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r/mcp rules, stats, and what to post

A source-backed Rankhog guide to r/mcp: public rules, community context, posting fit, and startup-promotion risk before you publish.

By Anthony Riera, founder and operator of Rankhog.

Subreddit guides combine public Reddit source URLs, captured rules, visible verification dates, and Rankhog's account-safety workflow.

Current public stats

Members
123,953
Verified
October 12, 2026
Category
AI builders, operators, and researchers

Rules can change, so Rankhog keeps verification dates and the original public Reddit sources visible.

Rule summary

  • No waitlists: If you are working on a service, you are welcome to share it with the community after its fully launched. To combat spam, we don't allow links to announcements of future-services until they are barely anything more than a landing page.
  • No AI generated slop: There has been a wave of AI-generated slop used to promote random services, usually disguised as sensational topics like MCP security. Such content will result in a ban.
  • No astroturfing: Self-promotion is allowed with proper disclosure. Anyone caught promoting their product while pretending to be an unaffiliated user will be permanently banned.
  • Use showcase tag to share your work: If you've built something in the MCP ecosystem, use showcase tag to indicate authorship and intent of demonstrating your work to others.

Works well

  • A showcase post for your fully launched MCP server, tagged and disclosed as your own work
  • A launch announcement for a finished MCP tool that explains what it does and who it helps
  • A technical writeup about a problem you solved while building in the MCP ecosystem
  • A genuine question or discussion about connecting data sources to AI powered tools
  • A demo of your MCP integration with clear disclosure that you built it

Avoid

  • Posting a waitlist or landing page for a service that has not fully launched yet
  • Sharing an announcement for a future product that is barely more than a landing page
  • Publishing AI generated content, especially sensational security topics used to promote a service
  • Promoting your product while pretending to be an unaffiliated user
  • Sharing your own MCP project without the showcase tag
  • Dropping a link with no disclosure of your connection to the product

What r/mcp Is For

This community is for developers working with the Model Context Protocol, an open standard that lets builders create secure, two-way connections between their data sources and AI powered tools. The people here are building servers, clients, and services in the MCP ecosystem, and they share their work with each other. It is a builder community first, which is why the rules talk about launches, showcases, and disclosure rather than banning promotion outright. If you are a founder or developer with something real in this space, this room was made for people like you.

Rules That Matter Before Posting

Four rules decide whether your post survives here. “No waitlists” means you cannot share a service until it is fully launched, and links to announcements of future services that are barely more than a landing page are not allowed. “No AI generated slop” bans AI generated content, especially sensational topics like MCP security used to promote random services, and the rule says such content will result in a ban. “No astroturfing” allows self promotion with proper disclosure, but anyone caught promoting their product while pretending to be an unaffiliated user gets permanently banned. “Use showcase tag to share your work” requires you to apply the showcase tag whenever you demonstrate something you built in the MCP ecosystem.

What To Post

A good post here is a fully launched thing you built in the MCP ecosystem, shared with the showcase tag so everyone knows you are the author. Say plainly that it is yours, explain what it does for people connecting data sources to AI tools, and invite real feedback. If you want to join discussions without promoting, that works too, just never pretend to be an unaffiliated user when you are not. Honest disclosure plus the showcase tag is the whole formula.

What To Avoid

Do not post a waitlist or a landing page for a service that has not fully launched, because “No waitlists” will get it removed. Do not publish anything AI generated, because “No AI generated slop” leads to a ban, not just a removal. Never promote your product while pretending to be an unaffiliated user, because “No astroturfing” means a permanent ban. And do not share your own work without the showcase tag, because posts that lack it get removed.

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Common questions about r/mcp

Can I post my product before launch to build hype?

Only once it is fully launched. The rules say links to announcements of future services are not allowed if they are barely more than a landing page.

Can I share something I built in the MCP ecosystem?

Yes, self promotion is allowed with proper disclosure, and you should use the showcase tag to indicate authorship.

Can I use AI to write my post?

No. AI generated content is banned here, and the rules say such content will result in a ban.

Can I ask a friend to post about my tool so it looks organic?

No. Anyone caught promoting their product while pretending to be an unaffiliated user will be permanently banned.

What is this community about?

It is a community for developers building with the Model Context Protocol, an open standard for connecting data sources to AI powered tools.

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