simpletexting for ChatGPT

io.usefulapi/simpletexting

Send SMS/MMS, manage contacts, and read campaigns, messages and media on SimpleTexting.

client:ChatGPT transport:streamable-http

Install simpletexting in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://simpletexting.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