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aasper03

reddit-mcp

by aasper03
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Python
Local

reddit-mcp

Headless Reddit MCP server for Cursor. Posts replies using your logged-in Chrome session cookies (via Chrome DevTools Protocol), driving old.reddit.com's comment form.

Reddit's official script OAuth apps are gated behind approval. This uses your own browser session instead.

Tools

Tool

Purpose

reddit_whoami

Current session username

reddit_refresh_session

Pull fresh cookies from CDP Chrome (:9222)

reddit_reply

Reply to a post/comment URL

reddit_test_reply

Harmless test comment on r/test

Related MCP server: mcp-reddit

Requirements

  • Python 3.11+

  • Playwright Chromium

  • Chrome running with remote debugging, logged into Reddit:

    google-chrome --remote-debugging-port=9222 --user-data-dir="$HOME/.config/google-chrome-cdp"

Install

git clone https://github.com/aasper03/reddit-mcp.git ~/.reddit-mcp
cd ~/.reddit-mcp
python3 -m venv .venv
.venv/bin/pip install -r requirements.txt
.venv/bin/playwright install chromium
chmod +x run-reddit-mcp.sh

Add to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "reddit": {
      "command": "/home/YOU/.reddit-mcp/run-reddit-mcp.sh",
      "args": []
    }
  }
}

Optional: REDDIT_CDP_URL (default http://127.0.0.1:9222).

CLI

# after install, symlink optional:
ln -sf ~/.reddit-mcp/run-reddit-mcp.sh /dev/null  # MCP only

# or use the client via:
.venv/bin/python -c 'from client import get_username; print(get_username())'

License

MIT — personal automation; follow Reddit's rules. Not affiliated with Reddit.

This server cannot be deployed

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Maintenance

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