Do I need an API key to use this skill?

While optional, providing an OPENSEA_API_KEY or ALCHEMY_API_KEY is highly recommended for higher rate limits and more reliable metadata fetching.

Can I export the rarity rankings for external use?

Yes, the skill allows you to export full collection rankings in both JSON and CSV formats, making it easy to use in spreadsheets or other applications.

Which NFT standards are supported?

It works with any ERC-721 or ERC-1155 collection that is listed on OpenSea and follows standard metadata attribute formats.

What algorithms does the NFT Rarity Analyzer use?

The skill supports several calculation methods: rarity_score (sum of 1/frequency), statistical, average trait rarity, and entropy-based information theory.

How does the comparison feature work?

By using the compare command with a collection name and specific token IDs, the skill provides a side-by-side breakdown of traits and their relative rarity scores.

NFT Rarity Analyzer

Name: NFT Rarity Analyzer
Author: Brmbobo

byBrmbobo

•

Ciencia de Datos y ML

Calculates NFT rarity scores and ranks tokens by trait uniqueness using multiple algorithms and real-time metadata.

The NFT Rarity Analyzer is a specialized Claude Code skill designed to evaluate the scarcity of individual tokens within NFT collections. By fetching live metadata from the OpenSea and Alchemy APIs, it normalizes trait attributes and applies industry-standard algorithms—including rarity_score and entropy-based information theory—to provide accurate rankings. This tool is essential for collectors and developers who need to perform deep-dive analysis, compare specific tokens, or export comprehensive ranking data in JSON and CSV formats for external processing and valuation.

Características Principales

011 GitHub stars

02Fetches real-time metadata from OpenSea and Alchemy APIs for ERC-721 and ERC-1155 collections.

03Provides detailed trait distribution analysis and side-by-side token comparisons.

04Exports comprehensive ranking data in CSV and JSON formats for data science workflows.

05Supports multiple rarity algorithms including rarity_score, statistical, and information theory.

06Includes an integrated caching system to optimize performance and manage API rate limits.

Casos de Uso

01Comparing trait uniqueness across multiple tokens to identify undervalued digital assets.

02Analyzing the rarity of a specific token before making a purchase or trade decision.

03Generating a comprehensive rarity leaderboard for an entire NFT collection for marketplace listing.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add brmbobo/web2podcast analyzing-nft-rarity

For use in Claude.ai and ChatGPT

Características Principales

011 GitHub stars

02Fetches real-time metadata from OpenSea and Alchemy APIs for ERC-721 and ERC-1155 collections.

03Provides detailed trait distribution analysis and side-by-side token comparisons.

04Exports comprehensive ranking data in CSV and JSON formats for data science workflows.

05Supports multiple rarity algorithms including rarity_score, statistical, and information theory.

06Includes an integrated caching system to optimize performance and manage API rate limits.

Casos de Uso

01Comparing trait uniqueness across multiple tokens to identify undervalued digital assets.

02Analyzing the rarity of a specific token before making a purchase or trade decision.

03Generating a comprehensive rarity leaderboard for an entire NFT collection for marketplace listing.