@ecosyste-ms/mcp

MCP server for querying package ecosystem data from ecosyste.ms.

Queries a local SQLite database of critical packages for fast lookups, with API fallback for packages not in the database.

Installation

npm install -g @ecosyste-ms/mcp

Or run directly with npx:

npx @ecosyste-ms/mcp

The database is bundled via @ecosyste-ms/critical. No additional setup required.

To use a custom database, set ECOSYSTEMS_DB_PATH or place critical-packages.db in your working directory.

Usage with LLM Tools

Claude Code

Open a terminal and run:

claude mcp add ecosystems -- npx @ecosyste-ms/mcp

With a custom database path:

claude mcp add ecosystems -- env ECOSYSTEMS_DB_PATH=/path/to/db.sqlite npx @ecosyste-ms/mcp

From within Claude Code, use the /mcp command to verify the server is running.

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "ecosystems": {
      "command": "npx",
      "args": ["@ecosyste-ms/mcp"]
    }
  }
}

With custom database path:

{
  "mcpServers": {
    "ecosystems": {
      "command": "npx",
      "args": ["@ecosyste-ms/mcp"],
      "env": {
        "ECOSYSTEMS_DB_PATH": "/path/to/critical-packages.db"
      }
    }
  }
}

Cursor

Add to .cursor/mcp.json in your project or ~/.cursor/mcp.json globally:

{
  "mcpServers": {
    "ecosystems": {
      "command": "npx",
      "args": ["@ecosyste-ms/mcp"]
    }
  }
}

VS Code

Open a terminal and run:

code --add-mcp '{"type":"stdio","name":"ecosystems","command":"npx","args":["@ecosyste-ms/mcp"]}'

Or manually add to .vscode/mcp.json:

{
  "servers": {
    "ecosystems": {
      "type": "stdio",
      "command": "npx",
      "args": ["@ecosyste-ms/mcp"]
    }
  }
}

Then open the .vscode/mcp.json file in VS Code and click "Start server".

Windsurf

Add to ~/.codeium/windsurf/mcp_config.json:

{
  "mcpServers": {
    "ecosystems": {
      "command": "npx",
      "args": ["@ecosyste-ms/mcp"]
    }
  }
}

Zed

Add to Zed settings (cmd+,):

{
  "context_servers": {
    "ecosystems": {
      "command": {
        "path": "npx",
        "args": ["@ecosyste-ms/mcp"]
      }
    }
  }
}

ChatGPT

Note: ChatGPT requires remote MCP servers. Run the server with a tunnel or deploy it.

For local development with a tunnel:

npx @anthropic-ai/mcp-proxy --port 8080 -- npx @ecosyste-ms/mcp

Then in ChatGPT:

Navigate to Settings > Connectors
Add a custom connector with your tunnel URL
The server will be available in Composer > Deep Research

Codex

Add to ~/.codex/config.toml:

[mcp_servers.ecosystems]
command = "npx"
args = ["@ecosyste-ms/mcp"]

Gemini CLI

Add to ~/.gemini/settings.json:

{
  "mcpServers": {
    "ecosystems": {
      "command": "npx",
      "args": ["@ecosyste-ms/mcp"]
    }
  }
}

Available Tools

Package Tools

get_package - Get full package data by ecosystem and name
lookup_package - Find package by PURL, ecosystem+name, or repository URL
get_package_versions - Get all versions with publish dates
get_package_advisories - Get security advisories (CVEs)
get_package_repository - Get repository metadata (stars, forks, language)
get_package_dependents - Get packages that depend on this package
search_packages - Full-text search (requires local database)

Registry Tools

list_registries - List all available package registries
get_database_info - Get local database stats
health_check - Check server health (database connectivity, API availability)

Examples

Ask your LLM:

"What license does lodash use?"
"Show me the CVEs for express"
"How many stars does the react repository have?"
"What packages depend on typescript?"
"Search for packages related to authentication"
"What's the latest version of axios?"

Supported Ecosystems

npm, pypi, rubygems, cargo, go, maven, nuget, packagist, hex, pub, hackage, cocoapods, conda, clojars, puppet, homebrew, docker, bower, cpan, cran, julia, swiftpm, elm, deno, alpine, actions, openvsx, spack, adelie, vcpkg, racket, bioconductor, carthage, postmarketos, elpa

Development

git clone https://github.com/ecosyste-ms/mcp
cd mcp
npm install
npm test

Run locally:

node index.js

License

MIT

Ecosyste.ms