How do I install the polycodegraph mcp server?

Run it through your MCP client's configuration using `uvx polycodegraph`. Add the server block to Claude Desktop's config file (or use `claude mcp add` for Claude Code), restart the client, and the tools appear automatically. Full snippets are on this page.

Does the polycodegraph mcp server need an API key?

No API key is documented for this server, so it should start without additional credentials. Because it runs locally, it inherits whatever access your machine already has — worth keeping in mind when you decide what to point it at.

Polycodegraph MCP Server — Install Guide & Tools

What is the Polycodegraph MCP server?

Multi-language code graph builder, analyzer, PR risk reviewer, and MCP server. Supports Python, TypeScript, JavaScript, and Go. Exposed over MCP by the polycodegraph mcp server, that capability becomes something an assistant can invoke while it works, not something you go and do afterwards.

What it actually does

That's it. Three commands and you have a queryable graph, a 3D dashboard, and an MCP server your IDE can talk to.

Adding it to your client

polycodegraph on PyPI is all you need. Most clients run it directly, so configuration is a few lines and a restart.

Its toolset

Everything the assistant can do here goes through one of these:

Configuration — Correct
fastapi — The fastapi tool exposed by this server

Caveats

It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
MCP clients confirm each tool call by default. Leave that on until you have watched what the polycodegraph mcp server does with a few real requests.

When to reach for it

Plenty of developer tooling servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. Polycodegraph's toolset — Configuration, fastapi — is a fair guide to whether it matches your workflow.

SyncDev reviews every entry in this directory against the project's own documentation before publishing, and revisits them as servers change.

Available tools

Tool	What it does
Configuration	Correct
fastapi	The fastapi tool exposed by this server.

How to install the Polycodegraph MCP server

{
  "mcpServers": {
    "polycodegraph": {
      "command": "uvx",
      "args": ["polycodegraph"]
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Example prompts to try

“Use Polycodegraph to Configuration.”
“Use Polycodegraph to fastapi.”

Frequently asked questions

It connects Polycodegraph to MCP-compatible AI assistants such as Claude and Cursor, exposing 2 tools (Configuration, fastapi) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Polycodegraph directly.

Polycodegraph MCP Server

What is the Polycodegraph MCP server?

What it actually does

Adding it to your client

Its toolset

Caveats

When to reach for it

Available tools

How to install the Polycodegraph MCP server

Example prompts to try

Frequently asked questions

Alternatives to the Polycodegraph MCP server

Context7

Playwright

GitHub

Linear

Git

Time

Polycodegraph MCP Server

What is the Polycodegraph MCP server?

What it actually does

Adding it to your client

Its toolset

Caveats

When to reach for it

Available tools

How to install the Polycodegraph MCP server

Example prompts to try

Frequently asked questions

What does the polycodegraph mcp server do?

How do I install the polycodegraph mcp server?

Does the polycodegraph mcp server need an API key?

Alternatives to the Polycodegraph MCP server

Context7

Playwright

GitHub

Linear

Git

Time