Linkup
/linkup
Linkup is a production-grade web search API built to ground language models in accurate, real-time information. It returns ranked sources with full snippets, and can deliver them as a cited natural-language answer or as structured JSON matching your own schema — with selectable depths from sub-second lookups to deep, LLM-planned retrieval. Accuracy is its real differentiator: Linkup leads the SimpleQA factuality benchmark ahead of well-known competitors, and backs it with sub-second latency and SLA-grade uptime.
Call Linkup through the gateway
Same paths, parameters and responses as Linkup's native API — auxiliar injects the upstream key server-side and debits the provider's metered cost from your credits.
curl https://api.auxiliar.ai/linkup/<native-path> \ -H "Authorization: Bearer $AUXILIAR_API_KEY"
Exact endpoints and parameters: docs.auxiliar.ai/linkup. An empty balance returns HTTP 402 — no silent degradation; see how billing behaves.
Choose if
You want a compliant SERP alternative with a built-in sourced answer and structured JSON.
Avoid if
You need a relevance score, per-result date or geo controls (none exposed).
Evals
How Linkup performed on the curator-fleet web-access evals — the real measured numbers behind each composite, ranked best-first. Every provider runs the identical task corpus; each scorecard carries its run date. Latest run: 2026-06-21.