Definition
An MCP search gateway is a Model Context Protocol server that exposes a unified search tool to AI agents while routing queries to one or more search API providers based on availability, cost, and platform coverage.
In Depth
As AI agents become production systems, search reliability becomes critical. A single search provider going down or rate-limiting means your agent cannot ground its responses. An MCP search gateway solves this by sitting between your agent and multiple search providers, presenting a single search tool via MCP while handling provider selection, failover, and cost optimization internally. Gateway pattern: the MCP server exposes a 'search' tool with parameters for query, platform, and optional provider preference. Internally, it maintains a priority list of providers. For each query, it tries the primary provider first, falls back to secondary on failure, and logs provider performance metrics. Example configuration: Primary provider Scavio ($0.005/query, 6 platforms). Secondary provider Brave ($4-5/1K queries, web only). Tertiary provider SearXNG (free, self-hosted, 10-20% empty rate). The gateway tries Scavio first. If Scavio returns an error, it falls back to Brave. If Brave fails, it tries SearXNG. The agent sees a single tool call regardless of which provider fulfills it. Cost implications: at 5,000 queries/month with 98% primary success rate, you pay Scavio for 4,900 queries ($24.50) plus Brave for 100 fallback queries (~$0.50) = $25/month total with near-100% availability. Without a gateway, a single provider outage leaves your agent unable to search. The Scavio MCP server at mcp.scavio.dev/mcp already provides a production-ready MCP search endpoint. A gateway adds fallback logic on top of this base layer.
Example Usage
The team deploys an MCP search gateway as a Docker container. It exposes a single 'web_search' tool to their Claude agent. Internally, it routes to Scavio (primary, $0.005/query) with Brave fallback ($0.005/query). Over 30 days, Scavio handles 97% of queries. The 3% fallback queries during Scavio maintenance windows are served by Brave. The agent never sees a search failure.
Platforms
MCP Search Gateway is relevant across the following platforms, all accessible through Scavio's unified API:
- Amazon
- YouTube
- TikTok
Related Terms
Model Context Protocol (MCP)
Model Context Protocol (MCP) is an open standard that defines how large language models discover and invoke external too...
Agent Tool Dispatch
The mechanism by which an AI agent selects which external tool or API to call based on the user's intent, routes the req...
Search API Fallback Chain
A search API fallback chain is an ordered list of search providers that an application queries sequentially, automatical...