Can you support a BCB-regulated virtual asset service provider in São Paulo?

Yes, we build the technical infrastructure and AML/KYC controls commonly expected under Brazil's BCB crypto-asset oversight regime.

Can you build infrastructure aligned with BCB's new VASP licensing regime?

Yes, we build the custody, reporting, and audit-logging infrastructure commonly expected under BCB's 2023 crypto-asset licensing framework.

What is MPC wallet technology?

MPC splits a private key into encrypted shares held separately, so transactions can be signed without ever reconstructing the full key in one place.

How is MPC different from multi-signature wallets?

MPC signs off-chain using threshold cryptography and works across all chains uniformly; multi-sig requires on-chain signatures and is chain-dependent.

Is MPC-based custody insurable?

Yes, many institutional insurers now offer coverage for MPC setups that meet defined operational and security controls.

What happens if one key-share server goes down?

As long as the threshold number of remaining shares are available, signing continues uninterrupted — this redundancy is one of MPC's core advantages.

Blockchain & Crypto · São Paulo

MPC Wallet & Crypto Custody Infrastructure Development in São Paulo

Q: Do you support Pix integration for Brazilian payment platforms?

Yes, we integrate Pix alongside card and wallet payment methods within a unified orchestration and reconciliation layer.

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 São Paulo, that means building to the technical expectations of the local market.

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São Paulo Market Landscape

Why mpc custody infrastructure is critical in São Paulo

São Paulo hosts the B3 stock exchange and the largest concentration of fintech unicorns and scale-ups in Latin America.
Brazil's Pix instant-payment system has driven exceptional real-time transaction volume, raising the bar for fraud detection and settlement infrastructure.
São Paulo-based crypto businesses now operate under Brazil's 2023 crypto-asset law, giving the BCB direct oversight of virtual asset service providers.

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 São Paulo

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

MPC protocolsThreshold Signature SchemesHSM integration

Infrastructure

Geographically distributed key sharesCold/warm/hot wallet orchestrationDisaster recovery

Compliance

SOC 2 controlsISO 27001 alignmentAudit logging

Monitoring

Real-time alertingAnomaly detectionIncident response

FAQ

MPC Custody Infrastructure in São Paulo — FAQ

Yes, we integrate Pix and other Brazilian payment rails alongside card and wallet payment methods within a unified orchestration layer.

Live Demos

A selection of platforms we've designed and built

For reference — real, working builds across fintech, compliance, healthcare, and commerce.

nexa-demo-jade.vercel.app

Fintech

Nexa

SaaS-style product dashboard and workflow UI for a fintech platform.

Open live demo

aml-compliance-suite.vercel.app

Compliance

AML Compliance Suite

Anti-money-laundering compliance and case-monitoring suite.

Open live demo

debtmanagement-two.vercel.app

Fintech

Debt Management

Debt management and collections tracking platform.

Open live demo

umarsob.vercel.app

Payments

UMARSOB Data

Android VTU/data-reseller platform with wallet, agent/referral system, and admin panel.

Open live demo

hospitalmangement-bay.vercel.app

Healthcare

Hospital Management

Hospital/clinic management system covering patient records, appointments, staff, and billing.

Open live demo

dmi-chw-app.vercel.app

Healthcare

DMI CHW App

Offline-first Community Health Worker counseling app with a central management platform, built for an NGO client.

Open live demo

homemakers-seven.vercel.app

Operations

Homemakers Pro

Enterprise operations system for a domestic staffing agency covering bookings, staff, and client management.

Open live demo

e-commerce-mu-one-39.vercel.app/nl-NL

E-Commerce

E-Commerce (Multi-Locale)

E-commerce storefront demo with multi-language, locale-based support.

Open live demo

mars-js.vercel.app

Legal

Mars

Legal web application prototype.

Open live demo

Ready to bring mpc wallet & crypto custody infrastructure development to São Paulo?

Book a discovery call and get a scoped technical estimate within 5 business days.

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