10 Best Web3 Account Abstraction SDKs In 2026

In this article, I’ll be discussing the Best Web3 Account Abstraction SDKs to help developers build smarter, more secure and user-friendly blockchain wallets.

We’ll review their core functionalities, features, supported blockchain networks, pricing models and unique benefits to help you choose the right account abstraction SDK for your Web3 project.

How We Select the Best Web3 Account Abstraction SDKs

• Supported Blockchain Networks: Please ensure to include Ethereum, Layer 2 networks and other blockchains.
• Security: Go over wallet security, login authentication, account recovery, and permission controls.
• Developer Tools: Examine SDKs, APIs, documentation, bundlers, and integration capabilities.
• Pricing and Cost: Compare pricing plans, API usage fees, and transaction infrastructure fees.
• Scalability: Look at the dependability of infrastructure, processing of transactions and support of growing applications.
• Integration Ease: Consider the ease of implementation, customization options and the developer experience.
• Unique Features: Highlight any unique features that differentiate each SDK from the competition.
• Community and Documentation : Explore developer resources, open source activity, technical support and ecosystem adoption.

Key Points & Best Web3 Account Abstraction SDKs

Web3 Account Abstraction SDK	Explanation
ZeroDev	Provides modular account abstraction infrastructure for building smart wallets and seamless onboarding experiences.
Safe	Offers secure smart accounts with customizable permissions, multisignature controls, and transaction management.
Biconomy	Simplifies smart account development through gas sponsorship, batching, and seamless transaction experiences.
Alchemy Account Kit	Provides developer-friendly tools for building smart accounts with authentication and gas sponsorship.
Pimlico	Delivers ERC-4337 infrastructure, bundlers, paymasters, and reliable smart account transaction services.
Privy	Enables embedded wallets and seamless authentication for user-friendly Web3 application experiences.
thirdweb	Offers comprehensive SDKs for smart wallets, account abstraction, and blockchain application development.
Coinbase Smart Wallet	Enables passkey-based smart wallets with simplified onboarding and secure onchain transactions.
Etherspot	Provides account abstraction SDKs supporting smart wallets, transaction batching, and gas sponsorship.
Stackup	Delivers ERC-4337 infrastructure, bundlers, and paymasters for scalable account abstraction applications.

10 Best Web3 Account Abstraction SDKs In 2026

1. ZeroDev

ZeroDev is a Web3 account abstraction platform that allows developers to build smart contract wallets using ERC-4337 and EIP-7702 standards. Its Kernel smart accounts feature passkey authentication, social login, account recovery, gas sponsorship, transaction batching and session keys. Developers may also use paymasters to sponsor transaction fees, or enable users to pay gas using supported ERC-20 tokens.

Supported Blockchain Networks: ZeroDev supports 50+ networks including Ethereum, Polygon, Arbitrum, Optimism, Base, BNB Smart Chain, Avalanche, and other EVM compatible chains. It supports Solana infrastructure too.

Pricing / Cost ZeroDev offers both free and paid plans. To use Chain Abstraction in production, you need a Scale or Enterprise plan. Cross-chain transaction fees are 0.2% for amounts less than $500 and 0.1% for $500 or more.

ZeroDev Unique Features

• Smart Account Creation: Developers are able to create programmable smart contract wallets using ERC-4337 and EIP-7702 standards.
• Gas Sponsorship: Users can enjoy gasless blockchain experiences as apps can sponsor their transaction fees.
• Transaction Automation: Allows for batching transactions, using session keys, defining custom permissions, and automating wallet operations.
• Chain Abstraction: Allows users to access and spend assets from supported blockchains without the need to manually bridge tokens.

ZeroDev Developer Tools

Developer Tools	Explanation
Kernel SDK	Helps developers create and customize ERC-4337 smart accounts.
ZeroDev SDK	Provides tools for integrating smart wallets into decentralized applications.
Paymaster API	Enables developers to configure gas sponsorship and transaction policies.
Bundler Infrastructure	Processes UserOperations and submits smart account transactions to blockchain networks.
Dashboard	Helps developers manage projects, API keys, and account configurations.

