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account-abstraction-fixing-crypto-ux
Blog

The Future of B2B2C: White-Labeled Account Factories as a Service

Account abstraction's killer app isn't a consumer wallet—it's a B2B infrastructure layer. We analyze how Privy, Dynamic, and ZeroDev are building the embedded onboarding engines that will power the next billion crypto users.

introduction
THE ABSTRACTION FRONTIER

Introduction

White-labeled account factories are the critical infrastructure that will abstract wallet complexity for the next billion users.

White-labeled account factories shift the user acquisition burden from protocols to consumer brands. Platforms like Coinbase Smart Wallet and Privy provide the SDKs, while brands like Shopify or Robinhood own the customer relationship.

The new B2B2C model replaces direct-to-consumer wallet distribution. This mirrors how Stripe abstracted payments; now, ERC-4337 and Safe{Core} abstract smart account deployment and management for enterprises.

Evidence: Coinbase's Smart Wallet, built on Base, generated over 1 million smart accounts in its first month, demonstrating the demand for seamless, gasless onboarding.

thesis-statement
THE B2B2C MODEL

The Core Thesis: Abstraction as a Service

The next wave of crypto adoption will be driven by businesses embedding seamless, white-labeled wallets for their users, not by direct-to-consumer crypto apps.

White-labeled account factories are the new customer acquisition channel. Protocols like ZeroDev and Biconomy provide SDKs that let any app, from a game to a fintech platform, deploy ERC-4337 smart accounts for their users without touching crypto infrastructure.

Abstraction as a Service inverts the go-to-market model. Instead of protocols fighting for end-users, they sell infrastructure to businesses who already have users. This is the B2B2C pivot, mirroring how AWS sells to startups, not to their customers.

The evidence is in adoption curves. Arbitrum's Account Abstraction grant program and Polygon's aggressive AA ecosystem funding are not charity; they are customer acquisition costs for their L2s, paid to onboard the next million users via apps, not wallets.

market-context
THE INFRASTRUCTURE SHIFT

The On-Chine Reality: From Wallets to Embedded SDKs

The user-facing wallet is being abstracted into embedded SDKs, turning every app into a white-labeled account factory.

Wallets are becoming invisible infrastructure. The standalone wallet app is a transitional product. The endgame is account abstraction SDKs embedded directly into consumer applications, removing the onboarding friction of seed phrases and extensions.

Every app becomes its own account factory. Platforms like Privy and Dynamic provide white-labeled toolkits. This allows a gaming studio or e-commerce site to create and manage ERC-4337 smart accounts for users without them ever knowing the underlying blockchain.

The business model shifts from ads to gas. Applications monetize by operating the paymaster layer, sponsoring transaction fees and capturing value from user activity. This creates a B2B2C SaaS model for on-chain onboarding.

Evidence: Privy's SDK facilitated over 5 million wallet creations in 2023, primarily for non-crypto-native applications, demonstrating demand for embedded, frictionless onboarding.

WHITE-LABELED ACCOUNT FACTORIES

Infrastructure Provider Feature Matrix

Comparison of key technical and commercial specifications for B2B2C smart account infrastructure providers.

Feature / MetricZeroDev KernelBiconomy Smart AccountsSafe{Core} Account Abstraction StackCandide / ERC-4337 Reference

Core Architecture

Modular Kernel with EIP-4337 & 3074

Modular Smart Account with EIP-4337

Modular Safe Protocol & 4337 Bundler

Minimalist 4337 Reference Implementation

Gas Sponsorship (Paymaster) Model

Flexible (Session Keys, Subsidies, ERC-20)

Transaction Gas Tank & Subscription

Safe{Core} Paymaster Service

User-Pays or Simple Sponsorship

Avg. UserOp Gas Overhead

~42k gas

~45k gas

~50k gas

~38k gas

Time-to-Integration (SDK)

< 1 day

< 2 days

3-5 days

< 1 day

Multi-Chain Support (L2s)

15+ (OP Stack, Arbitrum, zkSync, etc.)

10+ (Polygon, Base, Linea, etc.)

8+ (Base, Gnosis Chain, etc.)

