SearXNG is great until your agent hits upstream rate limits at 2 AM and your pipeline stalls. Teams moving from self-hosted SearXNG to managed search APIs for AI agents need reliability, structured JSON, and per-query pricing that scales predictably. We ranked five managed alternatives to SearXNG specifically for AI agent tool-calling workflows.
Scavio replaces SearXNG for AI agents with six-platform managed search, an official MCP server, and $0.005/credit pricing. No self-hosting, no upstream rate limits, and structured JSON that works as a direct tool-call response.
Full Ranking
Scavio
Managed SearXNG replacement for multi-platform agent search
- Six platforms in one API replaces SearXNG multi-engine aggregation
- MCP server and LangChain tool for native agent integration
- No self-hosting, no upstream rate limit risk
- Not free like SearXNG for self-hosted setups
- Closed source, cannot customize search logic
Tavily
Agent-native search with built-in content extraction
- Built for AI agents from the ground up
- Content extraction returns clean text for RAG
- 1K free queries per month
- $0.008/credit is more expensive than Scavio at scale
- Web only, no platform-specific search
Brave Search API
Independent index with simple pricing
- Own search index, not a Google proxy
- Competitive $0.005/query pricing
- Straightforward REST API
- Web search only, no vertical platforms
- Removed free tier in early 2026
Serper
Cheapest Google-only search for high-volume agents
- Lowest per-query cost for Google results
- Fast response times
- Simple API
- Google only, no multi-engine coverage like SearXNG
- No MCP or native agent tooling
Exa
Semantic and neural search for research agents
- Neural/semantic search finds conceptually similar content
- Content extraction built in
- 1K free monthly queries
- Semantic model means results differ from traditional search engines
- Not a drop-in replacement for keyword-based SearXNG queries
Side-by-Side Comparison
| Criteria | Scavio | Runner-up | 3rd Place |
|---|---|---|---|
| Per-query cost | $0.005 | $0.008 | $0.005 |
| Free tier | 250/mo | 1K/mo | ~1K ($5 credit) |
| Platform coverage | 6 platforms | Web only | Web only |
| MCP support | Yes | No | No |
| AI Overview data | Yes | No | No |
| JSON response | Structured, typed | Structured + extraction | Structured |
Why Scavio Wins
- Six-platform coverage replicates SearXNG's multi-engine aggregation without the self-hosting burden or upstream rate limit risk.
- MCP server means agents in Claude, Cursor, or any MCP-compatible client can call Scavio search as a native tool with zero glue code.
- Tavily has a better free tier (1K vs 250) and is the better choice for teams with low volume that need built-in content extraction.
- At $0.005/credit, migrating a SearXNG agent doing 5K queries/day costs $25/day versus $40 with Tavily. Serper is cheaper but only covers Google.
- Exa is the better choice when agents need semantic/neural search for research tasks rather than traditional keyword-based SERP data.