Build dApps That Actually Work

Custodial means your company physically holds the private keys on behalf of your users. They log in, they see balances, they move funds — but the actual cryptographic keys sit on your servers. It’s a smoother experience to ship because you control the whole flow. The catch is everything that comes with holding other people’s money: KYC and AML requirements land on your doorstep, licensing conversations start happening in jurisdictions you hadn’t thought about, and if your key management ever gets compromised, that’s your liability to absorb — not the user’s.

Non-custodial means the user generates and holds their own keys. You never touch them. The build is more involved — secure enclave storage, seed phrase flows written carefully enough that normal people actually complete them, recovery options that don’t accidentally leave a backdoor open. But you’re not a custodian. If a user loses their recovery phrase, that’s their problem. Your regulatory exposure shrinks considerably.

Most fintechs go custodial because the product ships faster and the UX is easier to control. Most crypto-native products go non-custodial because their users would accept nothing less. Which one fits your business is a legal and product question — not a technical preference. Get your lawyers and your target users in that conversation before your dev team picks an architecture.