Wallets and custody

Wallet-as-a-service

Also called: WaaS, Wallet infrastructure

An API and dashboard that give a business wallets, deposits, payouts and key management for many customers, without running its own nodes and key storage.

Wallet-as-a-service (WaaS) providers run the hard parts of holding digital assets for a business: key storage and signing, a connection to each network, deposit detection, fee handling and payouts. The business builds its product on top through an API.

What separates providers:

  • Custody model: custodial, MPC, or keys you hold yourself.
  • Control: whether your rules or the provider's decide what's signed.
  • Networks and coins supported, and how finality is handled on each.
  • Operations: gas, sweeps, webhooks, status page, support.
  • Evidence: audits, attestations, a published list of what isn't done.

On Valtu

Valtu is wallet infrastructure for fintechs: a wallet per customer with an address on every supported network, deposits credited once final, sweeps to your treasury, a gas wallet, payouts under your own approval policies, screening with your own provider, and SDKs for TypeScript and Python. Start free on testnets: the integration guide walks through it.

Related terms

Keep reading.

Custodial walletA wallet whose keys are held by a provider on the user's behalf; the user moves funds through the provider's software and rules instead of holding keys themselves. Deposit addressAn address assigned to one customer so that anything sent to it can be credited to that customer, with no memo or reference to get wrong. PayoutSending coins from a business's wallet to someone else's address, such as a customer withdrawal, a seller payment or a contractor's pay. SweepMoving confirmed deposits from many customer addresses into one wallet the business controls, an internal move that doesn't change what the customer is owed.

More in wallets and custody: Blockchain address · Private key · Seed phrase · Self-custody · Hot wallet · Cold storage · Treasury wallet. The whole glossary.

Start free on testnetsRead the integration guide

Put it into practice.

Every workspace starts on testnets with free test coins: same dashboard, same API. Go live when your team is ready.

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