PaidSync connects Google Analytics 4 to Gemini via MCP. Gemini gets read access to your traffic, sessions, conversions, and attribution data. Ask plain-English questions. Get real GA4 data back.
Setup time: 2 minutes. Free plan available. No credit card required.
PaidSync joins Gemini as a custom app, or through Gemini CLI, Antigravity or Gemini Enterprise. No API key is needed, because Gemini connects with a PaidSync sign-in (OAuth).
Before you start
Gemini app, personal account. Open gemini.google.com, go to Settings, then Connected Apps (if you do not see it, open Personal Intelligence first), and under Custom apps choose Add a custom app. Paste the PaidSync server URL and click Next. PaidSync registers itself, so there is no API key to copy and nothing to fill in under Advanced features.
https://mcp.paidsync.ai/mcpAdd it on the web once and it works in the Gemini mobile app too. Google limits custom apps to personal Google accounts, age 18 and over, in the US, in English, with Keep Activity turned on. A work or school account cannot add them, so use Gemini Enterprise below instead.
Gemini CLI. Run the command, then type /mcp auth paidsync and sign in with your PaidSync login. Google replaced Gemini CLI with Antigravity CLI for unpaid-tier and Google One users on 18 June 2026, so those accounts use Antigravity below.
gemini mcp add --transport http paidsync https://mcp.paidsync.ai/mcpGemini Code Assist agent mode in VS Code reads the same settings file as Gemini CLI. Add this to ~/.gemini/settings.json:
{
"mcpServers": {
"paidsync": { "httpUrl": "https://mcp.paidsync.ai/mcp" }
}
}Antigravity uses a different key. Open the agent panel menu, choose MCP Servers, then Manage MCP Servers and View raw config, or edit ~/.gemini/config/mcp_config.json, and add the server with serverUrl. Antigravity signs in by dynamic client registration on its own:
{
"mcpServers": {
"paidsync": { "serverUrl": "https://mcp.paidsync.ai/mcp" }
}
}Gemini Enterprise, Business edition. A team admin adds PaidSync under Settings and help, then Manage team, then Connected apps, then Add MCP Server. PaidSync serves the Streamable HTTP transport Gemini requires and OAuth 2.0 at https://api.paidsync.ai/authorize and https://api.paidsync.ai/token. Email support@paidsync.ai for the client credentials that form asks for.
The PaidSync sign-in screen opens. Pick Continue with Google, or sign in with your PaidSync email and password. A PaidSync screen then asks whether to allow Gemini to manage your ad accounts via PaidSync. Press Approve and PaidSync is connected.
New to PaidSync and signing in with Google? Your free account (15 tasks a month, no credit card) is created when you press Approve. The screen also mentions ad accounts already connected inside PaidSync. On a new account that list is empty until you finish step 3.
In any chat, ask: "Connect my GA4." Gemini replies with a link that opens Google's own sign-in and consent screen. Sign in with the Google account that has access to your GA4 property and approve access. PaidSync asks Google for the analytics.edit and analytics.readonly scopes, so Gemini can read reports and make the admin changes you ask for. PaidSync never sees your Google password.
Come back and ask: "List my GA4 properties." Gemini uses list_ga4_properties to show every property your Google login can open, and you tell it which one to use. Connecting and listing properties uses none of your tasks. Then try: "Show me GA4 sessions and conversions for the last 7 days." You can also connect GA4 from the PaidSync dashboard instead. Both routes use the same PaidSync login, so Gemini sees the property either way.
Gemini can read every GA4 report and also configure the property: create and delete key events, custom dimensions, custom metrics, audiences, and Google Ads links, and update enhanced measurement. Check each change before you tell Gemini to apply it. GA4 has no campaigns, so there is nothing to launch or pause.
