Implement Brave Search MCP Server

[Copilot]

Adds a Model Context Protocol server implementation for Brave Search API, enabling AI agents to perform privacy-focused searches through a standardized interface.

Implementation

• MCP Server (src/index.ts): STDIO transport with 6 tools registered via @modelcontextprotocol/sdk
• API Client (src/brave-api.ts): Fetch-based client with result formatting, type validation via Zod
• Search Tools (src/tools/): Web, local, image, video, news, and summarizer endpoints
• Configuration (src/config.ts): Environment-based config with schema validation

Usage

// Tools accept search parameters and return formatted markdown
{
  name: 'brave_web_search',
  arguments: {
    q: 'typescript best practices',
    count: 10,
    safesearch: 'moderate'
  }
}
// Returns formatted results with titles, URLs, descriptions

Integration

Add to MCP client config:

{
  "mcpServers": {
    "brave-search": {
      "command": "node",
      "args": ["dist/index.js"],
      "env": { "BRAVE_API_KEY": "..." }
    }
  }
}

Security

• API key via environment variables only
• Zod schemas validate all inputs (count limits, enum values, required fields)
• CodeQL scan: 0 alerts
• Undefined handling for optional API response fields

Original prompt

https://github.com/brave/brave-search-mcp-server

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💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

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