Describe what you need. The agent builds the tags, triggers, and variables — you approve before anything goes live.
Automation without oversight is a liability. Every change the agent proposes is reversible, previewable, and gated by your approval.
Google's official consent flow. The agent only gets GTM scope, and you can revoke access from your Google account at any time.
The agent creates a GTM version snapshot before any write operation. Roll back in one click if anything looks wrong.
Nothing goes live without your explicit approval. Review the agent's plan, test in GTM Preview, publish on your schedule.
Consent Mode v2 configured with default-denied state, 7 consent types, and integrations with Cookiebot, OneTrust, and custom CMPs.
The agent applies naming conventions consistently, reduces variation across containers, and speeds up straightforward implementation tasks.
Scan containers for broken tags, duplicate triggers, or missing consent settings. Generate a structured report across environments at scale.
Standardize variables across containers using a unified naming schema, reducing manual renaming and improving consistency at scale.
Push configurations directly through the GTM API, reducing the need for manual JSON exports/imports and keeping deployment workflows more controlled.
Fits into existing workflows, including Claude Code or Cursor, without requiring a separate platform to manage.
Supports GDPR consent configuration and audit workflows at scale, helping teams review implementation consistency across containers.
Supports sGTM containers, including local Docker-based testing, routing server-side events to GA4, Meta, Google Ads, and LinkedIn.
Sign up with Google. Choose a plan that fits your needs — starting at $29/mo.
One-click Google OAuth grants the agent read/write access to your GTM containers. Revocable anytime.
Choose which containers to manage. The agent scans them and shows you a health report.
Type in plain English. The agent creates the tags, triggers, variables, and publishes — with your approval.
"Create a GA4 event for all clicks on buttons with class 'cta-primary' and include the page_path parameter."
Pageview, custom events, Enhanced Ecommerce, Client ID, Session ID.
Web + ServerPixel web events, Conversions API (CAPI) server-side, deduplication.
Web + ServerConversion Linker, tracking, remarketing, Enhanced Conversions, sGTM bridge.
Web + ServerWeb pixel events, TikTok Events API server-side, parameter mapping.
Web + ServerInsight tag, conversion events, LinkedIn CAPI server-side.
Web + ServerCookiebot, OneTrust, Custom CMP. Default denied, 7 consent types.
WebLCP, INP, CLS tracked in GA4. Automatic event creation.
WebMulti-platform CAPI fan-out, PII redaction, Docker testing.
ServerPlans from $29/mo. Scale as you grow. Cancel anytime.
Your 137 journey starts here. Launch a single container to build your personal site or test our capabilities. It’s the fastest, easiest way to see what 137 can do for you.
For freelancers managing a handful of sites. 137 helps you keep containers organized, audited, and running smoothly.
Designed for teams and agencies. Includes tools to manage complex tracking at scale and our direct integration for Claude and Cursor.
Full-scale tracking for large organizations. Everything you need for server-side security, custom branding, and hands-on support.
All plans include full platform access. Cancel anytime.
Scale without jumping tiers. All add-ons are prorated on your next invoice.
Go beyond your plan's container limit. Prorated, cancel anytime.
Unlock Facebook CAPI, TikTok Events API, LinkedIn CAPI, Multi-CAPI, and PII redaction on Professional — without jumping to Enterprise.
+50 extra operations when you hit your plan's cap this month. No upgrade required.
The agent uses Google OAuth 2.0 — the same secure flow as 'Sign in with Google.' You authorize access through Google's official consent screen. The agent gets read/write permissions to your GTM containers only. You can revoke access at any time.
No. The agent always creates a version snapshot before making changes. If something isn't right, you can revert in one click. Nothing is published without your explicit approval.
Basic GTM knowledge helps for reviewing, but the agent handles all complexity — variables, triggers, firing rules, consent settings — automatically. You provide your pixel IDs and goal; the agent does the rest.
One meaningful action — installing a full pixel setup, running an audit, setting up Consent Mode v2, or cleaning up a container. Simple lookups don't count.
Server-side tagging (Facebook CAPI, TikTok Events API, LinkedIn CAPI) is included on Enterprise, and available as a $199/mo add-on on Professional — full sGTM suite including clients, transformations, PII redaction, and Multi-CAPI orchestration.
Yes — Discovery 1 container, Starter 3, Professional 15, Enterprise unlimited. Need a few more on Pro? Add container slots for $15/mo each (prorated, cancel anytime). Multi-container comparison on Pro+ lets you spot inconsistencies across all clients.
Start with a free audit. No credit card. Plans from $29/mo when you're ready.