Each prompt runs on the PaidSync tools named after it and uses one or more of your tasks. Prompts 8 and 9 make a change in your GA4 property.
get_ga4_property, list_ga4_data_streams, list_ga4_conversion_events and get_ga4_enhanced_measurement, then lists the gaps it finds.run_ga4_realtime_report, which returns active users and event counts for the last 30 minutes.run_ga4_report with landing page as the dimension.run_ga4_report by session source and medium for each month and compares the two.run_ga4_report with event name and event count, then compares the steps. These are event totals, not a GA4 funnel exploration.run_ga4_report for daily sessions over the last 15 days and compares yesterday with the 14 days before it.run_ga4_report and the Google Ads tool get_campaign_performance through the same PaidSync connection.create_ga4_conversion_event. The event must already be firing, and the change applies on the first call, so check it before you confirm.create_ga4_audience, which qualifies users on one event. The change applies on the first call, so check it before you confirm.Reports and changes in one place. PaidSync has 26 GA4 tools. Most read your reports; the rest make changes you ask for, such as marking key events, creating custom dimensions or linking Google Ads. Google's own GA4 MCP server is experimental, runs on your own machine and only reads (checked 29 Sep 2026).
Cross-platform reasoning. The same PaidSync connection covers Google Ads, Meta, LinkedIn, TikTok, Snapchat, Reddit, Pinterest, Microsoft Ads, Google Tag Manager and Merchant Center. Gemini can pull GA4 conversion data, compare it with Google Ads, find the Tag Manager tag that fires the event, and propose a fix in one thread.
This guide is for the Gemini app. In Gemini CLI the same PaidSync connection is one command:
gemini mcp add --transport http paidsync https://mcp.paidsync.ai/mcpStart a session, type /mcp auth paidsync, and sign in with your PaidSync login in the browser window that opens. Gemini CLI stores the OAuth token for you. No key is pasted anywhere. Google replaced Gemini CLI with Antigravity CLI for unpaid-tier and Google One users on 18 June 2026, so those accounts add PaidSync in Antigravity instead, as step 1 shows. Then connect your GA4 account as in step 3.
list_ga4_properties, which uses none of your tasks.paidsync_context first. It returns your connected platforms and the full tool list, GA4 included, and Gemini then runs those tools through paidsync_exec. If PaidSync is missing from Gemini altogether, check that it is listed under Settings, then Connected Apps.In the Gemini app on a personal Google Account, open Settings, then Connected Apps, choose Add a custom app and paste https://mcp.paidsync.ai/mcp. Gemini CLI, Antigravity and Gemini Enterprise take the same endpoint, and step 1 covers each. Sign in to PaidSync and press Approve, then ask Gemini to connect your GA4 account. No API key is needed. Full steps are above.
Gemini can access sessions, users, pageviews, conversions, revenue, bounce rate, channel grouping, landing page performance, device breakdowns, and custom event data from your GA4 property.
PaidSync requests https://www.googleapis.com/auth/analytics.edit together with analytics.readonly. That covers reports plus property configuration (key events, custom dimensions and metrics, audiences, Google Ads links). It cannot delete a property or touch billing.
Yes. If you connect both GA4 and Google Ads to PaidSync, Gemini can correlate ad spend with GA4 traffic and conversions to show full-funnel ROAS in a single conversation. Both connections use the same PaidSync login.
Yes. PaidSync can connect to multiple GA4 properties. Gemini can query a specific property by name or numeric property ID when you have more than one connected.
Yes. Free plan gives 15 tasks per month at $0. Pro starts at $99/month for 600 tasks. Team plans start at $249/month for 5 seats. No credit card needed to start.
PaidSync has its own pricing: the free plan is $0 for 15 tasks a month with no card, and Pro starts at $99 a month. Which Gemini surface you can use depends on your Google account, as step 1 explains.
No. PaidSync has 26 GA4 tools. Most read your reports; the rest make changes you ask for, such as marking key events, creating custom dimensions or linking Google Ads. PaidSync reads GA4 reports through the Data API and makes the admin changes you ask for, such as marking key events, through the Admin API. GA4 changes apply on the first call, so keep Gemini's approval prompt on for them.
Yes. PaidSync is one endpoint, https://mcp.paidsync.ai/mcp, with OAuth sign-in, and the same login works in Claude, Claude Code, ChatGPT, Perplexity, Microsoft Copilot through Copilot Studio, Cursor and Windsurf. Set up PaidSync once and use it from any of them.
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