# jCodeMunch MCP server

> Index a codebase with tree-sitter and retrieve exact functions, classes and outlines instead of reading whole files.

- Listing: https://mcp.tc/i/jcodemunch
- Connect: this is a local (stdio) server; install it on your machine (see Install). The listing link is a page, not an MCP endpoint.
- Type: local (stdio)
- Auth: no API key needed
- Category: [Developer Tools](https://mcp.tc/c/developer-tools)
- Vendor: jgravelle
- Homepage: <https://jcodemunch.com/>
- Repository: <https://github.com/jgravelle/jcodemunch-mcp>
- Package: pypi `jcodemunch-mcp`

## About

jCodeMunch parses source code with tree-sitter into a local index of symbols (signature, kind, qualified name, summary, byte offsets). Agents search symbols and fetch only the exact implementation they need, rather than opening whole files. It also offers structural queries such as blast radius, importers and class hierarchy, and supports 70+ languages.

It runs locally over stdio as the PyPI package jcodemunch-mcp, started with uvx or installed with uv tool install. An init command can write client config entries for Claude Code, Claude Desktop, Cursor, Windsurf and Continue. No API key is required for basic use. The project is free for personal use, and commercial use needs a license.

## What it can do

- Index a repository once into a local symbol index
- Search symbols and fetch exact function or class source
- Query file outlines, trees and scoped context bundles
- Estimate impact of a change with get\_blast\_radius
- Find importers, class hierarchies and dead code
- Parse 70+ languages via tree-sitter

## Example prompts

- "Index this repository and find where the authentication middleware is defined"
- "Show me the source of the parse\_config function only"
- "What would break if I change the User class?"
- "Find files that no other module imports"

## Install

### Claude Code

1. Run this in a terminal, in your project folder:

```bash
claude mcp add --transport stdio jcodemunch -- uvx jcodemunch-mcp
```

2. Start Claude Code and type `/mcp`. **jcodemunch** should show as connected.

Add `--scope user` to make it available in every project.

### Claude Desktop

1. Open **Settings → Developer → Edit Config**. It opens `claude_desktop_config.json`. Add:

`claude_desktop_config.json`:

```json
{
  "mcpServers": {
    "jcodemunch": {
      "command": "uvx",
      "args": [
        "jcodemunch-mcp"
      ]
    }
  }
}
```

2. Save the file and restart Claude Desktop.

Needs uv (Python) on your computer. The file lives in `~/Library/Application Support/Claude/` on macOS and `%APPDATA%\Claude\` on Windows.

### Cursor

[Add to Cursor](<https://cursor.com/install-mcp?name=jcodemunch&config=eyJjb21tYW5kIjoidXZ4IiwiYXJncyI6WyJqY29kZW11bmNoLW1jcCJdfQ%3D%3D>) (opens Cursor)

Or add it by hand to `~/.cursor/mcp.json` (all projects) or `.cursor/mcp.json` (this project):

`mcp.json`:

```json
{
  "mcpServers": {
    "jcodemunch": {
      "command": "uvx",
      "args": [
        "jcodemunch-mcp"
      ]
    }
  }
}
```

Needs uv (Python) on your computer.

### VS Code

[Install in VS Code](<https://vscode.dev/redirect/mcp/install?name=jcodemunch&config=%7B%22type%22%3A%22stdio%22%2C%22command%22%3A%22uvx%22%2C%22args%22%3A%5B%22jcodemunch-mcp%22%5D%7D>) (opens VS Code)

Or from a terminal:

```bash
code --add-mcp '{"name":"jcodemunch","type":"stdio","command":"uvx","args":["jcodemunch-mcp"]}'
```

Or commit it to the repo in `.vscode/mcp.json`:

`.vscode/mcp.json`:

```json
{
  "servers": {
    "jcodemunch": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "jcodemunch-mcp"
      ]
    }
  }
}
```

Needs uv (Python) on your computer.

### Devin Desktop

1. Add it to `~/.config/devin/mcp_config.json` (macOS and Linux) or `%APPDATA%\devin\mcp_config.json` (Windows):

`mcp_config.json`:

```json
{
  "mcpServers": {
    "jcodemunch": {
      "command": "uvx",
      "args": [
        "jcodemunch-mcp"
      ]
    }
  }
}
```

2. Refresh the MCP server list in Cascade.

Devin Desktop is the new name for Windsurf.

### Codex

```bash
codex mcp add jcodemunch -- uvx jcodemunch-mcp
```

Or edit `~/.codex/config.toml` directly:

`config.toml`:

```toml
[mcp_servers.jcodemunch]
command = "uvx"
args = ["jcodemunch-mcp"]
```

Needs uv (Python) on your computer.

### Gemini CLI

```bash
gemini mcp add jcodemunch uvx jcodemunch-mcp
```

This adds it to the current project. Add `-s user` to use it everywhere.

### Any client

Most clients that start local servers accept this shape:

```json
{
  "mcpServers": {
    "jcodemunch": {
      "command": "uvx",
      "args": [
        "jcodemunch-mcp"
      ]
    }
  }
}
```

Zed puts servers under `context_servers` in its settings, with the same `command`, `args` and `env` fields.

Needs uv (Python) on your computer.

## Recent changes

- 2026-10-07 19:31 UTC: New version 1.108.332 (was 1.108.331), read from PyPI. Source: automatic check.
- 2026-10-06 21:22 UTC: Tracking started: version 1.108.331. Source: automatic check.

More on the History tab, with descriptions before and after for the newest entries: https://mcp.tc/i/jcodemunch#history (Atom feed: https://mcp.tc/i/jcodemunch/history.xml). It records what mcp.tc's anonymous checks saw, every 3 hours where the tool list can be read without sign-in; it is not a security review.

## Details

- Server version: 1.108.333
- Last checked: 2026-10-05
- Listed: 2026-10-05
- Updated: 2026-10-05

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Source: https://mcp.tc/i/jcodemunch (mcp.tc is an independent directory, not affiliated with this server's publisher). Corrections: https://mcp.tc/report