Which plan includes MCP access?

Signal8 Pro, at $59/mo or $588/yr.

What is the Signal8 MCP server URL?

https://mcp.signal8.ai/mcp. It is hosted, so there is nothing to install.

Add the hosted Signal8 MCP server to ChatGPT as a custom connector. ChatGPT opens a Signal8 sign-in to authorize, no key to paste.

In ChatGPT, open Settings → Connectors → Add custom connector and point it at the hosted Signal8 server:

https://mcp.signal8.ai/mcp

ChatGPT opens a Signal8 sign-in to authorize, no key to paste. Requires a ChatGPT plan with MCP connectors enabled (developer mode).

Once connected, ChatGPT can call any of the 113 Signal8 tools. Ask in plain English and it picks the right one.

Do I need an API key to connect ChatGPT?: No. ChatGPT opens a Signal8 sign-in to authorize, no key to paste.
Which plan includes MCP access?: Signal8 Pro, at $59/mo or $588/yr.
What is the Signal8 MCP server URL?: https://mcp.signal8.ai/mcp. It is hosted, so there is nothing to install.