Search the web

Perplexity Search API

Web search API that returns ranked results as JSON with query-relevant page text, without a generated answer.

Rate limits

Search API: 50 query units per second, 50 burst, same for every usage tier; each query in a multi-query request is one unit5
Usage tiers: Tier 0 (0 USD) to Tier 5 (5,000 USD all-time credit purchases); tiers do not change Search API limits5

Other limits

Queries per request: Up to 52
Extracted text: max_tokens and max_tokens_per_page: 1 to 1,000,000 tokens each2
Domain and language filters: Up to 20 domains and up to 20 ISO 639-1 language codes per request2
Out of credits: API keys are blocked until credits are added7

Read from Perplexity AI’s own pages on 2026-11-04. Every number links to the page a value came from. For agents, the same facts as markdown: /tools/search-the-web/perplexity.md