Any EVM with 4337

Native Batch Transactions

Session Key / Automation

Commercial License Required

deep-dive
THE BUSINESS MODEL

The Economic Engine: How Factories Monetize Abstraction

Account factories shift monetization from transaction fees to predictable SaaS-like subscription and usage-based revenue by selling infrastructure, not gas.

White-label infrastructure sales replace speculative tokenomics. A factory provider like Biconomy or ZeroDev charges protocols a monthly fee for a managed, branded smart account deployment service, creating recurring revenue detached from volatile on-chain activity.

Abstraction creates pricing power. By bundling gas sponsorship, batched transactions, and ERC-4337 bundler integration, factories sell a superior user experience that justifies premium B2B pricing, similar to how AWS monetizes cloud complexity.

The real profit is in data. Aggregating cross-chain user intent and sponsorship patterns from factories provides valuable analytics for protocols and VCs, a model pioneered by Covalent and Dune Analytics for raw chain data.

Evidence: Starknet's account abstraction roadmap explicitly includes fee-generating primitives for builders, signaling a direct path for factory monetization beyond simple contract deployment.

protocol-spotlight
THE FUTURE OF B2B2C

Protocol Spotlight: The Contenders

The race to abstract away wallet complexity is won by the infrastructure that enables any app to become a wallet. These are the protocols building the white-labeled account factories.

01

The Problem: Wallet Onboarding is a Conversion Killer

Every new user faces a ~90% drop-off rate at the seed phrase/private key step. This is the single biggest bottleneck to mainstream adoption, costing protocols billions in unrealized revenue.

  • Friction Point: Seed phrases, gas fees, and network switches are UX dead-ends.
  • Business Cost: DApps and games cannot own the user relationship, ceding it to wallet providers.
~90%
Drop-off Rate
$0
User Ownership
02

The Solution: ERC-4337 Account Abstraction as a Service

Turn any app into a non-custodial wallet with a few lines of code. Protocols like Stackup, Biconomy, and Alchemy provide the bundlers, paymasters, and account factories that abstract gas and key management.

  • Key Benefit: Social Logins & Gasless Transactions become default, not a feature.
  • Key Benefit: Apps embed financial primitives, creating stickier user experiences and new revenue lines.
<30s
Integration Time
0 ETH
User Gas Cost
03

The Contender: Privy's Embedded Wallets

A pure B2B2C play focused on web2-grade onboarding. Privy provides SDKs for embedded MPC wallets, abstracting all blockchain complexity behind familiar email/SMS logins.

  • Key Benefit: Zero blockchain jargon for the end-user; feels like a traditional sign-up.
  • Key Benefit: Full white-labeling allows brands to maintain complete control over look, feel, and user data flow.
10x
Higher Conversion
MPC
Security Model
04

The Contender: Dynamic's Cross-Chain Passkeys

Betting on passkeys (WebAuthn) as the ultimate recovery-less credential. Dynamic's SDK creates chain-agnostic smart accounts secured by biometrics, solving seed phrases and cross-chain fragmentation simultaneously.

  • Key Benefit: Native multi-chain support from day one; user's account works on Ethereum, Solana, etc.
  • Key Benefit: Phishing-resistant security via device-bound passkeys, a massive upgrade over private keys.
0
Recovery Phrases
Multi-Chain
By Default
05

The Contender: ZeroDev's Kernel Smart Accounts

An open-source, modular framework for building the most powerful smart accounts. ZeroDev leverages ERC-4337 and ERC-6900 to enable plugin-based functionality like session keys, batched transactions, and custom validation logic.

  • Key Benefit: Maximum flexibility for developers needing custom account logic (e.g., for gaming or DeFi).
  • Key Benefit: Permissionless innovation on a modular stack, avoiding vendor lock-in.
ERC-6900
Modular Standard
Open Source
Core Philosophy
06

The Business Model: From Cost Center to Profit Center

Account factories monetize by taking a cut of the gas sponsorship (paymaster fees) and offering premium features. They transform user onboarding from a cost center into a high-margin, recurring revenue stream.

  • Key Metric: Revenue Share on Sponsored Gas creates aligned incentives with app developers.
  • Key Metric: Lifetime Value (LTV) of a managed account far exceeds one-time SDK fees.
30-50%
Gross Margin
B2B2C SaaS
Model
counter-argument
THE VENDOR LOCK-IN

The Bear Case: Centralization and Captive Users

White-labeled account factories risk recreating the centralized user custody they aim to disrupt.