2. Safe

Safe is a popular smart account infrastructure platform that aims to provide secure wallet management for individuals, businesses, DAOs and Web3 applications. Its Safe Smart Account architecture enables multi-signature approvals, configurable permissions, transaction management, recovery modules and modular account functionality.

Developers are able to integrate Safe and build applications that require advanced wallet security using the Safe SDK and other infrastructure tools. Its account abstraction integrations also support ERC-4337 functionality and passkey authentication. Supported Blockchain Networks Safe supports many networks such as Ethereum, Optimism, Polygon, Arbitrum, Avalanche, Gnosis Chain and other EVM-compatible networks.

Its official network directory lists hundreds of supported network configurations. Cost / Pricing: Safe’s core infrastructure and SDK are open source. The network gas fees are charged separately. Safe subscription plans include additional features such as gas sponsorship with transaction limits based on the plan.

Safe Unique Features

• Smart Account Management: Programmable smart contract accounts for individuals, businesses, DAOs and decentralized applications.
• Multisignature Security: Requires multiple authorized approvals for sensitive wallet transactions and asset transfers before execution.
• Modular Account Infrastructure: Customizable modules, permissions, recovery mechanisms, advanced wallet capability.
• Transaction Management: Allows developers to build secure transaction execution and asset management experiences.

Safe Developer Tools

Developer Tools	Explanation
Safe Core SDK	Provides libraries for integrating Safe smart accounts into applications.
Safe	Offers an interface for managing smart accounts and transactions.
Safe Protocol Kit	Enables developers to create, configure, and interact with Safe accounts.
Safe API Kit	Provides APIs for retrieving transaction data and wallet information.
Safe Modules	Allows developers to extend wallet functionality through customizable modules.

3. Biconomy

Biconomy provides account abstraction infrastructure for developers to build smart accounts and provide a simplified Web3 transaction experience. It’s Smart Account SDK supports ERC-4337 functionality, signer flexibility, validation modules, transaction batching and gas sponsorship. Modular validation systems allow developers to mix and match authentication methods and customize wallet permissions.

Biconomy also offers paymaster and bundler infrastructure, enabling applications to sponsor transaction fees and submit user operations without users needing to manage native tokens. Supported Blockchain Networks: Biconomy supports EVM-compatible networks like Ethereum, Polygon, Arbitrum, Optimism, Base and other supported Layer 2 networks.

The exact availability depends on which infrastructure service you choose. Cost/Pricing: Biconomy provides developer infrastructure, priced based on usage, with allowances that depend on the plan. You can get paymaster sponsorship and bundler requests but the actual gas fees on the blockchain can get pricey. Enterprise pricing will likely require contacting its sales team.

Biconomy Unique Features

• Smart Account Creation: Enables developers to build programmable smart wallets with account abstraction infrastructure and modular architecture.
• Gasless Transactions: Introduces paymaster functionality to sponsor transaction fees and improve user experience.
• Transaction Batching: Combines multiple blockchain operations into fewer transactions, reducing the number of redundant wallet confirmations.
• Modular Permissions: Supports session keys, custom validation modules, and flexible smart account execution.

Biconomy Developer Tools

Developer Tools	Explanation
Smart Account SDK	Helps developers integrate programmable smart accounts into Web3 applications.
Paymaster API	Supports gas sponsorship and alternative transaction fee payment methods.
Bundler Infrastructure	Processes ERC-4337 UserOperations and handles transaction submission.
Nexus SDK	Provides modular smart account functionality and flexible wallet configurations.
Developer Dashboard	Helps developers manage API keys, projects, and infrastructure usage.

4. Alchemy Account Kit

Alchemy Account Kit is a developer tool kit for building smart accounts and adding account abstraction to Web3 applications. It helps developers in simplifying wallet creation, user authentication, transaction execution and gas sponsorship. Its account abstraction infrastructure features bundler and paymaster services, allowing apps to submit user operations and sponsor transaction fees for eligible users.

Supported Blockchain Networks: Alchemy supports major networks such as Ethereum, Polygon, Arbitrum, Optimism, Base, Avalanche, BNB Smart Chain and other EVM networks. Alchemy’s larger infrastructure also supports Solana, but things like account abstraction are dependent on chain compatibility.

