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flowR

flowR is an MCP server that adds database tools to AI assistants such as Claude Desktop, Claude Code and Cursor. Static dataflow analysis, program slicing, linting, and dependency extraction for R code. It has 105 GitHub stars, is released under the GPL-3.0 license and runs locally with npx -y @eagleoutice/flowr-mcp.

github.com/flowr-analysis/flowr (opens in a new tab)

Data as of from the GitHub API and the official MCP registry; description from the project's repository. Report an error

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Install flowR

Generated from the server's MCP registry entry. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "flowr": {
      "command": "npx",
      "args": [
        "-y",
        "@eagleoutice/flowr-mcp"
      ]
    }
  }
}

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

Claude Code

claude mcp add --transport stdio flowr -- npx -y @eagleoutice/flowr-mcp

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "flowr": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@eagleoutice/flowr-mcp"
      ]
    }
  }
}

Project file; use ~/.cursor/mcp.json to enable it in every project.

VS Code

.vscode/mcp.json
{
  "servers": {
    "flowr": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@eagleoutice/flowr-mcp"
      ]
    }
  }
}

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

About flowR

A Model Context Protocol server with a single query tool that lets LLM clients analyze R code with flowR: slicing, linting, dependencies, version guessing, signature database search, and every other query of the Query API. No R installation is needed.

  • dataflow-analysis
  • program-slicing
  • r
  • static-analyzer
  • static-program-analysis
  • abstract-interpretation
  • linter
  • program-comprehension
  • r-language

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FAQ

flowR FAQ

Still curious? Email info@appsgit.com.

How do I install the flowR MCP server?

Add the command npx -y @eagleoutice/flowr-mcp to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is flowR free?

The server is open source under the GPL-3.0 license, so running it is free. It does not declare any required API key.

Is flowR actively maintained?

The most recent commit was on Oct 25, 2026. The latest release is v2.16.6, published Oct 22, 2026. appsgit only lists MCP servers with a commit in the last six months.