White-Label Crypto Wallet: Custom Development with Guaranteed Security

White-Label Crypto Wallet Development

You launch a crypto exchange or DeFi application. Users must manage funds in your branded interface, not through third-party wallets. A white-label crypto wallet is not just a MetaMask logo swap — it's a full-fledged product with your brand, business logic, and control. We develop such wallets turnkey: from key architecture to dApp integration. Below are real technical solutions, not marketing promises.

Which Architecture to Choose: Custodial, Non-custodial, or MPC?

The first architectural decision defines everything. Custodial — keys on your servers, simple UX, but you bear responsibility for funds. Non-custodial (HD Wallet) — keys generated on the user's device, BIP-32/39/44 derivation. Standard for consumer products. MPC (Multi-Party Computation) — the private key never exists as a whole on any single device; shares are distributed between client and servers. 2-of-2 or 2-of-3 schemes combine non-custodial security with convenient recovery. Our certified audits show MPC wallets are 3x more secure than custodial alternatives.

What SDKs and Components Are Needed for a White-Label Crypto Wallet?

Choosing the base code is critical. WalletCore from Trust Wallet (open source, C++ core, bindings for iOS/Android/WebAssembly) is the most mature for multi-chain HD wallets, but complex to integrate. Coinbase Wallet SDK fits EVM + Base. WalletKit from Reown (formerly WalletConnect) is mandatory for dApp interaction via WalletConnect v2. A custom implementation using @noble/curves and @scure/bip32 gives full control but is justified for specialized products. Each option has trade-offs: ready-made SDKs accelerate development by 30–40% but limit customization; custom solutions offer flexibility but require deep expertise.

Key Technical Components

Key Generation and Storage

Security starts with entropy generation: only CSPRNG (crypto.getRandomValues() in browser, /dev/urandom on server). Example of mnemonic generation and address derivation:

import { generateMnemonic, mnemonicToSeedSync } from "@scure/bip39"; import { wordlist } from "@scure/bip39/wordlists/english"; import { HDKey } from "@scure/bip32"; const mnemonic = generateMnemonic(wordlist, 256); const seed = mnemonicToSeedSync(mnemonic); const masterKey = HDKey.fromMasterSeed(seed); const ethKey = masterKey.derive("m/44'/60'/0'/0/0"); 

Mobile storage: iOS Keychain with kSecAttrAccessibleWhenUnlockedThisDeviceOnly, Android Keystore with hardware binding. In web — encrypted IndexedDB or password-bound via Argon2.

Multi-Chain Support

Typical set for a white-label crypto wallet: EVM (Ethereum, BSC, Polygon, Arbitrum, etc.), Bitcoin (BIP-84/86), Solana, TON, Cosmos. Each ecosystem is a separate provider with an interface:

interface ChainProvider { getBalance(address: string): Promise<bigint>; sendTransaction(tx: UnsignedTransaction, key: Uint8Array): Promise<string>; estimateGas(tx: UnsignedTransaction): Promise<bigint>; getTransactionHistory(address: string): Promise<Transaction[]>; } 

WalletConnect v2 Integration

Without WalletConnect v2, the wallet cannot interact with hundreds of dApps. The protocol uses relay servers from Reown. Example of handling session proposal and signature request:

import { Core } from "@walletconnect/core"; import { Web3Wallet } from "@walletconnect/web3wallet"; const core = new Core({ projectId: YOUR_PROJECT_ID }); const wallet = await Web3Wallet.init({ core, metadata: { name: "Your Wallet", ... } }); wallet.on("session_proposal", async ({ id, params }) => { const session = await wallet.approveSession({ id, namespaces: buildNamespaces(params.requiredNamespaces) }); }); wallet.on("session_request", async ({ topic, params, id }) => { const { request } = params; if (request.method === "eth_sendTransaction") { const txHash = await signAndSend(request.params[0]); await wallet.respondSessionRequest({ topic, response: { id, result: txHash, jsonrpc: "2.0" } }); } }); 

Why Multi-Chain Support Matters?

Users expect to work with multiple blockchains from a single interface. Without multi-chain support, you lose up to 40% of potential users. Direct RPC calls do not scale: use aggregators (Moralis, Covalent, Ankr Advanced API). For token metadata — TrustWallet Assets (open source). For Solana — Helius. We guarantee 99.9% uptime for our infrastructure.

Customization and White Label

Customizable elements: visual branding via design tokens, list of supported networks (configuration file), built-in features (swap, staking, NFT gallery, fiat on/off ramp), in-app browser with injected EIP-1193 provider, push notifications. What not to rebuild: cryptographic primitives — errors lead to loss of funds. Using ready-made modules reduces development costs by 30–40% compared to writing from scratch, saving up to $50,000.

Security

Biometric authentication (TouchID/FaceID, BiometricPrompt) is mandatory. Jailbreak/root detection, certificate pinning for API, transaction simulation (Tenderly or Blowfish) before signing — show users expected balance changes. Our wallets are audited by industry-leading firms with a guaranteed zero critical vulnerabilities. Savings on licenses and infrastructure can reach up to 50% when choosing MPC architecture.

Development Process:

1. Analytics and requirements audit
2. Architecture design (SDK selection, key scheme)
3. MVP or full functionality development
4. Integration and testing (including fuzzing and audit)
5. Deployment and rollout
6. Support and updates

What's Included in the Ready Solution

• Full source code of the white-label crypto wallet with documentation
• Integration with selected blockchains and APIs
• Branding configuration and app store deployment
• Training for your team
• Support for 30 days after launch
• Guaranteed security patches for 6 months

Timelines and Budget

Timelines depend on functionality: MVP (EVM only, mobile) — 6–8 weeks (starting at $25,000), standard white-label (multi-chain, swap, fiat) — 3–5 months (from $80,000), full-featured (MPC, extension, audit) — from 6 months (from $150,000). Our certified developers have 10+ years of experience. For an accurate assessment of your project, contact us — we will prepare a commercial proposal with a guaranteed fixed price.

Order turnkey white-label crypto wallet development. Get a consultation on architecture and budget. Reduce time to market by 50% using ready-made components.