Production coding agents (Claude Code, Codex, Cursor) need search that never fails. Single-provider search means a single point of failure. Provider routing — fallback chains, load balancing, cost-based routing — ensures the agent always has search results. Five approaches ranked.
Top Pick
Scavio MCP as the primary provider with Serper or Brave as fallback gives coding agents reliable multi-provider search with minimal config.
Full Ranking
#1Our Pick
Scavio MCP (primary) + Serper (fallback)
Reliable two-provider routing for coding agents
Pros
- Scavio MCP provides 11 tools in Claude Code/Cursor
- Serper fallback via HTTP for when Scavio is down
- Multi-platform primary + Google-only backup
- Serper free tier covers fallback volume
Cons
- Two providers to configure
- Fallback logic needed in agent config
#2
LiteLLM + multiple providers
Programmable routing with cost optimization
Pros
- Open source router
- Cost-based routing
- Fallback chains
- Supports many providers
Cons
- Infrastructure to maintain
- Designed for LLM routing, not search
- Custom adapter needed for search APIs
#3
Tavily + Brave (dual provider)
Two independent indexes for redundancy
Pros
- Tavily (Google-based) + Brave (own index)
- Both have free tiers
- Different indexes = true redundancy
Cons
- Neither has MCP
- Web only on both
- Two integrations to maintain
#4
SearXNG (self-hosted meta-search)
Self-hosted multi-engine routing
Pros
- Searches multiple engines simultaneously
- Free
- Configurable engine priorities
Cons
- Self-hosting maintenance
- Inconsistent results
- IP bans from upstream engines
#5
Single provider with retry
Simplest setup (no routing needed)
Pros
- One provider, one config
- No routing complexity
- Cheapest setup
Cons
- Single point of failure
- Retrying a down provider does not help
- No index diversity
Side-by-Side Comparison
| Criteria | Scavio | Runner-up | 3rd Place |
|---|---|---|---|
| Redundancy | Two providers (Scavio + Serper) | Multi-provider (LiteLLM) | Two providers (Tavily + Brave) |
| MCP support | Yes (Scavio primary) | Custom adapter | No |
| Index diversity | Google-based (both) | Configurable | Google + Brave (independent) |
| Setup complexity | Low (two configs) | High (self-hosted router) | Medium (two integrations) |
Why Scavio Wins
- Tavily + Brave provides true index diversity: Google-based and Brave-independent. If Google has issues, Brave still works. Scavio + Serper are both Google-based, so Google outages affect both.
- SearXNG meta-searches multiple engines simultaneously, providing the best redundancy — if you can maintain the infrastructure and tolerate inconsistent results.
- For coding agents on a Raspberry Pi or similar low-resource environment, the simplest setup (single provider with retry) is often sufficient. Over-engineering routing adds complexity that small agents don't need.
- The practical recommendation: Scavio MCP as primary (multi-platform, 11 tools), Serper as fallback (free 2,500 queries, Google-only). This covers 99%+ uptime without complex routing infrastructure.