100
Free credits to test core API endpoints. No commitment, no expiry pressure.
1,000
Pro credits with full access to all endpoints, including Nansen's proprietary data.
$0.001
Cost per API credit. Buy in bulk for better rates — top up as much as you need.
Labelled Addresses
Entities
Data Processed Daily
"Nansen’s API transforms complex on-chain data into actionable trading insights with remarkable simplicity. It’s already uncovering hidden layers of data — turning blockchain noise into alpha-generating signals in just a few API calls."

Pulsar Capital
DeFi Trader
"Nansen’s API was the missing piece in our product. It brought deep token-level intelligence into the hands of every WIDI use, beginner or pro. It’s fast, reliable, and a game-changer for any trading-focused dApp."

Matty
Co-Founder & CEO, WIDI
How to Access
Nansen API
Direct HTTP access to onchain data using your API key or x402 micropayments.
Nansen MCP
Nansen CLI
A command-line interface for the Nansen API. Structured JSON output built for AI agents.
x402 Pricing
x402 enables pay-per-call access to the Nansen API using USDC on Base or Solana.
Basic Tier
$0.01
/call
Multichain: Sol, ETH, HYPE, Base, and 20+ chains
10 Prompts for Nansen Agent
10 Wallets for Portfolio Tracking
Limited Smart Alerts, Custom Labels & Watchlists
Limited Access to Nansen Labels
Premium Tier
Popular
$0.05
/call
Multichain: Sol, ETH, HYPE, Base, and 20+ chains
2000 Nansen Agent Credits
Stack Nansen Points with every trade
Unlimited Portfolios, Watchlist, Smart Alerts
Full Access to PnL & Nansen Labels (incl. Smart Money)
API/MCP One-Time Credits
WIDI
WIDI, a mobile-first Solana copy trading app, integrated the Nansen API to bring structured, real-time onchain token insights directly into its UI.
Pulsar Capital
A DeFi trader at a Tier 1 market-making firm replaced manual dashboard workflows with automated insight pipelines using the Nansen API.
Web Capital
WebCapital, a venture and onchain research firm, upgraded from manual token tracking to an automated, API-powered workflow using Nansen.
Corbits
Corbits integrated Nansen’s API with x402 to simplify developer access to real-time onchain data, enabling seamless automation and prototyping.
Synternet
Synternet integrated Nansen's API into its multi-agent UI to give users AI-native access to onchain insights like Smart Money flows and early trends.
Matthew K, Analyst
A DeFi wallet platform used the Nansen API to spot Smart Money trends and uncover 100%+ gainers, streamlining research with onchain data.
