Linkup

API

Web search API for AI with sourced answers and structured output

Price: Free monthly credits, then pay per use
Access: API key

Docs
OpenAPI
llms.txt

About

Web search API for AI apps that returns search results, a sourced answer or JSON in your own schema. It also fetches single URLs and runs async research tasks. A standard search costs $0.005 and a deep search ten times that.

What you can do with it

Ground LLM answers with live web search results
Fetch any URL or PDF as clean markdown or typed JSON
Run async research that returns a cited report

Get started

Create an API key in the Linkup dashboard
Send it as a Bearer token

Example

curl "https://api.linkup.so/v1/search" \
  -G \
  -H "Authorization: Bearer $LINKUP_API_KEY" \
  --data-urlencode "q=What is Microsoft's 2024 revenue?" \
  --data-urlencode "depth=deep" \
  --data-urlencode "outputType=sourcedAnswer"

Details

Hosting: Hosted service
Available in: Worldwide
Official SDKs: Python, JavaScript/TypeScript
MCP server: Remote