Documentation
Aeon Feed is a free, public, real-time crypto price API. It streams top-of-book prices (best bid, best ask and sizes) from 12 centralized exchanges for the top 100 USDT pairs, plus a cross-exchange summary for every pair.
There is no API key, no signup and no SDK to install. Any WebSocket client works.
| WebSocket | wss://aeonfeed.com/ws |
| REST | https://aeonfeed.com/v1 |
| Format | JSON, protocol v1 |
| Exchanges | Binance, Bybit, OKX, MEXC, Gate, KuCoin, Bitget, Coinbase, Kraken, Bitfinex, Upbit, Crypto.com |
| Pairs | Top 100 USDT pairs (list) |
How it works
- A Rust server built on aeon-market-scanner-rs keeps WebSocket connections to every exchange.
- Symbols and prices are normalised into one format (
BTCUSDT, exchange ids likebinance). - Tickers are real-time: every top-of-book change is pushed to subscribers the moment it arrives from the exchange. Cross-exchange aggregates are recomputed and sent once per second.
- Each update is serialized once and fanned out to every subscriber.
Next steps
- Quickstart: connect and print prices in under a minute.
- Channels & payloads: every field explained.
- Limits & fair use: what to expect from a free service.