Reddit MCP Server
A Model Context Protocol (MCP) server for interacting with Reddit - fetch posts, comments, user info, and create content.
Features at a Glance
Quick Start
Option 1: Claude Desktop Extension (Easiest)
Download and open the extension file - Claude Desktop will install it automatically:
Download reddit-mcp-server.mcpb
Option 2: NPX (No install required)
Add to your MCP config (Claude Desktop, Cursor, etc.) with Reddit OAuth credentials:
{
"mcpServers": {
"reddit": {
"command": "npx",
"args": ["reddit-mcp-server"],
"env": {
"REDDIT_CLIENT_ID": "your_client_id",
"REDDIT_CLIENT_SECRET": "your_client_secret"
}
}
}
}
Option 3: Claude Code
REDDIT_CLIENT_ID=your_client_id REDDIT_CLIENT_SECRET=your_client_secret \
claude mcp add --transport stdio reddit -- npx reddit-mcp-server
Features
Read-only Tools
Write Tools (Require User Credentials)
Configuration
Environment Variables
Reddit closed self-service app creation in November 2025. See Authentication for how to get credentials.
Full MCP Config Example
{
"mcpServers": {
"reddit": {
"command": "npx",
"args": ["reddit-mcp-server"],
"env": {
"REDDIT_CLIENT_ID": "your_client_id",
"REDDIT_CLIENT_SECRET": "your_client_secret",
"REDDIT_USERNAME": "your_username",
"REDDIT_PASSWORD": "your_password",
"REDDIT_SAFE_MODE": "standard"
}
}
}
}
Safe Mode (Spam Protection)
Protect your Reddit account from spam detection and bans with built-in safeguards. Enabled by default (standard mode) per Reddit's Responsible Builder Policy.
Why Use Safe Mode?
Reddit's spam detection can flag accounts for:
- Rapid posting or commenting
- Duplicate or similar content
- Posting the same content across multiple subreddits
- Non-standard User-Agent strings
Safe Mode helps prevent these issues automatically.
Mode Options
Disable Safe Mode
Safe mode is enabled by default. To explicitly disable:
export REDDIT_SAFE_MODE=off
npx reddit-mcp-server
What Safe Mode Does
- Rate Limiting: Enforces minimum delays between write operations
- Duplicate Detection: Blocks identical content from being posted twice
- Cross-Subreddit Detection: Prevents posting the same content to multiple subreddits (per Reddit policy)
- Smart User-Agent: Auto-generates Reddit-compliant User-Agent format when username is provided
Bot Disclosure
Reddit's Responsible Builder Policy requires bots to disclose their automated nature. Enable automatic bot footers on all posted content:
export REDDIT_BOT_DISCLOSURE=auto
npx reddit-mcp-server
When enabled, a footer is appended to all posts, replies, and edits:
---
š¤ I am a bot | Built with reddit-mcp-server
Customize the footer with REDDIT_BOT_FOOTER:
export REDDIT_BOT_DISCLOSURE=auto
export REDDIT_BOT_FOOTER=$'\n\n---\n^(š¤ Custom bot footer text)'
Authentication
ā ļø Reddit API Changes (2026)
Anonymous mode no longer works. As of mid-2026, Reddit blocks all unauthenticated API requests with HTTP 403. OAuth credentials are now required for any API access.
Reddit is shutting down its public API and RSS feeds. Reddit announced on 2026-09-30 that it stops accepting new public API access requests on 2026-10-31, ends RSS feeds on 2026-11-13, starts removing unregistered apps on 2027-01-12, and closes public API access in March 2027. Without credentials, this server already reads from the Arctic Shift archive (see Keyless Mode).
Additionally, Reddit closed self-service OAuth app creation in November 2025. New developers must request access through Reddit's Developer Support. Existing OAuth credentials (obtained before November 2025) continue to work.
Getting Credentials
If you already have a Reddit app (created at /prefs/apps before November 2025): use your existing client ID and secret ā they still work at 60-100 req/min.
If you need new credentials: submit a request through Reddit's Developer Support describing your use case. Approval is required and may take time.
