Why Wallet-as-a-Service Appeals to Traditional Applications
The core driver for traditional apps to integrate Wallet-as-a-Service (WaaS) is not tech novelty, but a solid business case: building a wallet infrastructure from scratch is expensive, time-consuming, and fraught with compliance risks. With WaaS, it becomes a matter of calling a few API endpoints.
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Building a wallet from scratch doesn't add up
When a traditional app (e.g., an e-commerce platform, game, or cross-border payment service) wants users to hold crypto assets, it faces several walls:
Technology wall. Building a wallet is not just about coding a front end. You need to manage private keys — the most fragile link. Private key management involves cryptography, HSM hardware, signing services, and node operations. Each new chain requires a separate node connection, and each chain has different gas mechanisms, address formats, and transaction structures. One practitioner noted that developing an in-house wallet requires years of engineering effort and massive capital.
Security wall. If the private keys are compromised, the liability rests with you. You need a Key Management System (KMS), hot/cold wallet tiering, security audits, and risk-control systems — all requiring a dedicated security team.
Compliance wall. Crypto business faces regulatory requirements such as KYC, AML, and the Travel Rule by default. Building compliance modules yourself means understanding rules across jurisdictions from scratch.
Time wall. After doing all the above, your product might launch a year or two later. The market won't wait.
WaaS breaks down these walls into API calls
The essence of WaaS: third-party providers package the underlying wallet capabilities into APIs and SDKs. By calling these interfaces, businesses can generate wallets, manage assets, and initiate transactions directly within their own applications.
Specifically, WaaS provides capabilities including:
Wallet creation: Generate wallet addresses in bulk with a few lines of code. Users don't need to back up seed phrases.
Key management: Use MPC (Multi-Party Computation) and other technologies to distribute private key shards, eliminating single points of failure.
Multi-chain support: One API connects to Ethereum, Solana, Polygon, and other chains.
Compliance tools: Built-in KYC, AML, and transaction risk monitoring.
User authentication: Bind wallets to email or phone numbers, lowering the barrier to Web3.
Northwestern University professor Aleksandar Kuzmanovic commented in an interview that WaaS effectively shortens the distance between blockchain technology and ordinary users, allowing users to ignore technical details, even unaware they are using a blockchain.
The business value traditional apps see
Case A – Cross-border payment / E-commerce apps
The core pain point here: traditional payment channels are slow, expensive, and opaque. WaaS allows businesses to embed stablecoin payment rails directly in their apps. Users can pay with USDC/USDT, and funds settle cross-border via blockchain, bypassing SWIFT and correspondent banks.
Stripe is already doing this with the Bridge API — businesses can receive funds into stablecoin accounts, issue payment cards, and convert to fiat, with many operations circumventing traditional banking systems.
Case B – Gaming / Social / Consumer apps
These need to lower user friction. Traditional wallets require users to copy seed phrases and install browser extensions, leading to extremely low conversion rates. WaaS offers an experience where "logging in with email generates a wallet." Users may not know they have a private key; assets are partially or fully custodied by the app.
Cregis reports serving over 4,000 enterprise clients, securing more than $60 billion in assets with zero security incidents since 2017. Such data reassures traditional businesses that "this has been done and done safely."
Prerequisites: Businesses must clarify their custody model — full custody (WaaS provider holds keys), self-custody (users hold keys), or hybrid MPC models. Compliance requirements and user experience differ significantly among these models.
Common causes of failure: Some WaaS platforms have incomplete functionality on less popular chains or under complex contract scenarios. Development teams may find during integration that certain features "work but with issues," causing delays. Thorough functional testing before integration is essential.
Risk reminder: WaaS is a "service," not a "product." If the WaaS provider suffers a security incident, ceases operations, or faces regulatory action, your wallet functionality will be affected. When selecting a WaaS provider, prioritize security certifications (SOC 2, ISO 27001, etc.) and actual track record, not just the feature list.
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WaaS pricing models are evolving
Fee structures vary significantly among WaaS platforms. Some charge per wallet, others per monthly active user, still others take a percentage of transaction volume. No unified public pricing standard was found at the time of research.
Pricing strategies differ completely for startups and large enterprises. Startups benefit from low-cost or usage-based pricing, allowing them to go live quickly and validate products. Enterprise clients focus more on long-term costs and SLA guarantees. Before integration, request a detailed price list from the provider and map cost curves against expected business volume.
Confirm you understand the WaaS business logic: The next time you see a traditional app (like a bank app, a game, a payment platform) suddenly support a crypto wallet feature — it most likely didn't build the wallet itself, but integrated a WaaS service. You don't need to take extra action, but you might note which WaaS provider it uses; this can help you gauge the wallet's security and service level (e.g., whether it has MPC protection, compliance certifications). If your business is considering adding crypto wallet functionality, your first step is not writing code, but comparing quotations and security certifications from 3–4 WaaS providers.
