io.github.vdmeu/registrum-mcp

Tools

• get_bundle

  Get several views of one UK company in a single request: profile, ECCTA compliance, financials, PSCs and directors. Prefer this over calling get_company, get_compliance, get_financials, get_psc and get_directors separately - it returns the same data for one API call and one credit instead of five, and in a single round trip. Pass include to fetch only the sections you need; omit it to get all five. The profile is always returned. Partial results are normal and are not errors: any section can come back null when it is unavailable for that company or not included in the caller's plan - financials are null for a company that has filed no machine-readable accounts, and compliance requires a Pro plan. Report a null section as 'not available', never as a failed lookup or as an absence of the underlying fact. Only a missing company is an error, and that is a 404. Each section carries exactly what its own endpoint returns, including ECCTA verification_status on individuals, so the pending-versus-overdue rules apply here too.

  shallow
• get_company

  Get an enriched profile for a UK company by its Companies House number. Returns name, status, type, incorporation date, registered address, SIC codes with descriptions, accounts status, confirmation statement status, and derived fields like company_age_years and accounts.overdue that are not available from the raw Companies House API.

  shallow
• get_compliance

  Check a UK company's ECCTA identity-verification status - who has verified their identity with Companies House, who is still pending, and who is overdue. The Economic Crime and Corporate Transparency Act requires every director and PSC to verify their identity; enforcement begins 18 November 2026, after which unverified officers can block filings. Returns per-company counts (directors_total, directors_verified, directors_pending, directors_overdue) and the same for PSCs, plus unverified_persons with each person's name, role, status and their individual deadline. IMPORTANT: 'pending' means the deadline has not yet passed - it is NOT a failure and must not be reported as one. Only 'overdue' means a deadline was missed. Requires a Pro plan or above. Cached for 24 hours.

  shallow
• get_directors

  Get the current and past officers for a UK company. Despite the tool name, not every entry is a director: the list is the full officer register, so each entry carries an officer_role such as 'director', 'secretary', 'corporate-secretary' or 'llp-member', plus an is_board_director boolean that is false for secretaries. Report each person by their own officer_role - never describe the whole list as directors. Each officer includes name, officer_role, is_board_director, appointment date, resignation date (if applicable), nationality, occupation, month and year of birth, ECCTA verification status, and a list of other companies they are or were appointed to, each with its own officer_role. This gives you a full picture of an officer's corporate history in one call.

  shallow
• get_financials

  Get structured financial data for a UK company, parsed from its iXBRL accounts filed at Companies House. Returns revenue, cost of sales, gross profit, operating profit, net profit, fixed assets, current assets, total equity, net assets, creditors, and average employees for the current and prior reporting year. Also includes accounts type (full/abbreviated/micro/dormant) and a data_quality block indicating which fields were extracted and which were absent from the filing. Cached for 7 days.

  shallow
• get_network

  Map the corporate network connected to a UK company via shared directors. Returns all companies connected through shared board members, up to the specified depth. Each connected company includes its name, number, status, and the directors it shares with the focal company. Useful for identifying corporate group structures, related party relationships, and director interlocks.

  shallow
• get_psc

  Get the PSC (Persons with Significant Control) register for a UK company. Returns individuals, corporate entities, and legal persons who own 25%+ of shares, hold 25%+ of voting rights, or have significant influence or control. Each PSC includes decoded control types in plain English (e.g. 'Owns 25-50% of shares' instead of raw codes). Individual PSCs also carry ECCTA identity verification: verification_status (verified, pending, overdue or unknown), identity_verified, identity_verified_on, and verification_deadline. pending means that person's deadline has not yet passed and is not a compliance failure; unknown means Companies House publishes no record for them, an absence of data rather than a breach. Only overdue means a deadline was missed. Corporate entity PSCs include their company number for ownership chain traversal, and carry none of the verification fields. Also detects PSC exemptions for listed PLCs. Cached for 24 hours.

  shallow
• get_psc_chain

  Trace the full ownership chain for a UK company by recursively following corporate entity PSCs. Returns a tree showing who ultimately controls the company - natural persons (UBOs), foreign entities, or legal persons - along with why each branch terminated. Each node has a terminal_reason: natural_person, foreign_entity, legal_person, super_secure, unverified_registry, unknown_kind, depth_limit, not_found, cycle_detected, or psc_exempt. Two of those are easy to misread: unverified_registry means a registration number was filed but cannot be tied to the Companies House register (a foreign registry, or one we do not recognise), which is a finding about the ownership structure and not an error or an outage; unknown_kind means Companies House returned a PSC type we do not classify, with the raw value in kind_raw. ECCTA identity verification: every individual node, at any depth including the ultimate beneficial owners this chain exists to find, carries verification_status (verified, pending, overdue or unknown), identity_verified (true, false for overdue only, or null otherwise), identity_verified_on, and verification_deadline. IMPORTANT: pending means that person's own deadline has not yet passed - it is not a compliance failure and must not be reported as one. A status of unknown means Companies House publishes no record for them, which is an absence of data rather than a breach. Only overdue means a deadline was missed. Corporate, legal-person and super-secure nodes carry none of these fields, so never describe a company itself as having unverified identity. chain_metadata reports how many companies were resolved and the total API credit cost. Use this for KYB (Know Your Business) checks, AML screening, or any task requiring beneficial ownership beyond the immediate PSC layer.

  shallow
• search_company

  Search for UK companies by name. Returns a list of matching companies with their company number, status, type, and registered address. Use this first when you only have a company name and need its company number.

  shallow

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