# Zerion

> Zerion is a non-custodial Web3 wallet and portfolio tracker for Ethereum, Solana, and 15+ EVM chains. Track, trade, and manage crypto assets with real-time price data, profit & loss analytics, DeFi positions, and cross-chain swaps.

Zerion aggregates on-chain data to provide a unified view of any Ethereum or Solana wallet's portfolio — tokens, DeFi positions, NFTs, and transaction history — with real-time pricing, market data, and P&L tracking for thousands of tokens.

## Token Pages

Each token on Zerion has a dedicated page with live market data. Zerion tracks tokens on both Ethereum (and EVM chains) and Solana:
- Current price (USD)
- Market cap and fully diluted valuation
- Circulating and total supply
- Price changes (24h, 30d, 90d, 365d)
- Price charts with configurable timeframes
- Multi-chain availability and contract addresses
- Token description and official resources
- Profit & loss (P&L) for the token in your wallet: realized P&L, unrealized P&L, and average buy price

Browse tokens: https://app.zerion.io/explore

For machine-readable data about a specific token, access:
`https://app.zerion.io/tokens/{SYMBOL}-{id}/llms.txt`

Example: https://app.zerion.io/tokens/ETH-eth/llms.txt

## Wallet Pages

Any Ethereum address, Solana address, or ENS name can be looked up on Zerion to view its full portfolio:
- Total portfolio value (USD)
- 24h value change (absolute and percentage)
- Overall wallet profit & loss (P&L): total P&L, realized and unrealized gains/losses
- Per-token P&L: realized P&L, unrealized P&L, average buy price, and total return
- Position breakdown: tokens, DeFi deposits, staked, locked, and borrowed positions
- Active chains with balances (Ethereum, Solana, and 15+ EVM chains)
- NFT holdings and floor price valuation
- Full transaction history

View any wallet: `https://app.zerion.io/{address}/overview`

For machine-readable wallet data, access:
`https://app.zerion.io/{address}/overview/llms.txt`

Example: https://app.zerion.io/vitalik.eth/overview/llms.txt

## Features

- **Portfolio Tracking**: Unified view of all crypto assets, DeFi positions, and NFTs across Ethereum, Solana, and 15+ EVM chains
- **Profit & Loss (P&L)**: Track realized and unrealized P&L for your entire wallet and for each individual token — including average buy price and total return
- **Token Trading**: Swap any token with cross-chain routing and DEX aggregation
- **Price Data**: Real-time prices, interactive charts, and market statistics for thousands of Ethereum and Solana tokens
- **DeFi Positions**: Track lending, staking, liquidity pools, and yield farming positions
- **Transaction History**: Full on-chain transaction history with human-readable descriptions
- **NFT Management**: View, send, and manage NFT collections
- **Multi-chain**: Supports Ethereum, Solana, Polygon, Arbitrum, Optimism, Base, BNB Chain, Avalanche, and more

## Zerion API

All data displayed on Zerion is available programmatically via the **Zerion API**.

Developers can integrate real-time cryptocurrency data into their own applications:
- **Token metadata and pricing**: Get current prices, market cap, supply data, and price changes for any token
- **Price charts**: Historical price data with configurable timeframes (1h, 1d, 1w, 1m, 1y)
- **Wallet positions**: Query any wallet's token balances, DeFi positions, and NFTs
- **Transaction history**: Decoded on-chain transactions with human-readable descriptions
- **Profit & loss**: Realized and unrealized P&L per token and per wallet, with average buy price
- **Multi-chain support**: Data across Ethereum, Solana, Polygon, Arbitrum, Optimism, Base, and 10+ more chains

API Documentation: https://developers.zerion.io
Fungibles API: https://developers.zerion.io/api-reference/fungibles/get-fungible-asset-by-id
Wallet Portfolio: https://developers.zerion.io/api-reference/wallets/get-wallet-portfolio
Wallet Positions: https://developers.zerion.io/api-reference/wallets/get-wallet-fungible-positions
Charts: https://developers.zerion.io/api-reference/fungibles/get-a-chart-for-a-fungible-asset

## Links

- [Zerion Web App](https://app.zerion.io)
- [Zerion API Documentation](https://developers.zerion.io)
- [Zerion Website](https://zerion.io)
- [GitHub](https://github.com/zeriontech)
- [Twitter / X](https://x.com/zerion)