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PopNx MCPMCP servers for people who use AI · explained in plain words

Code-Graph-RAG

by vitali87version 0.6.30i★ 5,349iRuns on your computer
Registry nameio.github.vitali87/code-graph-rag

How to install

What it does

Knowledge-graph RAG for multi-language codebases: index, query and edit code in natural language.

  • Connects Runs on your computer
  • Account or key Needs ORCHESTRATOR_API_KEY, CYPHER_API_KEY
  • Category Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Passed 3/3 checks · Runs on your computer · ✓ Commands checked Nov 13, 2026

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude, with some setup first

You need a Code-Graph-RAG key (create it on the maker’s site) · Install Python (uv) on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

  1. Install Python (uv)

    One time only; it works for every server that needs Python (uv)

    Open the Python (uv) download page ↗

  2. Sign up and create a Code-Graph-RAG key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    Open the Code-Graph-RAG site ↗

  3. Open the Claude desktop app’s settings file

    SettingsDeveloperEdit Config

  4. Paste these settings and save the file

    {
      "mcpServers": {
        "code-graph-rag": {
          "command": "uvx",
          "args": [
            "code-graph-rag",
            "mcp-server"
          ],
          "env": {
            "ORCHESTRATOR_PROVIDER": "your-value",
            "ORCHESTRATOR_MODEL": "your-value",
            "ORCHESTRATOR_API_KEY": "your-value",
            "CYPHER_PROVIDER": "your-value",
            "CYPHER_MODEL": "your-value",
            "CYPHER_API_KEY": "your-value",
            "MEMGRAPH_HOST": "your-value",
            "MEMGRAPH_PORT": "your-value",
            "TARGET_REPO_PATH": "your-value"
          }
        }
      }
    }

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Quit Claude and open it again

  6. Try it

    Use Code-Graph-RAG and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using Code-Graph-RAG or shows a Code-Graph-RAG tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect Code-Graph-RAG yet

Code-Graph-RAG runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect Code-Graph-RAG

  • You need a Code-Graph-RAG key (create it on the maker’s site) · Install Python (uv) on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
  • You need a Code-Graph-RAG key (create it on the maker’s site) · Install Python (uv) on your computer first (one time)
  • You need a Code-Graph-RAG key (create it on the maker’s site) · Install Python (uv) on your computer first (one time)
  • You need a Code-Graph-RAG key (create it on the maker’s site) · Install Python (uv) on your computer first (one time)

B · Others in Search & AI memory that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Works with Claude Code, with some setup first

You need a Code-Graph-RAG key (create it on the maker’s site) · Install Python (uv) on your computer first (one time)

  1. Install Python (uv)

    One time only; it works for every server that needs Python (uv)

    Open the Python (uv) download page ↗

  2. Sign up and create a Code-Graph-RAG key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    Open the Code-Graph-RAG site ↗

  3. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  4. Paste this command and press Enter

    claude mcp add --scope user code-graph-rag --env ORCHESTRATOR_PROVIDER=your-value --env ORCHESTRATOR_MODEL=your-value --env ORCHESTRATOR_API_KEY=your-value --env CYPHER_PROVIDER=your-value --env CYPHER_MODEL=your-value --env CYPHER_API_KEY=your-value --env MEMGRAPH_HOST=your-value --env MEMGRAPH_PORT=your-value --env TARGET_REPO_PATH=your-value -- uvx code-graph-rag mcp-server

    Replace “your-value” with your key before pressing Enter

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Type /mcp in Claude Code

    You should see Code-Graph-RAG listed as connected

  6. Try it

    Use Code-Graph-RAG and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using Code-Graph-RAG or shows a Code-Graph-RAG tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

You need a Code-Graph-RAG key (create it on the maker’s site) · Install Python (uv) on your computer first (one time)

  1. Install Python (uv)

    One time only; it works for every server that needs Python (uv)

    Open the Python (uv) download page ↗

  2. Sign up and create a Code-Graph-RAG key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    Open the Code-Graph-RAG site ↗

  3. Click this button to open Cursor

    Open in Cursor

    Cursor asks you to confirm; click Install

  4. Fill in your key

    In the Code-Graph-RAG settings, ORCHESTRATOR_PROVIDER, ORCHESTRATOR_MODEL, ORCHESTRATOR_API_KEY, CYPHER_PROVIDER, CYPHER_MODEL, CYPHER_API_KEY, MEMGRAPH_HOST, MEMGRAPH_PORT, TARGET_REPO_PATH is empty; add your key and save

