Numbers Online — phone intelligence for ChatGPT
online.numbers/numbers-online
Read-only phone intelligence for AI voice agents — line type, risk, DNC, signed receipts.
client:ChatGPT
transport:streamable-http
tools:4
Install Numbers Online — phone intelligence in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://numbers.online/api/v1/mcpCustom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs