Wallet & Custody Solutions
We build secure digital asset wallet and custody infrastructure for exchanges, fintechs, and institutions. From consumer-friendly mobile wallets to institutional MPC custody with policy engines, our wallet solutions handle key management, transaction signing, gas abstraction, and multi-chain support with bank-grade security.
What is Wallet & Custody Solutions?
Wallet and custody solutions provide secure storage and management of digital assets using MPC (multi-party computation) key management, hardware security modules, and account abstraction. They support institutional-grade governance with configurable approval workflows, spending limits, and multi-level authorization while enabling mainstream-friendly UX through gasless transactions and social recovery.
Engineering Targets
Figures below are the benchmarks we design and test against on this type of build. They are targets, not a warranty — what your platform actually achieves depends on your data, scale and integration surface, and we agree the numbers that matter with you before work starts.
Why This Matters
Custody is where a virtual asset business is judged. Supervisors look at key generation, segregation of duties, withdrawal approval and recovery testing, and they expect evidence rather than assurances. We build the wallet infrastructure and the operational controls together, because a strong key scheme with weak approval workflow still loses funds.
What You Get
Capabilities
MPC Wallets
Threshold signature schemes that eliminate single points of failure — no single party ever holds the complete private key.
Account Abstraction
Gasless transactions, session keys, and social recovery using ERC-4337 smart accounts for mainstream-friendly UX.
Policy Engine
Configurable approval workflows — whitelist addresses, spending limits, time locks, and multi-level authorization for institutional governance.
Our Approach
How We Deliver
Threat Model First
We define who could steal what, then design key handling around those paths.
Separate Duties
Initiation, approval and signing sit with different people, systems and network zones.
Rehearse Recovery
Key ceremonies and recovery drills are documented and tested before any client funds arrive.
Evidence By Default
Logging and reporting are designed for the auditor, not retrofitted at inspection time.
Real-World Applications
Use Cases
Technology Stack
Explore More
Related Services
Crypto Exchange Development
Full-stack crypto exchange platforms with on-ramp/off-ramp, order matching, and fiat gateways.
- Fiat on-ramp/off-ramp (bank, card, mobile money)
- High-performance order matching engine (<50ms)
- Multi-currency hot & cold wallet management
Real World Asset (RWA) Tokenization
Tokenize real estate, commodities, bonds, and private equity on-chain with regulatory compliance.
- Asset onboarding and legal structuring
- ERC-3643 / ERC-1400 security token standards
- Fractional ownership and dividend distribution
Digital Bond & Securities Platforms
Regulated digital bond issuance, investor portals, and automated coupon distribution on blockchain.
- Digital bond issuance and primary distribution
- Automated coupon and dividend payments
- Maturity management and redemption workflows
Common Questions
Frequently Asked Questions
What industries benefit from blockchain technology?
Finance (DeFi, payments), supply chain (provenance tracking), healthcare (data sharing), real estate (tokenization), gaming (NFTs), and government (identity). Masarrati builds production blockchain systems for all these sectors.
How secure are blockchain applications?
Blockchain is inherently secure through cryptography and decentralization. However, smart contract vulnerabilities exist. Masarrati conducts formal verification, security audits, and penetration testing on all blockchain deployments.
What is the cost of building a crypto exchange?
A production crypto exchange typically costs $200K-$1M+ depending on features, compliance requirements, and jurisdictions supported. Masarrati has built exchanges handling millions in daily volume with full regulatory compliance.
How long does smart contract development take?
Simple contracts take 2-4 weeks. Complex DeFi protocols or tokenization platforms require 2-4 months including auditing. Masarrati follows a develop-audit-deploy cycle with third-party security reviews.
Do you support multiple blockchain networks?
Yes. Masarrati builds on Ethereum, Polygon, Solana, Binance Smart Chain, Hyperledger, and other networks. We help you choose the right chain based on speed, cost, security, and regulatory requirements.
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