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Documentation Index

Fetch the complete documentation index at: https://docs.linkup.so/llms.txt

Use this file to discover all available pages before exploring further.

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.
This is the developer documentation. Start with the quickstart, then read concepts to choose between fast, standard, deep, and /fetch.

Quickstart

Make your first call in five minutes.

Playground

Test Linkup in the browser.

Instructions for AI Agents

Direct usage instructions for AI agents for the full suite of Linkup APIs.

Tutorials

Worked examples for production use cases.
Query precision is the biggest lever on result quality. Read the Prompting guide or use the Prompt Optimizer.