Kelam Voice Agents for ChatGPT

io.github.nousdata/kelam

Place and follow real phone calls and SMS through your Kelam voice agents.

client:ChatGPT transport:streamable-http

Install Kelam Voice Agents in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://api.kelam.sh/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs