Crypto Wallet Development Services
ClickMasters builds crypto wallet solutions for B2B companies across the USA, Europe, Canada, and Australia. Custodial wallets for exchanges and financial platforms secure key management with HSM and MPC. Non-custodial embedded wallets using Privy or Alchemy Account Kit users own their keys without seed phrase friction. Multi-chain support Ethereum, Polygon, BNB Chain, Solana, Bitcoin. Transaction signing and broadcasting. Portfolio balance displays. Hardware wallet integration.
Years Experience
Projects Delivered
Client Satisfaction
Support Available
Wallet Architecture Comparison Custodial vs Non-Custodial vs MPC vs Embedded
- Custodial: Key Management Platform controls private keys. User trusts the platform. User Experience Simplest UX just a username/password. No seed phrases. Best For Exchanges, neobanks, corporate treasury management where regulation requires custody controls.
- Non-Custodial (EOA): Key Management User controls private key / seed phrase. Platform has no access. User Experience User manages seed phrase. Self-custody, full ownership, full responsibility. Best For DApps, DeFi protocols where user self-custody is a core product value.
- Non-Custodial (MPC): Key Management Private key split between user and platform neither holds the complete key. User Experience No seed phrase needed. Users can recover access. Platform cannot unilaterally move funds. Best For Institutional wallets, fintech apps, enterprise blockchain use cases requiring recovery options.
- Embedded / Smart Wallet: Key Management EIP-4337 smart contract wallet key management via social login or MPC. User Experience Social login (email/Google). No seed phrase. Sponsored gas. Batch transactions. Best For Consumer apps, gaming, NFT platforms where crypto-native UX is a barrier to adoption.
MPC for Wallet Key Management
MPC (Multi-Party Computation) is a cryptographic technique that allows multiple parties to jointly compute a function (in this case, a digital signature) without any party revealing their input (their key share) to the others. In wallet key management: the user's private key is mathematically split into multiple shares, distributed between the user's device, the platform's server, and optionally a third backup. To sign a transaction, a threshold number of shares (typically 2-of-3) must participate in a distributed signing ceremony the complete private key is never reconstructed in any single location. Advantages over HSM-only custody: no single point of compromise (an attacker who compromises the server does not have the complete key), user recovery (if the user loses their device, the remaining shares can be used to generate a new key share), and better UX than seed phrases (no 24-word phrase to manage). Privy, Dynamic.xyz, and Fireblocks all use MPC for non-custodial or semi-custodial wallet key management.
Crypto Wallet Development Services We Deliver
ClickMasters operates as a full-stack crypto wallet development partner. Our team handles every layer of the software delivery lifecycle — product strategy, UI/UX design, backend engineering, cloud infrastructure, QA, and ongoing support.
Custodial Wallet Backend
Custodial wallet infrastructure for exchanges and financial platforms: HSM key management (Hardware Security Module private keys never exposed in plaintext, signing happens inside the HSM AWS CloudHSM or Thales Luna HSM for institutional-grade key security), MPC (Multi-Party Computation private key split between multiple parties using threshold signature schemes, no single party holds the complete key, k-of-n threshold required for signing), transaction approval workflows (multi-signature approval for large transactions, time delays for unusual patterns, fraud detection integration), regulatory compliance (KYC/AML integration, travel rule compliance for transfers above thresholds, transaction monitoring, SAR filing process).
Non-Custodial Embedded Wallet
Embedded wallet infrastructure using managed SDK solutions: Privy (embedded wallet SDK email, social, or SMS login generates a non-custodial wallet, MPC-based key storage, no seed phrase for the user, supports EVM chains and Solana), Alchemy Account Kit (EIP-4337 smart contract wallets social login creates a smart wallet, gas sponsorship via Alchemy's paymaster, session keys, batch transactions), Dynamic.xyz (multi-chain embedded wallets with authentication combines traditional auth with Web3 wallet creation), integration pattern (embedded wallets created transparently when the user signs up users who are not crypto-native never see blockchain complexity).
Multi-Chain Wallet Support
Wallet functionality across multiple blockchain networks: EVM chains (Ethereum, Polygon, BNB Chain, Avalanche, Base, Arbitrum, Optimism single key pair works across all EVM chains), Solana (separate key pair, different address format, @solana/web3.js for Solana interactions), Bitcoin (UTXO model, different address formats P2PKH, P2SH, P2WPKH bitcoinjs-lib or bitcoin-core RPC), chain detection (display correct network, warn on wrong network, support chain switching), cross-chain portfolio (aggregate balances across all supported chains in unified portfolio view).
Transaction Management
Production transaction infrastructure: nonce management (track the nonce for each wallet address, increment correctly for sequential transactions, recover from nonce gaps after failed transactions), gas price estimation (use EIP-1559 base fee + priority fee estimation `eth_feeHistory` API for accurate gas pricing, configurable max fee and max priority fee), transaction broadcasting (submit transaction to the network via Alchemy or Infura, return transaction hash immediately, track confirmation status via WebSocket subscription or polling), transaction history (index historical transactions via Alchemy Transfers API or Etherscan API display full transaction history with token transfers, gas paid, and status).
