GA4 MCP Server (wonyoungseong/ga4-mcp-server) is an MCP server listed on the M8ven Trust Index. It scores 56 out of 100, grade D. It declares 7 tools. No publisher has claimed this listing.

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D
Caution
56/100

GA4 MCP Server

Enables interaction with Google Analytics 4 to manage accounts, run standard or realtime reports, and validate event parameters. It supports dual authentication methods and integrates with GTM for end-to-end data collection orchestration.

→ wonyoungseong/ga4-mcp-server· listed on glama

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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Who stands behind it

wonyoungseong

Source: Glama

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Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
⚠️
Known vulnerabilities in dependencies: 5 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
🔐
You'll be asked for 3 credentials: GA4_ACCESS_TOKEN, GA4_CLIENT_SECRET, GA4_REFRESH_TOKEN
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// tools this server exposes7 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

ga4_account_summaries

Retrieves information about the user's Google Analytics accounts and properties. Returns a list of all GA4 accounts and their associated properties that the authenticated user has access to.

ga4_property_details

Returns details about a specific GA4 property including its name, display name, time zone, currency, industry category, and other settings.

ga4_google_ads_links

Returns a list of links to Google Ads accounts for a GA4 property. Shows which Google Ads accounts are connected to the property for data sharing.

ga4_property_annotations

Returns annotations for a GA4 property. Annotations are notes that mark specific dates or periods, typically used to record events like releases, campaigns, or traffic changes.

ga4_run_report

Runs a Google Analytics Data API report. Returns analytics data based on the specified dimensions, metrics, and date ranges. ## Hints for arguments ### Hints for dimensions The dimensions list must consist solely of either: 1. Standard dimensions from https://developers.google.com/analytics/devgui…

ga4_run_realtime_report

Runs a Google Analytics Data API realtime report. Returns real-time analytics data for the last 30 minutes. ## Hints for arguments ### Hints for dimensions Use realtime dimensions from https://developers.google.com/analytics/devguides/reporting/data/v1/realtime-api-schema#dimensions Or user-scoped…

ga4_custom_dimensions_metrics

Retrieves the custom dimensions and metrics defined for a GA4 property. Use this to discover what custom definitions are available before running reports.

// known CVEs in dependencies5 high

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.18.1GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.18.1GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.18.1GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highxlsx@0.18.5GHSA-4r6h-8v6p-xvw6

Prototype Pollution in sheetJS

highxlsx@0.18.5GHSA-5pgg-2g8v-p4x9

SheetJS Regular Expression Denial of Service (ReDoS)

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// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
🔐 secretGA4_ACCESS_TOKENOAuth access token
configGA4_CLIENT_IDexport ="your-client-id.apps.googleusercontent.com"
🔐 secretGA4_CLIENT_SECRETexport ="your-client-secret"
🔐 secretGA4_REFRESH_TOKENOAuth refresh token
configGA4_SERVICE_ACCOUNT_JSON1. Set environment variable with JSON string
configGOOGLE_APPLICATION_CREDENTIALS2. Set to the JSON file path
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

7/7 tools missing one or more hints — ga4_account_summaries (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); ga4_property_details (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); ga4_google_ads_links (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +4 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

License file

No license file

Add a LICENSE file (MIT, Apache-2.0, etc.).

Tests exist

No test files found

Add tests that exercise each declared tool.

Production dependencies are patched

0 critical, 5 high severity in production deps — @modelcontextprotocol/sdk@1.18.1 (high), @modelcontextprotocol/sdk@1.18.1 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
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commit: 7da0f6988b01b5b3abc553dad5b2e83baae2dcb2
code hash: f816e85d582ab38b33a96b78a61b466178b93af1e8f4c964979b16672729e0d0
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