mcp-native metasearch query execution
Executes search queries against a SearXNG instance through the Model Context Protocol, translating MCP tool-call schemas into HTTP requests to SearXNG's REST API and marshaling results back as structured JSON. The implementation wraps SearXNG's `/search` endpoint with MCP's standardized tool-calling interface, enabling LLM agents to invoke searches without direct HTTP knowledge.
Unique: Bridges SearXNG (a privacy-respecting metasearch engine) with MCP protocol, enabling LLM agents to use decentralized search without relying on commercial search APIs. Unlike direct HTTP integration, MCP standardization allows any MCP-compatible client (Claude, custom agents) to use the same interface.
vs alternatives: Provides privacy-first search integration for MCP agents without vendor lock-in to OpenAI/Google APIs, though with lower result quality than commercial search engines due to SearXNG's aggregation model
searxng parameter mapping and schema translation
Translates MCP tool-call parameters into SearXNG-compatible query parameters, handling schema validation, parameter normalization, and optional argument handling. The server maintains a mapping layer between MCP's standardized tool schema and SearXNG's query API, including support for filters like language, category, and time range if the SearXNG instance exposes them.
Unique: Implements a declarative parameter mapping layer that abstracts SearXNG's query API behind MCP's tool schema, allowing clients to remain agnostic to SearXNG's specific parameter names and formats while maintaining type safety.
vs alternatives: More maintainable than hardcoding SearXNG parameters directly in agent prompts, and more flexible than generic HTTP wrappers because it validates parameters before execution
multi-engine result aggregation and normalization
Receives heterogeneous search results from SearXNG's aggregated engines (Google, Bing, DuckDuckGo, etc.) and normalizes them into a consistent JSON schema with fields like title, URL, snippet, and source engine. The normalization layer handles varying result formats from different search engines and presents a unified interface to MCP clients.