Companies House MCP Server

Overview

The Companies House MCP Server bridges the gap between AI assistants and the UK’s official company registry. By exposing over 45 distinct API endpoints from the Companies House service, it allows AI agents to query detailed corporate data—such as registration status, officer lists, filing histories, and ownership structures—without the need for custom integration code. This capability is particularly valuable for developers building AI‑powered business tools, compliance workflows, or due‑diligence assistants that require real‑time access to authoritative company information.

Why It Matters

For many applications, obtaining accurate corporate data is a bottleneck: developers must handle API keys, pagination, and error handling themselves. The MCP server abstracts these concerns behind a standard protocol that AI clients can consume natively. As a result, developers can focus on higher‑level logic—such as natural language queries or automated reporting—while the MCP server manages authentication, rate limiting, and response formatting. This leads to faster prototyping, reduced maintenance overhead, and a consistent developer experience across different AI platforms.

Core Features

• Comprehensive Company Data: Retrieve a company’s profile, registered office address, insolvency status, and more.
• Advanced Search: Execute filtered searches by company name, status, or officer, and perform unified “search all” queries across multiple resource types.
• Officer & Appointment Management: Access current and historical officer lists, individual appointment details, and disqualification records.
• Filing & Document Retrieval: Pull filing histories—including accounts, annual returns, and other statutory documents—and inspect individual filings.
• Ownership & Control Insights: Explore Persons with Significant Control (PSC) information, including individuals, corporate entities, and legal persons.
• Financial Instruments: List registered charges such as mortgages or debentures, and retrieve detailed charge information.

Real‑World Use Cases

• Due Diligence Automation: An AI assistant can instantly fetch a company’s filing history and PSC details to support investment or partnership decisions.
• Regulatory Compliance: Automated monitoring of officer disqualifications and insolvency status helps compliance teams stay ahead of regulatory changes.
• Market Intelligence: Businesses can aggregate company profiles and financial documents to analyze competitors or identify emerging market players.
• Legal Research: Law firms can quickly retrieve charge lists and filing histories to support litigation or corporate structuring.

Integration Flow

1. Add the MCP Server: Include the server’s endpoint in an AI client’s configuration (e.g., Claude Desktop).
2. Invoke Resources: The assistant issues a natural language request, which the client translates into an MCP call targeting one of the exposed resources.
3. Receive Structured Data: The server returns JSON‑formatted responses that can be directly interpreted or further processed by the AI for summarization, visualization, or decision support.

Distinct Advantages

• Standardized Protocol: Leveraging MCP ensures compatibility across multiple AI assistants without vendor lock‑in.
• Auth‑Free Interaction for Clients: The server handles API key management, so AI clients need not embed sensitive credentials.
• Rich, Granular Data: With 45+ endpoints, developers gain access to a depth of information rarely consolidated in a single tool.
• Developer‑Friendly: No need to write custom wrappers or handle pagination—everything is managed by the server, freeing developers to focus on business logic.

By integrating the Companies House MCP Server into AI workflows, developers unlock a powerful, ready‑to‑use gateway to the UK’s corporate registry, enabling smarter, data‑driven applications with minimal friction.