Ca Rate Filings vs Companies House

A side-by-side look at the Ca Rate Filings and Companies House MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

C
Ca Rate FilingsDeveloper Tools
Natural-language search over California's public insurance rate, rule & form filings.12EmergingAuth: not declared
Companies House logoCompanies HouseLegal · Local subprocess (stdio)MCP server and CLI for the UK Companies House API. Search, filings, officers, due diligence.49FairAuth: api key required

Verdict: choose Ca Rate Filings for developer tools work; choose Companies House for legal as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

C
Choose Ca Rate Filings when

  • You need dedicated capabilities in the Developer Tools domain.
Explore Ca Rate Filings

Companies House logoChoose Companies House when

  • You need dedicated capabilities in the Legal domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: API key required.
  • You have the keys it needs: COMPANIES_HOUSE_API_KEY.
Explore Companies House

Feature & specification comparison

Rows where the two servers differ are marked.

Spec
C
Ca Rate Filings
Companies House logoCompanies House
CategoryDeveloper ToolsLegal
Quality signal12/100 · Emerging49/100 · Fair
Install commandNot confirmed yetConfirmed
Transport—Local subprocess (stdio)
AuthNot declaredAPI key required
PricingNot declaredNot declared
Required env varsNone listedCOMPANIES_HOUSE_API_KEY
Verified ownerCommunity listingCommunity listing
GitHub stars—13
Directory activity 1 views 0 installs 0 upvotes 5 views 0 installs 0 upvotes
ToolsNot listedNot listed

Tools & capabilities

Ca Rate Filings tools

No tool names declared yet. Check the project README from the listing page.

Companies House tools

No tool names declared yet. Check the project README from the listing page.

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Ca Rate Filings

No confirmed install command for Ca Rate Filings yet — follow the setup steps linked from its listing page rather than a guessed package name.

Companies House

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "companies-house": {
      "command": "npx",
      "args": [
        "-y",
        "companies-house-mcp"
      ],
      "env": {
        "COMPANIES_HOUSE_API_KEY": "YOUR_COMPANIES_HOUSE_API_KEY_HERE"
      }
    }
  }
}

Frequently asked questions

Ca Rate Filings is categorized under Developer Tools and uses an install path we have not confirmed yet. Companies House belongs to Legal and uses a local stdio subprocess. Pick Ca Rate Filings for developer tools work and Companies House for legal.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client. Ca Rate Filings has no confirmed install command yet — follow its own setup instructions.

Ca Rate Filings has no declared pricing — check the project's own site. Companies House has no declared pricing — check the project's own site. Auth: api key required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add ca-rate-filings and companies-house as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Ca Rate Filings has a quality signal of 12/100 (Emerging) with 1 views, 0 installs and 0 GitHub stars. Companies House has 49/100 (Fair) with 5 views, 0 installs and 13 GitHub stars.