JSR-MCP Server
@sigmaSd
A Model Context Protocol (MCP) server that provides access to JSR (JavaScript Registry) module documentation.
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_docsfor 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.
FAQ from JSR-MCP Server
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.
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).
What does jsr_docs return?
It returns the documentation for the specified module in plain text format.
What runtime is required to run this server?
The server requires Deno and is started with deno run -A server.ts (all permissions).
