by transaction id: type, category, date, description and page count.
Information
PublisherUnify Dynamics LLC
CategoryGovernment
LanguagesEnglish
Built forWorldwide
CompatibilityAny MCP client · any agent · REST
Version0.1.0
MCP endpoint
https://byok-companieshouse-registry.connectorbay.com/mcpREST APIopenapi.json
CountryWorldwide
FunctionOther
LayerDeep connectors
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