ChatGPT
Add SealGate to ChatGPT as a custom remote MCP server from the Plugins page.
Needs Plus or higher, on the web. On Business, Enterprise and Edu an admin allows it first (see the Admin tab). Free can't add custom MCP servers.
1. Get Your SealGate Connection URL
In the SealGate dashboard, open Settings > Api key / MCP URL > Get MCP URL and pick ChatGPT:
https://mcp.sealgate.ai/mcp/<your-api-key>/?client=chatgptThis URL contains your API key. Treat it like a password.
2. Create the Custom MCP Server in ChatGPT
- Open Plugins, then Add > Create custom MCP server.
- Name:
sealgate. - Server URL: paste your URL from step 1 as is.
- Authentication: No Auth. Pasted the keyless
https://mcp.sealgate.ai/mcpinstead? Keep OAuth and sign in when asked. - Click Create as a plugin.
Start a new chat. If SealGate is off, turn it on from the composer's + menu.
Never share a key URL. A key URL carries one person's API key, so a server shared with it would log every member's activity as that one person. To share one server, use the keyless https://mcp.sealgate.ai/mcp with OAuth instead: each member signs in to SealGate and is logged as themselves.
- Allow custom MCP servers under Workspace Settings > Permissions & roles > Connected data > Create custom MCP connectors. On Business only admins can then add them; on Enterprise and Edu, admins and authorized developers can.
- Each member follows the Personal steps with their own URL.
Connect ChatGPT to your messaging apps
The same gateway fronts SealGate's messaging connectors, so ChatGPT can read and send across WhatsApp, iMessage, Telegram, and LinkedIn under the same policy and audit log. All networks: sealgate.ai/connect.