UK Companies House (Registrum) - no API key for Grok
io.github.registrumuk/uk-companies-house-mcp
UK company data: profiles, iXBRL financials, directors, PSC chains, ECCTA. Hosted, no key.
client:Grok
transport:streamable-http
runtime:npm
tools:9
Install UK Companies House (Registrum) - no API key in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"uk-companies-house-mcp": {
"type": "http",
"url": "https://registrum.co.uk/api/mcp"
}
}
}Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs