Sealgraf for ChatGPT
com.sealgraf/sealgraf
Sealgraf checks agent purchases against the owner's limits and seals a receipt anyone can check.
client:ChatGPT
transport:streamable-http
Install Sealgraf in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://sealgraf.com/mcp
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs