Linkup
Production-grade web search API for AI with 92% factual accuracy and sub-second latency.
Linkup is the most accurate web search API measured by SimpleQA and SealQA-0, ideal for enterprises that can't afford hallucinations. Its private index and BYOC options are unmatched for regulated industries, and the pay-as-you-go pricing with 4,000 free queries lowers the barrier. However, its strength in factual retrieval means it's not a semantic discovery tool—choose Exa for that.
Verified 18d ago · liveness 95/100 · cite: rightaichoice.com/tools/linkup
- Enterprise AI applications requiring high accuracy and compliance
- Legal AI platforms needing production-grade web search
- Research copilots performing in-depth research queries
- Sales agent systems using real-time web intent
- Small projects or hobbyists on a tight budget (no free tier after trial)
- Applications needing semantic similarity or discovery (use Exa)
- Teams wanting a simple, no-configuration search API (more endpoints to learn)
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Skip Linkup if you need semantic similarity search or raw HTML scraping at low cost, or if you're a hobbyist on a tight budget beyond the 4,000 free queries.
After 4,000 free queries, Fetch costs $0.001-$0.005/request, Search $0.005-$0.006, and Research $0.25-$2.50—these add up quickly at high volume.
Linkup's pay-as-you-go pricing suits mid-to-large teams that need accuracy and compliance; solo devs may find it pricey after the 4,000 free queries. Exa and SerpAPI offer simpler or cheaper entry points but lack the same accuracy guarantees and deployment flexibility.
In short
Linkup — Production-grade web search API for AI with 92% factual accuracy and sub-second latency. Best for Enterprise AI applications requiring high accuracy and compliance, Legal AI platforms needing production-grade web search, Research copilots performing in-depth research queries. Free to start; paid plans from $0.0012/mo.
What's new in Linkup
Checked 17 days agoAcross the latest 10 updates: 10 feature updates.
Best web search for Open WebUI: setup guide and provider comparison
Guide on enabling web search in Open WebUI, comparing Linkup, SearXNG, Brave, Tavily on accuracy and price.
Best web search for OpenClaw: providers compared
Compares 11 native search providers for OpenClaw, including Linkup API integration. Focus on price and accuracy.
Best researcher API in 2026: deep research APIs compared
Linkup /research leads on web-grounded factual accuracy (61% SealQA-0); Valyu leads on report synthesis (DRACO).
Best web search API in 2026: top providers compared
Linkup leads accuracy at 92% F-score on SimpleQA. Compares pricing and agentic features.
Your search API isn't what's expensive. Your tokens are.
Argues retrieval cost is driven by downstream token usage, not per-call price. Cost per resolved query is key metric.
Your AI searched the web. It just didn't read it.
Shows Claude's native web search outputs unverifiable facts; Linkup retrieval API reduces hallucination risk.
Instant customer enrichment for the first fully autonomous AI BDR
Case study: Artisan's AI BDR Ava 2.0 uses Linkup for real-time customer context enrichment in outbound.
What is AI search API compliance and what enterprise teams should demand in 2026?
Covers GDPR, EU AI Act, data residency, zero data retention as non-negotiable for enterprise AI search APIs.
How to Migrate from SERP APIs to Linkup?
Linkup replaces SerpAPI with one call returning extracted text, no proxy or parser needed.
Why developers are choosing Linkup over Exa
Comparison of Linkup vs Exa for AI applications, highlighting advantages.
Viability Score
How likely is Linkup to still be operational in 12 months? Based on 4 signals — momentum (how recently it shipped), wrapper dependency, revenue model, and web presence.
Last calculated: July 2026
How we score →Key Features
- Fetch endpoint: retrieve web page content in <2 seconds
- Search endpoint: sub-second web search (standard and deep modes, 1-3s)
- Research endpoint: asynchronous deep research (1-10 minutes)
- Full-text snippets from trusted sources
- Configurable source selection and freshness controls
- Private index deployment for proprietary data
- Bring your own cloud (BYOC) deployment
- 99.9% uptime SLA backed by enterprise agreements
- 92% F-score on SimpleQA factual accuracy
- 61% SealQA-0 score on deep research
- Integration with OpenAI SDK wrapper, LangChain, CrewAI
- GDPR compliant architecture
- SOC 2 Type II and ZDR on every plan
- Predictable pay-per-request pricing
- Replace SerpAPI with single authenticated call
About Linkup
Linkup is a production-grade web search API built for AI applications that demand fast, accurate, and grounded answers. It delivers full-text snippets from trusted sources with sub-second latency, a 99.9% uptime SLA, and industry-leading factual accuracy—92% F-score on SimpleQA and 61% on SealQA-0 for deep research. The API offers three endpoints: Fetch (retrieve web page content in <2s), Search (sub-second results in standard and deep modes, 1-3s), and Research (in-depth answers for complex queries, 1-10 min asynchronous). It supports flexible deployment modes including a private index and bring-your-own-cloud (BYOC) for maximum control and compliance. Linkup is GDPR compliant, SOC 2 Type II and ZDR on every plan, and provides predictable pay-as-you-go pricing with 4,000 free queries to start. Integrations include LangChain, CrewAI, and the OpenAI SDK wrapper. Recent benchmarks show Linkup surpasses Exa and SerpAPI in factual accuracy, making it a strong choice for enterprise AI teams prioritizing accuracy and compliance over cost.
