AgentIndex icon
AgentIndex
mcp-js logo
mcp-js
★ 62
vs
gtm-mcp-server logo
gtm-mcp-server
★ 179

mcp-js vs gtm-mcp-server

mcp-js: mcp-v8 provides a secure and efficient JavaScript/TypeScript runtime for AI agents, allowing them to execute code within a sandboxed V8 isolate. It simplifies agent development by offering a single, powerful `run_js` tool instead of multiple narrow utilities, supporting durable state and policy-gated capabilities.; gtm-mcp-server: gtm-mcp-server enables AI assistants to manage Google Tag Manager containers through natural language conversations. It automates tasks like creating tags, auditing configurations, generating tracking plans, and publishing changes across various AI clients.

01

TL;DR

mcp-js logo
mcp-jsWorkflow Automation · ★ 62

Enabling AI agents to execute complex, procedural logic (loops, branches, data transformations)

Read mcp-js full review →
gtm-mcp-server logo
gtm-mcp-serverWorkflow Automation · ★ 179

Automate the creation of comprehensive GA4 ecommerce tracking implementations from scratch, including tags, triggers, and variables.

Read gtm-mcp-server full review →
02

Side-by-Side Comparison

Field
mcp-js logomcp-js
gtm-mcp-server logogtm-mcp-server
Category
Workflow Automation
Workflow Automation
Stars
★ 62
★ 179
License
AGPL-3.0
BSD-3-Clause
Install Command
curl -fsSL https://raw.githubusercontent.com/r33drichards/mcp-js/main/install.sh | sudo bash
git clone https://github.com/paolobietolini/gtm-mcp-server.git && cd gtm-mcp-server && docker compose up -d
Updated
2d ago
2d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
JavaScript Runtime, TypeScript Runtime, AI Agent Development
Google Tag Manager, AI Automation, Model Context Protocol
03

Features

mcp-js logomcp-js
01JavaScript & TypeScript execution in a sandboxed V8 isolate
02Durable state with content-addressed V8 heap snapshots
03Secure by default with configurable policy-gated capabilities
04Simplifies AI agent development with a single `run_js` tool for complex logic
05Production-ready with authentication, clustering, and multiple transport options
gtm-mcp-server logogtm-mcp-server
01AI-driven creation and modification of various GTM tag types, including GA4, Custom HTML, and Ecommerce tags.
02Automated building of triggers for diverse scenarios like page views, custom dataLayer events, and form submissions.
03Advanced AI workflows for container auditing, tracking plan generation, and GA4 setup recommendations.
04Comprehensive support for managing server-side GTM containers, including clients and transformations.
05Ability to import templates directly from the Google Community Template Gallery using natural language.
04

Use Cases

mcp-js logomcp-js
↳Enabling AI agents to execute complex, procedural logic (loops, branches, data transformations)
↳Developing stateful AI agents that persist context and variables across interactions
↳Securely orchestrating external tools and APIs for agents with fine-grained access policies
↳Building extensible AI agent tools by composing other Model Context Protocol (MCP) servers
gtm-mcp-server logogtm-mcp-server
↳Automate the creation of comprehensive GA4 ecommerce tracking implementations from scratch, including tags, triggers, and variables.
↳Integrate consent management platforms like OneTrust by configuring GA4 to fire only with granted analytics consent.
↳Perform bulk operations such as renaming, updating, or organizing numerous GTM items across containers efficiently.
05

Best For

mcp-js logomcp-js
—
gtm-mcp-server logogtm-mcp-server
Hidden Gem
FAQ

FAQ

What is the difference between mcp-js and gtm-mcp-server?
Both mcp-js and gtm-mcp-server are in the Workflow Automation category. mcp-js has 62 stars, while gtm-mcp-server has 179 stars.
Which is better, mcp-js or gtm-mcp-server?
The best choice depends on your use case. Choose mcp-js if Enabling AI agents to execute complex, procedural logic (loops, branches, data transformations), and gtm-mcp-server if Automate the creation of comprehensive GA4 ecommerce tracking implementations from scratch, including tags, triggers, and variables..
Is mcp-js free or open source?
Yes, mcp-js is open source on GitHub (AGPL-3.0).
Is gtm-mcp-server free or open source?
Yes, gtm-mcp-server is open source on GitHub (BSD-3-Clause).
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Related

Alternatives to mcp-js →Alternatives to gtm-mcp-server →mcp-js details →gtm-mcp-server details →