Google Tag Manager MCP server
SeePM is a Google Tag Manager MCP server: it connects your GTM containers to Claude, ChatGPT and any other MCP client, using your Google sign-in. Audit the live container, edit tags in a draft workspace and publish a version with a rollback point. It is off until an admin turns it on, and it is on paid plans only.
Off by default. An admin of your SeePM organization turns Tag Manager on. Publishing and deleting need a second switch.
| Status | Live, off by default |
|---|---|
| Tools | 40+ to read and change, plus a governed API request |
| Login | Your Google sign-in, plus Tag Manager permissions you allow separately with "Allow Tag Manager" |
| Works in | Claude, ChatGPT, Codex, Cursor, Grok, any MCP client, the SeePM app |
| Price | Paid plans, admin turns it on |
What you can ask
Plain-language requests, the way you would ask a colleague. The label says which kind of work it is.
Audit the live container. Is anything broken or duplicated?
Container checkIs the Google Ads conversion tag set up and firing on purchase?
Conversion tracking auditWhat is in the draft that is not live yet?
Draft vs livePause the old Meta pixel tag in a new workspace.
ChangePublish this version, and tell me how to roll back.
Publish
What it can read and change
As of October 2026, SeePM's Google Tag Manager MCP has 40+ tools that read and change, plus a governed request for anything the other tools do not cover.
Reads
| Live container | the whole live version in one call, versions, environments |
|---|---|
| Workspace | tags, triggers, variables, folders, templates, built-in variables, workspace status, preview |
Changes
| Draft | create and update tags, triggers, variables and folders, pause or activate tags, revert, sync |
|---|---|
| Versions | create a version, publish it |
| Delete | tags, triggers, variables, folders |
Tool total from SeePM's tool manifest on October 30, 2026, rounded down to the nearest 5. The generic request is classified per call: a read stays a read, and a write is checked like any other change.
How changes stay safe
- You decide who changes what. Each tool has a risk level, and your organization sets each level to auto, ask or deny per role. A change on "ask" waits in the approvals queue until a leader of the client or an admin approves it.
- You can preview a change first: Tag Manager tools take a dry run where the API supports it, and changes go to a draft workspace before any version is published.
- A change that asks to go past a platform safety limit (a large budget jump, for example) always waits for a person, admins included.
- A change runs once. After it runs, the server reads the object back and SeePM shows what the platform now has. If that differs from what you asked, SeePM says so and does not send the change again.
- Off by default. An admin turns Tag Manager on for the organization.
- Publishing and deleting need a second switch, "Allow publishing and deletes", for every role, admins included.
- Only leaders and admins can make changes. A publish reports the previous live version as the rollback point.
- Audits start with one call that reads the whole live container.
How to connect
AI apps
| App | How | Needs |
|---|---|---|
| Claude and Claude Code | Add SeePM as a connector in Claude, or to Claude Code in the terminal, and sign in once. | Any Claude plan that has connectors |
| ChatGPT and Codex | Add SeePM as a connector in ChatGPT, or to Codex in the terminal. Same sign-in. | ChatGPT connectors need Developer mode (Pro, Business, Enterprise, Edu) |
| Cursor and Grok | Add SeePM's server URL. | Guides in SeePM under Connect AI |
| Any MCP client | Add SeePM's server URL: www.seepm.app/api/mcp. | The app must support remote MCP servers |
| SeePM app | Chat, automations, account links and your business notes on the web. No other AI needed. | Starter or Plus |
GTM login
Your Google sign-in, plus Tag Manager permissions you allow separately with "Allow Tag Manager". SeePM submitted these permissions to Google for verification on October 23, 2026. You can disconnect it from Settings at any time. If a client has only one GTM account, SeePM uses it without you naming it.
Price
Paid plans only: Starter, $20 USD a month, or Plus, $100 USD a month. An admin turns it on. Claude and ChatGPT bill their own plans.
Questions
Why is it off by default?
A tag change alters what fires on the client's site, and with it the measurement for every ad platform. An admin decides whether the organization uses it.
Can it publish on its own?
Only if an admin has turned on "Allow publishing and deletes", and only for leaders and admins. Changes go to a draft workspace first.
Is the GTM MCP free?
No. Tag Manager is on paid plans only.
Does the Google Tag Manager MCP work with ChatGPT?
Yes. Add SeePM as a connector in ChatGPT; connectors need Developer mode, which comes with the Pro, Business, Enterprise and Edu plans. Codex works from the terminal.
Connect GTM to your AI
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