Custody
Keys that never exist in one place.
Cystody secures assets with multi-party computation: a 2-of-3 threshold where private keys are never assembled in a single process. A compromised node, or a stolen API key, can't move funds alone.
How it works
One key. Many guardians. No single point.
Every signature is a collaboration between independent parties. There's no master key to steal and no single server that can be subverted into moving funds.
- 2-of-3 MPC threshold signing
- One address per chain family
- Key rotation without changing addresses
- Signing
- 2-of-3 MPC threshold
- Coverage
- ECDSA (EVM, Bitcoin) + EdDSA (Solana)
- Addresses
- HD-derived, one per chain family
- Recovery
- Reshare keys without downtime
Coverage
One address per chain family.
A single derived address serves every EVM network at once, with native support for Bitcoin and Solana. Curves and standards are handled for you.
- EVM, Bitcoin, and Solana
- ECDSA and EdDSA signing
- HD-derived, unlimited addresses
Wallets
4 networks
- Ethereum0x9f2a…c41b642,180.00USDC
- Base0x9f2a…c41b318,540.00USDC
- Solana7Bq9…Xp2K204,900.00USDC
- TronTJ9k…Lm3a910,000.00USDC
One address per chain family · HD-derived
Security
Designed so no single failure moves money.
Threshold signing is the foundation. The signer independently validates every transaction it signs, defeating attacks that bypass an application layer.
- Compromise of one signerCan't sign alone; a threshold is required
- Stolen API keyStill can't sign; the signer validates the transaction
- Chain-ID substitutionValidated against an allowlist
- Destination swap after signingDestination, value & data are validated
Custody that holds up under scrutiny.
See how threshold signing, validation, and approvals combine into a model you can put in front of an auditor.