Skills
.Work. You
Rest

npm-exists

Community

Verify npm package name availability instantly.

Software Engineering#api#npm#validation#registry#exists#package-name
AuthorMearman
Version1.0.0
Installs0

System Documentation

What problem does it solve?

Checks whether a given npm package name already exists in the registry to prevent publishing conflicts or wasted time on unavailable names.

Core Features & Use Cases

  • Existence check: Performs a HEAD request to the npm registry to verify availability for a given package name.
  • Scope and applicability: Useful before publishing a new package, validating dependencies, or ensuring a desired name is not already taken.
  • Reliability: Supports cached responses by default and an option to bypass cache for fresh results.

Quick Start

Run the script with a package name to see if it exists in the npm registry.

Dependency Matrix

Required Modules

None required

Components

scripts

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: npm-exists
Download link: https://github.com/Mearman/marketplace/archive/main.zip#npm-exists

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
View Source Repository

Agent Skills Search Helper

Install a tiny helper to your Agent, search and equip skill from 223,000+ vetted skills library on demand.