OS

OS Market

Multi-chain NFT Market · Seaport On-chain Analytics
Sales
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Volume
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Collections
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Flagged
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📈 OpenSea Sales

🐋 Whales & Wash Trading

🗂️ Scan a Collection

Displays full-scan data: sales, every holder with units + first seen, flags, wash pairs, connected projects, and a per-chain sales breakdown.

ℹ️ About This Tool

This is a read-only on-chain market analytics dashboard for OpenSea Seaport NFT sales. Every sale is recorded as an OrderFulfilled log in the Seaport contract on each chain. This page replays those logs directly from the chain — no API key, no upload, read-only.

Supported chains:
• Base (8453) · • Ink (11111, ERC-1155 + ERC-721)
• Ethereum (1) · • ApeChain (33139) · • Robinhood (4663)

OpenSea link format: https://opensea.io/assets/{chain-slug}/{contractAddress}
Master tools:
📊 Volume breakdown (1-7 day) · 🏆 Top collections · 🔍 Wallet audit · 🫧 Connected projects · 👥 Holders · 🚩 Flags

Enter a collection address above and click Scan Collection to load the full scan.

📊 Volume Breakdown (1-7 days)

🏆 Top Collections (ranked by volume)

🔍 Wallet Audit (fungible wallets — buys/sells)

🫧 Connected Projects (bubble graph)

Read-only on-chain market · Seaport OrderFulfilled replay · multi-chain (Base/Ink/Ethereum/ApeChain/Robinhood) · no keys, no upload