Alpaca

Verified Integration

Author: @Id•Category: ServerApplication

GitHub Repository

JSON-RPC 2.0

Protocol Standard

Sub-second

Execution Latency

Active

Operational Status

Client Configuration

— Connect Alpaca to Claude Desktop or Cursor in seconds

{
  "mcpServers": {
    "alpaca-3": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-alpaca-3"
      ],
      "env": {}
    }
  }
}

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).

Architecture & Capabilities

System Overview

Enables large language models to interact with Alpaca's trading infrastructure using natural language for stock and option trading.

Indexed Date

7/21/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for Alpaca

It's a Model Context Protocol (MCP) server that allows large language models (LLMs) like those in Claude Desktop to interact with Alpaca's trading API using natural language. You can trade stocks and options simply by typing what you want to do.

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