YangOpen for ChatGPT
com.yangopen/mcp
Vietnamese-first text to speech, photo and PDF tools, audio to text, QR codes. Free daily allowance.
client:ChatGPT
transport:streamable-http
tools:13
Install YangOpen in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://yangopen.com/mcp
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs