MCP Server - JavaScript SDK

Name: MCP Server - JavaScript SDK
Author: MCP-Mirror

@MCP-Mirror

リポジトリ

MCP Server - JavaScript SDK について

Mirror of

#mcp #javascript-sdk #model-context-protocol

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MCP-Mirror

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概要

What is MCP Server - JavaScript SDK?

MCP Server - JavaScript SDK is an unofficial JavaScript SDK for the Model Context Protocol. It allows developers to define server prompts, resources, and tools in separate JavaScript files and create a MCP server instance.

How to use MCP Server - JavaScript SDK?

Create files defining prompts, resources, and tools (e.g., prompts.js, resources.js, tools.js). Then import them into a server file and instantiate MCP with an info object (name, version), plus the prompts, resources, and tools objects.

Key features of MCP Server - JavaScript SDK

Define prompts with description, arguments, and message content
Define resources by URI and MIME type
Define tools with description, async handler, and JSON schema for parameters
Simple server instantiation with new MCP(infos, prompts, resources, tools)
Logs saved to system-specific user log directories

Use cases of MCP Server - JavaScript SDK

Building a custom MCP-compatible server with custom prompts, resources, and tools
Rapid prototyping of MCP services using JavaScript/Node.js
Integrating MCP with existing JavaScript codebases
Educational experimentation with the Model Context Protocol

FAQ from MCP Server - JavaScript SDK

What is MCP Server - JavaScript SDK?

It is an unofficial JavaScript SDK for the Model Context Protocol that lets you define prompts, resources, and tools and run a server.

How do I define prompts?

Export a prompts object from a JavaScript file. Each key is the prompt name; value contains description, arguments, and messages with role and content.

How do I define resources?

Export a resources object where each key is a resource name and value has uri and mimeType fields.

How do I define tools?

Export a tools object. Each tool has description, an async handler function, and a schema object describing parameters.

Where are server logs stored?

Logs are stored in the user system logs directory: ~/.local/share/logs (Linux), ~/Library/Logs (macOS), or %USERPROFILE%\AppData\Local\Logs (Windows).