Real-time DEX trading activity from Nansen-labeled smart money wallets across multiple chains.
What it does
The Nansen Smart Money DEX Trades endpoint provides granular, transaction-level data showing what sophisticated traders and funds are buying and selling on decentralized exchanges. It covers the last 24 hours of activity and spans multiple blockchains including Ethereum, Solana, Base, BNB, Arbitrum, and more.
Each trade record includes the blockchain, timestamp, transaction hash, trader address and Nansen label, bought/sold token addresses and symbols, token amounts, token age in days, market cap, FDV, and estimated trade value in USD. Results can be filtered by smart money label type (Fund, Smart Trader, 30D/90D/180D Smart Trader), chain, trader address, token symbol, trade value range, and token age. Sorting and pagination are fully supported.
The endpoint is a POST request priced at $0.05 per call via the x402 protocol. It is part of Nansen's broader API (v1) which includes smart money netflow, holdings, perpetual trades, wallet profiling, Token God Mode analytics, prediction market data, and AI research agents. The API uses rate limiting (per-second and per-minute) and returns credit usage headers. Authentication is via API key or x402 payment signature.
Capabilities
Use cases
- —Track what tokens smart money wallets are buying/selling on DEXes in real time
- —Build trading signals based on smart money DEX activity across chains
- —Monitor fund and smart trader accumulation or distribution patterns
- —Filter DEX trades by token age, market cap, or trade value to find early-stage token interest
- —Integrate smart money trade feeds into automated trading bots or dashboards
Fit
Best for
- —Crypto trading desks needing real-time smart money signals
- —DeFi researchers analyzing on-chain fund behavior
- —Quantitative strategies based on labeled wallet activity
- —Multi-chain DEX trade monitoring
Not for
- —Historical DEX trade data beyond 24 hours (use other Nansen endpoints)
- —CEX (centralized exchange) trade data
- —Non-crypto or traditional finance use cases
Quick start
curl -X POST https://api.nansen.ai/api/v1/smart-money/dex-trades \
-H 'Content-Type: application/json' \
-H 'Payment-Signature: <x402_payment>' \
-d '{
"chains": ["ethereum"],
"filters": {
"include_smart_money_labels": ["Fund", "Smart Trader"],
"trade_value_usd": {"min": 1000}
},
"pagination": {"page": 1, "per_page": 10}
}'Example
Request
{
"chains": [
"ethereum",
"solana"
],
"filters": {
"trade_value_usd": {
"max": 100000,
"min": 1000
},
"token_bought_age_days": {
"max": 30,
"min": 1
},
"include_smart_money_labels": [
"Fund",
"Smart Trader"
]
},
"order_by": [
{
"field": "trade_value_usd",
"direction": "DESC"
}
],
"pagination": {
"page": 1,
"per_page": 10
}
}Response
{
"data": [
{
"chain": "ethereum",
"trader_address": "0x28c6c06298d514db089934071355e5743bf21d60",
"block_timestamp": "2025-01-15T14:30:00Z",
"trade_value_usd": 5000.5,
"transaction_hash": "0xabc123...",
"token_sold_amount": 5000,
"token_sold_symbol": "USDC",
"token_sold_address": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
"token_bought_amount": 50000000,
"token_bought_symbol": "PEPE",
"token_sold_age_days": 1800,
"token_bought_address": "0x6982508145454ce325ddbe47a25d4ec3d2311933",
"trader_address_label": "Smart Trader [0x28c6c0]",
"token_bought_age_days": 600,
"token_sold_market_cap": 35000000000,
"token_bought_market_cap": 4500000000
}
],
"pagination": {
"page": 1,
"per_page": 10,
"is_last_page": false
}
}Endpoint
Quality
Full OpenAPI 3.1 schema with detailed request/response models, clear pricing ($0.05/call via x402), live 402 challenge confirmed, comprehensive filter and sort options documented. Minor gap: no crawled documentation pages (all returned routing errors), but the OpenAPI spec is thorough.
Warnings
- —No external documentation pages were accessible (all returned 'no Route matched' errors); all information derived from OpenAPI spec.
- —Response schema references ($ref to SmartMoneyDexTradesResponse) are present but component details for individual fields are fully expanded in the spec.
Citations
- —Endpoint is POST /api/v1/smart-money/dex-trades with x402 payment at $0.05 per callhttps://api.nansen.ai
- —Endpoint returns 402 Payment Required confirming x402 protocol is livehttps://api.nansen.ai/api/v1/smart-money/dex-trades
- —OpenAPI spec version 3.1.0 titled 'Nansen API' describes the full endpoint schemahttps://api.nansen.ai