Nodium WhatsApp for ChatGPT
io.github.nodium-io/whatsapp
Operate WhatsApp from an agent: read conversations and contacts, send messages, by API key.
client:ChatGPT
transport:streamable-http
Install Nodium WhatsApp in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://nodium.io/api/v1/mcp
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs