Perplexity Search API

Search infrastructure exposed from the team behind the Perplexity answer engine.

What it does

Perplexity Search API sits in the category of search APIs: a hosted service that takes a query and returns structured, machine-readable search results instead of leaving you to render and scrape a results page yourself. For an application or an AI agent, that structure — clean JSON fields instead of raw HTML — is the entire value proposition.

Strengths

• Retrieval tuned by a company whose core product depends on high-precision grounding
• Can be paired with Perplexity's own answer/citation endpoints for a full grounded-QA stack

Best-fit use cases

Teams that want search and answer-synthesis from a single vendor rather than stitching search and summarization APIs together.

Pricing shape

Usage-metered pricing per request, with separate meters for raw search versus combined answer generation. As with any usage-billed API, the right plan depends on your query volume and how often your application — or an autonomous agent calling it in a loop — actually needs a fresh search rather than a cached one.

Where it fits in an agent stack

When you're wiring a "web_search" tool into an LLM agent's function-calling schema, the provider you choose determines both the shape of the JSON your parsing code needs to handle and the latency budget for each turn of the agent loop. Perplexity Search API is one of several reasonable defaults — see our comparison framework for how to weigh it against alternatives.