ThreadFox Lite
Free, read-only Reddit tools for Claude Desktop, Claude Code, Codex and any MCP client, plus a reddit-rules-first agent skill.
subreddit_rules: a subreddit's rules, size and description, with the self-promotion rules flagged. Call it before writing a post.find_communities: subreddits about a topic ("bakery marketing", "indie games"), each with its self-promotion rules flagged and whether it mentions a promo thread.account_check: a Reddit account's age, karma and standing, and whether its recent posts are removed or hidden from search (the practical sign of a spam filter or shadowban).post_status: whether a post is still live, removed by moderators or deleted, with score and comments. Check at 1, 6 and 24 hours.threadfox_full_kit: what the full ThreadFox kit adds (finding conversations where people ask for what you sell, posting from your own Chrome, replies, an outcome ledger, a 12-module course).
Reads only, through your own signed-in Chrome. Reddit now sends every signed-out request, including its public JSON, to a login page, so ThreadFox Lite reads the way you do: in your Chrome, signed in as you, one small read at a time. It never posts, votes or changes anything, and needs no Reddit API keys. One-time setup: Microsoft's Playwright Extension in the Chrome where you are signed in to Reddit. Node.js is fetched for you if you don't have it (the official build from nodejs.org into ~/.threadfox/runtime, checked against its published SHA-256; nothing installed system-wide). It stays light on your computer: one Reddit read at a time across every ThreadFox app on the machine, and its Chrome connection closes after 10 idle minutes and never leaves background processes behind. The first read asks you to pick a tab in Chrome.
Install
Claude Code plugin (the tools and the skill together):
/plugin marketplace add amflimited/threadfox-lite
/plugin install threadfox-lite@threadfox
Claude Code, the MCP server only:
claude mcp add threadfox-lite -- uvx threadfox-lite
Claude Desktop: download the .mcpb file from the latest release and open it; if Windows asks which app should open it, choose Claude. Claude Desktop sets up Python for it by itself.
Codex (~/.codex/config.toml):
[mcp_servers.threadfox-lite]
command = "uvx"
args = ["threadfox-lite"]
Any other MCP client: run uvx threadfox-lite (the package is on PyPI).
Bought ThreadFox on MCP Marketplace? Set MCP_LICENSE_KEY to your key, ask your AI to run threadfox_full_kit, or go straight to https://threadfox.vip/redeem.
The skill
skills/reddit-rules-first/SKILL.md works on its own in any agent that reads skills: rules first, one post per community, disclose, check what stayed up. Install it anywhere with npx skills add amflimited/threadfox-lite.
Also listed in the official MCP Registry as io.github.amflimited/threadfox-lite.
About
Made by AMF Indiana, the team behind ThreadFox (https://threadfox.vip). Built from our own run: 978,227 recorded views from two days of posts (Sept 20-21 UTC), with no ad spend. Not affiliated with Reddit, OpenAI or Anthropic. MIT licence.