MPC Wallet & Crypto Custody Infrastructure Development
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.
Quick answer
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.
Reviewed by Shahnavaz Syed, Founder · Last updated
Overview
What mpc wallet & crypto custody infrastructure development actually involves
Every custody architecture is ultimately answering one question: what has to go wrong for funds to be lost, and how many independent things have to go wrong at once. Traditional single-key custody has an uncomfortable answer — one compromised device, one coerced or careless employee, one lost backup. Multi-signature improves this by requiring several independent signatures, but does so on-chain, with the overhead and reduced privacy that comes with visibly broadcasting a multi-party approval structure to anyone watching the chain.
MPC (multi-party computation) solves the same underlying problem differently: the private key itself never exists in one place, even momentarily. Key shares are generated and held separately, and signing happens through a cryptographic protocol where parties jointly compute a valid signature without any of them — or an attacker who compromises one of them — ever reconstructing the full key. That means a compromised share alone is insufficient to move funds, the signing process works identically across chains instead of depending on each chain's own multi-sig implementation, and none of it is visible on-chain as a distinguishable multi-party structure.
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 Hurain Technologies solves it
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
A typical deployment splits signing authority across a threshold scheme — for example, 3-of-5 — where key shares are held by geographically and organizationally distributed parties, so no single data center outage, insider, or regional compromise can either block legitimate signing or enable unauthorized signing. HSMs (hardware security modules) provide an additional hardware-backed layer protecting each individual share, so even a compromised server doesn't directly expose the share it holds.
The policy engine sits on top of the raw signing capability and is where most of the operational security actually lives day to day: transaction limits that require additional approval above a threshold, address whitelisting that blocks withdrawals to unrecognized destinations, and time-delay windows on large or unusual transactions that give a team time to catch and halt a fraudulent request before funds actually move.
Use Cases
Where mpc wallet & crypto custody infrastructure development gets used
Exchange custody infrastructure
Institutional-grade custody for exchanges holding customer funds across dozens of assets, with policy controls matched to operational withdrawal patterns.
Fund and asset manager custody
Custody architecture for funds needing SOC 2/ISO 27001-aligned controls to satisfy institutional investor and insurer due diligence.
DAO treasury management
Threshold signing for DAO treasuries that need distributed control without relying on a single trusted signer or an unwieldy on-chain multi-sig.
Corporate crypto treasury
Custody infrastructure for companies holding crypto on their balance sheet, with role-based access matching internal finance approval workflows.
Custodian-as-a-service platforms
White-label custody infrastructure for businesses that want to offer custody as a product to their own customers.
Proof
Results we've delivered
Client Result
A licensed exchange client needed institutional-grade custody for a large, growing pool of assets under management. Hurain Technologies delivered a 3-of-5 MPC setup across geographically distributed HSMs with SOC 2 audit readiness in 16 weeks.
Process
How an engagement runs
- 1
Security architecture design
Map threats and design MPC/TSS implementation.
- 2
MPC protocol implementation
Custom or vendor-based implementation based on timeline.
- 3
Policy engine & workflows
Transaction limits, approvals, and operational controls.
- 4
Security review & audit
Internal review plus independent third-party audit.
- 5
Deployment with monitoring
Production deployment with 24/7 monitoring and incident response.
Engagement Models
How we structure the work
Full custody platform build
A dedicated pod engagement designing and implementing complete MPC custody infrastructure, with milestones and delivery time agreed around chain and policy complexity.
SOC 2 / ISO 27001 readiness sprint
A focused engagement to bring an existing custody setup up to the audit-readiness standard institutional partners and insurers expect.
Policy engine and workflow configuration
A scoped engagement to design transaction limits, approval flows, and role-based access for an existing MPC deployment.
Ongoing custody operations retainer
24/7 monitoring, incident response, and operational support once the custody platform is live and holding real assets.
Pitfalls
Mistakes we see teams make
Never testing key-share recovery procedures
A disaster recovery plan that's only ever been written, not rehearsed, frequently fails at the exact moment it's actually needed.
Setting approval thresholds without operational input
Policy limits designed purely from a security standpoint, without input from the team executing withdrawals daily, often become friction people find ways around.
Concentrating key shares in one geographic region
Distributed key shares that all sit in the same data center or region reintroduce a single point of failure the MPC architecture was supposed to eliminate.
Skipping the independent security audit
Institutional partners and insurers generally won't accept a self-attested security posture — independent audit is usually a hard requirement, not optional due diligence.
Glossary
Key terms explained
- MPC (Multi-Party Computation)
- A cryptographic technique where multiple parties jointly compute a function (like a signature) over their private inputs without revealing those inputs to each other.