White-labeling centralizes infrastructure risk. The B2B2C model outsources core wallet logic to a single provider like Etherealabs or Candide. A critical bug or regulatory action against this provider compromises every downstream application's user base, creating systemic fragility.

Applications become captive tenants. Projects using ERC-4337 account factories from a dominant vendor trade short-term convenience for long-term lock-in. Migrating thousands of smart accounts to a new provider is a complex, high-risk operation that most teams will avoid.

The business model incentivizes data aggregation. The service provider, not the end application, ultimately controls the transaction flow and user graph data. This creates a meta-platform that can extract value, similar to how AWS monetizes infrastructure insights.

Evidence: The Stripe model in Web2 demonstrates this power dynamic. While developers integrate Stripe for payments, Stripe captures the payment graph and dictates feature rollouts, turning every integrated business into a data source.

risk-analysis
WHITE-LABELED ACCOUNT FACTORIES

Critical Risks for Builders and Investors

Outsourcing user onboarding via B2B2C account factories introduces novel technical and economic risks beyond typical smart contract vulnerabilities.

01

The Meta-Infrastructure Lock-In

The factory becomes a single point of failure and control. If the core service (e.g., ERC-4337 Bundler, Paymaster) degrades, all downstream white-label apps fail simultaneously. This creates systemic risk akin to early AWS outages, but for user identity.

  • Risk: Vendor lock-in on critical path components.
  • Mitigation: Demand modular, swappable backend providers (e.g., Pimlico, Stackup, Alchemy) in the service architecture.
100%
App Dependency
1→N
Failure Cascade
02

The Subsidy Sustainability Cliff

User acquisition is often fueled by abstracted gas fees (sponsorship). This creates a customer acquisition cost (CAC) time bomb. When subsidies end, user retention plummets, exposing weak product-market fit.

  • Risk: $0.05-$0.50 per user op subsidy becomes untenable at scale.
  • Mitigation: Model LTV/CAC with real gas economics; plan phased subsidy sunset tied to real revenue (e.g., UniswapX-style fillers).
$0.05-$0.50
Per-Op Subsidy
-80%
Retention Drop
03

The Shared Reputation Sinkhole

White-label factories aggregate transaction flow. One malicious or poorly designed app (e.g., spam, MEV extraction) can poison the shared paymaster reputation or get the entire factory's bundler censored by sequencers.

  • Risk: Bad actor jeopardizes service quality for all clients.
  • Mitigation: Implement strict, enforceable SLA tiers and real-time monitoring with penalties, inspired by LayerZero's Oracle/Relayer separation.
1 Bad Actor
Taints All
24/7
Reputation Monitoring
04

The Modular Integration Fragmentation

To be competitive, a factory must integrate dozens of chains and infra providers (EVM chains, Solana, Starknet, zkSync). Each integration is a maintenance and security burden. Falling behind on chain upgrades breaks client apps.

  • Risk: Technical debt and attack surface explode with each new integration.
  • Mitigation: Adopt a hyper-modular design with isolated adapters; treat each integration as a standalone risk module.
20+
Chain Integrations
10x
Attack Surface
05

The Privacy & Compliance Blind Spot

The factory operator sees aggregated user flow across all client dApps. This creates a massive, attractive data honeypot and regulatory liability (e.g., OFAC sanctions screening, GDPR). Clients may be liable for the factory's compliance failures.

  • Risk: Unintended data broker status and regulatory crossfire.
  • Mitigation: Architect for zero-knowledge proofs or local processing; clear data jurisdiction and ownership in SLAs.
100%
Flow Visibility
Multi-Jurisdiction
Liability
06

The Economic Abstraction War

Account abstraction's promise—paying fees in any token—shifts the battle to paymaster economics. Factories will compete on who secures the deepest liquidity and best exchange rates across 100+ assets, a brutal margin war.

  • Risk: Race to the bottom on fees erodes the core business model.
  • Mitigation: Develop proprietary DEX aggregation or OTC desks for fee tokens; leverage Circle CCTP or LayerZero for cross-chain gas.
100+
Token Support
~0%
Target Margin
future-outlook
THE B2B2C PIVOT

The 24-Month Outlook: Consolidation and Specialization

The next wave of user acquisition will be driven by white-labeled smart account infrastructure, abstracting wallet complexity for mainstream applications.

