What is the Server Key in Bitcoin Keeper?

The Server Key is a convenience-based key hosted by Bitcoin Keeper that allows you to securely participate in a multisig wallet setup without requiring a hardware wallet for every signature. It provides a balance between usability and security, especially for day-to-day transactions.

🛠️ How It Works

• The Server Key resides on a secure, 2FA-protected signing server operated by Bitcoin Keeper.
• When included in a multisig setup, it acts as one of the participating keys required to sign transactions.
• Users can define spending policies that govern how and when the Server Key is used—for example:
  • Automatically sign transactions under a certain threshold.
  • Require manual confirmation or additional keys for higher-value transactions.

✅ Benefits

• Convenience: No need to connect a hardware device for every transaction.
• Security with Flexibility: Combined with 2FA and spending policies, it enables secure yet seamless spending.
• Redundancy: Acts as an additional signer that can help in recovery scenarios if other keys are temporarily unavailable.

⚠️ Considerations

• The Server Key should not be used as the only signer in a setup. It works best as part of a 2-of-3 or 3-of-5 policy.
• Users should still retain full control over their other keys (e.g., hardware wallets or air-gapped devices).

🔒 Summary

The Server Key is ideal for users who want secure but accessible Bitcoin self-custody. When paired with strong policies and other robust keys, it enhances the experience without compromising safety.