Pingfyr for ChatGPT
com.pingfyr/pingfyr
Schedule reminders for AI agents via email, webhook, Slack, Discord, Telegram, or Google Calendar.
client:ChatGPT
transport:streamable-http
Install Pingfyr in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://mcp.pingfyr.com/mcp?apiKey={apiKey}
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs