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Overview

To authenticate with Parseur, you need:
  1. API Key — an API key of your Parseur account.
This guide will show you how to create one.

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Prerequisites

  • A Parseur account. API access is available on the Free plan. If you don’t have an account, sign up.

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Step 1: Create an API key

  1. Log in to Parseur.
  2. Click Account in the left sidebar, then API keys (direct link).
Parseur Account section with API keys selected in the sidebar
  1. Click Create new API key.
  2. Enter a Key name, for example Nango integration.
  3. Optionally set Expiration in months. Leave it empty for a key that never expires. The expiration cannot be changed later.
  4. Under Access scope, keep All mailboxes selected, or pick Only selected mailboxes to create a restricted key (Pro plan and higher).
  5. Click Create.
Parseur Create a new API key dialog with Key name, Expiration in months and Access scope fields
  1. In the Save your key dialog, click Copy. The secret key is shown only once.
Parseur Save your key dialog with the Copy button next to the secret key
Accounts created before August 18, 2025 also have a Legacy API key on the API keys page. It works too, but Parseur recommends creating a new key.

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Step 2: Enter your API key in the Connect UI

  1. Open the form where you need to authenticate with Parseur.
  2. Enter your API Key in the designated field.
  3. Submit the form, and you should be successfully authenticated.
Parseur Connect UI form with the API Key field You are now connected to Parseur.