AgentFirstStack Tags

Name: AgentFirstStack Tags
Author: StartGlobal-AI

by StartGlobal-AIversion 0.1.0i★ –iRuns in the cloud

Registry namecom.agentfirststack/tags

Install

Overview

Description from the maker (original English)

Tag manager with server-side conversions for GA4, Google Ads, Meta and TikTok, set up by an agent.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi3 of 3 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Marketing & social media
You need to fill in: Authorization

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 3 of 3 passed
Runs on the maker’s server: what you ask it goes through their server.
You fill in yourself: Authorization

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Run this in your terminal

claude mcp add --transport http tags https://tags.agentfirststack.com/mcp --header 'Authorization: your-value'

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "tags": {
      "url": "https://tags.agentfirststack.com/mcp",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "tags": {
      "type": "http",
      "url": "https://tags.agentfirststack.com/mcp",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

Authorization secret HTTP header
Bearer from one POST https://agentfirststack.com/v1/signup (no signup form). OAuth also works.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

The server asks you to sign in before it lists its tools.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain agentfirststack.com (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
✓ Pass
Endpoint responds
Responded in 229 ms (HTTP 401)
✓ Pass
Sign-in with OAuth
Declares OAuth sign-in, so your AI app can take you to log in
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Marketing & social mediai

More stars than 0% of the other 2956 servers in this category
Published to the registry more recently than 91% of the other 2956 servers in this category
Basic checks equal to or better than 100% of the other 2956 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is AgentFirstStack Tags safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: Authorization

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 2 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: MCP YouTube Transcript, Google Analytics MCP, BibiGPT YouTube Video Summarizer

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

AgentFirstStack

Analytics, tag management, email inboxes and session replay that an AI agent sets up by itself.

No signup form, no verification email, no dashboard to click through. Free to use, and open source.

agentfirststack.com · Manual · Self-host · Architecture

Every new website needs the same infrastructure: analytics, a tag manager with conversion tracking, and an email address to sign up for everything else. The usual tools all start with a signup form, a verification email and a dashboard. Coding agents can't get past those steps alone.

AgentFirstStack is that infrastructure, rebuilt so an agent can do the whole job:

One request gets an account. POST /v1/signup returns a key that works on every service.
Everything is an API call and an MCP tool. Nothing is hidden behind a settings page.
The manual is a text file. Each service serves /llms.txt with every endpoint, tool and field.
Every step can be verified. The agent checks its own work instead of guessing.
Humans optional. When it's done, the agent hands its person a claim link. They sign in with Google to see the project's analytics, tags, replay and mail in a dashboard, manage keys and teammates, connect Claude or ChatGPT over OAuth, and delete the project. We email them about their projects, and alert them when a site stops sending data or a project gets close to a fair-use limit (docs/accounts.md).

Services

	What it does	Instead of
[Analytics](analytics/README.md)	Cookieless web analytics. Country, region and city from Cloudflare's edge; channels including AI assistants; UTM and ad click ids; goals, funnels, paths, attribution, realtime; revenue, subscriptions and MRR from Stripe, Polar, Paddle or LemonSqueezy; ad spend and ROAS; ecommerce items; AI crawler visits; alerts and weekly reports; history imported from GA4, Plausible or any other tool, with a check that the numbers match; server-side events; read-only SQL	Google Analytics, Plausible
[Tags](tags/README.md)	A tag manager and server-side conversion router. Define a conversion once; the browser pixel and the server both send it to GA4, Google Ads, Meta, TikTok, LinkedIn, Pinterest, Reddit, Snap or X with one event id, so each platform counts it once. Scan (it also finds the tools a site uses now), import a GTM container, validate, preview, test and publish	Google Tag Manager, server-side GTM
[Mail](mail/README.md)	Inboxes in one request. `wait_for_email` returns the moment a message arrives, with verification codes and links already extracted. Read, reply, send, custom domains, webhooks, and forwarding to the project's people (each email or a daily digest)	A Gmail account per project, AgentMail
[Replay](replay/README.md)	Session recordings masked in the browser by default. Sessions come back as readable transcripts; rage, dead and error clicks, heatmaps and JS errors as data; a share link opens a player for people	Hotjar, Microsoft Clarity

Quick start

Hosted (free)

Copy the prompt from agentfirststack.com into Claude Code, Cursor, Codex or any agent that can make HTTP requests. The agent follows the full setup in one run: it maps your site's pages, main actions and the tools it uses now, then asks you once where the inbox's email should go and whether to bring your old tools' setup and history over. It creates an inbox, sets up analytics (goals, AI crawler visits reported from your server, a weekly report for you, and the history of GA4, Plausible or whatever you used before), a tag container with an event for each main action (starting from your GTM container, if you have one), and replay; then it deploys, verifies each part as a visitor with test traffic (POST /v1/setup/test: a test email, test events through analytics, tags and each ad platform's test mode, then a browser test visit), runs the setup check (GET /v1/setup) until nothing is missing, writes what it did to AGENTFIRSTSTACK.md (and a short block to AGENTS.md, so later sessions with any agent pick up new features), and shows you a table of what's set up and what passed, with a claim link. Your old tools stay until the setup check says the numbers match and you agree to remove them. Pasting the same prompt again later starts from the setup check and fills the gaps.