- TSS (Threshold Signature Scheme)
- A specific application of MPC where a valid signature can be produced by any subset of parties meeting a defined threshold, without reconstructing the full private key.
- HSM (Hardware Security Module)
- A dedicated hardware device that generates, stores, and uses cryptographic keys in a tamper-resistant environment.
- SOC 2
- An audit framework assessing a service organization's controls around security, availability, and confidentiality, commonly required by institutional counterparties.
- Threshold (m-of-n)
- A configuration where any m out of n total key shares are sufficient to sign a transaction, balancing security against operational availability.
FAQ
MPC Custody Infrastructure — frequently asked questions
What is MPC wallet technology?
How is MPC different from multi-signature wallets?
Is MPC-based custody insurable?
What happens if one key-share server goes down?
How do you decide the threshold (like 3-of-5) for our setup?
Can the policy engine enforce different rules for different transaction sizes?
Do you test disaster recovery procedures before going live?
Do you build the complete mpc custody infrastructure solution, or only integrate with what we already use?
We are not sure about our budget yet. Can you still help?
Markets We Cover
MPC Custody Infrastructure by country
Local regulatory context and delivery details for mpc custody infrastructure in each market we serve.
Live Demos
A selection of platforms we've designed and built
Real, working builds across fintech, compliance, healthcare, and commerce — the same engineering team would build your mpc custody infrastructure project.
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 demoBusiness value
What MPC Wallet & Crypto Custody Infrastructure Development does for your business
Benefits for your company
- No single point of failure. Key shares and threshold signing remove the risk of one stolen key emptying the treasury.
- Policy-controlled movement of funds. Approval workflows, limits and whitelists make internal controls auditable.
- Institutional trust. Custody designs that funds, exchanges and auditors recognise shorten due diligence.
How it can earn or save money
- Custody fees. Custody providers earn basis-point fees on assets under custody.
- Serve institutional clients. Secure infrastructure opens contracts with funds, exchanges and corporates.
- Lower insurance and loss risk. Reducing the chance of loss protects both balance sheet and reputation.
Illustrative revenue and saving lines, not guaranteed results: outcomes depend on your market, licences and execution.
How we work
How we deliver MPC Custody Infrastructure
Every mpc custody infrastructure engagement follows the same staged, quality-gated process — shaped around your requirements. You see progress every day, review it every week, and give written sign-off at every milestone before any payment is due.
- 01
Discover
Scope signed off- Token & protocol workshops
- Chain & custody selection
- Regulatory scoping
- Signed scope
- 02
Design
Threat model OK- Contract architecture
- Tokenomics & access roles
- Key management design
- Threat model
- 03
Build
Testnet accepted- Solidity / Rust sprints
- Testnet deployments
- Gas optimisation
- Demo every sprint
- 04
Secure & Test
Audit cleared- Unit, fuzz & invariant tests
- Independent audit coordination
- Audit fixes verified
- UAT on testnet
- 05
Deploy
Mainnet live- Mainnet deploy via multisig
- Contract verification
- Monitoring & alerts
- Go-live checklist
- 06
Handover
Keys transferred- Role-based sessions
- Recorded walkthroughs
- Admin & ops runbooks
- Documentation handover
- 07
Support
Monitoring live- Dedicated engineer
- SLA helpdesk
- Patches & upgrades
- Quarterly reviews
Client sign-off at every milestone — you approve the working result before you pay.
You always know what was done today — and what happens next
A written daily update, a weekly work overview and a live demo every sprint — so there are no surprises at milestone time.
Every working day
- What was completed today
- What is planned for tomorrow
- Blockers and decisions needed from you
- Links to builds you can try
Every Friday, with a live call in your business hours
- Features completed and demo recordings
- Progress against the current milestone
- Risks, open questions and change requests
- Plan and priorities for next week
End of every sprint and milestone
- Working software demonstrated live
- Your feedback captured in the backlog
- Quality-gate checklist shared
- Written sign-off before any payment
Payment plan
Pay only for work you have accepted
Milestones are customised to your requirements — six or more is typical, and delivery time is agreed around your scope. Every payment after the advance is released only after you have seen the working result and given written sign-off. Here is an example plan:
| Payment | Milestone & acceptance | Share |
|---|---|---|
| Advance | Contract signing Signed contract; protocol workshops and chain selection. | 10% |
| Milestone 1 | Architecture approved Contract architecture, tokenomics and threat model signed off. | 15% |
| Milestone 2 | Testnet v1 First contracts deployed and demonstrated on testnet. | 15% |
| Milestone 3 | Feature-complete testnet All contracts, dApp and admin flows running end to end. | 15% |
| Milestone 4 | Audit passed Independent audit done; every finding fixed and re-verified. | 15% |
| Milestone 5 | Mainnet launch Multisig mainnet deployment and contract verification. | 15% |
| Milestone 6 | Handover Monitoring, runbooks, training and documentation handed over. | 15% |
| Total | 100% | |
- Number of milestones and splits set around your scope
- Every milestone is a working, demonstrated result
- No payment is due until you sign off
Warranty & annual support
Protected after launch — warranty and annual support for your MPC Custody Infrastructure project
Go-live is where your mpc custody infrastructure product starts earning — so we stay accountable for it. Every project includes a free 90-day defect warranty. After that, the same team that built it keeps it secure, updated and running on a fixed annual fee agreed up front — no open-ended hourly billing, no surprise invoices.
