EIA (BYOK)
Browse the U.S. Energy Information Administration open data tree and read electricity retail sales and other energy time series with BYOK
Discover
OpenAPIRead your data7 tools
Companies House (BYOK)
Search UK companies and read company profiles, officers, filing history and charges from the Companies House public data API with BYOK
Unify Dynamics LLC
Tools7read-only
Sign-inBYOKbring your own key
Key keptNeverused for one call only
PriceFreeoptional Pro limits
ProviderCompanies Houseunofficial, not affiliated
Works withMCP · RESTany agent
Try asking
Real questions, and the tools your agent calls to answer them.
Find UK companies called Acme Widgets
Tools called
search_companiesShow the company profile of 00000006
Tools called
get_companyWho are the directors of company 00000006?
Tools called
list_company_officersWhat has company 00000006 filed recently?
Tools called
list_filing_historyDoes company 00000006 have any outstanding charges?
Tools called
list_company_chargesFind company officers named Jane Example
Tools called
search_officersAbout
Companies House (BYOK) lets an AI assistant read your own Companies House data through the Companies House API with a key you supply (Companies House API key). Read-only: 7 tools (search_companies, get_company, list_company_officers, list_filing_history, list_company_charges, search_officers, list_officer_appointments). 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. Companies House 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 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
7 tools, grouped by job. Every one is read-only or compute-only.
- Search companiesSearch UK registered companies by name or number; returns company number, name, status, type, incorporation date and a short address.
- Get companyGet a UK company profile by number: name, status, type, incorporation and cessation dates, SIC codes, registered office address, accounts and…
- List company officersList the officers (directors, secretaries, members) of a company with role, appointment and resignation dates, nationality, occupation and country…
- List filing historyList a company's filing history (accounts, confirmation statements, officer changes ...) with date, category, type, description and links to the…
- List company chargesList the charges (mortgages and security) registered against a company, with status, creation and satisfaction dates and who they are in favour of.
- Search officersSearch company officers by name; returns the name, how many appointments they hold and links to their appointment lists.
- List officer appointmentsList the company appointments of one officer by officer id (the id is in the officer's links from list_company_officers or search_officers):…
Information
PublisherUnify Dynamics LLC
CategoryMoney & business
LanguagesEnglish
Built forWorldwide
CompatibilityAny MCP client · any agent · REST
Version0.1.0
MCP endpoint
https://byok-companieshouse.connectorbay.com/mcpREST APIopenapi.json
CountryWorldwide
FunctionOther
LayerDeep connectors
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