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Learn how to build with Linkup by pasting this prompt to your agent:
Linkup is the production-grade web search API for AI. Teams at Legora, Polymarket, Cohere, McKinsey, and SNCF ship production AI on Linkup because four things have to be true:
  • Accuracy. Search ranks #1 among sub-second web search APIs on Verified SimpleQA with a 92% F-score. Research ranks #1 across the board on SealQA-0 with 61% accuracy. The evaluation harness is open source.
  • Customization. The index adapts to your domain. Define which sources to trust, which domains to prefer, which proprietary data to blend in.
  • Security. SOC 2 Type II, Zero Data Retention, GDPR, and Single Sign-On on every tier. Bring Your Own Cloud is available for the highest data sovereignty requirements: the full Linkup index runs inside your VPC and queries never leave your environment.
  • Latency. Sub-second on standard search. Fast enough for voice AI, sales copilots, and live research tools.

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Our endpoints

Linkup exposes five endpoints. Each has a distinct shape and is tuned for a different point on the latency/quality curve.
Research is currently in beta. Extract is in closed beta and access is granted by request. Behavior and parameters may change.

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Where to next

Quickstart

Make your first call in five minutes.

For AI agents

Tool definitions and integration prompts for coding agents.

Playground

Test Linkup in the browser.

API reference

Full parameter spec for every endpoint.
Query precision is the biggest lever on result quality. Read the Search best practices page or use the Prompt Optimizer.