Synthetic Web Search MCP Server

A Model Context Protocol (MCP) server that exposes the Synthetic web search API as a tool for use with Claude and other MCP-compatible applications.

Overview

This server provides a search_web tool that allows MCP clients to perform web searches using the Synthetic API. Search results are returned as formatted JSON containing URL, title, text, and published date fields.

Quick Start with Claude Code

Add the MCP server to Claude Code with a single command:

claude mcp add synthetic-web-search -e SYNTHETIC_API_KEY=your_api_key_here -- npx -y synthetic-web-search-mcp@latest

Replace your_api_key_here with your actual Synthetic API key.

Usage with Claude Desktop

To use this MCP server with Claude Desktop, add the following to your Claude Desktop configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "synthetic-web-search": {
      "command": "npx",
      "args": ["-y", "synthetic-web-search-mcp@latest"],
      "env": {
        "SYNTHETIC_API_KEY": "your_actual_api_key_here"
      }
    }
  }
}

After adding the configuration, restart Claude Desktop. You can then use the web search tool in your conversations.

Usage with opencode

To use this MCP server with opencode, add the following to your opencode configuration:

{
  "mcp": {
    "synthetic-web-search": {
      "type": "local",
      "command": ["npx", "-y", "synthetic-web-search-mcp@latest"],
      "environment": {
        "SYNTHETIC_API_KEY": "your_actual_api_key_here"
      },
      "enabled": true
    }
  }
}

Replace your_actual_api_key_here with your actual Synthetic API key. Restart opencode after adding the configuration.

Testing with MCP Inspector

To test the server without Claude Desktop, use the MCP inspector:

npx @modelcontextprotocol/inspector synthetic-web-search-mcp@latest

This will open a web interface where you can:

List available tools
Test the search_web tool with different queries
View returned results in real-time

Available Tools

search_web

Search the web using the Synthetic API.

Arguments:

query (string, required): The search query string

Example:

Search for " TypeScript documentation"

Returns: A JSON array of search results, each containing:

url: The link to the search result
title: The title of the page
text: A snippet or content from the page
published: Publication date (if available)

API Details

Endpoint: https://api.synthetic.new/v2/search
Method: POST
Authentication: Bearer token via Authorization header
Request Body: JSON with query field

Project Structure

synthetic-web-search-mcp/
├── package.json
├── tsconfig.json
├── .env.example
├── README.md
├── src/
│   └── index.ts
└── dist/          (generated after build)
    ├── index.js
    └── index.d.ts

License

MIT

MCP Servers