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New projects
A paragraph about the problem is enough to start. We reply within two working days, usually with questions rather than a quote.
Web3 · Service Crypto wallet development
Custodial, non-custodial and smart wallets with passkey sign-in, MPC or multisig security, multi-chain support, swaps and recovery that works.
In short
A crypto wallet lets a user hold digital assets and approve transactions. In a custodial wallet a company holds the keys; in a non-custodial wallet the user does; a smart wallet is a contract account that adds rules such as spending limits, sponsored fees and recovery. We build all three, in apps and browsers, with security and recovery designed first.
- How to engage
- Product build, Security review
- Practice
- Web3
Signs this is the right service
- Your product needs users to hold, send or receive crypto.
- Seed phrases are losing you users at sign-up.
- You need institutional controls: approvals, limits and audit trails.
- Users must use more than one blockchain without switching apps.
What you get
Custody model
Custodial, non-custodial, smart account or MPC — chosen against your regulation, users and support load, and written down.
Sign-in and recovery
Passkeys or social sign-in instead of seed phrases, with a second recovery route tested before launch.
Multi-chain support
Balances, transfers and transaction history across the networks you need, from one interface.
Swaps and on-ramps
Token swaps and fiat on and off ramps integrated inside the wallet.
Security
Secure key storage, transaction simulation before signing, address checks and a security review of the whole flow.
The process
- 01
Choose the custody model
The decision that shapes everything else, made first and documented.
- 02
Design the risky moments
Sign-up, sending to a new address and recovery designed and tested with real users.
- 03
Build and secure
App, contracts and backend built together, then reviewed adversarially.
- 04
Launch with limits
Transaction and sponsorship limits in place before real funds move.
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Crypto wallet development: common questions
Custodial or non-custodial?
- Custodial wallets are easier for users but make you responsible for their funds, usually with licensing implications. Non-custodial and smart wallets keep users in control. We help you choose based on your market and users.
Can users sign in without a seed phrase?
- Yes. With smart accounts and passkeys users sign in with their device, and recovery uses a second credential or trusted guardians.
Which chains can it support?
- Ethereum and EVM-compatible networks including layer-2 rollups, plus other chains where the project needs them.
Do you build mobile and browser wallets?
- Yes — mobile apps, browser extensions and wallets embedded inside your existing product.
06 / Let’s build
Bring us the difficult problem.
02
Careers
Engineers, designers and researchers who like systems that are hard to get right. Send something you built and what you would change about it now.
03
Studio
Based in India and working remotely, with overlap hours agreed up front so your team always has a time to reach us.
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Read
Guides on AI agents, RAG, MCP, tokenization and chain abstraction, written by the engineers who build them.