MPC Wallet & Crypto Custody Infrastructure Development in Brazil
Traditional key management concentrates risk in one place. Hurain Technologies builds MPC (multi-party computation) custody infrastructure where private keys are split across encrypted shares, so no single device or person ever holds the complete key. Designed for exchanges, funds, and DAOs that need institutional-grade security without a single point of failure. In Brazil, that means building to the technical expectations of Americas: Brazil's 2023 crypto-asset law gives the Banco Central do Brasil (BCB) direct authority to license and supervise virtual asset service providers, a significant shift from the prior unregulated environment.
Brazil Regulatory Landscape
What mpc custody infrastructure buyers in Brazil need to know
- Brazil's 2023 crypto-asset law gives the Banco Central do Brasil (BCB) direct authority to license and supervise virtual asset service providers, a significant shift from the prior unregulated environment.
- Payment institutions and Pix-participating entities are supervised by the BCB under Brazil's instant payment system rules.
- Investment-token and securities-adjacent crypto activity intersects with CVM oversight.
- We build the technical controls these frameworks expect, alongside Brazil-qualified legal and compliance counsel.
This information is provided for general orientation only and is not legal or licensing advice. Always confirm current requirements with qualified local counsel.
The Challenge
Problems we see teams struggling with
Single point of failure risk
One compromised device or person with access to the full private key can drain funds.
On-chain multi-sig overhead
Traditional multi-signature wallets create blockchain overhead and reduced privacy.
Cross-chain custody complexity
Building custody per blockchain instead of one unified architecture wastes engineering effort.
Institutional audit readiness
Custody setups must meet SOC 2 and ISO 27001 standards, which traditional key storage rarely does.
Operational bottlenecks from over-restrictive approval flows
Custody controls designed without input from the operations team that uses them daily often become so restrictive they get worked around, which defeats their purpose.
Disaster recovery gaps
Key-share backup and recovery procedures that haven't been tested leave a fund or exchange unable to access its own custody in a genuine emergency.
Our Approach
How we deliver mpc custody infrastructure in Brazil
MPC/TSS signing
Transactions signed collaboratively without ever reconstructing the full key.
No single point of failure
Key shares distributed across parties and HSMs so one breach cannot compromise custody.
Policy engine
Transaction limits, whitelists, and multi-step approvals enforced automatically.
Role-based access
Granular permissions so team members have exactly the access their role requires.
Multi-chain support
One custody architecture works across Bitcoin, Ethereum, Solana, and other major chains.
Audit logging
Full, tamper-evident logs of every signing event for compliance review.
Tested disaster recovery procedures
Key-share backup and recovery processes designed and rehearsed before they're needed, not documented once and never verified.
Technology
Tech stack we work with
Cryptography
Infrastructure
Compliance
Monitoring
FAQ
MPC Custody Infrastructure in Brazil — FAQ
Live Demos
A selection of platforms we've designed and built
For reference — real, working builds across fintech, compliance, healthcare, and commerce.
Nexa
SaaS-style product dashboard and workflow UI for a fintech platform.
Open live demoAML Compliance Suite
Anti-money-laundering compliance and case-monitoring suite.
Open live demoDebt Management
Debt management and collections tracking platform.
Open live demoUMARSOB Data
Android VTU/data-reseller platform with wallet, agent/referral system, and admin panel.
Open live demoHospital Management
Hospital/clinic management system covering patient records, appointments, staff, and billing.
Open live demoDMI CHW App
Offline-first Community Health Worker counseling app with a central management platform, built for an NGO client.
Open live demoHomemakers Pro
Enterprise operations system for a domestic staffing agency covering bookings, staff, and client management.
Open live demoE-Commerce (Multi-Locale)
E-commerce storefront demo with multi-language, locale-based support.
Open live demoMars
Legal web application prototype.
Open live demoReady to bring mpc wallet & crypto custody infrastructure development to Brazil?
Book a discovery call and get a scoped technical estimate within 5 business days.