simple-reddit-mcp

simple-reddit-mcp

A read-only Reddit MCP server that fetches threads, comments, and subreddits from the Arctic Shift archive over HTTP, requiring no Reddit account or API key.

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README

simple-reddit-mcp

A read-only Reddit MCP server that needs no Reddit account, no API key, and no browser. It reads threads, comments and subreddits from the Arctic Shift archive over plain keyless HTTP.

One runtime dependency zeromcp, making simple-reddit-mcp lightweight and quick to startup

Requirements

  • Python 3.11 or newer
  • uv (recommended) or pip

Run it

# from a clone of this repo
uv run simple-reddit-mcp

# from a local checkout, without installing anything
uvx --from /path/to/simple-reddit-mcp simple-reddit-mcp

# with pip
pip install -e . && simple-reddit-mcp

The server speaks MCP over stdio: JSON-RPC on stdout, logs on stderr.

Configure your MCP client

Example for Claude:

{
  "mcpServers": {
    "reddit": {
      "command": "uvx",
      "args": ["--from", "/absolute/path/to/simple-reddit-mcp", "simple-reddit-mcp"]
    }
  }
}

Tools

Implemented:

Tool Arctic Shift endpoint Purpose
get_thread /api/posts/ids + /api/comments/tree A post plus its comment tree, from any reddit URL or id
get_posts /api/posts/ids Bulk post lookup by id (up to 500)
get_comments /api/comments/ids Bulk comment lookup by id (up to 500)
search_posts /api/posts/search Discovery by subreddit / keyword / author / date range
search_comments /api/comments/search Comment-level search; with author= it doubles as user history
search_subreddits /api/subreddits/search Find subreddits by name, prefix, size, or age

Not currently implemented:

Tool Arctic Shift endpoint
search_users /api/users/search
aggregate_posts / aggregate_comments /api/{posts,comments}/search/aggregate
time_series /api/time_series
subreddit_rules /api/subreddits/rules
subreddit_wiki /api/subreddits/wikis, /api/subreddits/wikis/list
user_interactions /api/users/interactions/{users,subreddits}, .../users/list
user_flairs /api/users/aggregate_flairs
resolve_short_link /api/short_links
— /api/subreddits/ids, /api/users/ids

Caveats

  • Read-only. Voting, commenting and posting require Reddit auth
  • score and num_comments are placeholders for ~36h. Arctic Shift archives a post the moment it appears and backfills vote data later, so fresh posts report 1 and 0. Rendered output flags anything under 36h old.
  • Free service = no uptime SLA.

Development

uv sync --group dev
uv run --group dev pytest

Attribution

MIT licensed.

  • Built on zeromcp (MIT).
  • Data comes from Arctic Shift, a free service; be considerate with it.

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