Email & SMS Marketing Cost Calculator for ChatGPT

io.github.money-tools-jp/email-sms-cost

Compare monthly email and SMS marketing costs across 11 platforms, with dated official sources.

client:ChatGPT transport:streamable-http tools:2

Install Email & SMS Marketing Cost Calculator in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://email-sms-cost-mcp.money-tools.workers.dev/mcp

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