Included free
90-day warranty
Any defect found in the first 90 days after go-live is fixed free of charge.
- Every delivered feature covered
- Fixes tested and deployed to production
- Same engineers who built it
Fixed-cost annual package
30% of project cost
per year for Annual Support & Maintenance, with a dedicated developer assigned to your mpc custody infrastructure platform. A fixed price, known in advance.
| Service | Included in the annual package |
|---|---|
| Dedicated developer | One named developer assigned to your product for fixes, enhancements and optimisation. |
| Bug fixes & security patches | Critical issues resolved within 24 hours; standard issues within 5 business days. |
| Upgrades & new releases | Framework, library and platform updates plus new versions of what we built, at no additional cost. |
| Helpdesk | Email and phone support for your team and administrators; 4-hour response for critical issues. |
| Backup monitoring | Daily backup checks and a quarterly restore test. |
| Security review | Periodic audit-trail review and security configuration check. |
| On-chain monitoring | Contract events, admin actions and unusual transactions watched with alerts. |
| Network & node upgrades | Hard forks, RPC and library changes tracked; contract upgrades run through the multisig. |
| Key & signing health | Signing nodes, key shares and policy engines checked every month. |
Source code & IP ownership
100% of the source code and IP is owned by you
For every custom mpc custody infrastructure project, upon full and final payment the complete source code and intellectual property are transferred to you — so you can host, maintain and enhance the system with any developer.
- Smart-contract source, tests and deployment scripts
- Contract ownership and multisig admin keys transferred to you
- Audit reports and dApp / admin source code
- Complete Git repository with full commit history
- Database schemas, migrations and seed data
- Configuration, CI/CD and deployment scripts
- API documentation and a deployment guide
No lock-in
No forced upgrades
No subscription trap
Your code lives in your own repository from the first commit.
Continuous enhancement
Launch is just the beginning — keep shipping with your own dedicated team
Your mpc custody infrastructure platform should get better every month, not stand still after go-live. Start with one dedicated developer working on your priorities across apps, dashboards and backend — and grow to a full team of developers and support members whenever your roadmap demands it.
Dedicated team, your way
From one developer to a full team
Pricing is based on the team members you need — tell us your requirements and we will quote your team.
- Start any time after launch
- Hire developers as you need them
- Scale up, scale down or pause
What your team can take on after launch
- New chains, tokens and staking features
- Approval policies and whitelists for treasury teams
- Swap, bridge and on-ramp integrations
- New contracts, tokens or chains
- dApp and admin-panel improvements
- New wallet, bridge and exchange integrations
Need more hands? Add developers and support members as your requirements grow
Start with one person and add only the roles your mpc custody infrastructure roadmap needs — each is quoted to your requirements.
Development team
Wallet & custody engineer
Extends MPC, multisig and key-management flows.
Smart-contract developer
Writes, tests and upgrades contracts in Solidity or Rust.
dApp developer
Builds the wallet-connected web interfaces for your contracts.
Backend developer
Adds the APIs, business logic and data models behind new features.
QA engineer
Writes and runs manual and automated tests before every release.
DevOps engineer
Keeps pipelines, environments and deployments fast and reliable.
Support team
L1 helpdesk support executive
First contact for your users and staff — logs, triages and resolves common issues.
L2 technical support engineer
Investigates bugs, data issues and integrations, and escalates to developers with full context.
On-chain operations support
Watches contracts, gas balances and admin transactions.
Wallet & transaction support
Helps users trace stuck, failed or mis-sent transactions.
Our Approach
Our approach to development methodologies
Our approach to custom software engineering draws on a range of methodologies, each selected to match the needs of your MPC custody infrastructure project.
