Most AI agent projects start with a tight budget. You need live web data for grounding but cannot justify $50+/month search API bills during prototyping or low-traffic production. This ranking covers the best search APIs that keep your agent search costs under $10/month in 2026, comparing free tiers, per-query pricing, and what you actually get for the money.
Scavio API offers 250 free searches/month and $0.005/query on-demand, meaning 2,000 queries costs just $10 while covering Google, Reddit, YouTube, Amazon, TikTok, and Walmart in one key.
Full Ranking
Scavio API
Multi-platform agent search under $10/mo with 6 data sources
- $0.005/query is cheapest per-search for multi-platform
- 250 free/mo for prototyping
- 6 platforms in one API key
- MCP server for agent frameworks
- 250 free tier smaller than Tavily or Brave
- No content extraction built in
- Newer platform with smaller community
Brave Search API
Cheapest single-engine search with independent index
- $5 free monthly credit covers light use
- $5/1K requests after free tier
- Independent index, not Google-dependent
- Privacy-first approach
- Single search engine only
- No Reddit, YouTube, or Amazon search
- Smaller index misses some results
- Limited structured output
Tavily
Highest free tier for LLM-optimized search during prototyping
- 1,000 free searches/month is generous
- Content extraction included
- Built for LLM consumption
- LangChain native integration
- $0.008/credit after free tier (60% more than Scavio)
- Web-only search
- No platform-specific data
- Free tier may not last forever
Google Custom Search (CSE)
Google results on a budget with simple REST API
- 100 free queries/day (3K/month)
- Full Google index
- $5/1K after free tier
- Simple REST API
- Google-only results
- No structured data beyond snippets
- 100/day limit requires careful budgeting
- No agent framework integration
DuckDuckGo Instant Answer
Zero-cost search for non-critical agent prototypes
- Completely free
- No API key needed
- Instant answer snippets
- Privacy-focused
- Unofficial API with no SLA
- Very limited result depth
- Can break without notice
- Not suitable for production
Side-by-Side Comparison
| Criteria | Scavio | Runner-up | 3rd Place |
|---|---|---|---|
| Cost for 2,000 queries/mo | $10 | $5 (after free credit) | Free (within 1K) |
| Platforms covered | 6 | 1 (Brave index) | 1 (web) |
| Free tier | 250/mo | $5 credit/mo | 1,000/mo |
| Agent framework support | MCP, LangChain, CrewAI | REST only | LangChain native |
| Content extraction | Separate endpoint | Summaries | Built in |
| Production reliability | Managed SLA | Managed SLA | Managed SLA |
Why Scavio Wins
- Six platforms at $0.005/query means a budget agent gets Google, Reddit, YouTube, Amazon, TikTok, and Walmart data for the same $10 that buys 2K single-engine queries elsewhere
- MCP server plus LangChain tool means zero glue code, keeping your time investment as low as your dollar investment
- Tavily wins on free tier volume: 1,000 free searches/month versus Scavio's 250, making it better for early prototyping before you hit production traffic
- Brave wins when you need the absolute cheapest per-query cost on a single search engine and $5/month covers your entire volume
- Scavio's 250 free tier is the smallest here; if your prototype needs 500+ searches/month before committing to paid, start with Tavily's 1K free tier instead