> ## Documentation Index > Fetch the complete documentation index at: https://docs.stackone.com/llms.txt > Use this file to discover all available pages before exploring further. # Connect Perplexity with API Key – StackOne Hub > Link a Perplexity account in the StackOne Hub using API Key. End-user guide to authorize the integration and start using Perplexity actions. The Perplexity API is prepaid and billed separately from any Perplexity subscription, so you must add API credits before your key can make billed calls. Your key is shown only once when you create it, so copy it right away — you cannot view it again later.

Add API credits

The Perplexity API draws from a prepaid API credit balance that is separate from any Perplexity subscription. Add a payment method and load credits before creating a key.

Sign in to the Perplexity API Console.

  • In the left sidebar under Group, click Billing.

On the Billing page, the API credit balance shows your remaining balance. Add a payment method, then load credits.

  • Click Add payment method and enter your card details.
  • Click Buy more credits and choose an amount to load (there is no minimum; a small amount is enough to start).
Perplexity API Console Billing page showing the API credit balance and the Add payment method button

Create your API key

Generate an API key in the API Console and copy its value.

In the left sidebar under Group, click API keys.

Left sidebar of the Perplexity API Console with the API keys tab highlighted

On the API keys page, click + Generate API Key.

Perplexity API keys page with the Generate API Key button highlighted

In the Create API Key dialog, type a name in the Key name field, then click Create Key.

Create API Key dialog with a key name entered and the Create Key button highlighted

On the Save your API key screen, click Copy key to copy the value (it starts with `pplx-`), then click I've saved it. Paste the key into the API Key field in StackOne Hub.

  • The full key is shown only once and cannot be retrieved later — copy it now.
Save your API key screen with the one-time warning, the masked key, and the Copy key button highlighted

Linking the Account from the Hub

Use one of the three Linking Account Methods to access the Hub. Fill out the following fields using details from your provider:
  • API Key
  • Click Connect
  • If applicable, the provider will redirect you to a sign-in or authorization page. Complete the provider's authorization flow.
  • Once authorization is successful, you will see a confirmation popup

If the account linking is successful, you will see the newly linked account in your Accounts page.