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Alpaca MCP Server

by cesarvarela
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Remote

羊驼 MCP 服务器

将 Alpaca 市场数据和 Broker API 作为 MCP 工具公开。

安装

npm install alpaca-mcp

Related MCP server: alpaca-mcp-server

本地开发

git clone <repo-url>
cd alpaca-mcp
npm install

环境变量

使用以下命令在项目根目录创建一个.env ：

ALPACA_ENDPOINT=https://data.alpaca.markets
ALPACA_BROKER_ENDPOINT=https://broker-api.alpaca.markets
ALPACA_API_KEY=YOUR_ALPACA_API_KEY
ALPACA_SECRET_KEY=YOUR_ALPACA_SECRET_KEY

命令

  • 启动（dev）： npm start （运行npx tsx index.ts ）

  • 构建： npm run build （编译为dist/ ）

  • 运行编译好的： node dist/index.js

用法

MCP 服务器运行后会监听 stdin/stdout。您可以使用任意 MCP 客户端或命令行工具：

npm link      # optional
alpaca-mcp    # starts server globally

可用工具

  • 获取资产{ assetClass?: "us_equity" | "crypto" }

  • 获取股票条形图{ symbols: string[]; start: string; end: string; timeframe: string }

  • 获取市场日{ start: string; end: string }

  • 获取新闻{ start: string; end: string; symbols: string[] }

每个都返回content[0].text中的 JSON 或错误。

MCP 客户端配置

要通过mcp.config.json集成，请在mcpServers键下添加以下内容：

{
  "mcpServers": {
    "alpaca-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "alpaca-mcp"
      ],
      "env": {
        "ALPACA_ENDPOINT": "https://data.alpaca.markets",
        "ALPACA_BROKER_ENDPOINT": "https://broker-api.alpaca.markets",
        "ALPACA_API_KEY": "<YOUR_API_KEY>",
        "ALPACA_SECRET_KEY": "<YOUR_SECRET_KEY>"
      }
    }
  }
}

## Publishing

```bash
npm publish

执照

国际学习中心

Available Tools

4 tools
get-assetsD
ParametersJSON Schema
NameRequiredDescriptionDefault
assetClassNous_equity

TDQS

D1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Tool has no description.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness1/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Tool has no description.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Tool has no description.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Tool has no description.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tool has no description.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Tool has no description.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get-market-daysD
ParametersJSON Schema
NameRequiredDescriptionDefault
endYes
startYes

TDQS

D1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Tool has no description.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness1/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Tool has no description.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Tool has no description.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Tool has no description.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tool has no description.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Tool has no description.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get-newsD
ParametersJSON Schema
NameRequiredDescriptionDefault
endYes
startYes
symbolsYes

TDQS

D1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Tool has no description.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness1/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Tool has no description.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Tool has no description.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Tool has no description.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tool has no description.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Tool has no description.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get-stock-barsD
ParametersJSON Schema
NameRequiredDescriptionDefault
endYes
startYes
symbolsYes
timeframeYes

TDQS

D1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Tool has no description.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness1/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Tool has no description.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Tool has no description.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Tool has no description.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tool has no description.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Tool has no description.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

  1. 4 tool updatesv1.0.0
    • First observedget-assets
    • First observedget-market-days
    • First observedget-news
    • First observedget-stock-bars
Deploy Server
One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

TDQS

D1.8/5.0

Scored across 4 tools

Disambiguation5/5

Each tool has a clearly distinct purpose: get-assets retrieves assets, get-market-days provides market schedule information, get-news fetches news data, and get-stock-bars obtains stock price bars. There is no overlap in functionality, making it easy for an agent to select the correct tool.

Naming Consistency5/5

All tool names follow a consistent verb_noun pattern with hyphens (get-assets, get-market-days, get-news, get-stock-bars). This uniformity makes the tool set predictable and easy to understand.

Tool Count3/5

With only 4 tools, the set feels thin for a financial data server, potentially lacking operations like trading, account management, or more granular data queries. However, it covers basic data retrieval functions adequately.

Completeness2/5

The tool surface is severely incomplete for a financial domain, offering only read operations (get-*) with no create, update, delete, or trading capabilities. This limits agents to passive data access without supporting full investment workflows.

Maintenance

ActivityInactive
ResponsivenessNo issues

Resources

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