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Open the AI chat in Cursor in Agent mode

  6. Try it

    Use Code-Graph-RAG and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using Code-Graph-RAG or shows a Code-Graph-RAG tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

You need a Code-Graph-RAG key (create it on the maker’s site) · Install Python (uv) on your computer first (one time)

  1. Install Python (uv)

    One time only; it works for every server that needs Python (uv)

    Open the Python (uv) download page ↗

  2. Sign up and create a Code-Graph-RAG key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    Open the Code-Graph-RAG site ↗

  3. Click this button to open VS Code

    Open in VS Code

    VS Code asks you to confirm; click Install

  4. Fill in your key

    In the Code-Graph-RAG settings, ORCHESTRATOR_PROVIDER, ORCHESTRATOR_MODEL, ORCHESTRATOR_API_KEY, CYPHER_PROVIDER, CYPHER_MODEL, CYPHER_API_KEY, MEMGRAPH_HOST, MEMGRAPH_PORT, TARGET_REPO_PATH is empty; add your key and save

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Open the AI chat in VS Code in Agent mode

  6. Try it

    Use Code-Graph-RAG and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using Code-Graph-RAG or shows a Code-Graph-RAG tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use Code-Graph-RAG💬 Discussion →
For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user code-graph-rag --env ORCHESTRATOR_PROVIDER=your-value --env ORCHESTRATOR_MODEL=your-value --env ORCHESTRATOR_API_KEY=your-value --env CYPHER_PROVIDER=your-value --env CYPHER_MODEL=your-value --env CYPHER_API_KEY=your-value --env MEMGRAPH_HOST=your-value --env MEMGRAPH_PORT=your-value --env TARGET_REPO_PATH=your-value -- uvx code-graph-rag mcp-server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "code-graph-rag": {
      "command": "uvx",
      "args": [
        "code-graph-rag",
        "mcp-server"
      ],
      "env": {
        "ORCHESTRATOR_PROVIDER": "your-value",
        "ORCHESTRATOR_MODEL": "your-value",
        "ORCHESTRATOR_API_KEY": "your-value",
        "CYPHER_PROVIDER": "your-value",
        "CYPHER_MODEL": "your-value",
        "CYPHER_API_KEY": "your-value",
        "MEMGRAPH_HOST": "your-value",
        "MEMGRAPH_PORT": "your-value",
        "TARGET_REPO_PATH": "your-value"
      }
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "code-graph-rag": {
      "command": "uvx",
      "args": [
        "code-graph-rag",
        "mcp-server"
      ],
      "env": {
        "ORCHESTRATOR_PROVIDER": "your-value",
        "ORCHESTRATOR_MODEL": "your-value",
        "ORCHESTRATOR_API_KEY": "your-value",
        "CYPHER_PROVIDER": "your-value",
        "CYPHER_MODEL": "your-value",
        "CYPHER_API_KEY": "your-value",
        "MEMGRAPH_HOST": "your-value",
        "MEMGRAPH_PORT": "your-value",
        "TARGET_REPO_PATH": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "code-graph-rag": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "code-graph-rag",
        "mcp-server"
      ],
      "env": {
        "ORCHESTRATOR_PROVIDER": "your-value",
        "ORCHESTRATOR_MODEL": "your-value",
        "ORCHESTRATOR_API_KEY": "your-value",
        "CYPHER_PROVIDER": "your-value",
        "CYPHER_MODEL": "your-value",
        "CYPHER_API_KEY": "your-value",
        "MEMGRAPH_HOST": "your-value",
        "MEMGRAPH_PORT": "your-value",
        "TARGET_REPO_PATH": "your-value"
      }
    }
  }
}

