jCodemunch MCP
The most token-efficient MCP server for precise source code retrieval via tree-sitter AST parsing. Cut AI token costs 86-99% on code exploration (96% average, benchmarked at 28.3x fewer tokens than a grep-and-read agent) and stop burning your context window reading entire files. It runs locally over stdio via the published package.
People who work with ai coding, ast and code intelligence and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Python.
VERIFIED ACTIVE
LAST COMMIT 2026-09-18 · ★ 2,690 · #4 OF 945 MAINTAINED OTHER · VERIFIED 2026-09-18
NOASSERTION · Python servers · how we verify → /methodology
01 · Install jCodemunch MCP
before you install - you'll need
The README does not document required environment variables for a basic install.
Claude Code
claude mcp add jgravelle-jcodemunch-mcp -- uvx jcodemunch-mcpClaude Desktop / Cursor / VS Code - add to config
{
"mcpServers": {
"jgravelle-jcodemunch-mcp": {
"command": "uvx",
"args": [
"jcodemunch-mcp"
]
}
}
}Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.
Using another client? Same JSON, different key
Claude Desktop · mcpServers
Cursor · mcpServers
VS Code · servers
Windsurf · mcpServers
Zed · context_servers
Cline · mcpServers
Roo Code · mcpServers
Continue · mcpServers
LibreChat · mcpServers
Gemini CLI · mcpServers
Codex CLI · mcp_servers
Full setup guides: every client.
02 · Evidence
Security posture
What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.
runs as local process (stdio) - runs on your machine with your user's permissions
license no standard license detected - usage rights unclear; check the repo before commercial use
pypi package jcodemunch-mcp - check the name against the project README before installing (PyPI has no namespace ownership)
registry namespace io.github.jgravelle is GitHub-verified and matches the repo owner
03 · What jCodemunch MCP can do
Prose above is summarized from the project's README and registry record - no invented capabilities.
Latest releases
v1.108.319 · 2026-09-16
Fixed - the published benchmark tables are derived from the reference, not from three different runs (W-16) · /release step 4 recomputes every published figure and refuses on a · disagreement. It refused three…
v1.108.318 · 2026-09-11
Three layers ship in this block, every one off by default where it can act: the workflows layer (seven Claude Code commands and the hooks that refuse a commit without the fast tier, a PR without a full-tier run on the…
v1.108.317 · 2026-09-04
Changed - CI runs the harness on every change; publishing is a dispatched workflow · The eight workflows are five: pr-gate.yml (five staged jobs, every one a · required check on main by name), main.yml (full witness +…
04 · Who maintains jCodemunch MCP
jCodemunch MCP is maintained by jgravelle. We track 4 MCP servers from jgravelle - 4 actively maintained, 3,007 combined GitHub stars, oldest repo from Feb 2026. Full record: all servers from jgravelle.
- jDocmunch MCP Section-level doc search for .md, .rst, .adoc, .ipynb, .html, .yaml, .json, and OpenAPI specs. ★ 203
- jDataMunch MCP Tabular data retrieval. Index CSV/Excel, query rows, aggregate. 99%+ savings vs raw file reads. ★ 81
- jmunch-mcp Transparent MCP proxy. Turns fat tool responses into queryable handles: 88-99% fewer tokens. ★ 33
05 · Facts
- repository
- github.com/jgravelle/jcodemunch-mcp
- category
- other - ranked #4 of 945 actively-maintained other servers as of 2026-09-18.
- release cadence
- 10+ releases in the last 90 days (latest 2026-09-16)
- registry
- io.github.jgravelle/jcodemunch-mcp (active, first published 2026-03-21 · 63 versions)
- packages
- pypi:jcodemunch-mcp
06 · jCodemunch MCP FAQ
What is jCodemunch MCP?
The most token-efficient MCP server for precise source code retrieval via tree-sitter AST parsing. Cut AI token costs 86-99% on code exploration (96% average, benchmarked at 28.3x fewer tokens than a grep-and-read agent) and stop burning your context window reading entire files. It runs locally over stdio via the published package.
Is jCodemunch MCP still maintained?
Yes - as of 2026-09-18, its last commit was 2026-09-18 and it shipped 10+ releases in the last 90 days. We re-verify nightly.
How do I install jCodemunch MCP?
Run `uvx jcodemunch-mcp`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.
Does jCodemunch MCP run locally?
Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.
07 · Alternatives to jCodemunch MCP
Alternatives to jCodemunch MCP
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