Pricing / Cost: Alchemy has a free tier with 30M monthly compute units. Pay-as-you-go pricing begins at $0.525 per million compute units. Gas sponsorship may incur additional administrative fees. Enterprise plans are priced separately.

Alchemy Account Kit Unique Features

• Smart Wallet Development: SDKs and APIs for embedding programmable smart accounts in decentralized applications.
• Embedded Wallets: Users can create wallets using familiar authentication methods without the need for complex onboarding.
• Gas Sponsorship: Provides Gas Manager infrastructure to sponsor eligible blockchain transactions through configurable policies.
• Developer Infrastructure: Integrates account abstraction with blockchain APIs, bundlers, paymasters and transaction monitoring.

Alchemy Account Kit Developer Tools

Developer Tools	Explanation
Account Kit SDK	Enables developers to integrate smart accounts and wallet functionality.
Modular Account SDK	Supports customizable smart account implementations and transaction execution.
Gas Manager	Helps configure transaction sponsorship and gas management policies.
Bundler API	Processes UserOperations and facilitates smart account transaction submission.
Alchemy Dashboard	Provides project management, API keys, analytics, and infrastructure monitoring.

5. Pimlico

Pimlico provides account abstraction infrastructure for developers to deploy and manage smart accounts using the ERC-4337 technology. The permissionless.js TypeScript library simplifies integrating with bundlers, paymasters, user operations, and smart account implementations. Pimlico also provides Alto Bundler infrastructure for processing user operations and Verifying Paymasters to sponsor transaction fees.

This allows developers to plug in different smart account implementations such as Safe, Kernel, and Biconomy, without having to build their own full infrastructure. Supported Blockchain Networks: Pimlico supports 100+ EVM compatible networks, including Ethereum and several Layer 2 ecosystems. Its paymaster services support gas sponsorship over supported networks.

Pricing / Cost: 1. Pimlico offers developer access with consumption-based infrastructure pricing. Paymaster users can verify by attaching payment methods or preloading balances while ERC-20 Paymaster transactions enable users to pay gas with supported tokens. But network gas fees are still a thing.

Pimlico Unique Features

• Bundler Infrastructure: Processes ERC-4337 UserOperations and submits smart account transactions to blockchain networks.
• Paymaster Services: Enables applications to sponsor transaction fees and support alternative gas payment methods.
• Smart Account Integration: Supports multiple smart account implementations through developer-friendly account abstraction libraries.
• Developer SDK: Provides Permissionless.js for integrating bundlers, paymasters, and smart account functionality.

Pimlico Developer Tools

Developer Tools	Explanation
Permissionless.js	Provides TypeScript tools for integrating smart accounts and ERC-4337 infrastructure.
Alto Bundler	Processes UserOperations and submits transactions to supported blockchain networks.
Verifying Paymaster	Enables applications to sponsor gas fees through paymaster infrastructure.
Pimlico API	Provides access to bundler and paymaster services through developer endpoints.
Developer Dashboard	Helps developers monitor infrastructure usage and manage project configurations.

6. Privy

Privy is a Web3 wallet infrastructure and authentication platform that helps developers build embedded wallets and make user onboarding easy. It allows login through email, phone numbers, social accounts and passkeys,

letting users access blockchain applications without having to deal with traditional seed phrases. Developers are able to integrate wallet management, delegated permissions, transaction signing and native gas sponsorship into their apps.

Privy can also partner with account abstraction providers to offer smart account capabilities. Supported Blockchain Networks Privy’s wallet infrastructure supports EVM-compatible networks and Solana, with account abstraction functionality varying by integration.

Pricing / Cost: Privy’s Developer plan is free, includes 50,000 monthly signatures and $1 million in transaction volume. Core is $299 a month and Scale is $499 a month. Enterprise pricing is built for you. Additional usage fees may apply for usage beyond monthly allowance.

