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admob-mcp MCP server · C · ToolBench

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admob-mcp

github.com/willhou/admob-mcp

MCP server for Google AdMob API

2026-07-28+STDIO7 tools

62/100

Definition Quality81

Protocol Readiness47

Supportability41

Spec posture

Inferred effective spec 2026-07-28+·current baseline 2026-07-28

Static source inference · medium confidence · detected: Dynamic Client Registration

Deprecated protocol patterns detected

Summary

AdMob MCP has well-structured tool definitions with complete schemas and descriptions for all 7 tools. All tools use proper verb_noun naming (list_, get_, generate_). Descriptions are present and informative, ranging from 30 - 400+ chars. Input schemas use Zod validation with type definitions and parameter descriptions. However, output schemas are not documented, responses are JSON-stringified without field-level documentation. Error handling is minimal; no recovery guidance or actionable error messages. No tool annotations (readOnlyHint, destructiveHint, idempotentHint) despite all tools being READ_ONLY. Parameter constraints are documented in descriptions but not enforced via enums where applicable (e.g., dimensions and metrics in report tools accept free-form strings). Missing pagination guidance for list tools.

Tools (7)

generate_mediation_reportread onlyauthsource verified80/100

Generate a mediation report for an AdMob account. Available dimensions: DATE, MONTH, WEEK, AD_SOURCE, AD_SOURCE_INSTANCE, AD_UNIT, APP, MEDIATION_GROUP, COUNTRY, FORMAT, PLATFORM, MOBILE_OS_VERSION, GMA_SDK_VERSION, APP_VERSION_NAME, SERVING_RESTRICTION Note: Only one time dimension (DATE, MONTH, or WEEK) per request. Available metrics: AD_REQUESTS, CLICKS, ESTIMATED_EARNINGS, IMPRESSIONS, IMPRESSION_CTR, MATCHED_REQUESTS, MATCH_RATE, OBSERVED_ECPM Note: ESTIMATED_EARNINGS and OBSERVED_ECPM are in micros (divide by 1,000,000).

generate_network_reportread onlyauthsource verified80/100

Generate a network report for an AdMob account. Available dimensions: DATE, MONTH, WEEK, AD_UNIT, APP, AD_TYPE, COUNTRY, FORMAT, PLATFORM, MOBILE_OS_VERSION, GMA_SDK_VERSION, APP_VERSION_NAME, SERVING_RESTRICTION Note: Only one time dimension (DATE, MONTH, or WEEK) per request. AD_TYPE is incompatible with AD_REQUESTS, MATCH_RATE, IMPRESSION_RPM metrics. Available metrics: AD_REQUESTS, CLICKS, ESTIMATED_EARNINGS, IMPRESSIONS, IMPRESSION_CTR, IMPRESSION_RPM, MATCHED_REQUESTS, MATCH_RATE, SHOW_RATE Note: ESTIMATED_EARNINGS is in micros (divide by 1,000,000 for actual currency).

get_accountread onlyauthsource verified85/100

Get details for a specific AdMob account

list_accountsread onlyauthsource verified83/100

List AdMob publisher accounts

list_ad_unitsread onlyauth

Issues (5)

HIGHtool ↗

Output schemas not documented. Tools return JSON-stringified data without field-level documentation. LLMs cannot plan downstream operations or extract specific fields reliably.

list_accountsget_accountlist_ad_unitslist_appsgenerate_network_reportgenerate_mediation_reportrevenue_trend

MEDIUMtool-annotations ↗

No tool annotations despite all tools being READ_ONLY. Missing readOnlyHint metadata prevents agents from understanding safety properties and optimizing execution.

list_accountsget_accountlist_ad_unitslist_appsgenerate_network_reportgenerate_mediation_reportrevenue_trend

MEDIUMconstrained-input ↗

Dimension and metric parameters in report tools accept free-form strings instead of enums. Descriptions list valid values but no schema constraint prevents hallucinated invalid values.

generate_network_reportgenerate_mediation_report

Recommendations

Document output schemas for all tools. Specify field names, types, and meanings. Example: 'list_accounts returns {accounts: [{id: string, displayName: string, currencyCode: string}], totalCount: number}'.
Add readOnlyHint: true to all tool definitions via server.tool() metadata or MCP tool annotations to signal safety to agents.
Convert dimensions and metrics parameters to enums in generate_network_report and generate_mediation_report. Replace free-form strings with z.enum([...]) to prevent invalid values.
Add pagination documentation to list_* tools. Specify max result limits, explain page_token semantics, and document total count field in responses.
Implement structured error handling. Catch API errors and return actionable messages: 'Account not found. Verify account_id format (e.g., pub-1234567890123456)' instead of raw API errors.

Spec posture evidence

Inferred effective spec: 2026-07-28+.

Relies on Dynamic Client Registration (deprecated) - use Client ID Metadata Documents (CIMD)

Score history

Overall score trend

First recorded score · v2 rubric

62/100

Scored	Grade	Overall	Spec posture	Rubric
2026-09-23	C	62	2026-07-28+	v2