> ## Documentation Index
> Fetch the complete documentation index at: https://docs.magicblock.gg/llms.txt
> Use this file to discover all available pages before exploring further.
# Binary Prediction
> Build an up/down prediction flow with session-authorized bets, SPL token custody, real-time oracle prices, and Ephemeral Rollup settlement.
The Binary Prediction example lets a user stake SPL tokens on an up/down price move. It reads a
MagicBlock pricing-oracle feed on the ER, snapshots the entry price, and settles after the bet expires.
This is an integration example, not a production risk engine. The pool acts as the counterparty
without hedging its exposure and uses deliberately simple liquidity accounting.
Try the live binary prediction application.
Build, test, and run the Anchor program and client.
Place this example in a complete prediction-market or trading architecture.
Learn how the example combines Ephemeral Rollups, SPL tokens, session keys, and live prices.
## What the example demonstrates
* **Session-authorized execution:** place bets without repeated wallet prompts after setup.
* **SPL-token custody:** stake and pool liquidity move through delegated eATAs.
* **Real-time pricing:** opening and settlement prices come from the same configured oracle feed.
* **Expiry settlement:** wins pay the configured multiplier, ties refund, and losses remain in the pool.
## Recommended next steps
Understand eATA custody and post-commit payout alternatives.
Validate feed identity, freshness, and price data in your program.
Scope repeated trading actions and review the security boundaries.
Extend manual settlement with scheduled expiry checks.