{"head":{"title":"How to Build a Crypto Wallet | OceanLab","description":"How to build a crypto wallet or custody platform: key management, MPC, approvals, multi-chain support, travel rule, screening, compliance and cost drivers.","canonical":"https://oceanlab.in/build/crypto-wallet"},"slug":"crypto-wallet","featured":[{"meta":{"slug":"novawallet","industry":"web3","projectType":"Self-custody mobile wallet","country":"sg","tags":["wallet","web3","fintech","mobile"],"compliances":["MAS-TRM","AML/KYC","ISO 27001"],"cover":{"src":"/novawallet-1.png","width":1250,"height":844}},"text":{"en":{"title":"NovaWallet - Multi-Chain Self-Custody Mobile Wallet","description":"Built an iOS and Android self-custody wallet supporting BTC, ETH, LTC, XRP and AVAX with one-tap send, receive and swap, plus a clean activity feed - shipped from clickable AI prototype to App Store in 8 weeks.","category":"Web3 / Wallet","client":"NovaWallet"}}},{"meta":{"slug":"riegel","industry":"web3","projectType":"Institutional MPC custody","country":"de","tags":["web3","wallet","fintech","enterprise"],"compliances":["KWG","MiCA","Transfer of Funds Regulation (travel rule)","GwG","DORA","GDPR","ISAE 3402 / SOC 1","ISAE 3000 / SOC 2","FIPS 140-2 / 140-3 Level 3"],"cover":{"src":"/case-studies/riegel/01-home.png","width":1440,"height":1000}},"text":{"en":{"title":"Riegel - Institutional MPC Custody Platform with Quorum Approvals and Client Policies","description":"Designed and built a clickable client console for a German crypto custodian's MPC custody platform: institutions see their vaults and holdings, follow every transaction from request to final confirmation, approve with a security key against a quorum per approver group, and test their own first-match withdrawal policy before it goes live.","category":"Web3 / Institutional Custody","client":"Hochwarth Verwahrung"}}},{"meta":{"slug":"bollard","industry":"defi","projectType":"Staking dashboard","country":"sg","tags":["defi","web3","fintech","enterprise"],"compliances":["Payment Services Act 2019","FSMA 2022 (DTSP regime)","SFA investor classes","MAS Notice PSN02","Travel rule","MAS TRM Guidelines","PDPA 2012","EIP-3076"],"cover":{"src":"/case-studies/bollard/01-home.png","width":1440,"height":1000}},"text":{"en":{"title":"Bollard - Institutional Staking Dashboard for Validators, Rewards and Approvals","description":"Designed and built a clickable client dashboard for a Singapore staking provider serving funds, family offices and corporate treasuries: positions across six chains, daily rewards split by type with SGD and USD values at receipt, unbonding dates per chain, and an approvals inbox that applies each institution's policy before stake moves.","category":"Crypto & DeFi / Staking Dashboard","client":"Kallang Vale Digital"}}},{"meta":{"slug":"chainflow","industry":"defi","projectType":"DeFi lending, borrowing & swap console","country":"ae","tags":["defi","web3","fintech","ai"],"compliances":["UAE VARA","AML/KYC","ISO 27001"],"cover":{"src":"/chainflow-1.png","width":1440,"height":1248}},"text":{"en":{"title":"ChainFlow - On-Chain Lending, Borrowing and Swap Console from Prototype to Production","description":"Unified supply, borrow, swap, vault staking and portfolio analytics into a single multi-chain console - shipped from clickable AI prototype to production in 8 weeks.","category":"DeFi / Web3","client":"ChainFlow"}}},{"meta":{"slug":"levada","industry":"defi","projectType":"DEX aggregator","country":"pt","tags":["defi","web3","fintech"],"compliances":["MiCA","EU sanctions","OFAC SDN","GDPR"],"cover":{"src":"/case-studies/levada/01-home.png","width":1440,"height":1000}},"text":{"en":{"title":"Levada - Non-Custodial DEX Aggregator with Split Routing and an Ops Console","description":"Designed and built a clickable non-custodial DEX aggregator for a Lisbon DeFi team: a swap app that splits trades across liquidity sources and shows every fee before the user signs, gasless limit orders, wallet history with approval revoking, transaction status, and an ops console that watches chain health, quote quality and failure clusters.","category":"Crypto & DeFi / DEX Aggregator","client":"Maré Alta Labs"}}}]}