How to connect Google Analytics 4 to ChatGPT

Written by Uptimal, the team that builds and operates Upbuild and runs marketing analytics for multinational clients across the globe. Everything below reflects how the connector actually behaves in production.

ChatGPT plus the GA4 Data API is the fastest route from “how did the site do” to an actual number with context. Current 2026 steps, plugin era:

The ChatGPT path

ChatGPT needs Developer mode first: Settings, Security and login, switch on Developer mode. Then Settings, Plugins, Browse plugins, hit the + button and fill the New Plugin dialog: name Upbuild, Connection on Server URL with https://connector.upbuild.app/mcp, Authentication OAuth, tick the custom-server notice, Create. The setup guide shows every screen.

OAuth with the Google account holding property access; Viewer level suffices, and every property you can see becomes queryable.

Prompts that earn their keep

• “Write Monday’s traffic summary: sessions, key events, top channels, week over week.”
• “Anything anomalous yesterday versus the trailing 28 days?”
• “Top products by revenue this month, with conversion rate.”

Quota sanity

The Data API meters properties per hour and day; a conversational session is fine, a runaway loop is not, which is why the connector caches identical requests briefly. Numbers and edge cases live in the quota explainer, platform depth in the GA4 guide.

Frequently asked questions