Faktenrechner
The Fact Calculator for Crypto Derivatives
We don't tell you what to think. We show you what the data says. Faktenrechner aggregates real derivatives data from the world's largest crypto exchanges into one unified, free platform — so you can make informed decisions based on facts, not noise.
4
Exchanges tracked
3
Trading pairs
30s
Data refresh rate
24/7
Always live
—
Data points collected
What is Faktenrechner?
Faktenrechner (German for "Fact Calculator") is a free crypto derivatives analytics platform. We collect and aggregate data that traders typically have to visit 4-5 different websites to find — all in one place, updated in real time.
Our mission is simple: give retail traders access to the same derivatives data that institutional traders use, for free.
Funding Rates
Cross-exchange comparison including Hyperliquid DEX vs CEX divergence
Open Interest
Market share breakdown across all tracked exchanges
Liquidations
Real liquidation events streamed live from exchange WebSockets
Long/Short Ratio
Retail vs smart money sentiment with divergence detection
Signals
Algorithmic directional signals with verified performance tracking
Free API
All data available via REST API — no key required for basic access
Data Sources
We aggregate data from the following exchanges via their public APIs. No API keys required — all data is from public endpoints.
Binance Futures — funding, OI, liquidations, long/short
Bybit Linear — funding, OI, liquidations, long/short
OKX Swap — funding, open interest
Hyperliquid — on-chain funding, OI (hourly, normalised to 8h)
Data is collected every 30 seconds for CEX sources and every 60 seconds for Hyperliquid. All data is stored in a TimescaleDB time-series database and cached in Redis for fast delivery.
Roadmap
- LiveFree unified dashboard — funding, OI, liquidations, L/S ratio
- Live4-exchange coverage including Hyperliquid DEX
- LiveAlgorithmic signals with performance tracking
- LiveFree public REST API
- SoonEmail & Telegram alerts when signals fire
- SoonAPI Pro tier — higher rate limits, WebSocket streaming
- PlannedTrading performance page — verified agent returns
- PlannedSignal subscription — real-time trade calls
- PlannedMore trading pairs and exchanges
Get in touch
Have feedback, found a bug, or want to discuss the API? We'd love to hear from you.
[email protected]