MCP (Model Context Protocol) is Anthropic’s open standard for connecting Claude to external tools. Set up servers in your Claude config:
{
"mcpServers": {
"postgres": {
"command": "npx",
"args": ["-y", "@modelcontextprotocol/server-postgres", "postgresql://localhost/mydb"]
},
"playwright": {
"command": "npx",
"args": ["-y", "@anthropic/plugin-playwright"]
}
}
}
This gives Claude the ability to query your database, browse the web, manage files, and interact with external APIs through a standardized protocol.