OpenRouter Web Search MCP Server

OpenRouter Web Search MCP Server

An MCP server providing websearch using openrouter :online

ChristianSch

Research & Data
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README

OpenRouter Web Search MCP Server

This project implements an MCP (Model Context Protocol) server that provides a search_web tool. The tool performs a web search using OpenRouter's online models to generate concise, up-to-date answers.

Features

  • Exposes an MCP-compatible server over stdio
  • Provides a search_web tool that:
    • Accepts a search query string
    • Uses OpenRouter's online models to generate a fact-based answer
    • Returns the answer as plain text

Requirements

  • Go 1.18+
  • An OpenRouter API key

Environment Variables

Variable Description Required Default
OPENROUTER_API_KEY Your OpenRouter API key Yes
MODEL_NAME OpenRouter model name (should support :online suffix) No google/gemini-2.5-pro-exp-03-25:free:online

Installation

To install the MCP server, you can use the following command:

go install github.com/ChristianSch/openrouter-websearch-mcp

Usage

Run the server:

{
    "mcpServers": {
        "web-search": {
            "command": "openrouter-websearch-mcp",
            "env": {
                "OPENROUTER_API_KEY": "sk-or-v1-..."
            }
        }
    }
}

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