Search & research AI tools

P

Perplexity AI

Free

Search & research

AI-powered search engine that answers questions with cited, up-to-date sources.

K

Kagi

Search & research

Ad-free, privacy-preserving search engine with AI summaries and user-controlled result ranking

Free up to 150 searches · plans start at low monthly rate

F

Firecrawl

Free

Search & research

The web data API to search and scrape with access to more sources through Alexandria.

Free: $0/mo (1,000 credits); Hobby: $16/mo billed annually or $19/mo monthly (5,000 credits); Standard: $83/mo billed annually (100,000 credits); Growth: $333/mo billed annually (500,000 credits); Scale: $599/mo billed annually (1,000,000 credits); Enterprise: custom pricing.

i

iAsk AI

Free

Search & research

Ask AI Questions – Receive Instant Answers, No Hallucinations, Authoritative Citations

Free tier at $0/month with limited ads and core features; Pro tier at $9.95/month with ad-free experience, 300 daily Pro searches, AI Video Tutor, Document Analyzer, and more. Students can get iAsk Pro free for a year with a .edu email.

L

Liner

Free

Search & research

Accurate AI agents built for smarter work

Free plan at $0; Pro at $14.99/month (billed annually, $17.99 monthly); Max at $29.99/month (billed annually, $35.99 monthly); Team at $26.99/seat/month; Enterprise custom pricing. One plan applies across Liner, Liner Scholar, and Liner Write.

T

Tavily

Free

Search & research

One secure API for real-time web access

Free tier: 1,000 API credits/month, no credit card required. Pay As You Go: $0.008/credit. Project plan: starts at a monthly fee with 4,000 API credits/month. Enterprise: custom pricing.