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Linkup
85AI-native web search API that returns sourced answers, raw results, or structured JSON — built for LLM agents with standard and deep (agentic) search modes.
API KeyFreemiumJSONBot Blocking: NoneNo CCsearchllm-optimizedstructured-outputsourced-answersmcp-serverreal-time
Pros
- + Three output modes (searchResults, sourcedAnswer, structured) let agents pick the right format without post-processing
- + Deep search uses agentic chain-of-thought for complex multi-step queries — top scores on SimpleQA factuality benchmark
- + Native integrations with LangChain, CrewAI, Vercel AI SDK, and MCP server for plug-and-play agent tooling
Cons
- - Deep searches are significantly more expensive (€50/1k vs €5/1k standard) and slower due to agentic workflow
- - Single unified endpoint — no separate crawl/sitemap/batch endpoints like some competitors
Integration
example.py
from linkup import LinkupClient
client = LinkupClient(api_key="YOUR_API_KEY")result = client.search( query="latest AI news", depth="standard", output_type="sourcedAnswer")print(result)Details
- Category
- Web Search
- Pricing
- Freemium
- Free Tier
- €5/month credits (~1,000 standard or ~100 deep searches), no credit card required
- Rate Limit
- 10 req/sec per organization
- Verified
- 2026-03-31
Score Breakdown
Base +50
OpenAPI Spec (No) 0
Auth Complexity (API Key) +10
Response Format (JSON) +10
Bot Blocking (None) +10
No Credit Card (Yes) +5
Completely Free (No) 0
Total 85
