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Krystal Bull

Become an oracle and create Bitcoin bets

Budgeting & Finance ★ 42 stars Easy setup free

Krystal Bull allows you to become a Bitcoin oracle. An oracle allows information from the real world (financial markets, sporting events, elections, etc) to be used to create and settle Bitcoin bets. The oracle is a crucial component for Discreet Log Contracts (DLC). Without a trustworthy oracle, you cannot create a bet on Bitcoin using DLCs. Trustworthy oracles are a building block to realizing Bitcoin DeFi. To see some example oracles, please visit oracle.suredbits.com. WARNING: This version of Krystal Bull is an early alpha release for testing. It's not secure, please don't use it for anyth.

Official siteSource code

Strengths

  • Easy to set up — beginner-friendly
  • First-class Docker support for quick deployment
  • One-click install on common self-host platforms
  • Written in Scala

Is Krystal Bull secure?

OSV.dev has no published security advisories for Krystal Bull's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

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