MakeHybrid in Grok
One address turns your LinkedIn account, your messaging channels and your work trackers into tools your AI can use. There is nothing to download and no configuration file to edit.
The address
https://makehybrid.com/mcp
That is the whole configuration, and it is the same address for everybody. Paste it wherever the app asks for an MCP server URL.
It signs you in itself. The first time the connector is used it opens a MakeHybrid sign-in, you choose which of your organizations it may act for, and it is given a key of its own. Nothing to paste and nothing to copy out of a settings screen — and you can revoke that key from your dashboard whenever you like, without touching the others.
Grok
Open grok.com/connectors, press New connector and choose Custom. Paste the address as the MCP server URL and let it sign in. On a Business or Enterprise account an administrator adds the connector for the organization first, and then each person switches it on for themselves.
You have to be signed in there already, or it opens a sign-in page instead of the setting.
This is xAI's assistant reading your account through MCP. It is a different thing from the X API, which posts and reads on X itself and has keys of its own — if that is what you are after, connect the X channel instead.
Check it worked. Ask it to “list my connected LinkedIn accounts”. If it answers with your accounts, everything is wired up. If it says it has no such tool, the connector is added but not switched on in that conversation.
Anything else that speaks MCP
Any assistant that speaks MCP over HTTP takes the same address and nothing else. If it asks for a transport, it is a remote server over HTTP, not a command to run. The clients without a page of their own — and the addresses that carry a key instead of a sign-in, for a client that cannot sign in at all — are in the reference.