MCP Server

Lemmy MCP Server Let any AI agent post to Lemmy

Let AI agents publish text and image posts to any Lemmy community, on any instance — from a single prompt.

Start free, no card Full MCP server guide

mcp.json

{
  "mcpServers": {
    "upload-post": {
      "url": "https://mcp.upload-post.com/mcp",
      "headers": {
        "Authorization": "ApiKey YOUR_API_KEY"
      }
    }
  }
}

Lemmy tools the agent can call

Part of the Upload-Post MCP server. The agent picks the right tool from your prompt.

Tool	What it does
upload_text	Publish a text post to a Lemmy community
upload_photos	Publish an image post, uploaded via pict-rs
list_scheduled / edit_scheduled / cancel_scheduled	Manage scheduled posts
get_status / get_history	Track what was posted and when

Looking for another way to post? See the Lemmy API page or the Claude Code Lemmy skill.

Works with every MCP client

Same server, same tools. Pick your AI client and follow its 3-step guide.

ChatGPT Claude Gemini Cursor Copilot OpenCode

Try these Lemmy prompts

No commands to memorize. Describe what you want.

“Post this write-up to the selfhosted community on Lemmy.”

“Cross-post my Reddit post to Lemmy — same title, native tone.”

“Post this screenshot to Lemmy with a descriptive title.”

“Schedule this post for when the community is most active.”

Frequently asked questions

Lemmy + AI agents, answered. Last updated June 2026.

What is a Lemmy MCP server?

A Lemmy MCP server is a Model Context Protocol server that exposes Lemmy posting as tools an AI agent can call. The Upload-Post MCP server lets ChatGPT, Claude, Gemini or any MCP client publish text and image posts to Lemmy communities — no custom code.

Can AI agents post to Lemmy?

Yes. Connect your instance URL, username and password to Upload-Post once, add the MCP server to your AI client, and the agent can publish to the community of your choice from a prompt.

Does it work with any Lemmy instance?

Yes. It works with lemmy.world or any self-hosted Lemmy instance — you pick the instance and the target community per post.

Is the Lemmy MCP server free?

The MCP server is free and open-source (MIT). It works with any Upload-Post plan, including the free tier.