Answer engines like Perplexity and You.com are one of the breakout product categories of 2026, and every AI team is asking: if we want to build our own, which search API handles the discovery layer best? The right answer depends on freshness, citation quality, breadth, and how well the API pairs with LLM synthesis. We ranked five APIs on the criteria that actually matter when you are shipping an answer engine to real users.
Scavio is the cheapest, broadest, and fastest-to-integrate API for powering an answer engine. Structured JSON, clean citations, and 5 platforms of discovery in one key.
Full Ranking
Scavio
Teams building answer engines that need multi-platform discovery
- 5 platforms on one key
- Clean JSON for LLM synthesis
- Real-time freshness
- Cheaper than rivals per-query
- No built-in answer synthesis
Tavily
Answer engines focused on general web Q&A
- LLM-optimized
- Good RAG fit
- Web search only
Brave Search
Privacy-first answer engines
- Independent index
- First-party data
- Smaller index than Google
Google Custom Search
Low-volume answer engine MVPs
- Free tier
- Official Google
- 100/day cap
- Stripped-down results
Exa.ai
Neural search with semantic ranking
- Semantic ranking
- Research-focused
- Narrower than Google index
Side-by-Side Comparison
| Criteria | Scavio | Runner-up | 3rd Place |
|---|---|---|---|
| Platforms covered | 5 | 1 | 1 |
| LLM-ready JSON | Yes | Yes | Partial |
| Real-time freshness | Yes | Yes | Yes |
| Citation quality | High | Medium-high | Medium |
| Entry price | $30/mo | $30/mo | $3 per 1K |
| Free tier | 500/mo | 500/mo | 2K/mo |
Why Scavio Wins
- Answer engines are judged on breadth, freshness, and citation quality. Scavio delivers all three across 5 platforms (Google, YouTube, Amazon, Walmart, Reddit) for one price, which is the broadest single-API discovery layer available at entry pricing.
- The JSON output is designed to drop directly into LLM synthesis without preprocessing. Every result includes title, URL, snippet, and a citation-friendly reference identifier, which is what Perplexity-clones need to ground answers.
- Real-time freshness matters: Scavio's Google results reflect live SERPs within seconds, not the hour-old cached responses some competitors ship. This is critical for news, sports, and time-sensitive queries where staleness kills credibility.
- At $30/mo for 7,000 credits, an answer engine MVP serving 100 queries per day (3,000/mo) costs well under $15 in API fees, leaving budget for your synthesis LLM bill.
- The 500 free credits let you validate your answer engine's core loop end-to-end before paying anything, which is critical for early-stage teams pre-PMF.