gtm-mcp-server
⚠ Stale — 202d agoProvides an MCP (Model Context Protocol) server that lets an LLM manage Google Tag Manager (GTM) accounts/containers/workspaces: read GTM entities, create/update/delete tags, triggers, variables, templates, and server-side GTM components, and version/publish changes via guided actions with safety confirmations.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Uses OAuth 2.1 with PKCE and claims token-based authentication with revocation. README includes safety confirmations for deletions/publishing and workspace-only changes until publish. However, provided content does not detail scope granularity, TLS requirements explicitly, or operational security controls (logging/redaction, audit retention), so scores reflect partial documentation.
⚡ Reliability
Best When
You want an LLM-driven, tool-based workflow (with MCP + OAuth) to read and make structured GTM changes, including safe versioning and optional confirmations before destructive actions.
Avoid When
You cannot authenticate/authorize via the described OAuth flow, or you need guarantees about rate limits, reliability, and error recovery behaviors beyond what’s documented.
Use Cases
- • Generate and maintain GA4/ecommerce tracking setups in GTM via natural language
- • Audit GTM containers for issues (duplicates, naming inconsistencies, orphaned items, best-practice/security concerns)
- • Create triggers, variables, and templates for common measurement patterns
- • Implement consent-aware tracking logic (e.g., fire tags only when analytics consent is granted)
- • Bulk update/rename/organize GTM items across large containers
- • Agencies standardizing multiple client GTM implementations and publishing via versioning
- • Server-side GTM setup for clients and event transformations
Not For
- • Replacing Google Tag Manager UI for teams that need full UI workflows and fine-grained manual control
- • Use cases requiring tight SLAs where failures or partial changes cannot be tolerated
- • Highly regulated environments without assurance of logging, auditability, and data handling practices beyond what’s documented
Interface
Authentication
README describes OAuth 2.1 + PKCE and token-based auth that can be revoked; it does not specify exact scopes/granularity in the provided text.
Pricing
No pricing information provided; likely self-hostable only (per Docker instructions) and/or an externally hosted MCP URL.
Agent Metadata
Known Gotchas
- ⚠ Google Tag Manager API may silently drop certain trigger condition fields (e.g., `autoEventFilter`) when creating/updating certain trigger types.
- ⚠ Without explicit idempotency guarantees, agents should avoid blindly retrying write operations; prefer pre-checks (e.g., list/get then update) and confirmation steps before deletes/publish.
Alternatives
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Scores are editorial opinions as of 2026-03-30.