List all GTM accounts accessible to the authenticated user. Returns account IDs, names, and share-data flags.

Get details of a specific GTM account.

List all GTM containers within a GTM account. Automatically follows pagination to return all containers.

Get details of a specific GTM container.

[WRITE] Create a new GTM container. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

[WRITE] Set a SERVER container's taggingServerUrls (the deployed tagging-server URL, e.g. from Cloud Run/Stape). Read-modify-write via containers.update so the other container fields are preserved; rejects a non-server container. Records the URL in config only — it does NOT deploy the host. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

Get the GTM installation snippet (HTML/JS tagging code) for a container.

Look up a GTM container by its linked destination ID (e.g. a GA4 measurement ID or tag ID).

[WRITE] Combine (merge) another container into this one. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. ⚠️ This merges the source container identified by containerIdToCombine into the target container.

[WRITE] Move a Tag ID out of a container into a new container. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

List all destinations (linked Google tags / GA4 destinations) for a GTM container.

Get details of a specific GTM destination.

[WRITE] Link a destination (Google tag / GA4 destination) to a GTM container. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

List all workspaces within a GTM container. Automatically follows pagination to return all workspaces.

Get details of a specific GTM workspace.

[WRITE] Create a new workspace. Requires GTM_MCP_ENABLE_WRITES=true.

Get the status of a GTM workspace: the list of changed entities (workspaceChange) relative to the latest container version, plus any merge conflicts. Use this to review a change diff before creating a version or publishing.

Syncs a workspace to the latest container version by updating all unmodified workspace entities. Returns a list of merge conflicts if any.

Resolve a merge conflict for a workspace entity. You must supply the full entity body to write into the workspace (overwriting the conflict). NOTE: This is a complex operation — review the GTM UI conflict resolution first.

List all GTM tags in a workspace. Automatically follows pagination to return all tags.

Get details of a specific GTM tag.

[WRITE] Create a new GTM tag. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. Pass the full tag configuration as parameters.

[WRITE] Update an existing GTM tag (read-modify-write). Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. GTM's API replaces the WHOLE tag on update, so this tool first fetches the tag and only overlays the fields you pass — omitted fields are preserved. parameter is MERGED with the existing parameters BY KEY (a same-key param replaces, new keys are added, untouched keys are kept), so you will NOT wipe a GA4 tag's eventName/measurementId. To add GA4 EVENT parameters to a gaawe tag, prefer tags_add_ga4_event_parameters (event params live in the nested eventSettingsTable, which this generic parameter list cannot express).

[WRITE] Add GA4 event parameters to a GA4 Event tag (type "gaawe"). Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. Fetches the tag, APPENDS the parameters to its eventSettingsTable (the correct place for GA4 event parameters — top-level params are ignored by GA4 event tags), and saves the FULL tag so eventName/measurementId stay intact. A parameter whose name already exists has its value updated (not duplicated). Values may be GTM variables, e.g. {{Click Text}}.

[DELETE] Delete a GTM tag. Requires GTM_MCP_ENABLE_DELETES=true and confirm=true. This is irreversible in the workspace (the tag is removed from the workspace).

List all GTM triggers in a workspace. Automatically follows pagination to return all triggers.

Get a specific GTM trigger.

[WRITE] Create a GTM trigger. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

[WRITE] Update a GTM trigger (read-modify-write — omitted fields are preserved; parameter is merged by key). Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

[DELETE] Delete a GTM trigger. Requires GTM_MCP_ENABLE_DELETES=true and confirm=true.

List all user-defined GTM variables in a workspace. Automatically follows pagination to return all variables.

Get a specific GTM variable.

[WRITE] Create a GTM variable. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

[WRITE] Update a GTM variable (read-modify-write — omitted fields are preserved; parameter is merged by key). Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

[DELETE] Delete a GTM variable. Requires GTM_MCP_ENABLE_DELETES=true and confirm=true.

List all GTM folders in a workspace. Automatically follows pagination to return all folders.

Get a specific GTM folder.

List all entities (tags, triggers, variables) within a specific GTM folder.

[WRITE] Create a GTM folder. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

[WRITE] Update a GTM folder. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

[DELETE] Delete a GTM folder. Requires GTM_MCP_ENABLE_DELETES=true and confirm=true. Contents of the folder will be unfoldered, not deleted.

[WRITE] Move tags/triggers/variables into a folder. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

List all currently enabled built-in variables in a GTM workspace.

[WRITE] Enable one or more built-in variables in a GTM workspace. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

[DELETE] Disable one or more built-in variables in a GTM workspace. Requires GTM_MCP_ENABLE_DELETES=true and confirm=true.

[WRITE] Revert changes to a built-in variable in the workspace to the original container version. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

List all container version headers (summary) for a GTM container.

Get the full contents of a specific GTM container version. Pass "live" as containerVersionId to get the currently live version.

[WRITE] Create a new GTM container version from a workspace (checkpoint). Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. This takes a snapshot of the workspace into a versioned checkpoint without publishing.

