Postage.lk for ChatGPT
lk.postage/postage
Sri Lanka Post postage, COD fees, post office lookup and prohibited items for international mail.
client:ChatGPT
transport:streamable-http
tools:4
Install Postage.lk in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://postage.lk/mcp
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs