Documentation Index
Fetch the complete documentation index at: https://docs.beaconcha.in/llms.txt
Use this file to discover all available pages before exploring further.
Overview
The beaconcha.in API provides some data indexed by epoch. To better understand the relationship between time and epochs, you can use the Slot Finder tool and the time constants provided below.Ethereum Time Constants
| Constant | Value | Description |
|---|---|---|
| Genesis Timestamp | 1606824023 | December 1, 2020, 12:00:23 UTC |
| Seconds per Slot | 12 | Time between slots |
| Slots per Epoch | 32 | Slots in one epoch |
| Seconds per Epoch | 384 | 32 × 12 seconds |
| Epochs per Day | 225 | 86,400 / 384 |
| Epochs per Year | ~82,125 | 365 × 225 |
Related Resources
- Introduction — Overview and endpoint comparison
- Custom Range Rewards — Calculate rewards for any date range
- Tax Year Calculations — Calculate rewards for specific tax years