[WRITE] Set a specific container version as the "latest" (synchronizes the default workspace with this version). Note: This does NOT publish. Use versions_publish to go live. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

[WRITE] Undelete a previously deleted GTM container version. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

[DELETE] Delete a GTM container version. Requires GTM_MCP_ENABLE_DELETES=true and confirm=true. Cannot delete a currently published (live) version.

Generate a quick-preview (debug) link for a GTM workspace. This does NOT publish — it just enables preview mode. Returns a preview container version with any compilation errors.

[PUBLISH] Publish a specific GTM container version to live. Requires GTM_MCP_ENABLE_PUBLISH=true and confirm=true. ⚠️ This immediately makes the version live in production.

[PUBLISH] Create a new container version from a workspace and immediately publish it. Requires GTM_MCP_ENABLE_PUBLISH=true and confirm=true. ⚠️ This is the most powerful write operation — it goes live in production immediately.

List all environments in a GTM container. Automatically follows pagination.

Get details of a specific GTM environment.

[WRITE] Create a new GTM environment. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

[WRITE] Update an existing GTM environment. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

[PUBLISH] Re-generate the authorization code for a GTM environment. Requires GTM_MCP_ENABLE_PUBLISH=true and confirm=true. ⚠️ This rotates the environment auth token; any embedded snippet using the old token stops working until updated.

[DELETE] Delete a GTM environment. Requires GTM_MCP_ENABLE_DELETES=true and confirm=true.

List all user permissions for a GTM account. Automatically follows pagination. Each record shows a user email plus their account and per-container access levels.

Get a specific user permission record for a GTM account.

[WRITE] Grant a user access to a GTM account (and optionally containers). Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

[WRITE] Update a user's account and/or container access levels. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. Provide the full intended access (account + container) as the API replaces the record.

[DELETE] Revoke a user's access to a GTM account. Requires GTM_MCP_ENABLE_DELETES=true and confirm=true.

List all GTM clients in a workspace. Automatically follows pagination.

Get a specific GTM client.

[WRITE] Create a new GTM client. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. Pass the full resource as a JSON string in bodyJson.

[WRITE] Update an existing GTM client. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. Pass the full resource as a JSON string in bodyJson.

[DELETE] Delete a GTM client. Requires GTM_MCP_ENABLE_DELETES=true and confirm=true.

[WRITE] Revert workspace changes to a GTM client back to its last container-version state. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

List all GTM transformations in a workspace. Automatically follows pagination.

Get a specific GTM transformation.

[WRITE] Create a new GTM transformation. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. Pass the full resource as a JSON string in bodyJson.

[WRITE] Update an existing GTM transformation. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. Pass the full resource as a JSON string in bodyJson.

[DELETE] Delete a GTM transformation. Requires GTM_MCP_ENABLE_DELETES=true and confirm=true.

[WRITE] Revert workspace changes to a GTM transformation back to its last container-version state. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

List all GTM zones in a workspace. Automatically follows pagination.

Get a specific GTM zone.

[WRITE] Create a new GTM zone. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. Pass the full resource as a JSON string in bodyJson.

[WRITE] Update an existing GTM zone. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. Pass the full resource as a JSON string in bodyJson.

[DELETE] Delete a GTM zone. Requires GTM_MCP_ENABLE_DELETES=true and confirm=true.

[WRITE] Revert workspace changes to a GTM zone back to its last container-version state. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

List all GTM templates in a workspace. Automatically follows pagination.

Get a specific GTM template.

[WRITE] Create a new GTM template. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. Pass the full resource as a JSON string in bodyJson.

[WRITE] Update an existing GTM template. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. Pass the full resource as a JSON string in bodyJson.

[DELETE] Delete a GTM template. Requires GTM_MCP_ENABLE_DELETES=true and confirm=true.

[WRITE] Revert workspace changes to a GTM template back to its last container-version state. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

List all GTM gtag configs in a workspace. Automatically follows pagination.

Get a specific GTM gtag config.

[WRITE] Create a new GTM gtag config. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. Pass the full resource as a JSON string in bodyJson.

[WRITE] Update an existing GTM gtag config. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. Pass the full resource as a JSON string in bodyJson.

[DELETE] Delete a GTM gtag config. Requires GTM_MCP_ENABLE_DELETES=true and confirm=true.

Inspect a GTM workspace for common analytics implementation issues. Returns structured findings with severity levels (error/warning/info). This is a read-only operation — it never modifies anything.

Export a full GTM workspace summary as structured JSON. Returns all tags, triggers, variables, folders, and built-in variables. This is a read-only operation. Use this for documentation, auditing, or feeding container data to other tools.

List GA4 account summaries accessible to the authenticated user. Each summary includes the account plus a lightweight list of its property summaries (property ID + display name). Best starting point to discover available GA4 accounts and properties. Read-only.

List GA4 properties under a given parent account. Returns full property records (display name, time zone, currency, industry, service level). Read-only.

Get a single GA4 property by ID, including display name, time zone, currency, industry category, and service level. Read-only.