Get your API key
Log into the dashboard and generate a free key.
API Reference
Explore all API endpoints.
Build with AI
Connect AI agents to onchain data via the Zerion CLI, MCP server, or x402 pay-per-request.
Build onchain apps
- Portfolio
- DeFi Positions
- Transaction History
- PnL
- NFTs
- Notifications
Fetch a wallet’s total portfolio value and break it down by individual token positions across all supported chains.
View recipe →
Why Zerion API
Zerion API provides endpoints for wallet data, token analytics, DeFi positions, and real-time webhooks across EVM chains and Solana. These endpoints abstract away multi-chain complexity and deliver clean, normalized data ready to power your application.
Always fresh
Data updates within milliseconds of new blocks. No stale reads, no polling delays.
Battle-tested
Powers the Zerion app used by millions. The same infrastructure backs your project.
Unified schema
Normalized responses across all chains. No per-chain parsing or custom logic needed.
Resources
Quickstart
Make your first request in under 5 minutes.
Supported Blockchains
See every chain the API covers.
Recipes
Step-by-step guides for common use cases.
Changelogs
Latest updates and new features.