Web3 Development / Crypto wallet development
Crypto wallet and custody infrastructure.
Secure infrastructure for holding and moving digital assets, built into exchanges, payment platforms and apps.
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Wallet development services. Custody that holds up when real funds move through it.
Custodial wallets
Platform-managed wallets for exchanges and payment apps.
Non-custodial wallets
User-controlled wallets with smooth onboarding.
Custody infrastructure
Secure holding and movement of assets at scale.
Multi-chain support
One wallet experience across the chains you need.
Transaction flows
Deposits, withdrawals and transfers with clear status.
KYC/AML checks
Compliance built into sign-up and withdrawals.
Security review
Key handling and permissions reviewed before launch.
Wallet connection for dApps
Connect users to your contracts safely.
Monitoring & support
Visibility into wallet activity once live.
Custody work we have shipped. Wallet and custody infrastructure was part of these builds.
Need wallet or custody infrastructure?
From idea to launch. Four stages, with a working version reviewed at each one.
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Discovery
Map the wallet, the systems and data involved, and what good looks like.
Discovery notes
- Users and assets
- Custody model
- Compliance needs
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Scope & architecture
Agree the architecture, success measures and delivery milestones.
Solution design
- Wallet architecture
- Key management design
- Delivery milestones
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Build
Build against real data, with a working version reviewed at each milestone.
Working build
- Wallet built and tested
- Security reviewed
- Review at each milestone
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Ship & support
Roll out to production with monitoring and a defined support window.
Production rollout
- Launch
- Monitoring
- Defined support window
Why Avinya for crypto wallets. Custody and treasury controls designed in from the start.
Custody designed in
Custodial and non-custodial wallets with treasury controls from the first design.
Built to stay live
99.9% uptime since launch on our exchange build.
Launch-ready timelines
A centralized exchange in 20 weeks and stablecoin rails in 5, on delivered engagements.
Security before launch
Contracts audited and every finding closed before deployment.
Compliance from day one
KYC/AML and regulatory considerations are part of the architecture, not a retrofit.
Web3 and AI under one team
One studio for on-chain infrastructure and, where it helps, AI systems.
Results from builds with custody. Each number links to the engagement it came from.
Engagement models. Pick the shape that fits where you are.
Dedicated team
A dedicated team that works as an extension of yours, from first release to scale.
Project-based
A defined scope, milestones and delivery date for a specific product or workflow.
Consulting & advisory
Architecture and readiness advice before you commit to a build.
What our clients say.
“Our non-custodial wallet was built by Avinya Labs, featuring multi-chain support and deep DeFi integration. The security architecture is robust, and the UX is simple for mainstream adoption. A fantastic experience!”
“We partnered with Avinya Labs to launch our white-label crypto exchange … Their team ensured smooth integration of liquidity providers and compliance features.”
Guides on this topic. Plain answers to the questions buyers ask first.
Crypto for Beginners: Blockchain Without the Buzzwords
Why crypto feels built for developers, and the design principles that fix it.
Read the guide → GuideSmart Contracts Explained: How They Work, Uses, Risks
What smart contracts are, where businesses use them and how to keep them secure.
Read the guide → GuideHow to Choose a Web3 Development Partner: A Checklist
What to check before hiring a blockchain development company.
Read the guide →Crypto wallet FAQs.
Custodial or non-custodial?
Both. The right model depends on your product, users and regulatory position, which we assess during discovery.
Have you built custody before?
Yes. Custody was part of the centralized exchange we delivered in 20 weeks, which has held 99.9% uptime since launch.
Which chains do you work with?
We choose per use case after comparing chains, custody and infrastructure options. Our smart contract work has shipped across multiple chains.
How long does a Web3 build take?
It depends on scope. For reference, we delivered a centralized exchange in 20 weeks and stablecoin payment rails in 5. We agree milestones up front.
What decisions shape crypto wallet development?
Custody model, key recovery, supported chains and the signing experience. Crypto wallet development is mostly about protecting keys without making the wallet hard to use, and we review it against OWASP Top 10 web risks.