MPC WalletWEB3 x MPC

MWMPC Wallet - Distributed Institutional Wallet Solution

Institutional wallet control without a single point of failure

A multi-party computation wallet platform that distributes signing authority, turns treasury policy into enforceable workflows, and keeps digital-asset operations traceable across networks.

Industries: Web3, Fintech, Payments
Capabilities: UI/UX Design, Software Engineering, Security Engineering, Data Engineering, Cloud and DevOps, Analytics
Scope: Custody & Treasury Operations
Solutions: Web3, Fintech, Payments, Business Automation

What We Delivered

Passkey authenticationProvide a passkey-based sign-in experience.
Distributed MPC signingSplit signing authority across independent participants.
Policy-based approvalsRoute transactions through defined approval rules.
Multi-chain asset operationsManage asset movements across supported networks.
Wallet risk controlsApply role, amount, and destination checks before signing.
Auditable transaction historyTrace requests from approval to onchain confirmation.

TL;DR — Project Summary

Keys, policy, and transaction evidence in one control plane.

The platform replaces shared keys and informal approvals with distributed signing, explicit transaction policies, and an operational record that follows every request from creation through broadcast and confirmation.

Outcomes

Signing authority distributed across independent participants
Approvals enforced from transaction and wallet policy
One traceable lifecycle across supported networks

Opportunity

Digital-asset custody is an operating model, not a key vault

Moving assets safely requires more than protecting private-key material. Teams need to control who can initiate, review, sign, recover, and reconcile a transaction while networks continue operating around the clock.

MPC Wallet send screen — Transfer receipt

The challenge

Shared hot-wallet credentials, approvals captured outside the platform, and separate tools for each network make routine treasury work difficult to govern. A compromised credential or ambiguous request can become an irreversible asset event.

The solution

A policy-led MPC wallet architecture separates transaction creation from signing authority, evaluates every request against wallet and asset rules, and preserves the evidence from human approval through on-chain confirmation.

The product experience

Every action, in context.

From understanding a holding to exploring a market, the wallet connects day-to-day asset management with clear transaction workflows.

Understand every holding

The portfolio overview connects total balance, allocation, and named accounts. Token detail adds market context and a direct path to asset movement.

Balance and portfolio allocation
Token price charts and market information
Send and receive in the asset’s context

Receive with the right context

The receiving account, wallet address, QR code, and network share one focused view, giving users the details they need to receive funds.

Scannable QR and copyable address
Named receiving account
Visible asset and network information

Review the route before swapping

Source and destination networks sit alongside the quote, slippage tolerance, estimated fees, and price impact in one review flow.

Cross-network asset selection
Exchange rate and slippage context
Estimated fees and routing details

A transfer receipt you can trace

The completed transfer view connects the amount, recipient, transaction hash, and fee status, with direct access to the block explorer.

Recipient and transaction amount
Gas sponsorship and service-fee status
Transaction hash and explorer access

Discover the connected ecosystem

The Explore experience brings dApps, prediction markets, and exchange connections into the wallet while keeping the selected account and network visible.

dApp discovery
Prediction-market access
Account and network context

See the full prediction market

Charts, outcomes, positions, market details, and resolution rules stay together. This longer screen automatically scrolls inside the phone; pause it or scroll manually to explore.

Outcome prices and market trends
Closing times, volume, and network details
Positions and resolution rules

Passkeys × MPC

Familiar access. Distributed signing.

Passkeys authenticate wallet access through device verification. MPC distributes transaction signing across independent participants, with policy checks applied before funds move.

Your passkey opens the door.

1
Create a passkey
Register with your device’s authenticator.
2
Verify it’s you
Use device biometrics or your device PIN.
3
Review before approving
Confirm the transaction details before co-signing.

Passkey authentication and MPC signing serve separate roles. A passkey is not a wallet key share; signing participants jointly produce the blockchain signature.

Review the complete transaction before signing

Approvers see the asset, destination, decoded intent, fees, policy checks, and required signers together instead of validating raw payloads across tools.

Turn treasury rules into enforceable policy

Role, amount, wallet, asset, destination, and velocity rules determine whether a request proceeds, escalates, or stops before signing.

Follow every asset movement to confirmation

One transaction record connects the request, approvals, signatures, broadcast state, network confirmations, and operational exceptions.

The Story, in Parts

One project spans multiple capabilities, so each part pairs its own challenge with the solution Stackera built.

Security Engineering
Distributed Signing Architecture
Challenge
A complete signing key held in one environment concentrates both operational and compromise risk.
Solution
MPC key shares, isolated signing services, and controlled ceremonies distribute authority without reconstructing the private key in one place.
Product Engineering
Transaction Policy & Approvals
Challenge
Wallet permissions, limits, destinations, and human approvals were difficult to apply consistently across transaction types.
Solution
A policy engine evaluates asset, amount, destination, role, and risk context before routing the request through the required approval path.
Data + Cloud Engineering
Multi-Chain Operations
Challenge
Different fee models, confirmation rules, and network states fragmented transaction monitoring and reconciliation.
Solution
Network adapters normalize transaction state, fees, confirmations, and exceptions into one operational timeline with resilient monitoring.

Results & Impact

The platform makes secure asset movement a repeatable operating workflow: signing is distributed, policy is applied before funds move, and teams retain the evidence needed to review each decision.

Operational capabilities

MPC: Distributed signing
Policy: Approval controls
Multi-chain: Asset operations
Auditable: Transaction evidence

Why It Matters

The platform makes secure asset movement a repeatable operating workflow: signing is distributed, policy is applied before funds move, and teams retain the evidence needed to review each decision.

See what a connected wallet infrastructure platform could change in your operating model.

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