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JSR-MCP Server

@sigmaSd

Repository

Basic information

Category

Other

Transports

stdio

Author

sigmaSd

About JSR-MCP Server

A Model Context Protocol (MCP) server that provides access to JSR (JavaScript Registry) module documentation.

JSR-MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "jsr-mcp": {
      "command": "deno",
      "args": [
        "run",
        "-A",
        "server.ts"
      ]
    }
  }
}

JSR-MCP Server tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is JSR-MCP Server?

JSR-MCP Server is a Model Context Protocol (MCP) server that provides access to JSR (JavaScript Registry) module documentation. It uses Deno's document API to fetch and serve module documentation on request. This server is intended for developers and AI coding assistants that need to look up JavaScript/TypeScript API docs via the MCP protocol.

How to use JSR-MCP Server?

Run the server with deno run -A server.ts to start. Once running, clients can invoke the single tool jsr_docs with a module parameter (e.g., @std/path) to retrieve that module's documentation.

Key features of JSR-MCP Server

  • Provides a simple MCP-based interface for JSR module documentation.
  • Exposes a single tool: jsr_docs for retrieving module documentation.
  • Uses Deno's document API to fetch documentation.
  • Returns documentation in plain text format.

Use cases of JSR-MCP Server

  • Retrieving documentation for any JSR module (e.g., @std/path) in an AI coding assistant.
  • Integrating JSR module docs into a chat-based IDE like Zed.
  • Automating documentation lookups for JavaScript/TypeScript projects using MCP tools.
  • Enabling LLM agents to access up-to-date API documentation for JSR packages.

Frequently asked questions

1

What tool does this server expose?

It exposes a single tool called `jsr_docs` that clients can use to request documentation for any JSR module.

2

What parameters does `jsr_docs` accept?

It accepts a required string parameter `module` which is the name of the JSR module to document (e.g., `@std/path`).

3

What does `jsr_docs` return?

It returns the documentation for the specified module in plain text format.

4

What runtime is required to run this server?

The server requires Deno and is started with `deno run -A server.ts` (all permissions).

Comments

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