Codebase Memory MCP
DeusData
Code-intelligence MCP server - a persistent knowledge graph over 158 languages via tree-sitter AST parsing.
What is Codebase Memory MCP?
Codebase Memory MCP builds a persistent structural knowledge graph of a codebase with tree-sitter AST parsing and lightweight type resolution for 9 languages. It runs as an MCP server with 14 tools so agents query call graphs, symbols, dead code and cross-service links instead of searching files. It ships as a single static binary with SLSA Level 3 provenance and claims sub-millisecond graph queries (project's own claim).
Pros & Cons
Pros
- Single static binary with zero runtime dependencies - no vector DB to set up first
- SLSA Level 3 provenance and 5,600+ passing tests signal rigorous engineering
- 158-language indexing with deep resolution for 9 languages
Cons
- Token-reduction claims are the project's own with no third-party reproduction
- Value is gated on MCP-capable assistant support - less useful standalone
- Structural graph tool, not a semantic embedding search
License
MIT (OSI-open)
When it is interesting
Using an MCP-capable assistant on a large or unfamiliar codebase where file search wastes context budget.
When it is too early
If you want general-purpose semantic RAG over code rather than a structural graph.
Commercial alternative & related
- Commercial counterpart: Sourcegraph Cody
This repo featured in the 2026-07 edition of the Open-Source AI Radar.
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