Does this require Perplexity Pro?

Yes, API access requires a Perplexity Pro subscription.

platform: 'sonar' title: 'Perplexity Sonar API' quickStart:

'Create a Perplexity Pro account'
'Generate an API Key in settings'
'Paste the key into Unimatrix' faq:
q: 'Does this require Perplexity Pro?' a: 'Yes, API access requires a Perplexity Pro subscription.' config: | Go to Perplexity settings, generate an API key, and configure it here to use Sonar-based search models natively.

Perplexity Sonar API Setup

Welcome to the Perplexity Sonar API setup guide.