White-label account factories win. Protocols like Ethereum's ERC-4337, Starknet's account abstraction, and Solana's Token Extensions provide the base layer. Infrastructure providers like Biconomy and Candide will package these primitives into SDKs, enabling any app to embed a non-custodial wallet with one line of code.

The specialization is in verticals. A DeFi app needs gas sponsorship and batch transactions. A gaming studio requires session keys and social recovery. The general-purpose wallet (e.g., MetaMask) becomes a power-user tool, while white-labeled embedded wallets become the default for onboarding.

Consolidation happens at the RPC layer. As account abstraction proliferates, the user operation bundler becomes a critical, commoditized service. Providers like Alchemy and QuickNode will absorb this function, competing on reliability and global latency, not features.

Evidence: The EIP-4337 ecosystem already processes over 1.2 million UserOperations monthly. Coinbase's Smart Wallet and Binance's Web3 Wallet are early B2C implementations of this white-label model, proving demand.

takeaways
STRATEGIC INFRASTRUCTURE

Key Takeaways for CTOs and Architects

White-labeled account factories are becoming the essential B2B2C primitive, abstracting away wallet complexity to let businesses own the customer relationship.

01

The Abstraction Layer for User Onboarding

The problem is that every app reinvents the wheel on onboarding, creating friction and security pitfalls. The solution is a factory-as-a-service that abstracts seed phrase management, gas sponsorship, and social recovery.

  • Key Benefit 1: Reduce time-to-integration from months to weeks.
  • Key Benefit 2: Achieve >90% onboarding completion by eliminating seed phrases.
-90%
Dev Time
>90%
Onboard Rate
02

The Revenue Engine: Embedded Finance & Data

The problem is that applications treat wallets as cost centers. The solution is to monetize the embedded financial stack and own first-party onchain data.

  • Key Benefit 1: Capture fees from embedded swaps (via UniswapX, 1inch), staking, and bridging.
  • Key Benefit 2: Leverage proprietary user graph data for hyper-targeted services and partnerships.
15-30%
Revenue Uplift
100%
Data Ownership
03

The Compliance Firewall: Programmable KYC & Risk

The problem is that global compliance (e.g., Travel Rule, MiCA) makes monolithic wallet design untenable. The solution is a factory with modular, jurisdiction-aware policy engines.

  • Key Benefit 1: Deploy region-specific rule sets (e.g., US OFAC, EU MiCA) at the account level.
  • Key Benefit 2: Isolate regulatory risk from core application logic, enabling faster geographic expansion.
~50ms
Policy Check
0
Regulatory Drag
04

The Interoperability Mandate: Not Just an EVM Feature

The problem is that EVM-only factories lock you into one ecosystem. The solution is a multi-chain factory leveraging intents and universal layers like LayerZero and Axelar.

  • Key Benefit 1: Native user accounts on Solana, Bitcoin L2s, and EVM chains from a single integration.
  • Key Benefit 2: Enable cross-chain user experiences powered by intent-based architectures (Across, Socket).
5+
Chains Supported
1
Integration Point
05

The Performance Imperative: Sub-Second Account Creation

The problem is that slow, costly account creation kills conversion. The solution is a factory optimized with parallelized ECDSA, batched deployments, and L2-native opcodes.

  • Key Benefit 1: Achieve ~200ms end-to-end account creation latency on high-throughput L2s like Arbitrum or zkSync.
  • Key Benefit 2: Reduce deployment gas costs by >95% via counterfactual addresses and batch optimizations.
~200ms
Creation Time
-95%
Gas Cost
06

The Exit Strategy: Avoiding Protocol Lock-In

The problem is vendor lock-in with proprietary account standards. The solution is to demand factories built on open, auditable standards like ERC-4337 (Account Abstraction) and ERC-6900 (Modular Accounts).

  • Key Benefit 1: Maintain sovereignty; you can migrate user accounts if the factory provider fails or raises fees.
  • Key Benefit 2: Future-proof by composability with the broader smart account ecosystem (Safe, ZeroDev, Biconomy).
ERC-4337
Open Standard
0
Migration Cost
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White-Labeled Account Factories: The B2B2C Onboarding Engine | ChainScore Blog