WSENDER for ChatGPT
io.wsender/wsender
Manage WhatsApp, Telegram and MAX mailings: audiences, drafts, moderation and sending.
client:ChatGPT
transport:streamable-http
Install WSENDER in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://mcp.wsender.io/Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs