> ## 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.

# Datadog (OAuth) - How do I link my account?

# Overview

To connect with Datadog OAuth, you need:

1. **Site Parameter** - The Datadog site your account lives on.
2. **Authorization Host** - The web application host for that same site. This is a separate value because Datadog's API host (`api.<site parameter>`) and its web application host don't follow the same pattern for every site.

This guide walks you through finding both values.

### Step 1: Finding your Datadog site

Match your Datadog URL (in your browser) to the corresponding site, then use the **Site parameter** and **Authorization host** columns to fill in the two fields in Nango:

| Site    | Site URL          | Site parameter      | Authorization host  |
| ------- | ----------------- | ------------------- | ------------------- |
| US1     | app.datadoghq.com | `datadoghq.com`     | `app.datadoghq.com` |
| US3     | us3.datadoghq.com | `us3.datadoghq.com` | `us3.datadoghq.com` |
| US5     | us5.datadoghq.com | `us5.datadoghq.com` | `us5.datadoghq.com` |
| EU1     | app.datadoghq.eu  | `datadoghq.eu`      | `app.datadoghq.eu`  |
| US1-FED | app.ddog-gov.com  | `ddog-gov.com`      | `app.ddog-gov.com`  |
| AP1     | ap1.datadoghq.com | `ap1.datadoghq.com` | `ap1.datadoghq.com` |

### Step 2: Enter your site parameter and authorization host in Nango

1. Open the Datadog (OAuth) connection form in Nango.
2. Select your **Site Parameter** and matching **Authorization Host** from the table above.
3. Submit the form, and you should be successfully authenticated.

<img src="https://mintcdn.com/nango/Q30yNVofB8ET7V8y/api-integrations/datadog-oauth/form.png?fit=max&auto=format&n=Q30yNVofB8ET7V8y&q=85&s=15daa821b5aa155b25bcf15ab3a2aefd" style={{maxWidth: "450px" }} width="501" height="698" data-path="api-integrations/datadog-oauth/form.png" />

You are now connected to Datadog (OAuth).