hoaster for ChatGPT

app.hoaster/hoaster

Hosts AI-generated web content (HTML, images, SVG, JSON) at a public URL, with custom domains.

client:ChatGPT transport:streamable-http

Install hoaster in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://hoaster.app/api/mcp

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