How are you guys capturing telemetry?

ChatGPT Apps SDK
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1

I want to how many users visited my app along with their use patterns for further improvement of my app. Is there a way to find out?

2

Did OAI already approve your app?

3

No actually its under review. I just wanted to find methods to capture telemetry for future purposes

4

I’m using an MCP tool that’s set to private (not for the model to see) that sends telemetry log events.

Screenshot 2026-01-02 at 11.26.54 AM
Screenshot 2026-01-02 at 11.26.54 AM866×328 9.55 KB

5

@duncansmothers’ approach is the right one: a private, widget-accessible tool the model never sees. Works under any CSP, zero context cost, keys stay server-side.

I hand-rolled that same pattern, then open-sourced it so you don’t have to rebuild the fiddly parts around it (lifecycle + error auto-capture, batching so it’s not one tool call per click, retries, teardown flush, PostHog/webhook forwarding): GitHub - Roee-Tsur/mcp-signal: Tiny, zero-dependency telemetry SDK for MCP widgets — capture usage in Claude MCP Apps / ChatGPT Apps SDK / mcp-ui and forward it anywhere, even past the host CSP. · GitHub

I’m the author, it’s v0.2, MIT. If it breaks in your setup I want to hear about it.

@soham_haldar your app is probably through review by now, what did you end up doing?

6

@roee

Thanks for sharing. Do you have any tips or tutos for this specific case (inside ChatGPT app) or similar cases?

Would be awesome to get it somewhere.