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

# Mezmo - How do I link my account?

## Overview

To authenticate with Mezmo, you need:

1. **API Key** — a Mezmo service account key, personal access key, or enterprise service account key.

This guide will show you how to get it.

### Prerequisites

* A Mezmo account with permission to create service accounts. Mezmo recommends reserving this permission for account administrators.

### Step 1: Create a service account key

1. Sign in to the [Mezmo web app](https://app.mezmo.com/account/signin).
2. Go to **Settings** > **Organization** > **API Keys**, then under **Service Accounts** click **Create Service Account**.

![Manage API Keys page in Mezmo with the Create Service Account button](https://mintcdn.com/nango/SWIW_4uWotjTEEJK/api-integrations/mezmo/api_keys_page.png?fit=max\&auto=format\&n=SWIW_4uWotjTEEJK\&q=85\&s=b3cea2297b9a900983b8b545a1551f41)

3. Enter a **Service Account Name** (3 to 50 characters) and select a parent role that grants the access your integration needs, for example **Readonly**. Nango checks the key by listing your pipelines or accounts, so the key needs read access to one of them. Click **Create**.

![Create Service Account dialog in Mezmo with the name field and the Readonly parent role selected](https://mintcdn.com/nango/SWIW_4uWotjTEEJK/api-integrations/mezmo/create_service_account_dialog.png?fit=max\&auto=format\&n=SWIW_4uWotjTEEJK\&q=85\&s=8c1ef24a7ffac433ddc38518f3d4e093)

4. Click **Copy** to copy the key, which starts with `sts_`. Mezmo shows it only once.

![New Service Account Key dialog in Mezmo with the Copy button](https://mintcdn.com/nango/SWIW_4uWotjTEEJK/api-integrations/mezmo/service_account_key_created.png?fit=max\&auto=format\&n=SWIW_4uWotjTEEJK\&q=85\&s=f95f82d04f504dc093bae8f02f63967e)

To use a personal access key instead, open your profile menu, go to **User preferences** > **Access Tokens** and click **Generate**. Personal access keys start with `sta_` and cannot exceed the access of the user they belong to.

![Access Tokens tab in Mezmo user preferences with the Generate button](https://mintcdn.com/nango/SWIW_4uWotjTEEJK/api-integrations/mezmo/personal_access_tokens_tab.png?fit=max\&auto=format\&n=SWIW_4uWotjTEEJK\&q=85\&s=f957d63de6b2aa615ad35620cdecb609)

Enterprise service account keys start with `ste_` and are only available through Mezmo's enterprise dashboard. They work the same way.

### Step 2: Enter your API key in the Connect UI

1. Open the form where you need to authenticate with Mezmo.
2. Enter your **API Key** in the designated field.
3. Submit the form, and you should be successfully authenticated.

![Mezmo connection form in the Nango Connect UI with the API Key field](https://mintcdn.com/nango/SWIW_4uWotjTEEJK/api-integrations/mezmo/form.png?fit=max\&auto=format\&n=SWIW_4uWotjTEEJK\&q=85\&s=1aecefdbffd50a419326715b583e3c1e)

You are now connected to Mezmo.


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