Privy Unique Features

• Embedded Wallet Creation: Enables applications to generate self-custodial wallets through simple user authentication experiences.
• Social Authentication: Supports email, phone, social logins, and passkeys for simplified wallet access.
• Wallet Management: Provides APIs for managing wallet creation, authentication, signing, and transaction execution.
• Smart Account Integration: Connects embedded wallet signers with account abstraction providers for programmable wallet functionality.

Privy Developer Tools

Developer Tools	Explanation
Privy SDK	Provides libraries for integrating authentication and wallet functionality.
Embedded Wallet API	Enables developers to create and manage embedded user wallets.
React SDK	Simplifies wallet authentication and integration into React applications.
Server SDK	Supports backend wallet management and server-side authentication workflows.
Dashboard	Helps developers configure applications, authentication methods, and wallet settings.

7. thirdweb

thirdweb is a complete Web3 dev platform with SDKs, APIs, and infrastructure to build decentralized applications. Its account abstraction tools enable developers to build smart wallets, gas sponsorship, simplify wallet authentication, and interact with the blockchain.

Its development ecosystem enables developers to build in embedded wallets, server wallets, contract interactions and transaction management. Its tools are suitable for gaming platforms, NFT marketplaces, DeFi applications and other blockchain projects.

Supported Blockchains: thirdWeb supports many EVM compatible chains like Ethereum, Polygon, Arbitrum, Optimism, Base, Avalanche, BNB Smart Chain, and more. Pricing / Cost: Growth plan $99/month, Scale $499/month and Pro starting at $1,499/month. Depending on the chosen services, additional wallet, gas sponsorship and infrastructure usage charges may apply.

thirdweb Unique Features

• Smart Wallet Development: Offers SDKs for creating and integrating smart contract wallets into Web3 applications.
• Gasless Transactions: Transaction sponsorship is supported via paymaster infrastructure and custom application configuration.
• Embedded Wallet Integration: Gives developers the ability to offer seamless onboarding and authentication flows for wallets.
• Blockchain Development Tools: Smart accounts, contract deployment, transaction execution and blockchain APIs.

thirdweb Developer Tools

Developer Tools	Explanation
thirdweb SDK	Provides libraries for integrating smart wallets and blockchain functionality.
Connect SDK	Simplifies wallet connections and authentication across decentralized applications.
Smart Wallet Tools	Enables developers to configure programmable smart accounts and wallet operations.
Paymaster Infrastructure	Supports sponsored transactions and gasless user experiences.
thirdweb Dashboard	Provides tools for managing projects, contracts, wallets, and API access.

8. Coinbase Smart Wallet

The Coinbase Smart Wallet is a smart contract wallet based on passkeys that aims to make it easier to onboard to Web3 and eliminate the need for a recovery phrase. Developers are able to embed wallet functionality via compatible decentralized apps that support secure authentication, transaction batching and sponsored network fees.

Users can create wallets using device-based passkeys and engage with applications without the need to install browser extensions. This architecture makes it ideal for consumer-facing dApps, NFT platforms, and blockchain applications that value accessibility.

Blockchain Networks Supported: Coinbase Smart Wallet supports EVM chains like Base, Ethereum, Optimism, Arbitrum, Polygon, and Avalanche C-Chain. Pricing / Cost: There is no additional subscription fee to create and use the wallet.

But users may have to pay gas fees on the blockchain network when transactions are not sponsored by applications. Ethereum transactions can be more expensive than those on lower-fee networks like Base.

Coinbase’s Smart Wallet Unique Features

• Passkey Authentication: Allows users to create and log in to smart wallets using device-based biometric authentication.
• Smart Account Features: Provides programmable wallet features for interacting with decentralized applications and blockchain networks.
• Gas Sponsorship: Allows sponsored transactions using compatible paymaster infrastructure on the Coinbase Developer Platform.
• Simplified Onboarding: Eliminates traditional seed phrases and reduces friction for wallet creation and usage.

Coinbase Smart Wallet Developer Tools

Developer Tools	Explanation
Smart Wallet SDK	Helps developers integrate Coinbase Smart Wallet functionality into applications.
Coinbase Developer Platform	Provides APIs and infrastructure for building blockchain applications.
Smart Wallet APIs	Support wallet creation, account interactions, and transaction execution.
Paymaster API	Enables eligible applications to sponsor smart wallet transaction fees.
OnchainKit	Provides React components and utilities for building onchain applications.

