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.

Custodial Wallet (HSM + MPC)

Non-Custodial (Privy / Alchemy)

Multi-Chain Support

Transaction Signing & Broadcasting

Portfolio Display

Hardware Wallet Integration

Get your free strategy call

View all services

Years Experience

Projects Delivered

Client Satisfaction

0/7

Support Available

150+ clients worldwide

4.9/5 rating

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.

What we deliver

Crypto Wallet Development Services We Deliver

05 capabilities

ClickMasters operates as a full-stack crypto wallet development partner — product strategy, UI/UX, engineering, cloud infrastructure, QA, and ongoing support in one delivery model.

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 choose us

Why Companies Choose ClickMasters

05 advantages

We combine architecture discipline, transparent delivery, and long-term partnership — so your investment translates into measurable business results, not just shipped code.

4-Architecture Comparison

Custodial vs Non-Custodial (EOA) vs MPC vs Embedded/Smart Wallet with key management, UX, best for | Basic: Single wallet type

Privy + Alchemy Account Kit + Dynamic.xyz

Embedded wallet SDKs social login, no seed phrase, gas sponsorship, session keys | Basic: EOA only (seed phrase barrier)

AWS CloudHSM Named

Hardware Security Module private keys never exposed in plaintext, signing inside HSM | Basic: Software-only key storage

EIP-4337 Session Keys

Smart contract wallets session keys for games/high-frequency interactions without signing each time | Basic: Sign every transaction

FATF Travel Rule Named

Compliance requirement for custodial wallets transaction monitoring, SAR filing | Basic: No compliance integration

500+

Companies served

4.9/5

Client rating

15+

Years in delivery

Our Process

How We Deliver Crypto Wallet Development

A clear, structured approach — so you always know what happens next and why.

Phase 1

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.

Week 1-2

Phase 2

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.

Week 2-4

Phase 3

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.

Week 3-6

Phase 4

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.

Week 3-5

Phase 5

Hardware Wallet Integration

Ledger/Trezor Connect SDK integration, device detection, account selection, transaction signing flow, fallback to software wallet. Deliverable: Hardware Wallet Support.

Week 4-5

Start Your Project

Technology Stack

Modern tools we use to build scalable, secure applications.

Languages

Solidity

Rust

JavaScript

Solidity

Rust

JavaScript

Solidity

Rust

JavaScript

Solidity

Rust

JavaScript

Solidity

Rust

JavaScript

Solidity

Rust

JavaScript

Solidity

Rust

JavaScript

Solidity

Rust

JavaScript

Solidity

Rust

JavaScript

Solidity

Rust

JavaScript

Frontend

React

Next.js

TypeScript

React

Next.js

TypeScript

React

Next.js

TypeScript

React

Next.js

TypeScript

React

Next.js

TypeScript

React

Next.js

TypeScript

React

Next.js

TypeScript

React

Next.js

TypeScript

React

Next.js

TypeScript

React

Next.js

TypeScript

React

Next.js

TypeScript

React

Next.js

TypeScript

React

Next.js

TypeScript

React

Next.js

TypeScript

Infrastructure

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Node.js

Docker

Industry-Specific Expertise

Deep expertise across various sectors with tailored solutions

Exchange Custodial Wallet

Consumer App Embedded Wallet

DeFi Portfolio Tracker

Institutional MPC Wallet

Pricing

Crypto Wallet Development Development Pricing

Transparent pricing tailored to your business needs