Hardware Wallet Integration
Hardware wallet support for high-security users: Ledger (Ledger Live SDK detect device, connect via USB or Bluetooth, prompt for account selection, sign transaction with device), Trezor (Connect SDK web-based and mobile integration, transaction signing flow, device detection), integration pattern (application detects if user has a hardware wallet, offers option to connect instead of software wallet, routes signing requests through device).
Why Companies Choose ClickMasters
Custodial vs Non-Custodial (EOA) vs MPC vs Embedded/Smart Wallet with key management, UX, best for
Basic: Single wallet type
Embedded wallet SDKs social login, no seed phrase, gas sponsorship, session keys
Basic: EOA only (seed phrase barrier)
Hardware Security Module private keys never exposed in plaintext, signing inside HSM
Basic: Software-only key storage
Smart contract wallets session keys for games/high-frequency interactions without signing each time
Basic: Sign every transaction
Compliance requirement for custodial wallets transaction monitoring, SAR filing
Basic: No compliance integration
Our Crypto Wallet Development Process
A proven methodology that transforms your vision into reality
Wallet Architecture Design
Custody model decision (custodial vs non-custodial vs MPC), key management approach (HSM vs MPC vs software), compliance requirements (KYC/AML, Travel Rule), technical specification. Deliverable: Wallet Architecture + Compliance Plan.
Embedded Wallet Integration
Privy/Alchemy Account Kit SDK integration, social login setup, wallet creation on user sign-up, multi-chain support (EVM + Solana), portfolio display. Deliverable: Embedded Wallet + Portfolio UI.
Custodial Backend Development
HSM (AWS CloudHSM) configuration, MPC threshold signature setup, transaction approval workflows (multi-sig), KYC/AML integration (Onfido/Chainalysis), transaction monitoring. Deliverable: Custodial Wallet Backend + Compliance.
Transaction Management
Nonce management (tracking, gap recovery), gas price estimation (EIP-1559), transaction broadcasting, WebSocket confirmation tracking, transaction history indexing (Alchemy Transfers API). Deliverable: Transaction Pipeline + History.
Hardware Wallet Integration
Ledger/Trezor Connect SDK integration, device detection, account selection, transaction signing flow, fallback to software wallet. Deliverable: Hardware Wallet Support.
Technology Stack
Modern tools we use to build scalable, secure applications.
Languages
Frontend
Infrastructure
Industry-Specific Expertise
Deep expertise across various sectors with tailored solutions
Exchange Custodial Wallet
Consumer App Embedded Wallet
DeFi Portfolio Tracker
Institutional MPC Wallet
Crypto Wallet Development Development Pricing
Transparent pricing tailored to your business needs
Wallet Architecture Design
Perfect for businesses that need wallet architecture design solutions
Package Includes:
- Timeline: 1 - 2 weeks
- Best For: Custody model, key management approach, compliance requirements, technical spec
- Dedicated Project Manager
- Quality Assurance Testing
- Documentation & Training
Embedded Wallet (Privy/Alchemy)
Perfect for businesses that need embedded wallet (privy/alchemy) solutions
Package Includes:
- Timeline: 3 - 6 weeks
- Best For: SDK integration, social login, multi-chain, portfolio display, transaction history
- Dedicated Project Manager
- Quality Assurance Testing
- Documentation & Training
Custodial Wallet Backend
Perfect for businesses that need custodial wallet backend solutions
Package Includes:
- Timeline: 5 - 10 weeks
- Best For: HSM/MPC key management, approval workflows, transaction monitoring
- Dedicated Project Manager
- Quality Assurance Testing
- Documentation & Training
Multi-Chain Portfolio Display
Perfect for businesses that need multi-chain portfolio display solutions
Package Includes:
- Timeline: 2 - 4 weeks
- Best For: Balance aggregation, transaction history, token prices, chain switching
- Dedicated Project Manager
- Quality Assurance Testing
- Documentation & Training
Transaction Management
Perfect for businesses that need transaction management solutions
Package Includes:
- Timeline: 2 - 4 weeks
- Best For: Nonce management, EIP-1559 gas, broadcasting, status tracking
- Dedicated Project Manager
- Quality Assurance Testing
- Documentation & Training
Hardware Wallet Integration
Perfect for businesses that need hardware wallet integration solutions
Package Includes:
- Timeline: 2 - 3 weeks
- Best For: Ledger + Trezor connect, transaction signing flow, device detection
- Dedicated Project Manager
- Quality Assurance Testing
- Documentation & Training
Full Wallet Platform
Perfect for businesses that need full wallet platform solutions
Package Includes:
- Timeline: 6 - 12 weeks
- Best For: Custodial + embedded + multi-chain + compliance + mobile app
- Dedicated Project Manager
- Quality Assurance Testing
- Documentation & Training
* All prices are estimates and may vary based on specific requirements. Contact us for a detailed quote.
CEO Vision
To build scalable, intelligent custom software development solutions that empower businesses to grow, automate, and transform in a digital-first world.
We are not building software. We are architecting the infrastructure of tomorrow — systems that think, adapt, and grow alongside the businesses they power. Our mission is to make cutting-edge technology accessible to every ambitious team on the planet.
Amjad Khan
CEO
12+
Years
300+
Projects
98%
Retention
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