Where the data comes from
Where every number on the platform comes from, how current it is, and what you see when a source does not answer.
Every figure on the platform comes from somewhere. This page lists where, how current it is, and what you see when a source does not answer.
The sources
Your wallets — Etherscan for Ethereum's history, Alchemy for balances and history on the other EVM networks and Solana, mempool.space for Bitcoin, and the networks' own public nodes for Mantle, Cronos, Moonbeam and Fantom.
Prices and the market — CoinStats for the coin list, prices, market caps and charts; CoinGecko for coins outside that list, for sectors and for the 7-day charts in Market.
Candles and technical analysis — Binance: the candles behind Technicals, the Pro chart and the coin page chart.
Derivatives — Binance for funding, open interest, long/short ratios, basis, the order book and liquidations; Bybit, OKX, Bitget, Hyperliquid and dYdX for the comparison across exchanges; Deribit for options.
On-chain holders — Ethplorer, for token holders and the largest wallets.
Security — GoPlus Security for token contracts and flagged addresses; Etherscan, Blockscout and Routescan for spending approvals; Revoke.cash to cancel them.
NFTs — Alchemy for your collections, with OpenSea floor prices.
Whales — the blockchains themselves, read directly.
Ethereum staking — beaconcha.in, ultrasound.money, DefiLlama, relayscan.io, blockprint and Etherscan.
Market mood and gas — alternative.me for the Fear & Greed Index; Etherscan for gas.
News — 20 outlets, listed in News.
AI readings — written by a language model from the figures on the page, on coin pages and news stories.
None of these are paid or promotional relationships. They are where the data comes from.
How current the numbers are
Prices, gas and the market list are close to live. Your balances are read again every few minutes, and the Refresh button on the Overview reads them immediately. Slower-moving information — a coin's sector, its categories — changes rarely and is updated accordingly.
Every page says when its data was last updated.
When a source fails
Two rules, which explain some things you may notice:
The last good value is kept. A network that does not answer keeps its previous reading instead of being replaced with a zero. Your portfolio does not appear to lose money because an endpoint timed out.
Missing is shown as missing. Where a number cannot be produced honestly, the platform leaves it out and says why, rather than showing a figure built from partial data. Realized P&L on a wallet whose history cannot be rebuilt is the clearest case — the columns are hidden and the reason is stated. Cost basis covers when that happens.
Prices need a market
A price shown on the platform comes from a market with real trading behind it.
Some tokens have a price that comes only from an automated market maker pool that could be drained by a single trade. Those are handled separately and kept out of your totals, because including them produces a net worth figure that cannot be sold. Unlisted tokens explains that in full.
Historical prices
Reconstructing a trade means pricing it at the moment it happened, not today.
Historical prices come from the same providers, at daily resolution for older data. A trade that happened during a volatile hour is priced at that day's value, so an individual row can differ from what you actually got. Over a full history the effect averages out; on a single large trade it may not.
If a figure in Transactions & P&L looks wrong, the price column is the first place to check.