MCP server for AI agents

Your AI assistant,
now posts and replies.

Connect Chat33 to Claude, ChatGPT, Cursor, Codex or Grok. Then ask it to schedule posts to eight platforms, build comment-to-DM flows and work through your Instagram and Facebook inbox. You approve what goes out.

Pick your appEvery tool

Works on every plan, including Free · No API key needed

Pick your app

One prompt, then sign in

Each page has one line to paste. Your assistant reads the page and walks you through the rest.

Claude

Claude Code, Claude Desktop, claude.ai

Claude Code, Claude Desktop and claude.ai. One command or one connector, then browser sign-in.

Set up Chat33 from chat33.io/claude

ChatGPT

ChatGPT custom connector

Add Chat33 as a custom connector in ChatGPT's Developer mode, then browser sign-in.

Set up Chat33 from chat33.io/chatgpt

Cursor

Cursor agent chat

Add one entry to Cursor's MCP settings, click Connect, sign in in the browser.

Set up Chat33 from chat33.io/cursor

Codex

Codex CLI

Two commands in the Codex CLI, then browser sign-in.

Set up Chat33 from chat33.io/codex

Grok

Grok connector

Give Grok a Chat33 API key and it adds the connector itself.

Set up Chat33 from chat33.io/grok

Another MCP client

Endpoint, sign-in options and the full tool list.

https://chat33.io/api/mcp/mcp

What to ask

Plain requests, real tools

“Schedule this video to Instagram, TikTok and YouTube for Friday at 6pm.”

upload_mediavalidate_postcreate_post

“Build a comment-to-DM flow: comment GUIDE, get the PDF link.”

create_flowset_flow_status

“Which of last week's posts got the most comments?”

get_analyticslist_posts

“Show me unanswered DMs about price and draft replies.”

list_conversationsget_messagesreply_to_conversation

“Reply to the questions under my last reel.”

list_post_commentsreply_to_comment

“Why did my TikTok post fail yesterday?”

list_postsget_post_logs

By platform: Instagram · Facebook · Threads · TikTok · YouTube · X (Twitter) · LinkedIn · Bluesky

For AI agents reading this page

Identify the client you are running in and open exactly one matching setup page, then follow it: Claude: https://chat33.io/claude, ChatGPT: https://chat33.io/chatgpt, Cursor: https://chat33.io/cursor, Codex: https://chat33.io/codex, Grok: https://chat33.io/grok. If your client is not listed, connect to https://chat33.io/api/mcp/mcp with your client's remote MCP setup (OAuth sign-in if supported, otherwise an x-api-key header), then call whoami.