MCP Tool Connector

An MCP server that gives an LLM host (e.g. Claude) two tools: it can search the firm's documents and look up a company via an authenticated API — the "connect frontier models to our files and data, with auth" use case.

Demo

Register the server with Claude Desktop, then ask Claude something that triggers search_documents, and something that triggers lookup_company. (Add a Loom here.)

Related MCP server: GraphRAG MCP

What it does

Exposes two tools over the Model Context Protocol:

• search_documents(query, k) — makes a document folder query-able (no auth).

• lookup_company(name) — calls an authenticated external API (bearer token), making the API + authentication path explicit.

Authentication (done on purpose)

lookup_company reads DATA_API_TOKEN from the environment (never hardcoded) and returns a clear "authentication required" message when it is absent rather than failing silently. Use a scoped, read-only token; full OAuth is the production step.

Run it

pip install -r requirements.txt
pytest -q                      # tools work + both register with the MCP server
python server.py               # run as an MCP (stdio) server

Then add it to Claude Desktop using claude_desktop_config.example.json (use an absolute path to server.py). Confirm the exact MCP SDK usage against the current docs at modelcontextprotocol.io.

Built with

Python · MCP Python SDK (FastMCP) · httpx