Values you fill in

  • ORCHESTRATOR_PROVIDER env
    LLM provider for the orchestrator agent (openai, anthropic, google, azure, cohere, ollama)
  • ORCHESTRATOR_MODEL env
    Model name for the orchestrator agent
  • ORCHESTRATOR_API_KEY secret env
    API key for the orchestrator LLM provider (not needed for the default local ollama provider)
  • CYPHER_PROVIDER env
    LLM provider for Cypher query generation (openai, anthropic, google, azure, cohere, ollama)
  • CYPHER_MODEL env
    Model name for Cypher query generation
  • CYPHER_API_KEY secret env
    API key for the Cypher LLM provider (not needed for the default local ollama provider)
  • MEMGRAPH_HOST env
    Hostname of the Memgraph database
  • MEMGRAPH_PORT env
    Port of the Memgraph database
  • TARGET_REPO_PATH env
    Path to the repository to analyze (auto-detected from working directory if not set)

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

Downloads per weeki
869/wk
Connection
Runs on your computer
Latest versioni
0.6.30
Published to registryi
Nov 10, 2026
Code last changedi
Nov 12, 2026
Maker
vitali87
Packages
pypi: code-graph-rag
Registry status
Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

ClaudeGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatRaycast

All apps, with pros and cons →

Related guides

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 13, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account vitali87, which owns the repo

  • ✓ Pass

    Still maintained

    Code last changed yesterday

  • ✓ Pass

    Has a licence

    Uses MIT

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

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Posts here are written by users, not the PopNx team.

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User reviews

No reviews yet

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Compared with others in Search & AI memoryi

  • More stars than 99% of the other 6045 servers in this category
  • Published to the registry more recently than 90% of the other 6045 servers in this category
  • Basic checks equal to or better than 100% of the other 6045 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Code-Graph-RAG safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: ORCHESTRATOR_API_KEY, CYPHER_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed yesterday, and the latest version (0.6.30) reached the registry 3 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: Context7, Codebase Memory, Ruflo

Others in the same category

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

by upstashWidely used↓ 1.2M/wk★ 64.7KUpdated yesterday

Computer or cloud

Codebase Memory

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

by DeusDataWidely used↓ 16.8K/wk★ 48.6KUpdated 27 days ago

Runs on your computer

Ruflo

Agent teams, swarms, memory and hooks for Claude Code and Codex, served over MCP.

by ruvnetWidely used↓ 74.3K/wk★ 81.6K Stars for the whole repoUpdated today

Runs on your computer

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Code-Graph-RAG

Code-Graph-RAG parses a multi-language codebase with Tree-sitter, sharpened by compiler-grade frontends and runtime traces where available, builds a knowledge graph of its structure in an embedded graph database that needs no server, and lets you query, edit, and optimise that code in plain English. It works across a monorepo of mixed languages under one unified graph schema.

  1. Index: cgr start --update-graph parses a repository into a knowledge graph (sped up)
  1. Ask: cgr start answers questions and edits code, grounded in that graph

Latest News 🔥

  • Rust Upgrade: Updated Rust to version 1.99.1-slim-trixie.
  • Signature Functionality: Added support for reading and writing JavaScript headers for change signatures, including the ability to change the signature of JavaScript functions or methods.
  • macOS Compatibility: The build now leaves macOS-14 support.

See NEWS.md for the full history.

What It Does

Point Code-Graph-RAG at a repository and it reads every source file, extracts functions, classes, methods, modules, and the relationships between them, and stores the result as an interconnected graph. Once the graph exists you can:

  • Ask questions about the codebase in natural language and get answers grounded in the real structure.
  • Retrieve the actual source of any function, class, or method by name or by intent.
  • Edit code through the agent with AST-based surgical patching and a diff preview before anything changes.
  • Optimise code against language best practices or your own coding standards.
  • Find dead code by walking call and reference edges from entry points.
  • Search and rewrite structurally by AST pattern with ast-grep.
  • Overlay runtime behaviour: trace a test run (or pull production eBPF profiles) with cgr trace and merge the calls that actually happened into the graph, exposing dispatch that static analysis cannot see.

How It Works

The system has two components:

  1. Multi-language parser. A Tree-sitter based parser reads the codebase and ingests functions, classes, methods, modules, and their relationships into the graph under a single language-agnostic schema. Where a toolchain is available, compiler-grade frontends layer exact facts on top (libclang for C/C++, go/types for Go, and opt-in Roslyn, javac and Jedi for C#, Java and Python), and dynamic tracing merges calls observed at runtime. Tree-sitter stays the backbone: a trace only sees code that ran, and a compiler frontend only covers what its toolchain can build.
  2. RAG system (codebase_rag/). An interactive CLI that turns natural language into Cypher queries, retrieves matching code, and drives AI-powered editing and optimisation.
Source Code -> Tree-sitter Parser -> AST Analysis -> Knowledge Graph

| User Query -> AI Model (Cypher Gen) -> Cypher Query -> Graph Results -> Response

The graph is stored in an embedded SQLite file by default. Memgraph and Neo4j are opt-in backends that run the same Cypher; Graph Backends compares them.

