Setting up Blockchain Analytics (Nansen)
Nansen is on-chain intelligence: labeled wallets (over 200 million tagged addresses), smart money tracking, NFT analytics, flow of funds. Main value is not in data itself, but in context: instead of "address 0x1234 bought token" Nansen says "known DeFi whale bought token for $2M in last 24h".
What Nansen Provides and What Tasks It Solves
Smart Money tracking—main feature. Nansen categorizes wallets: DeFi funds, CEX hot wallets, sandwich bots, wash traders, early protocol adopters. For trading strategies: track wallets that historically entered projects before their growth.
Token God Mode—dashboard for specific token: holders, top traders by period, incoming/outgoing flows, balance changes. Essential for due diligence on new project: if top holders are exchange wallets and 5 unknown addresses hold 80% supply—red flag.
Nansen Query (advanced tier)—SQL-like queries to on-chain data. Allows building custom analytical reports.
Alerts—notifications when specific wallet or wallet group makes transaction.
Setup for Project: What's Really Done
Portfolio monitoring for team/fund
Add own wallets to Nansen Portfolio, set up alerts on significant counterparty transactions, set up dashboard for team—what metrics to look at in morning.
Alert configuration:
Alert type: Wallet Activity
Wallet: [list of tracked addresses]
Conditions:
- Transaction value > $100k
- Interaction with [specific protocol]
- Token received: [tokens from watchlist]
Notification: Telegram / Email / Slack webhook
Monitoring Own Protocol
If you have DEX, lending, or yield protocol—Nansen lets you see who your users are in context. Large DeFi operators arrived—good signal. Known wash traders arrived—reason for concern.
Setup: Custom Labels for own contracts, TVL breakdown dashboard by wallet types.
Competitive Intelligence
Tracking competitor protocols: who from smart money is there, when they entered, when they exited. Flow of funds change—early indicator of sentiment change.
Integrating Nansen Data into Own Systems
Nansen API (available with Enterprise tier) allows pulling data into own dashboards:
import requests
headers = {'apiKey': NANSEN_API_KEY}
# Wallet information
resp = requests.get(
f'https://api.nansen.ai/v1/wallet/{address}/summary',
headers=headers
)
wallet_data = resp.json()
# wallet_data['labels'] — array of labels: ['DeFi Fund', 'Smart Money']
# Top holders of token
resp = requests.get(
f'https://api.nansen.ai/v1/token/{token_address}/holders',
params={'limit': 100},
headers=headers
)
For teams that need data in own BI system (Metabase, Grafana, Tableau)—API + scheduled pulls into PostgreSQL or ClickHouse.
Alternatives and Complements
Nansen is expensive (from $150/month). For some tasks there are free or cheaper alternatives:
| Task | Nansen | Alternative |
|---|---|---|
| On-chain analytics | Token God Mode | Dune Analytics (free SQL) |
| Wallet labeling | Built-in | Arkham Intelligence |
| NFT analytics | NFT Paradise | NFTGo, Icy Tools |
| Protocol TVL | — | DefiLlama (free) |
| Tx monitoring | Alerts | Etherscan Alerts (free) |
Dune Analytics—often right answer for custom analytics. SQL on top of on-chain data, public dashboards, free tier sufficient for most tasks. Nansen stronger when need ready labels and smart money context without writing queries.
What Gets Done in 1 Day
Setting up Nansen account for project tasks, configuring Portfolio and Watchlist with relevant addresses, setting up alerts to Telegram or Slack, if API access available—basic data integration into your system, overview of key dashboards and metrics for team.