> ## Documentation Index
> Fetch the complete documentation index at: https://docs.notifique.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Add-ons

> Extra Notifique features beyond send channels: lead capture, click tracking, and contact validation.

<Tip>
  **Channels** send messages. **Add-ons** extend the platform with lead capture, click tracking, and **list hygiene** — all in the same workspace, dashboard, and API Key.
</Tip>

## What are Add-ons?

Optional products you activate in the workspace to go beyond “send and receive” on channels. Each add-on has its own docs under the **Add-ons** tab in the sidebar.

Think of channels as **the mail carrier**; add-ons are **the signup box at the front desk**, **who opened the invite counter**, and **the filter that catches bad addresses or numbers**.

## Why they exist

Many journeys start **before** or **after** the message:

* **Before** — validate email or phone, capture leads or surveys
* **After** — see who clicked and who converted

Keeping this on the same platform avoids gluing tools together and keeps contacts, webhooks, and API Keys in one workspace.

## Available add-ons

<CardGroup cols={2}>
  <Card title="Forms" icon="clipboard-list" href="/en/marketing-addons-api/como-funciona/introducao">
    Build waitlist, newsletter, contact, or survey forms — hosted page, embed on your site, or API submission. Capture leads without building form backends.
  </Card>

  <Card title="Short links" icon="link" href="/en/short-links-api/como-funciona/introducao">
    Shorten campaign URLs and see who clicked, when, and from where. Tie clicks to conversions (purchased, signed up) to measure what worked.
  </Card>

  <Card title="Email validation" icon="envelope" href="/en/validations-api/como-funciona/introducao">
    Check whether an email exists and can receive mail **before** you send campaigns or transactional messages — fewer bounces and cleaner lists.
  </Card>

  <Card title="Phone validation" icon="phone" href="/en/validations-api/como-funciona/introducao-telefone">
    Check whether a number is valid and, in full mode, whether it **has WhatsApp** — clean CRM and imports before SMS, voice, or WhatsApp.
  </Card>

  <Card title="CPF lookup" icon="id-card" href="/en/validations-api/como-funciona/introducao-cpf">
    Validate CPF with birth date — quick mode (format) or full mode (official government database via partnership) — before granting benefits or credit.
  </Card>
</CardGroup>

OAuth, webhooks, logs, and workspaces: see the **Guides** tab.

## How to start

1. Activate the add-on in the **dashboard** (Add-ons) or integrate via **API**
2. Read the add-on **Introduction** (links above)
3. Follow the **Quick Start** for a copy-paste first flow
4. Open **OpenAPI reference** in the sidebar when you need technical detail

<Info>
  **Phone numbers** to call and send SMS live under the **Voice** tab. **Phone validation** here only checks **customer** numbers in your database — not contracting a line.
</Info>