The OpenRegister MCP Server enables AI assistants to interact with the OpenRegister API through the Model Context Protocol (MCP). This server exposes OpenRegister’s company search and data retrieval capabilities as tools that can be used by MCP-compatible clients. Repository: openregister-typescript/packages/mcp-server Run the MCP Server directly via npx: 
export OPENREGISTER_API_KEY="your-api-key"
npx -y openregister-mcp@latest

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Integration with Claude

For MCP clients that use configuration JSON (like Claude Desktop), add this configuration: 
{
  "mcpServers": {
    "openregister_api": {
      "command": "npx",
      "args": ["-y", "openregister-mcp", "--client=claude", "--tools=all"],
      "env": {
        "OPENREGISTER_API_KEY": "your-api-key"
      }
    }
  }
}

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Authentication

Set your OpenRegister API key as an environment variable: 
export OPENREGISTER_API_KEY="your-api-key-here"
Get your API key from the OpenRegister Keys. For more detailed configuration options and advanced usage, see the full repository documentation.