# AI Assistant Connectors: Claude, ChatGPT, Grok, Cursor **Source:** https://posteverywhere.ai/connectors --- One URL · 33 tools · 11 platforms # Connect your AI assistant to social media PostEverywhere runs a hosted [MCP server](https://posteverywhere.ai/mcp) at `mcp.posteverywhere.ai`. Paste that one URL into Claude, ChatGPT, Grok, Cursor or Claude Code and your assistant can [schedule posts](https://posteverywhere.ai/social-media-scheduler), write captions and read [analytics](https://posteverywhere.ai/social-media-analytics) across all 11 platforms. Nothing to install. [Start your 7 day trial](https://app.posteverywhere.ai/signup)[See the full agent surface →](https://posteverywhere.ai/agents)Card required · $0 charged today · cancel any time ## Every assistant we connect to Each one has its own prerequisite. They are listed here rather than buried, because the gate is what stops most people, not the setup. ### Claude [Claude setup →](https://posteverywhere.ai/connectors/claude)Add PostEverywhere as a custom connector in claude.ai. We are listed in Anthropic’s Claude connector directory. On Team or Enterprise, only an Owner can add a connector, under Organization settings. Free plans allow one connector. - In claude.ai open Customize then Connectors, not Settings. Press the plus, then Add custom connector. - Paste https://mcp.posteverywhere.ai. - Press Add, then Connect, sign in and Approve. ### ChatGPT [ChatGPT setup →](https://posteverywhere.ai/connectors/chatgpt)Works as a ChatGPT custom connector. Not an OpenAI directory listing, you add it yourself. Turn on Developer mode first or there is nothing to click: Settings, Apps, Advanced settings, Developer mode. Web only, needs a paid ChatGPT plan, and it is not in the phone apps. - Turn on Developer mode in ChatGPT settings. - Open Settings, Apps and choose Create. - Paste https://mcp.posteverywhere.ai. - Set authentication to OAuth, then Create, sign in and approve. ### Grok [Grok setup →](https://posteverywhere.ai/connectors/grok)Add PostEverywhere at grok.com/connectors and let Grok schedule and publish for you. On Business or Enterprise an admin provisions it first in the cloud console. On personal plans you can add it yourself. - Go to grok.com/connectors, or Settings then Connectors on the phone apps. - Click New Connector, then Custom. - Paste https://mcp.posteverywhere.ai. - Complete the sign-in. ### Claude Code [Claude Code setup →](https://posteverywhere.ai/connectors/claude-code)One terminal command, then authenticate. No config file to hand-edit. - `claude mcp add --scope user --transport http posteverywhere https://mcp.posteverywhere.ai` - Type /mcp in Claude Code and choose Authenticate. ### Cursor [Cursor setup →](https://posteverywhere.ai/connectors/cursor)Add the hosted server from Customize in the Cursor sidebar. Needs a paid Cursor plan. Cursor needs a paid plan for MCP. - Open Customize in the Cursor sidebar. It is no longer under Settings. - Paste https://mcp.posteverywhere.ai. - Approve the sign-in window Cursor opens. ## Using something else? Any client that speaks the Model Context Protocol works with the same URL, including Windsurf, Cline, Zed and Codex CLI. The per-client config blocks live on the [agents page](https://posteverywhere.ai/agents#local-configs). If your framework can send an authenticated HTTP request, use the [REST API](https://posteverywhere.ai/social-media-api) instead: LangChain, CrewAI, AutoGen, LlamaIndex and the Vercel AI SDK all work that way. Full endpoint reference is on the [developers page](https://posteverywhere.ai/developers). ## Included on every paid plan from $9/mo No separate developer tier, no enterprise call. The same key works for the MCP server, the [REST API](https://posteverywhere.ai/social-media-api) and the SDK. See [pricing](https://posteverywhere.ai/pricing) for what each plan includes. [Start your 7 day trial](https://app.posteverywhere.ai/signup) ## Connector FAQ ### What is an AI assistant connector? A connector lets an AI assistant call an external tool on your behalf. PostEverywhere runs a hosted Model Context Protocol server, so once you add our URL to Claude, ChatGPT, Grok, Cursor or Claude Code, the assistant can draft, schedule and publish posts across your connected accounts in plain language. ### Which AI assistants can post to social media? Claude, ChatGPT, Grok, Claude Code and Cursor all connect directly. Anything else that speaks the Model Context Protocol works too, and any framework that can send an authenticated HTTP request can use the REST API instead. ### Do I need to install anything? No. The server is hosted at mcp.posteverywhere.ai, so there is one URL to paste and nothing running on your machine. If you would rather self-host, the open-source server is on npm and exposes the same 33 tools. ### Why can I not see custom connectors in ChatGPT? They stay hidden until Developer mode is enabled. Go to Settings, Apps, Advanced settings, Developer mode. It is web only and needs a paid ChatGPT plan, and it is not available in the phone apps. ### Does connecting an assistant cost extra? No. The MCP server, the REST API and the SDK are on every paid plan from $9 a month. There is no separate developer tier and no enterprise call. Every plan has a 7-day trial and a card is required to start it. ### Which social platforms can the assistant publish to? All eleven we support: Instagram, TikTok, YouTube, X, Facebook, LinkedIn, Threads, Pinterest, Bluesky, Telegram and Discord.