Agile Scrum
Best for: Evolving products
Two-week sprints with a working demo at the end of each, so MPC custody infrastructure priorities can change as you learn from users.
Kanban
Best for: Continuous delivery & support
A visual flow of small tasks with work-in-progress limits — ideal for maintenance, integrations and post-launch improvements.
Fixed-scope (Waterfall-style)
Best for: Well-specified builds
Requirements signed off up front with a fixed timeline and price — best when scope is clear and change is unlikely.
Lean MVP
Best for: New ventures
Build the smallest MPC custody infrastructure release that proves demand, measure it with real users, then invest where the data points.
DevOps & CI/CD
Best for: Every project
Automated tests, infrastructure-as-code and push-button deployments so releases are frequent, reversible and boring.
Security-by-design (DevSecOps)
Best for: Regulated & high-value systems
Threat modelling, dependency scanning and code review built into each sprint rather than a pen test at the end.
Why we're different
What sets Hurain Technologies apart
Plenty of agencies can build MPC custody infrastructure. Here is what sets us apart for clients worldwide.
Engineering depth, not a reseller
Your MPC custody infrastructure project is designed and built by our own in-house engineers — no hidden subcontracting chain between you and the people writing code.
Built for your market, not a template
Payments, tax, language and data-protection requirements for your target market are part of the design from day one instead of retrofitted after launch.
Transparent, senior-led delivery
A named project lead, a shared backlog, fortnightly demos and direct Slack access to the engineers — you always know what is being built and why.
Cost advantage without cutting corners
Delivering from India gives clients worldwide senior engineering at a fraction of typical onshore agency rates, with the same code-review, testing and security standards.
You own everything
Source code lives in your repository from the first commit; IP, infrastructure accounts and documentation transfer to you in full.
We stay after launch
Monitoring, updates and a support SLA mean the team that built your product is the team that keeps it running.
Flexible engagement models
How we work with MPC custody infrastructure clients worldwide
Ways to work together, depending on how your team and roadmap are set up.
Dedicated Development Team
An extended team of MPC custody infrastructure engineers, QA and architects working exclusively on your product, managed day-to-day by you with our engineering leadership behind them.
Best for: Long-term products and evolving roadmaps
Fixed-Cost Delivery
A clearly scoped MPC custody infrastructure build with a defined timeline and price — ideal for a well-specified MVP, integration or launch product.
Best for: MVPs and clearly defined projects
Hybrid Engagement
Keep product and regulatory decisions close to your team while our specialists handle deep engineering remotely, with workshops or on-site visits at key milestones.
Best for: Enterprises and regulated businesses
Why businesses choose us
Why businesses choose Hurain Technologies
16+ years of engineering depth
Custom software engineering with in-house teams across web, mobile, cloud, AI, payments and blockchain.
Security-first by default
Encryption, least-privilege access, audit logs — and MPC/HSM custody and audited smart contracts where money is on-chain — designed in, not retrofitted.
Regulatory-aware architecture
Designed with your target market's regulatory direction in mind and built alongside your licensed local legal counsel.
Direct access, no layers
Direct Slack or Teams access to your development team during the build, and the same people for post-launch support.
Business benefits
What you gain
Faster time to market
An experienced MPC custody infrastructure team with proven components means your first release ships in weeks, not quarters.
Security-first architecture
Secure from day one, rather than patched after an audit or incident.
Aligned compliance groundwork
Controls, logs and data handling built around your target market's requirements so reviews go faster.
Lower total cost of ownership
Clean, documented, tested code that your own team can maintain — plus post-launch monitoring and support.
What happens next
From your MPC custody infrastructure enquiry to a working demo — in about a day
- 01Within 10 minutes
We respond to your enquiry
Send your MPC custody infrastructure enquiry by form, email or WhatsApp — a few lines is enough. Our team replies within 10 minutes, any day, any time, to set up a meeting at a time that suits you.
- 02Requirements meeting
We understand your requirements
In a focused meeting we go deep on your users, features, integrations, timeline and budget — so we build exactly what your business needs. NDAs signed on request.
- 03Within 24 hours
You see a demo of your MPC custody infrastructure
Within 24 hours of our meeting we prepare and share a demo — so you see your MPC custody infrastructure taking shape before you commit to anything.
- 04As per your budget
We share a tailored proposal
A clear proposal for your MPC custody infrastructure project with scope, milestones, team and timeline — shaped around your budget, with no hidden costs and no obligation.
Available 24×7 — three 8-hour shifts, every day
Ready to start your mpc wallet & crypto custody infrastructure development project?
Get a response within 10 minutes, a demo within 24 hours of our meeting, and a proposal as per your budget.