ably for ChatGPT
io.usefulapi/ably
MCP server for Ably — channel history, presence, occupancy, stats, publish, and app management.
client:ChatGPT
transport:streamable-http
tools:15
Install ably in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://ably.usefulapi.io/mcp
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs