> ## Documentation Index
> Fetch the complete documentation index at: https://magicblock-42-dhruvja-docs-navigation-restructure.mintlify.site/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.

<Warning>
  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.
</Warning>

<CardGroup cols={2}>
  <Card title="View Repository" icon="github" href="https://github.com/magicblock-labs/magicblock-engine-examples/tree/main/binary-prediction/anchor" iconType="duotone">
    Build, test, and run the Anchor program and client.
  </Card>

  <Card title="Protocol Architecture" icon="diagram-project" href="/pages/solutions/prediction-markets" iconType="duotone">
    Place this example in a complete prediction-market or trading architecture.
  </Card>
</CardGroup>

## 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

<CardGroup cols={2}>
  <Card title="SPL Token Custody" icon="coins" href="/pages/ephemeral-spl-token/smart-contract-integration" iconType="duotone">
    Understand eATA custody and post-commit payout alternatives.
  </Card>

  <Card title="Pricing Oracle" icon="waveform" href="/pages/tools/oracle/implementation" iconType="duotone">
    Validate feed identity, freshness, and price data in your program.
  </Card>

  <Card title="Session Keys" icon="key" href="/pages/tools/session-keys/security" iconType="duotone">
    Scope repeated trading actions and review the security boundaries.
  </Card>

  <Card title="Cranks" icon="clock" href="/pages/tools/crank/implementation" iconType="duotone">
    Extend manual settlement with scheduled expiry checks.
  </Card>
</CardGroup>