get https://api.simplehash.com/api/v0/nfts/collections_activity
This endpoint provides the sales volume and market caps of specific collections. More collections and sales from different token types are being added over time.
Currently, this endpoint supports Ethereum, Solana, Polygon, Bitcoin Ordinals, Arbitrum and Optimism. Other chains will be supported over time.
On EVM chains, this endpoint also includes volume from primary sales if no marketplace slug is supplied.
To understand more about the difference between Collections and Contracts, please refer to our FAQ