Google Analytics 4 / API Reference
ga4_core_web_vitals
GA4 analytics tool. Return Core Web Vitals data from GA4 (LCP, FID/INP, CLS) broken down by page path. Args: property_id: GA4 property ID start_date: YYYY-MM-DD (default: 28 days ago) end_date: YYYY-MM-DD (default: today) limit: Max page rows to return (default: 25)
This is a read-only tool: it returns core web vitals for your Google Analytics 4 account. It changes nothing.
Ask Claude
You do not call this tool yourself. Ask for the outcome and the client picks the tool:
Core web vitals in my Google Analytics 4 account.
It takes 1 required and 3 optional parameters.
Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
property_id | string | Yes | Property Id |
start_date | string | No | Start Date |
end_date | string | No | End Date |
limit | integer | No | Limit |
Related Google Analytics 4 tools
ga4_acquisition_channelsga4_attribution_pathsga4_audiencesga4_audit_property_settingsga4_available_metricsga4_bulk_create_key_events
Before you can call it
This tool needs a connected Google Analytics 4 account. The Google Analytics 4 connect guide covers the OAuth flow and the permissions it asks for, and the quickstart gets a client talking to the server in about five minutes.
Workflows that use this
Rather than calling tools one at a time, these skills run a whole procedure against the same account: