Tree Sitter MCP Server

A Model Context Protocol (MCP) server that provides code analysis capabilities using tree-sitter, designed to give AI assistants intelligent access

Local serverstdioPython

What is the Tree Sitter MCP server?

Connect Tree Sitter to Claude, Cursor or any other MCP client and it stops being a tab you switch to. A Model Context Protocol (MCP) server that provides code analysis capabilities using tree-sitter, designed to give AI assistants intelligent access to codebases with appropriate context management. Claude Desktop is the reference. The tree sitter mcp server is what makes that connection.

What the server does

The preferred_languages setting controls which language parsers are pre-loaded at server startup rather than on-demand. This provides several benefits:

  • 🔍 Flexible Exploration: Examine code at multiple levels of granularity
  • 🧠 Context Management: Provides just enough information without overwhelming the context window
  • 🌐 Language Agnostic: Supports many programming languages including Python, JavaScript, TypeScript, Go, Rust, C, C++, C#, Swift, Java, Kotlin, Dart, Julia, and APL via tree-sitter-language-pack
  • 🌳 Structure-Aware: Uses AST-based understanding with efficient cursor-based traversal
  • 🔎 Searchable: Find specific patterns using text search and tree-sitter queries
  • 🔄 Caching: Optimized performance through parse tree caching

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

  • Prerequisites — The Prerequisites tool exposed by this server

Installation

Installation goes through your MCP client rather than a global install: point it at mcp-server-tree-sitter on PyPI and it is fetched when the client starts. The copy-paste blocks for Claude Desktop, Claude Code and Cursor are further down this page.

Credentials and setup notes

Configuration is passed through the environment: MCP_TS_LOG_LEVEL, MCP_TS_CACHE_MAX_SIZE_MB, MCP_TS_CONFIG_PATH. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

  • Python 3.10+ - Tree-sitter language parsers for your preferred languages

Where it fits

This sits in the developer tooling group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Tree Sitter's toolset — Prerequisites — is a fair guide to whether it matches your workflow. It is maintained by wrale; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against Tree Sitter's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.

Worth knowing first

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
PrerequisitesThe Prerequisites tool exposed by this server.

How to install the Tree Sitter MCP server

{
  "mcpServers": {
    "server-tree-sitter": {
      "command": "uvx",
      "args": ["mcp-server-tree-sitter"],
      "env": {
        "MCP_TS_LOG_LEVEL": "your-value",
        "MCP_TS_CACHE_MAX_SIZE_MB": "your-value",
        "MCP_TS_CONFIG_PATH": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

  • Python 3.10+ - Tree-sitter language parsers for your preferred languages
VariableDescriptionRequired
MCP_TS_LOG_LEVELConfiguration value read at startup.Optional
MCP_TS_CACHE_MAX_SIZE_MBConfiguration value read at startup.Optional
MCP_TS_CONFIG_PATHFilesystem location the server is allowed to use.Optional

Example prompts to try

  • Use Tree Sitter to Prerequisites.

Frequently asked questions

It connects Tree Sitter to MCP-compatible AI assistants such as Claude and Cursor, exposing 1 tool (Prerequisites) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Tree Sitter directly.