Google Ads MCP

Read-only MCP server for the Google Ads API. Eleven tools cover discovery, GAQL reporting, resource schema, recommendations, keyword planning and forecasts, and change history for any account reachable under a manager account (MCC). We run this server in production for every ads client. Read-only is enforced at three layers: no mutate or apply service imports, an SDK method allowlist, and a GAQL-starts-with-SELECT guard.

Install

Claude Code:

claude mcp add google-ads \
  -e GOOGLE_ADS_DEVELOPER_TOKEN=your-token \
  -e GOOGLE_ADS_CLIENT_ID=your-client-id \
  -e GOOGLE_ADS_CLIENT_SECRET=your-client-secret \
  -e GOOGLE_ADS_REFRESH_TOKEN=your-refresh-token \
  -e GOOGLE_ADS_LOGIN_CUSTOMER_ID=1234567890 \
  -- uvx scalably-google-ads-mcp

Codex:

codex mcp add google-ads \
  --env GOOGLE_ADS_DEVELOPER_TOKEN=your-token \
  --env GOOGLE_ADS_CLIENT_ID=your-client-id \
  --env GOOGLE_ADS_CLIENT_SECRET=your-client-secret \
  --env GOOGLE_ADS_REFRESH_TOKEN=your-refresh-token \
  --env GOOGLE_ADS_LOGIN_CUSTOMER_ID=1234567890 \
  -- uvx scalably-google-ads-mcp

Claude Desktop: download google-ads-mcp.mcpb from the latest GitHub release and open it.

Setup

This is the heaviest setup in the gallery: expect up to two days waiting on developer token approval. One set of credentials, rooted at a manager account (MCC), can read any customer account linked under it, so there is no per-client configuration beyond linking an account to the MCC.

1. Google Ads developer token. Sign in at ads.google.com under your manager account, go to Tools and Settings, API Center, and apply for a developer token. A new token starts on the Explorer access level, which Google grants after a review that can take a few days; discovery, query and recommendation tools work there. Basic access (a separate application) is needed for higher quotas and may be needed for the keyword-planning tools.
2. Google Cloud OAuth client. In a Google Cloud project, enable the Google Ads API, then create an OAuth client ID of type Desktop app under APIs and Services, Credentials. Note the client ID and client secret, and add the https://www.googleapis.com/auth/adwords scope to the OAuth consent screen.
3. Refresh token. Generate a refresh token once, as an admin user of the manager account, using Google's oauth2l tool or the generate_user_credentials.py example shipped with the google-ads Python library. Save the refresh token; it does not expire from normal use.
4. Login customer ID. Use the 10-digit customer ID of the manager account itself (no hyphens) as GOOGLE_ADS_LOGIN_CUSTOMER_ID. Any client account accepts an invite to link under this manager account in its own Google Ads UI, after which google_ads_list_customer_clients sees it.

Tools (11)

Tool	What it does
google_ads_list_accessible_customers	List every customer_id the OAuth user has direct access to
google_ads_list_customer_clients	Walk the MCC hierarchy and return every child account
google_ads_query	Run a GAQL query against a specific customer account
google_ads_describe_resource	Schema (fields, metrics, segments) for a GAQL resource
google_ads_list_resources	Return the full catalog of GAQL resources
google_ads_recommendations	Read Google's optimization recommendations for a customer account
google_ads_keyword_ideas	Generate keyword ideas with search volume, competition and CPC estimates
google_ads_keyword_historical_metrics	Historical monthly search-volume and competition metrics for specific keywords
google_ads_keyword_forecast_metrics	Forecast KPIs for a proposed keyword plan
google_ads_change_events	Audit trail of who changed what, last 30 days
google_ads_change_status	Lightweight last-modified change tracker per resource

Configuration

Variable	Required	Purpose
GOOGLE_ADS_DEVELOPER_TOKEN	yes	Google Ads API developer token from the Ads API Center
GOOGLE_ADS_CLIENT_ID	yes	OAuth2 client_id for a Desktop-app credential
GOOGLE_ADS_CLIENT_SECRET	yes	OAuth2 client_secret paired with the client_id
GOOGLE_ADS_REFRESH_TOKEN	yes	Long-lived OAuth2 refresh_token for the adwords scope
GOOGLE_ADS_LOGIN_CUSTOMER_ID	yes	10-digit customer ID of the manager account (MCC), no hyphens
GOOGLE_ADS_API_VERSION	no	Google Ads API version to target, default v25
GOOGLE_ADS_USE_PROTO_PLUS	no	Use proto-plus message types, default true
GOOGLE_ADS_LOG_LEVEL	no	Python log level, default WARNING

Reply shape

Every tool returns JSON with status (succeeded, partial, no_op), operation, summary, target, result, proof, warnings, recovery. Failures surface as a tool error whose text is google_ads_request_failed: <message> <hint>. proof.apiVersion names the Google Ads API version used. proof.microsConverted is set on google_ads_query. A partial status means the result hit its configured bound (max_rows, page_size or limit); recovery.nextAction says how to continue.

Limits

google_ads_query responses are capped at 64 MB per call by the Google Ads API; split large date ranges across calls. KeywordPlanIdeaService (keyword ideas, historical metrics, forecasts) is rate-limited to 1 query per second and may require Basic Access if you get a permission error on the Explorer tier. google_ads_change_events covers up to 30 days back; google_ads_change_status covers up to 14 days back. metrics.cost_micros and other *_micros fields are 1 unit = $0.000001; google_ads_query emits a matching *_units field alongside when convert_micros is true (the default).

Verify

Each release lists the package version, the .mcpb sha256 and the production commit it was derived from in CHANGELOG.md. CI runs the tests and a clean install of the built wheel on every push.

Privacy Policy

This server runs locally, on your machine, under your own credentials. It collects no personal data, contains no telemetry, stores nothing persistently, and talks only to the vendor API it wraps. No third party, including Scalably, receives your data. Contact: [email protected]. Canonical copy: https://scalably.io/connector-privacy.html

License

MIT. Copyright Scalably.