Sigmap
97% token reduction for AI coding sessions — zero deps, 31 languages, MCP server
What is Sigmap?
Sigmap is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to 97% token reduction for ai coding sessions — zero deps, 31 languages, mcp server
97% token reduction for AI coding sessions — zero deps, 31 languages, MCP server
This server falls under the Developer Tools category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- 97% token reduction for AI coding sessions — zero deps, 31 l
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx sigmapConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Sigmap
Sigmap is a zero-dependency code-context compression tool and MCP server that reduces the token footprint of AI coding sessions by up to 97%. It extracts only the structurally relevant parts of a codebase across 31 programming languages and exposes the result through 10 on-demand MCP tools, making it easy to point AI assistants at exactly the right code context without blowing up your context window. It integrates with Claude Code, GitHub Copilot, Cursor, Windsurf, Gemini, and most other AI coding environments.
Prerequisites
- Node.js 18 or higher installed (or use the standalone binary)
- An MCP-compatible AI coding client such as Claude Code, Cursor, or Windsurf
- A local code repository to index
Install sigmap globally
Install the sigmap CLI globally via npm so it is available system-wide. Alternatively use npx to run it without a global install.
npm install -g sigmapVerify installation and check project health
Run the health check command from your project root to confirm sigmap can parse your codebase and to see a summary of supported languages found.
sigmap --healthAsk a question about your codebase
Use 'sigmap ask' to rank files by relevance to a natural-language query. This is the main command for finding where something lives in a large codebase.
sigmap ask "Where is authentication handled?"Start the MCP server
Launch sigmap in MCP server mode with the --mcp flag. This starts the server process that your MCP client will connect to, exposing 10 tools for on-demand code context.
sigmap --mcpConfigure your MCP client with the right adapter
Set the adapter flag to match your AI coding tool. The adapter controls how context is formatted for each platform's prompt style.
sigmap --mcp --adapter claude # Claude Code
sigmap --mcp --adapter cursor # Cursor / Cline
sigmap --mcp --adapter copilot # GitHub Copilot / OpenCode
sigmap --mcp --adapter windsurf # Windsurf
sigmap --mcp --adapter gemini # Google GeminiSigmap Examples
Client configuration
Add sigmap to your MCP client configuration. This example uses Claude Code with the claude adapter.
{
"mcpServers": {
"sigmap": {
"command": "sigmap",
"args": ["--mcp", "--adapter", "claude"]
}
}
}Prompts to try
These prompts work well when sigmap is providing compressed codebase context to your AI assistant.
- "Where is the authentication logic in this codebase?"
- "Show me all the files related to payment processing."
- "Validate that the context you have covers the login and session token code."
- "Score how grounded your last answer was against the actual codebase context."
- "Find where the database connection pool is configured."Troubleshooting Sigmap
sigmap command not found after global install
Ensure your npm global bin directory is on your PATH. Run 'npm bin -g' to find the directory and add it to your shell profile, or use 'npx sigmap' as an alternative.
Language files are not being indexed
Run 'sigmap --health' from the repository root to see which languages were detected. Make sure you are running sigmap from within the project directory so it can discover source files.
MCP client cannot find or launch the sigmap server
Use the full path to the sigmap binary in your MCP config args if the command is not on PATH for the client's process environment. You can find the full path with 'which sigmap'.
Frequently Asked Questions about Sigmap
What is Sigmap?
Sigmap is a Model Context Protocol (MCP) server that 97% token reduction for ai coding sessions — zero deps, 31 languages, mcp server It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Sigmap?
Follow the installation instructions on the Sigmap GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with Sigmap?
Sigmap works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Sigmap free to use?
Yes, Sigmap is open source and available under the MIT license. You can use it freely in both personal and commercial projects.
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Quick Config Preview
Add this to your claude_desktop_config.json or .cursor/mcp.json
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