jCodeMunch

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 you 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

Tools

Local servers list their tools once they’re running, and this one doesn’t publish its list in advance. Your client shows them after you add it.

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

Set up

Every client starts jCodeMunch on your machine with the same command. Pick yours; the page remembers your choice.

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

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

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

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

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

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

codex mcp add jcodemunch -- uvx jcodemunch-mcp

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

gemini mcp add jcodemunch uvx jcodemunch-mcp

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

Embed

Show jCodeMunch in a README or on your site. Each embed links to this page, uses the server’s own install command, and sets no cookies. How embeds work

The card, the iframe and the JSON are in English. Add ?lang=it, fr, de or es to their address for another language.

README badge Website card iframe JSON AI prompt

README badge

Markdown

[![jCodeMunch on mcp.tc](https://mcp.tc/i/jcodemunch/badge.svg)](https://mcp.tc/i/jcodemunch)

HTML

<a href="https://mcp.tc/i/jcodemunch"><img src="https://mcp.tc/i/jcodemunch/badge.svg" alt="jCodeMunch on mcp.tc" height="20"></a>

It follows the reader’s light or dark mode. Add ?theme=light or ?theme=dark to fix it, or ?style=compact to show the mark without the word.

Website card

HTML

<script src="https://mcp.tc/w/jcodemunch.js" async></script>

The card appears where the tag is. Add data-theme="dark" or data-size="compact" to the tag to change it. The file holds everything it needs, so it makes no other requests and sets no cookies.

iframe

HTML

<iframe src="https://mcp.tc/embed/jcodemunch" title="jCodeMunch on mcp.tc" width="420" height="200" loading="lazy" allow="clipboard-write" style="border:0;border-radius:8px;max-width:100%"></iframe>

Use it on pages that don’t allow scripts. Add ?theme=light or ?theme=dark to the address to fix the colors.

JSON

The listing as data for your own pages and tools: name, tagline, install command, tools and the “Add to” links. Any site can read it (CORS is open).

https://mcp.tc/i/jcodemunch.json

What each field means

AI prompt

Paste this into an AI coding assistant, such as Claude Code or Cursor, and it adds the jCodeMunch card to your site.

Markdown

Add the mcp.tc card for jCodeMunch, an MCP server, to my website. It is one static script: no build step, no package to install, no cookies.

Put this tag where the card should appear. The card renders right before it:

```html
<script src="https://mcp.tc/w/jcodemunch.js" async></script>
```

To show the card somewhere else, put this placeholder there and load the same script once, for example before `</body>`. Keep the link inside: visitors without JavaScript see it.

```html
<div data-mcptc="jcodemunch"><a href="https://mcp.tc/i/jcodemunch">jCodeMunch on mcp.tc</a></div>
```

Options:
- `data-theme="light"` or `"dark"` on the tag or the placeholder fixes the colors. Without it, the card follows the visitor’s light or dark mode.
- `data-size="compact"` gives a smaller card without the tagline.
- The CSS variable `--mcptc-max-width` on the placeholder or a parent sets the width (default `520px`).
- `?lang=` on the script URL sets the card’s language: `en`, `it`, `fr`, `de` or `es`.

If the site has a Content Security Policy, allow `script-src https://mcp.tc` and `img-src data:` (the icon is inline).

For a README or other Markdown docs, use the badge instead:

```markdown
[![jCodeMunch on mcp.tc](https://mcp.tc/i/jcodemunch/badge.svg)](https://mcp.tc/i/jcodemunch)
```

Reference: https://mcp.tc/embed

Change history

This server runs on your computer, so we follow its PyPI package: each new version shows up here, with edits by its owner.

1. 7 Oct 2026, 19:31 UTC, Automatic check

   New version 1.108.332 (was 1.108.331). Read from PyPI.

2. 6 Oct 2026, 21:22 UTC, Automatic check

   Tracking started: version 1.108.331.

FAQ