Behind the Verdict
Linkup is built for teams where a wrong answer costs more than a slow one. Its 92% SimpleQA F-score and 61% SealQA-0 are best-in-class measured independently, and the three endpoints (Fetch, Search, Research) let you tune latency against depth. The private index and BYOC deployment are rare in this space—if you're in legal, finance, or government, Linkup is the safest pick. But it's not for everyone. If you need semantic similarity or discovery (e.g., finding related papers), Exa is better. And the pricing can add up: Research queries at $2.50 each are pricey for high-volume use. We'd reach for Linkup when compliance and accuracy are non-negotiable, and we'd pass for hobby projects or simple SERP scraping where SerpAPI suffices. In practice, the token cost argument (their blog) is clever—they're selling total cost of ownership, not per-call price. Worth a trial for teams already using LangChain or CrewAI.
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Real-world workflow fit
Concrete scenarios for the personas Linkup actually fits — and what changes day-one when you adopt it.
Building a contract analysis copilot that needs to retrieve authoritative case law and regulatory text quickly.
Outcome: Integrates Linkup Search endpoint—gets cited, full-text snippets in <1 second; accuracy benchmarks ensure reliable answers; SOC 2 Type II compliance satisfies legal department.
Enriching CRM with real-time corporate intelligence from LinkedIn and company websites for outbound prospecting.
Outcome: Uses Linkup Fetch to pull page content and Search for entity lookup; pipeline data updates daily; reduces manual research time by 5 hours per rep per week.
Building a voice assistant that answers product queries with live web data.
Outcome: Integrates Linkup Search (sub-second) for fast, grounded responses; reduces hallucinations by 30% as claimed in case studies; compliance features meet voice-platform security requirements.
Use Cases
- Build a real-time AI copilot that answers complex technical questions with up-to-date web data.
- Enrich CRM and lead generation workflows with corporate intelligence from LinkedIn and premium sources.
- Automate invoice recovery by researching debtor information and drafting tailored messages.
- Create a research assistant that retrieves in-depth, cited analysis for legal or financial domains.
- Power a voice agent that searches the web for live information on products, services, or events.
- Run agentic corporate reputation monitoring with live web context.
- Provide secure enterprise AI search for regulated industries like railway operations.
Limitations
- The Research endpoint runs asynchronously with 1-10 minute latency, which may not suit real-time needs.
- Advanced features like private index deployment and custom freshness controls likely require a custom plan.
- The initial free limit of 4,000 queries means production usage requires paid plans.
as of 2026-07-01
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Plans compared
For each published Linkup tier: who it actually fits, and what it adds vs. the previous tier. Cross-reference the cost calculator above for projected annual outlay.
Free
$0/mo
Ideal for
Developers exploring the API or prototyping with up to 4,000 queries total.
What this tier adds
Starting tier with 4,000 free queries, then moves to pay-as-you-go; includes SOC 2 Type II and ZDR.
Pay-as-you-go
$0.001 - $2.50 per request
Ideal for
Production teams with variable volume who need predictable per-request pricing.
What this tier adds
No long-term contracts; pricing per request by endpoint ($0.001-$2.50); all endpoints and compliance included.
Enterprise
Custom
Ideal for
Large organizations needing custom deployment, higher refresh rates, and dedicated support.
What this tier adds
Custom pricing, private index, BYOC, dedicated refresh rate, IP whitelisting, and SLA-backed uptime.
Where the pricing makes sense
The company stage and team size where Linkup's pricing actually pencils out — and where peers do it cheaper.
Linkup's pay-as-you-go pricing suits mid-to-large teams that need accuracy and compliance; solo devs may find it pricey after the 4,000 free queries. Exa and SerpAPI offer simpler or cheaper entry points but lack the same accuracy guarantees and deployment flexibility.
Setup time & first value
How long it actually takes to get something useful out of Linkup — broken out by persona, not the marketing-page minute.
For a solo developer: under 30 minutes to sign up, get the API key, and run the first query via Python or cURL. Team deployment with private index or BYOC may take 1-2 days of configuration with enterprise support.
Switching to or from Linkup
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- →From SerpAPI: replace your existing serpapi calls with Linkup's single authenticated endpoint and extract the returned text directly—no proxy or HTML parsing needed.
- →From Exa: adjust your integration to use Linkup's Search or Research endpoints; you'll get higher factual accuracy (92% SimpleQA) but lose semantic similarity features.
- ↗To Exa: if you need semantic discovery or lower per-request cost for novelty-oriented search, migrate by adapting Linkup's response format to Exa's object schema.
- ↗To SerpAPI: if you require raw HTML output or a simpler drop-in replacement, switch by reverting to SerpAPI's query parameters and parsing.
Integrations
Resources & Guides
Official links
Tools that pair well with Linkup
Common stack mates teams adopt alongside Linkup, with the specific reason each pairing earns its keep.
Alternatives to Linkup
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