Skill

analyzing-nft-rarity

Fetches OpenSea NFT metadata, calculates rarity scores via algorithms like rarity_score or entropy, ranks tokens, and compares collections. Use for rarity analysis and exports.

Python

Bash

developer-tools

api-development

npx claudepluginhub jeremylongshore/claude-code-plugins-plus-skills --plugin nft-rarity-analyzer

Tool Access

This skill is limited to using the following tools:

ReadBash(python3:*)

Preview

NFT rarity analysis skill that:

Supporting Assets

ARD.mdPRD.mdconfig/settings.yamlreferences/errors.mdreferences/examples.mdreferences/implementation.mdscripts/formatters.pyscripts/metadata_fetcher.pyscripts/rarity_analyzer.pyscripts/rarity_calculator.pyscripts/trait_parser.py

SKILL.md

Similar Skills

token-integration-analyzer

Analyzes ERC20/ERC721 token implementations for compliance, 20+ weird patterns, contract composition, owner privileges, on-chain scarcity, and non-standard token handling in protocols.

asi

Nft Systems

Architects NFT infrastructure: ERC-721/1155 minting, Metaplex Candy Machine, metadata on IPFS/Arweave, OpenSea/Blur/Magic Eden integrations, royalties, generative art on EVM/Solana.

3 files

omer-metin-skills-for-antigravity-2

nft-standards

36.4k

Implements ERC-721 and ERC-1155 NFT standards with Solidity code examples, metadata best practices, royalties, soulbound tokens, and dynamic NFTs for collections and marketplaces.

antigravity-awesome-skills

Stats

Parent Repo Stars1853

Parent Repo Forks248

Last CommitApr 3, 2026

Actions

View Source View Plugin View on GitHub View README

Help us improve

Share bugs, ideas, or general feedback.

Analyzing NFT Rarity

Overview

NFT rarity analysis skill that:

Fetches collection metadata from OpenSea API
Parses and normalizes trait attributes
Calculates rarity using multiple algorithms
Ranks tokens by composite rarity score
Exports data in JSON and CSV formats

Prerequisites

Python 3.8+ with requests library
Optional: OPENSEA_API_KEY for higher rate limits
Optional: ALCHEMY_API_KEY for direct metadata fetching

Instructions

1. Analyze a Collection

cd ${CLAUDE_SKILL_DIR}/scripts && python3 rarity_analyzer.py collection boredapeyachtclub

Options:

--limit 500: Fetch more tokens for analysis
--top 50: Show top 50 tokens
--traits: Include trait distribution
--rarest: Show rarest traits
--algorithm [statistical|rarity_score|average|information]

2. Check Specific Token

cd ${CLAUDE_SKILL_DIR}/scripts && python3 rarity_analyzer.py token pudgypenguins 1234  # port 1234 - example/test

3. Compare Multiple Tokens

cd ${CLAUDE_SKILL_DIR}/scripts && python3 rarity_analyzer.py compare azuki 1234,5678,9012  # 5678: 1234: 9012 = configured value

4. View Trait Distribution

cd ${CLAUDE_SKILL_DIR}/scripts && python3 rarity_analyzer.py traits doodles

5. Export Rankings

JSON:

cd ${CLAUDE_SKILL_DIR}/scripts && python3 rarity_analyzer.py export coolcats > rankings.json

CSV:

cd ${CLAUDE_SKILL_DIR}/scripts && python3 rarity_analyzer.py export coolcats --format csv > rankings.csv

6. Manage Cache

cd ${CLAUDE_SKILL_DIR}/scripts && python3 rarity_analyzer.py cache --list
cd ${CLAUDE_SKILL_DIR}/scripts && python3 rarity_analyzer.py cache --clear

Rarity Algorithms

Algorithm	Description	Best For
`rarity_score`	Sum of 1/frequency (default)	General use, matches rarity.tools
`statistical`	Same as rarity_score	Backward compatibility
`average`	Mean of trait rarities	Balanced scoring
`information`	Entropy-based (-log2)	Information theory approach

Output

Collection Summary: Name, supply, trait types
Rankings: Tokens sorted by rarity score with percentile
Token Detail: Full trait breakdown with contribution
Comparison: Side-by-side trait comparison

Supported Collections

Works with any ERC-721/ERC-1155 collection that has:

OpenSea listing
Standard attributes array format
Accessible metadata

Error Handling

See ${CLAUDE_SKILL_DIR}/references/errors.md for:

API rate limiting
IPFS gateway issues
Collection not found
Token ID not found

Examples

See ${CLAUDE_SKILL_DIR}/references/examples.md for:

Collection analysis workflows
Token comparison
Export and caching
Algorithm comparison

Resources

OpenSea API - Metadata source
Rarity Tools - Reference rankings
IPFS - Decentralized metadata