CompanyStack MCP Server: Install & Setup

Install CompanyStack in Claude Code

Claude Code

claude mcp add --transport http companystack https://api.companystack.co.uk/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "companystack": {
      "url": "https://api.companystack.co.uk/mcp"
    }
  }
}

Frequently asked questions

What does the CompanyStack MCP server do?

UK company data: search, officers, owners, shareholders, filed accounts, new companies, KYB checks.

Is the CompanyStack MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does CompanyStack run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add CompanyStack to Claude Code?

Run: claude mcp add --transport http companystack https://api.companystack.co.uk/mcp

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