9. Etherspot

Etherspot is an account abstraction infrastructure provider that offers developer tools to build smart wallets and enhance decentralized application experiences. Their Prime SDK and TransactionKit simplify wallet integration, transaction execution, and multichain app development. Etherspot also offers a modular SDK based on ERC-7579, enabling developers to customize smart accounts with different modules.

Its Arka Paymaster supports sponsored transactions. The ERC-4337 bundler infrastructure is provided by Skandha. Supported Blockchain Networks Etherspot supports multiple EVM compatible networks such as Ethereum, Polygon, Arbitrum, Optimism, Base and other available networks.

Price / Cost: The testnet plan includes one million monthly credits for free. Mainnet access is available on a pay-as-you-go basis, $1 per 250,000 credits, with a minimum prepaid balance of $10. Gas fees are passed through without markup. Enterprise pricing is tailored.

Etherspot Unique Features

• Smart Account Development: Provides SDKs for creating programmable smart accounts and integrating account abstraction.
• Transaction Management: Supports transaction execution, batching, and multichain blockchain interaction.
• Bundler Infrastructure: Offers Skandha infrastructure for processing ERC-4337 UserOperations across supported networks.
• Gas Sponsorship: Provides Arka Paymaster functionality for sponsoring eligible smart account transactions.

Etherspot Developer Tools

Developer Tools	Explanation
Prime SDK	Provides tools for integrating smart accounts and account abstraction functionality.
TransactionKit	Simplifies transaction execution and multichain application development.
Skandha Bundler	Processes ERC-4337 UserOperations and submits smart account transactions.
Arka Paymaster	Supports gas sponsorship and alternative transaction payment mechanisms.
Etherspot Dashboard	Helps developers manage infrastructure access and project configurations.

10. Stackup

Stackup is an account abstraction infrastructure provider, allowing developers to implement ERC-4337 smart accounts and user operations. Its platform features bundler infrastructure for processing user operations and submitting transactions to supported blockchain networks. Developers are able to integrate account abstraction functionality without running their own bundler infrastructure, making it easier to deploy smart wallets and execute transactions.

Stackup is great for use cases that need gas sponsorship, auto transaction handling and more wallet experience. Supported Blockchain Networks Stackup supports Ethereum, Arbitrum, Optimism, Avalanche, Polygon, Base and BNB Smart Chain. Additional networks may need provider approval.

Cost: / Price: Stackup’s public documentation does not currently contain a uniform subscription price across the board. Developers must check current service availability and commercial terms directly. Create separate budgets for bundler infrastructure, paymaster sponsorships, and underlying blockchain gas fees.

Stackup Unique Features

• ERC-4337 Infrastructure: Offers developer infrastructure for building account abstraction and smart contract wallet functionality.
• Bundler Services: Processes UserOperations and submits bundled transactions to the supported blockchains.
• Paymaster Integration: Supports sponsored transactions, allowing applications to pay for eligible user gas fees.
• Developer Integration: Provides APIs and open-source tools to allow developers to integrate account abstraction into decentralized applications.

Stackup Developer Tools

Developer Tools	Explanation
Stackup SDK	Provides developer tools for integrating account abstraction functionality.
Bundler API	Processes ERC-4337 UserOperations and submits transactions to blockchain networks.
Paymaster Integration	Supports sponsored transactions and gas payment management.
UserOperation Tools	Help developers construct, estimate, and submit smart account operations.
Open-Source Infrastructure	Provides reusable components for building account abstraction applications.

Conclusion

Conclusion When choosing the best Web3 account abstraction SDKs, you need to consider the requirements of your project, your budget, security needs, and blockchain compatibility. Powerful smart account infrastructure and developer tools are available from platforms like ZeroDev, Safe, Biconomy, Alchemy Account Kit and Pimlico.

When choosing an SDK, evaluate its core features, network support, cost, gas sponsorship, and integration potential to build scalable, secure, and user-friendly Web3 applications.

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