See the Architecture Overview and Graph Schema for the full picture.

Supported Languages

Python, TypeScript, TSX, JavaScript, Rust, Go, Java, C, C++, C#, PHP, Lua, Dart, and Julia are fully supported. Scala is in development, and Ruby, Kotlin, Swift, Elixir, Haskell, Solidity, Bash, and Nix have structural support (modules, functions, classes where the language has them, and imports) through the pluggable ast-grep tier. See the Language Support matrix for per-language capabilities.

Installation

cgr is published to PyPI. Install it system-wide with the treesitter-full (tree-sitter grammars), ast-grep (Ruby, Kotlin, Swift, Elixir, Haskell, Solidity, Bash, Nix) and semantic (vector search) extras:

# with uv (recommended)

uv tool install "code-graph-rag[treesitter-full,ast-grep,semantic]"

or with pipx

pipx install "code-graph-rag[treesitter-full,ast-grep,semantic]"

Which version am I getting?

Three version lines exist and they intentionally differ:

wherewhat it tracks
git tagsevery version, one per merge
GitHub Releases (binaries, signatures)every 50th version, plus any security fix, breaking change or merge labelled release now
PyPIevery 50th version, plus any security fix, breaking change or merge labelled release now

So the newest tag on main usually runs ahead of the newest release, often by tens of patch versions; they coincide only just after a release. Nothing is stuck, the cadences differ by design. A security fix, a breaking change or a merge a maintainer labels release now does NOT wait for the cadence: each ships a release and a PyPI upload immediately.

uv tool install and pipx install give you the newest PyPI version, which is the newest RELEASE, not the newest tag. Interim tags exist so every merge is addressable; binaries and PyPI uploads follow the cadence above.

To run code newer than the latest release, install from git:

uv tool install "code-graph-rag[treesitter-full,ast-grep,semantic] @ git+https://github.com/vitali87/code-graph-rag@main"

To upgrade an existing install, run uv tool upgrade code-graph-rag (with pipx, pipx upgrade code-graph-rag, or pipx reinstall code-graph-rag for a git install). Upgrade covers the other install methods.

You also need Python 3.12+ and ripgrep. The graph lives in an embedded SQLite file by default, so there is no database server to run: no Docker and no cmake. Memgraph and Neo4j remain available as opt-in backends (Graph Backends). Full prerequisites, source installs, and environment setup are in the Installation guide.

[!NOTE]

The wheel is pure Python (py3-none-any), so it installs on any platform with Python 3.12 or newer. Older system interpreters (Debian Bookworm ships 3.11) need the interpreter pinned explicitly; see Installation for the commands.

Quick Start

# Parse a repository into the graph, then query it

cgr start --repo-path /path/to/repo --update-graph cgr start --repo-path /path/to/repo

The graph is written to ~/.cgr/graph.sqlite (set SQLITE_GRAPH_PATH to move it). To use Memgraph instead, install the driver with the memgraph extra, set GRAPH_BACKEND=memgraph, and start the packaged Memgraph + Qdrant stack with cgr daemon up.

Repeat the first command for each repository you want indexed; the graph is shared, and syncing one project leaves the others alone. To start over from an empty graph, add --clean — it deletes every project in the shared graph, not just this one, and asks for confirmation first when other projects would be destroyed.

A default index leaves out the opt-in capture groups; add them with --capture or CGR_CAPTURE.

The Quick Start guide walks through parsing, querying, and exporting in five minutes.

MCP Server

Code-Graph-RAG runs as an MCP server so Claude Code and other MCP clients can query and edit your codebase directly. See the MCP Server guide for setup.

Documentation

Getting Started

User Guide

Architecture

Python SDK

Advanced

Enterprise Services

Code-Graph-RAG is open source and free to use. For organisations that need more, we offer fully managed cloud-hosted solutions and on-premise deployments:

-

Only the beginning is shown; read the rest in the repo