Or do it by hand:

curl -X POST https://agentfirststack.com/v1/signup

{ "api_key": "afs_...", "mcp": { ... }, "next_steps": [ ... ] }

curl -X POST https://analytics.agentfirststack.com/v1/sites \ -H "Authorization: Bearer $AGENTFIRSTSTACK_API_KEY" -H 'content-type: application/json' \ -d '{"domain":"example.com"}'

Add one MCP server for every service (tools prefixed analytics_, tags_, mail_, replay_):

claude mcp add --transport http afs https://agentfirststack.com/mcp --header "Authorization: Bearer $AGENTFIRSTSTACK_API_KEY"

Or one per service:

claude mcp add --transport http afs-analytics https://analytics.agentfirststack.com/mcp --header "Authorization: Bearer $AGENTFIRSTSTACK_API_KEY"

claude mcp add --transport http afs-tags https://tags.agentfirststack.com/mcp --header "Authorization: Bearer $AGENTFIRSTSTACK_API_KEY" claude mcp add --transport http afs-mail https://mail.agentfirststack.com/mcp --header "Authorization: Bearer $AGENTFIRSTSTACK_API_KEY" claude mcp add --transport http afs-replay https://replay.agentfirststack.com/mcp --header "Authorization: Bearer $AGENTFIRSTSTACK_API_KEY"

The hosted version has fair-use limits, listed in the manual.

Self-hosted

Everything runs on Cloudflare Workers in your own account:

git clone https://github.com/StartGlobal-AI/agentfirststack && cd agentfirststack

pnpm install pnpm afs init mystack --domain example.com --account pnpm afs deploy mystack CLOUDFLARE_API_TOKEN=... pnpm afs email mystack # inbound + outbound mail pnpm afs check mystack

See docs/self-hosting.md for requirements, signup modes, limits and updates.

How it's built

TypeScript on Cloudflare Workers with Hono and zod. Storage:

D1: configuration and the shared identity database.
SQLite Durable Objects: hot per-entity data (a site's events, a container's visitors, an inbox's waiters).
R2: mail blobs and replay recording chunks.
Queues: retried delivery to ad platforms and webhooks.
Email Routing and Email Sending: mail in and out.

site/        landing page, manual, signup, MCP gateway, dashboard agentfirststack.com

analytics/ web analytics analytics.agentfirststack.com tags/ tag manager + conversion APIs tags.agentfirststack.com mail/ inboxes, sending, domains, webhooks mail.agentfirststack.com replay/ session replay, signals, heatmaps, share player replay.agentfirststack.com shared/ @afs/shared: auth, signup, errors, MCP handler scripts/ pnpm afs: the deployment tool deploy/ deployment profiles (yours; the agentfirststack.com one is kept private) docs/ architecture, self-hosting, operations, development

Development

pnpm install

pnpm typecheck && pnpm test # every package; integration tests run inside workerd cd mail && pnpm db:migrate:local && pnpm dev

docs/development.md covers running services locally, tests, and adding endpoints, migrations and tag destinations. docs/operations.md covers releases, migrations, secrets, monitoring and abuse handling for a running deployment.

Contributing

Issues and pull requests are welcome. Read CONTRIBUTING.md first; it's short. Report security issues privately as described in SECURITY.md.

License

The services are AGPL-3.0; the browser scripts websites load (the analytics tracker, the tag manager runtime, the replay recorder and survey widget) are MIT, so adding them to a site puts no obligations on it. Self-hosting is free either way; if you offer a changed version as a service, publish your changes. Details: LICENSING.md. Built and hosted by StartGlobal.

AgentFirstStack Tags

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Marketing & social mediai

Common questions

Alternatives

MCP YouTube Transcript

Google Analytics MCP

BibiGPT YouTube Video Summarizer

README from the maker

Services

Quick start

Hosted (free)

{ "api_key": "afs_...", "mcp": { ... }, "next_steps": [ ... ] }

Self-hosted

How it's built

Development

Contributing

License