Alpaca MCP Server

Name: Alpaca MCP Server
Author: alpacahq

Official

alpaca-mcp-server · by alpacahq

Alpaca’s official MCP Server lets you trade stocks, ETFs, crypto, and options, run data analysis, and build strategies in plain English directly from your favorite LLM tools and IDEs

1.1k 17 tools GitHub PyPI

No known CVEs

MIT license

Actively maintained

Last commit 0d ago

Works with most clients

Transport: stdio, sse, http

17 tools · ~800 tok

Grade B · 0.4% of 200K ctx

MCPpedia last refreshed this data 17h ago

Edit this pageView history

Alpaca MCP Server is an MCP server that alpaca’s official MCP Server lets you trade stocks, ETFs, crypto, and options, run data analysis, and build strategies in plain English directly from your favorite LLM tools and IDEs. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 87/100 on MCPpedia's security, maintenance and efficiency rubric.

Finance

Step 1

Install in your client

Config is the same across clients - only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "alpaca": {
      "env": {
        "ALPACA_API_KEY": "your_alpaca_api_key",
        "ALPACA_SECRET_KEY": "your_alpaca_secret_key"
      },
      "args": [
        "alpaca-mcp-server"
      ],
      "command": "uvx"
    }
  }
}

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Read me

What Alpaca Mcp Server does

A comprehensive Model Context Protocol (MCP) server for Alpaca's Trading API. Enable natural language trading operations through AI assistants like Claude, Cursor, and VS Code. Supports stocks, options, crypto, portfolio management, and real-time market data.

Test This Server

This server supports HTTP transport. Be the first to test it - help the community know if it works.

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Scored, not listed

Why this score

Five weighted categories - click any category to see the underlying evidence.

Score breakdown

87/100across 5 weighted dimensions

How we score →

0255075100

−13

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked alpaca-mcp-server against OSV.dev.

Inventory

Tools (17)

Click any tool to inspect its schema.

~800 tokens total

Community

Reviews

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Have you used this server?

Share your experience - it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is Alpaca Mcp Server safe to use?: Alpaca Mcp Server has no known CVEs as of the latest MCPpedia security scan. Authentication requirements were not detected automatically - check the project's documentation before connecting in a shared environment. Licensed under MIT.
How do I install Alpaca Mcp Server?: Alpaca Mcp Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Alpaca Mcp Server do?: Alpaca Mcp Server provides 17 tools: init, Arguments, ALPACA_TOOLSETS, Positions, Watchlists and 12 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Alpaca Mcp Server?: Alpaca Mcp Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is Alpaca Mcp Server actively maintained?: Alpaca Mcp Server is actively maintained - last commit was 0 days ago. It has 1,082 GitHub stars.

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MCP Security Weekly

Get CVE alerts and security updates for Alpaca Mcp Server and similar servers.

Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

{ "mcpServers": { "alpaca": { "env": { "ALPACA_API_KEY": "your_alpaca_api_key", "ALPACA_SECRET_KEY": "your_alpaca_secret_key" }, "args": [ "alpaca-mcp-server" ], "command": "uvx" } } }

Upgrading from V1

V2 is a complete rewrite built with FastMCP and OpenAPI. None of the V1 tools exist in V2 — tool names, parameters, and schemas have changed. You cannot use V2 as a drop-in replacement if your setup depends on specific V1 tool names or parameters.

What changes

Aspect

Tool names

Hand-crafted (e.g. get_account_info)

Spec-derived with overrides (e.g. get_account_info — names may overlap but schemas differ)

Parameters

Custom schemas

Aligned with Alpaca API specs

Configuration

.env + init command

Env vars in MCP client config only

Tool filtering

Not supported

ALPACA_TOOLSETS env var

Whitelisting

Not supported

Use ALPACA_TOOLSETS to restrict tools

How to avoid V1-style usage in V2

MCP clients discover tools dynamically from the server. There is no config file where you "whitelist" tool names — the client gets whatever tools the server exposes. To avoid your client or AI assistant using V2 incorrectly:

Do not reuse V1 config — Treat V2 as a new server. Update your MCP client confi

Frequently Asked Questions

Is Alpaca Mcp Server safe to use?

Alpaca Mcp Server has no known CVEs as of the latest MCPpedia security scan. Authentication requirements were not detected automatically - check the project's documentation before connecting in a shared environment. Licensed under MIT.

How do I install Alpaca Mcp Server?

Alpaca Mcp Server supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can Alpaca Mcp Server do?

Alpaca Mcp Server provides 17 tools: init, Arguments, ALPACA_TOOLSETS, Positions, Watchlists and 12 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with Alpaca Mcp Server?

Alpaca Mcp Server is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is Alpaca Mcp Server actively maintained?

Alpaca Mcp Server is actively maintained - last commit was 0 days ago. It has 1,082 GitHub stars.

Alpaca MCP Server v2 is here. This version is a complete rewrite built with FastMCP and OpenAPI. If you're upgrading from v1, please read the Upgrade Guide — tool names, parameters, and configuration have changed.

Upgrading from V1
Prerequisites
Getting Your API Keys
Setup
Configuration
Features
Example Prompts
Available Tools
Testing
Project Structure
Troubleshooting
Disclosure

Upgrading from V1

What changes

Aspect	V1	V2
Tool names	Hand-crafted (e.g. `get_account_info`)	Spec-derived with overrides (e.g. `get_account_info` — names may overlap but schemas differ)
Parameters	Custom schemas	Aligned with Alpaca API specs
Configuration	`.env` + `init` command	Env vars in MCP client config only
Tool filtering	Not supported	`ALPACA_TOOLSETS` env var
Whitelisting	Not supported	Use `ALPACA_TOOLSETS` to restrict tools

How to avoid V1-style usage in V2

Do not reuse V1 config — Treat V2 as a new server. Update your MCP client confi

... View full README on GitHub

Alpaca MCP Server

Install in your client