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UK Data: UK Companies House

R0· no sign-in

UK Companies House and KYB: search, officers, owners (PSC), filings, charges, banned directors

v1.5.0 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality89new
Trust83of 100
Uptime, 30 days100%
Latency p50286 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "uk-companies": {
      "type": "http",
      "url": "https://ukdata.reliness.co.uk/mcp/uk-companies",
      "headers": {
        "Authorization": "Bearer ${UK_COMPANIES_TOKEN}"
      }
    }
  }
}
claude mcp add --transport http uk-companies https://ukdata.reliness.co.uk/mcp/uk-companies --header "Authorization: Bearer ${UK_COMPANIES_TOKEN}"
[mcp_servers.uk-companies]
url = "https://ukdata.reliness.co.uk/mcp/uk-companies"
bearer_token_env_var = "UK_COMPANIES_TOKEN"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "uk-companies": {
      "type": "remote",
      "url": "https://ukdata.reliness.co.uk/mcp/uk-companies",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {env:UK_COMPANIES_TOKEN}"
      }
    }
  }
}
{
  "mcpServers": {
    "uk-companies": {
      "type": "http",
      "url": "https://ukdata.reliness.co.uk/mcp/uk-companies",
      "headers": {
        "Authorization": "Bearer ${UK_COMPANIES_TOKEN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=uk-companies&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vdWtkYXRhLnJlbGluZXNzLmNvLnVrL21jcC91ay1jb21wYW5pZXMiLCJoZWFkZXJzIjp7IkF1dGhvcml6YXRpb24iOiJCZWFyZXIgJHtVS19DT01QQU5JRVNfVE9LRU59In19"
}
{
  "servers": {
    "uk-companies": {
      "type": "http",
      "url": "https://ukdata.reliness.co.uk/mcp/uk-companies",
      "headers": {
        "Authorization": "Bearer ${UK_COMPANIES_TOKEN}"
      }
    }
  }
}
{
  "mcpServers": {
    "uk-companies": {
      "httpUrl": "https://ukdata.reliness.co.uk/mcp/uk-companies",
      "headers": {
        "Authorization": "Bearer ${UK_COMPANIES_TOKEN}"
      }
    }
  }
}
extensions:
  "uk-companies":
    enabled: true
    name: "uk-companies"
    type: streamable_http
    uri: "https://ukdata.reliness.co.uk/mcp/uk-companies"
    headers:
      "Authorization": "Bearer ${UK_COMPANIES_TOKEN}"
    timeout: 300

Placeholders to fill from your own secret store: ${UK_COMPANIES_TOKEN}. The registry never accepts secret values.

Quality 89 / 100new

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene100 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations11 of 11 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 1,486 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stabilityn/a · weight 15
  • n/a
    stability.changes, stability.rug_pulltool history recorded for 3 of the 7 days needed
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

11 tools, about 1,486 tokens to load them all · tool set ddcc6f7f1d06 · tools last changed 2026-11-04 · checked 2026-11-07 18:01 UTC

Tool changes

  • kyb_checkadded

    Full KYB (know your business) check on a UK company number in one call: profile and status, officers, owners (PSCs), overdue filings, registered charges, insolvency, a disqualified-director screen on the board, and Gazette notices, with a risk summary. For supplier onboarding, due diligence and anti-fraud. (cost: 6 credits)

  • company_insolvencyadded

    Insolvency cases for a UK company number from Companies House: liquidation, administration, receivership, with dates and the insolvency practitioners handling it. (cost: 1 credit)

  • company_chargesadded

    Registered charges and mortgages (secured debt) against a UK company number: status, amounts, who the debt is owed to. For credit, lending and due-diligence checks. (cost: 1 credit)

  • disqualified_officersadded

    Search the UK register of disqualified company directors by name. Check whether a person has been banned from running a company, for KYB, onboarding and fraud screening. (cost: 1 credit)

  • officer_appointmentsadded

    All directorships a person holds or has held across UK companies (Companies House appointments). Find every company a director is tied to, for due diligence and conflict checks. Pass a name or an officerId. (cost: 1 credit)

  • companies_incorporatedchangedannotations
  • company_filingschangedannotations
  • company_pscschangedannotations
  • company_officerschangedannotations
  • company_profilechangedannotations

Showing the latest 10. Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 83 / 100

no-repository
provenance55
liveness100
freshness100
hygiene80

+dns-namespace +website +reachable +uptime-100% +updated-1d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://ukdata.reliness.co.uk/mcp/uk-companies streamable-httpnoneyes100%286 ms2025-11-252026-11-07

Tools (11)

companies_incorporatedread-onlyFind companies by incorporation date range, SIC codes, status, location or name fragment (Companies House advanced search). New-business lead lists. (cost: 2 credits)
company_chargesread-onlyRegistered charges and mortgages (secured debt) against a UK company number: status, amounts, who the debt is owed to. For credit, lending and due-diligence checks. (cost: 1 credit)
company_filingsread-onlyFiling history for a company number (accounts, confirmation statements, officer changes, charges). (cost: 1 credit)
company_insolvencyread-onlyInsolvency cases for a UK company number from Companies House: liquidation, administration, receivership, with dates and the insolvency practitioners handling it. (cost: 1 credit)
company_officersread-onlyDirectors and secretaries for a company number, with appointment and resignation dates. (cost: 1 credit)
company_profileread-onlyFull Companies House profile for a company number: status, SIC codes, registered office, accounts and confirmation statement due dates and overdue flags, charges and insolvency flags. (cost: 1 credit)
company_pscsread-onlyPersons with significant control (beneficial owners) for a company number. (cost: 1 credit)
company_searchread-onlySearch Companies House by name. Returns company number, status, type, incorporation date, address. (cost: 1 credit)
disqualified_officersread-onlySearch the UK register of disqualified company directors by name. Check whether a person has been banned from running a company, for KYB, onboarding and fraud screening. (cost: 1 credit)
kyb_checkread-onlyFull KYB (know your business) check on a UK company number in one call: profile and status, officers, owners (PSCs), overdue filings, registered charges, insolvency, a disqualified-director screen on the board, and Gazette notices, with a risk summary. For supplier onboarding, due diligence and anti-fraud. (cost: 6 credits)
officer_appointmentsread-onlyAll directorships a person holds or has held across UK companies (Companies House appointments). Find every company a director is tied to, for due diligence and conflict checks. Pass a name or an officerId. (cost: 1 credit)

Schemas: list_tools.

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Official server.json
{
  "name": "uk.co.reliness/uk-companies",
  "title": "UK Data: UK Companies House",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://ukdata.reliness.co.uk/mcp/uk-companies",
      "type": "streamable-http",
      "headers": [
        {
          "name": "Authorization",
          "isSecret": true,
          "description": "Optional. Bearer <key> for more than the free daily allowance; free key from POST https://ukdata.reliness.co.uk/keys"
        }
      ]
    }
  ],
  "version": "1.5.0",
  "websiteUrl": "https://ukdata.reliness.co.uk",
  "description": "UK Companies House and KYB: search, officers, owners (PSC), filings, charges, banned directors"
}