r/opensource bans projects that use, come from or serve AI

That includes servers for the Model Context Protocol (MCP), the standard that lets AI assistants use outside tools. Other rules reach well beyond AI: a project must be at least a year old and still maintained, with roughly three contributors and a community of its own, and posting accounts must be a year old too. Posters without English are turned away as well, because the moderators say a translated post and an AI-written one look the same to them, The Verge reports.

About 1,400 comments arrived within a day, and a rival forum, r/trueopensource, opened. Critics point to AI-written code already inside the Linux kernel. Moderator Wolvereness has replied that enforcement can bend, for instance for an app whose captioning feature runs on AI.

MCP servers have become a normal way into ad tools. Our guide to connecting Higgsfield to Claude, updated 25 October 2026, covers the hosted MCP server through which Claude generates Higgsfield images and videos.

Because the rules name MCP servers outright, an open-source MCP connector for an ad tool, the same kind of link Higgsfield runs as a hosted server for Claude, now falls outside r/opensource however old or well maintained the project is, under the rules as posted.