Custodial Wallets Overview

Secure invisible wallets for NFT-focused applications

Crossmint offers two types of wallet solutions: Custodial Wallets and Smart Wallets. For an overview of both options and to find the best fit, visit our introduction page.

See it in action

See Custodial Wallets in action on the following walkthroughs: Mastercard | Unreal Engine 5

When are Custodial Wallets the best fit?

You are building NFT-focused use cases and don’t require storing cryptocurrencies.

You want to deliver the most seamless user experience.

You need control over your users’ assets.

For non-custodial wallets, see the Smart Wallets introduction.

Check the Guides

Quickstart

Create a wallet programmatically in 5 minutes.

Create Wallets

More detailed guide on how to create wallets.

Wallet Actions

Display the content, sign transactions and messages, and more.

Authenticate Users

Create wallets for your users.

Connecting the Wallet

Connect wallets other apps.

Spam Filters

Remove spam from your wallets.

Get Started

API Reference

Test any API in seconds directly from the docs.

UI Components

Launch faster by using pre-made React components

Talk to an expert

Contact our sales team for advanced support.

FAQs

If I start with custodial wallets, can I transition to smart wallets later?

Yes, you can migrate to smart wallets at any time by spinning out new wallets and batch transfering all assets via API.

If I start using Crossmint's WaaS, am I locked in?

No. You can migrate providers at any time without disrupting users, by creating new wallets with batch transfering all assets via API.

How are keys managed?

Crossmint uses MPC wallets, powered by Fireblocks key management. This is the highest tier secure custody model, which is used by financial institutions to safeguard hundreds of billions in assets. Crossmint creates a dedicated MPC wallet per user, per project.

What happens if fungible tokens are airdropped into custodial wallets

Fungible tokens airdropped into Crossmint wallets are lost. Users will not be able to see or interact with those tokens.