Codebase Memory MCP
Overview
Open-source MCP server that indexes codebases into a persistent knowledge graph for fast structural queries by AI coding tools.
Codebase Memory MCP is an open-source code intelligence MCP server from DeusData. It indexes repositories into a persistent knowledge graph so compatible coding tools can query functions, classes, call chains, HTTP routes, and cross-service links with fewer tokens. The GitHub project describes support for tree-sitter AST analysis across 158 languages, hybrid LSP semantic type resolution for major languages including Python, TypeScript, JavaScript, PHP, C#, Go, C, C++, Java, Kotlin, and Rust, 14 MCP tools, and distribution as a single static binary for macOS, Linux, and Windows with zero dependencies.
Product overview
Capabilities, pricing and fit
Codebase Memory MCP is an open-source local code-intelligence backend for AI coding agents. It parses repositories into a persistent knowledge graph and exposes structural search, call tracing, architecture, impact, and related queries through MCP or a CLI; it contains no language model and is not itself an autonomous coding agent.
Information as of August 29, 2026
What it can do
- Persistent code knowledge graph
The native engine uses tree-sitter parsing and selected semantic type resolution to index functions, classes, call chains, routes, dependencies, and cross-service links across many languages.[1]
- Structural analysis tools
Its MCP and CLI surfaces cover architecture summaries, graph search, call tracing, impact analysis, dead-code detection, Cypher-like queries, semantic search, and a local graph visualization.[1]
- Local multi-client operation
The project ships native binaries and packages for macOS, Linux, and Windows and can connect to multiple supported coding-agent clients while keeping repository indexes local.[1], [3]
Where it fits best
- Developers and coding-agent users who need fast structural understanding, call tracing, cross-service analysis, or persistent repository context without sending code to a hosted indexing service.[1]
Pricing and availability
The project is free, open source, and MIT-licensed. It has no hosted-service subscription or built-in model fee, although users still bear any cost of the separate coding agent or model they connect.[1]
Platforms: macOS, Linux, Windows, MCP-compatible coding agents, Local CLI, Local graph UI[1], [3]
Access: Local native binary, npm, PyPI, Homebrew, Scoop, Winget, Chocolatey, AUR, Go install, Source build[1], [3]
Important considerations
- This is infrastructure rather than an agent: an MCP-compatible client supplies the language model, interprets requests, and presents results.[1]
- The program reads source files, writes agent configuration, and can spawn background processes; its security policy explicitly asks users to assess whether those access patterns fit their environment.[2]
- Core analysis stays local, but the MCP server performs a bounded background request to GitHub release metadata to check for updates unless the environment blocks it.[2]
Sources (3)
- DeusData/codebase-memory-mcpGitHub · checked 2026-08-29
- Codebase Memory MCP Security PolicyGitHub · checked 2026-08-29
- Codebase Memory MCP ReleasesChangelog · checked 2026-08-29
Autonomy level
18/100
Our subjective rating of how independently the product carries out its documented tasks, considering the human setup, input, approval and review it needs. This is not a measured success rate.
Comparisons
Custom Comparisons
Some of the use cases of Codebase Memory MCP:
- Indexing codebases into a persistent knowledge graph
- Answering structural code questions through MCP tools
- Reducing token usage during repository exploration
- Finding functions, classes, call chains, routes, and cross-service links
- Adding code intelligence to compatible coding assistants
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