Reddit MCP Server

A personal, read-only MCP (Model Context Protocol) server that provides access to Reddit's API through any MCP-compatible client (Claude Desktop, Claude Code, etc.).

What It Does

This server exposes 8 tools for interacting with Reddit:

All tools are read-only. The server does not post, comment, vote, moderate, or modify any Reddit content.

Related MCP server: reddit-mcp

Requirements

• Python 3.10+

• A Reddit account

• Reddit API credentials (see Setup below)

Setup

1. Get Reddit API Credentials

1. Go to reddit.com/prefs/apps

2. Click "create another app..."

3. Select "script" as the app type

4. Set redirect URI to http://localhost:8080

5. Note your Client ID (string under the app name) and Client Secret

2. Install Dependencies

cd reddit-mcp-server

# Using uv (recommended)
uv venv
source .venv/bin/activate
uv pip install -r requirements.txt

# Or using pip
python -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt

3. Configure Credentials

Copy the example env file and fill in your credentials:

cp .env.example .env

Edit .env with your values:

REDDIT_CLIENT_ID=your_client_id
REDDIT_CLIENT_SECRET=your_client_secret
REDDIT_USERNAME=your_reddit_username
REDDIT_PASSWORD=your_reddit_password

Security: The .env file is in .gitignore and will not be committed. Never put credentials in source code.

4. Connect to Claude Desktop

Add this to your Claude Desktop config file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "reddit": {
      "command": "/ABSOLUTE/PATH/TO/.venv/bin/python",
      "args": ["/ABSOLUTE/PATH/TO/reddit-mcp-server/server.py"],
      "env": {
        "REDDIT_CLIENT_ID": "your_client_id",
        "REDDIT_CLIENT_SECRET": "your_client_secret",
        "REDDIT_USERNAME": "your_username",
        "REDDIT_PASSWORD": "your_password"
      }
    }
  }
}

Replace the paths and credentials with your actual values.

Security

This server follows secure coding principles:

• No hardcoded secrets. All credentials are loaded from environment variables at startup.

• Fail closed. Missing credentials cause immediate exit — the server will not start in a broken state.

• Input validation. All tool inputs are validated with Pydantic (type, length, format) before any API call.

• Minimal data exposure. Responses return only relevant fields — no raw API objects or credential leakage.

• Sanitized subreddit/user names. Inputs are checked for injection characters before use.

• Safe error handling. Errors return actionable messages without stack traces or internal details.

• Read-only operation. No tool modifies Reddit content. All tools are annotated with readOnlyHint: true.

Rate Limits

Reddit's free tier allows 60–100 requests per minute for OAuth-authenticated apps. Normal conversational use through an MCP client will stay well within these limits.

License

MIT