Koskamo

firmbase MCP

An MCP server that provides access to Belgian company data including the KBO register, NBB annual accounts, and the Belgian Gazette. It enables AI assistants to search for companies, retrieve financial summaries, health scores, and director information using OAuth authentication.

Visit firmbase

Endpoint and access

OAuth sign-in: the first time you connect, your client opens the vendor's own authorization prompt in a browser.

firmbase MCP logo, by firmbaseCommunity listingStreamable HTTPOAuth sign-inEndpoint checked 2026-11-01Published by firmbase
You need:Sign in with OAuth, no API keyCreate an API key
MCP endpoint (Streamable HTTP)
https://api.firmbase.be/mcp
Vendor documentation

What you can do with it

  • Search for companies by name, VAT, or enterprise number
  • Retrieve financial summaries and health scores
  • Look up directors and official gazette publications
  • Monitor company changes with nightly alerts

Source and maintenance

Community listingRegistry 1.1.0
mcp-registry: io.github.firmbase-be/firmbase@1.1.0Source repositoryProject website
Maintenance checked

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
271 ms
95th percentile latency
271 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 271 ms · metadata changed · refuses unauthenticated initialize (HTTP 401)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http firmbase-mcp https://api.firmbase.be/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add firmbase-mcp --url https://api.firmbase.be/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable firmbase-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "firmbase-mcp": {
      "url": "https://api.firmbase.be/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "firmbase-mcp": {
      "type": "streamableHttp",
      "url": "https://api.firmbase.be/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start firmbase-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "firmbase-mcp": {
      "type": "http",
      "url": "https://api.firmbase.be/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http firmbase-mcp https://api.firmbase.be/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "firmbase-mcp": {
      "url": "https://api.firmbase.be/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "firmbase-mcp": {
      "serverUrl": "https://api.firmbase.be/mcp"
    }
  }
}

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