Reference

This section explains the key concepts and terminology used throughout the Nansen API.

Guides

• Supported Chains - Blockchains supported by the API

• Native Tokens - Placeholder addresses, query examples, and coverage limitations

• Address Formats - Address formats for each chain type

• Smart Money Labels - Understanding smart money classifications

• Filter Types - Available filter types and usage

• Sorting - How to sort API results

Quick Reference

Chains

The API supports 37 blockchains:

Type	Examples
EVM	Ethereum, Arbitrum, Base, BNB, Polygon, Optimism
Non-EVM	Solana, Bitcoin, TON, Tron, Starknet, SUI

Smart Money Labels

Label	Description
Smart Trader	Historically profitable traders; covers all 30D/90D/180D Smart Traders
30D/90D/180D Smart Trader	Time-based performance labels; deprecated, use Smart Trader
Smart HL Perps Trader	Profitable Hyperliquid traders

Funds are not part of Smart Money. The Fund value is deprecated in Smart Money label filters; see Smart Money Labels.

Common Filters

Filter Type	Example
Numeric Range	{"min": 1000, "max": 50000}
Integer Range	{"min": 10, "max": 100}
Address List	["0x...", "0x..."]
Label List	["Smart Trader", "Whale"]

Sort Order

{
  "order_by": [
    {"field": "value_usd", "direction": "DESC"}
  ]
}