Mode Comparison
Keyless Mode
Without OAuth credentials, reads come from two free sources:
- Reddit's RSS feeds for ranked listings (
hot,top,rising,controversial, and the home feed). Reddit retires RSS on 2026-11-13. When a feed fails for a named subreddit, the server falls back to the archive's newest posts and says ranking is unavailable. - The Arctic Shift archive, a free third-party copy of Reddit run by one volunteer. It is not Reddit's API and has no uptime guarantee.
Archive caveats: scores and comment counts lag, and are often 0 or 1 on recent posts. Keyword search on large subreddits is slow, and the archive throttles it; the server retries once. Every archive result ends with a note naming the source.
Still needs OAuth: get_trending_subreddits, get_post_flairs, get_me, get_my_overview, get_my_saved, and all write tools.
Read-Only Access (OAuth)
{
"env": {
"REDDIT_CLIENT_ID": "your_client_id",
"REDDIT_CLIENT_SECRET": "your_client_secret"
}
}
Write Operations (OAuth + User Credentials)
To create posts, reply, edit, or delete content, add your Reddit username and password:
{
"env": {
"REDDIT_CLIENT_ID": "your_client_id",
"REDDIT_CLIENT_SECRET": "your_client_secret",
"REDDIT_USERNAME": "your_username",
"REDDIT_PASSWORD": "your_password",
"REDDIT_SAFE_MODE": "standard"
}
}
Development
Commands
pnpm install # Install dependencies
pnpm build # Build TypeScript
pnpm dev # Build and run MCP inspector
pnpm test # Run tests
pnpm lint # Lint code
pnpm format # Format code
CLI Options
npx reddit-mcp-server --version # Show version
npx reddit-mcp-server --help # Show help
npx reddit-mcp-server --generate-token # Generate OAuth token for HTTP mode
HTTP Server Mode
For Docker deployments or web-based clients, use HTTP transport:
TRANSPORT_TYPE=httpStream PORT=3000 node dist/index.js
With OAuth Protection
export OAUTH_ENABLED=true
export OAUTH_TOKEN=$(npx reddit-mcp-server --generate-token | tail -1)
TRANSPORT_TYPE=httpStream node dist/index.js
Make authenticated requests:
curl -H "Authorization: Bearer $OAUTH_TOKEN" \
-H "Content-Type: application/json" \
-d '{"method":"tools/list","params":{}}' \
http://localhost:3000/mcp
Docker
Quick Start
# Pull and run
docker pull ghcr.io/jordanburke/reddit-mcp-server:latest
docker run -d \
--name reddit-mcp \
-p 3000:3000 \
-e REDDIT_CLIENT_ID=your_client_id \
-e REDDIT_CLIENT_SECRET=your_client_secret \
-e REDDIT_SAFE_MODE=standard \
ghcr.io/jordanburke/reddit-mcp-server:latest
Docker Compose
services:
reddit-mcp:
image: ghcr.io/jordanburke/reddit-mcp-server:latest
ports:
- "3000:3000"
environment:
- REDDIT_CLIENT_ID=${REDDIT_CLIENT_ID}
- REDDIT_CLIENT_SECRET=${REDDIT_CLIENT_SECRET}
- REDDIT_USERNAME=${REDDIT_USERNAME}
- REDDIT_PASSWORD=${REDDIT_PASSWORD}
- REDDIT_SAFE_MODE=standard
- OAUTH_ENABLED=${OAUTH_ENABLED:-false}
- OAUTH_TOKEN=${OAUTH_TOKEN}
restart: unless-stopped
Build Locally
docker build -t reddit-mcp-server .
docker run -d --name reddit-mcp -p 3000:3000 --env-file .env reddit-mcp-server
Reddit Responsible Builder Policy
This server is designed with Reddit's Responsible Builder Policy in mind:
- Safe mode on by default ā rate limiting and duplicate detection prevent spam
- Cross-subreddit duplicate detection ā blocks identical content across subreddits
- Bot disclosure support ā optional automated footer for transparency
- No voting/karma manipulation ā upvote/downvote tools are intentionally excluded
- No private messaging ā DM tools are intentionally excluded
- Policy-aware AI instructions ā MCP server instructions remind AI assistants of data usage restrictions
Credits
- Fork of reddit-mcp-server by Alexandros Lekkas
- Inspired by Python Reddit MCP Server by Arindam200