Alchemy Account Abstraction SDK
https://github.com/alchemyplatform/aa-sdk- Category
- Crypto
- Rank
- No. 397Tools index
Previous survey · No. 390 ·
- Pricing
- Open Source
- Type
- TOOL
- Builder
- alchemyplatform
- GitHub
- 321 stars
- Date
About
TypeScript SDK for building ERC-4337 account abstraction apps and smart wallets on Ethereum.
What it does
It assembles smart-account building blocks for email and passkey sign-in, sponsored transactions, and batched checkout flows. Separate packages handle shared transport and authentication, bundler fee estimation, account implementations, permissions, signing, and transaction delivery.
Why it's ranked here
The package boundaries are unusually clear, and the public exports cover both low-level account mechanics and higher-level wallet operations. Its strongest case is an Alchemy-centered stack that still exposes modular account, transport, permission, and signing layers.
What's good
Developers can choose LightAccount or two generations of Modular Account, including multi-owner variants. The SDK exposes address prediction, call codecs, deferred actions, permission construction, signature packing, validation modules, typed errors, logging controls, and EVM plus Solana client types.
Tradeoffs
Alchemy transport, authentication, chain registry, Rundler fee estimation, and Wallet API access shape much of the stack. The repository requires a recent Node release and uses a pnpm, Turbo, and Lerna monorepo workflow, which adds contributor setup beyond a small standalone package.
How to use it well
Use it when building an Alchemy-backed wallet flow that needs smart accounts, passkeys, sponsored gas, permissions, signing, or batched calls. Start with the high-level wallet client, then adopt lower-level account modules when customization demands it. It supplies SDK components, not a finished wallet interface or product UI.
Technical notes+
README.md defines four package layers. packages/common/src/index.ts exports transport, chain-registry, configuration, utility, and error surfaces, while packages/common/src/logging/index.ts adds configurable diagnostics and redaction. packages/aa-infra/src/index.ts exposes schemas and gas-fee estimation. packages/smart-accounts/src/index.ts is the broadest barrel, covering LightAccount, Modular Account v1/v2, codecs, modules, permissions, address prediction, signatures, and typed errors. packages/wallet-apis/src/exports/index.ts exports wallet actions, decorators, clients, and transport, including EVM and Solana client types. package.json coordinates pnpm workspaces with Turbo, Lerna, TypeScript, Vitest, ESLint, Prettier, and TypeDoc. The four supplied inject-version.ts scripts generate package version modules from local package metadata. Package-specific vitest.config.ts files define projects, with wallet API tests serialized, non-isolated, and retried.
Observed
- Primary language
- TypeScript
- Interface
- Library SDK exposed through scoped packages and TypeScript export barrels
- Package surface
- Four packages: @alchemy/common, @alchemy/aa-infra, @alchemy/smart-accounts, and @alchemy/wallet-apis
- Repository structure
- Private pnpm workspace monorepo covering templates, shared test configuration, tooling, and packages
- Runtime requirement
- Repository root requires Node.js 22.12.0 or newer
- Core foundation
- Built on viem and the ERC-4337 standard
- Testing
- Vitest projects are configured for common, infrastructure, smart-account, and wallet API packages
Read from README.md, package.json, packages/common/vitest.config.ts, packages/common/inject-version.ts, packages/aa-infra/vitest.config.ts, packages/aa-infra/inject-version.ts, packages/wallet-apis/vitest.config.ts, packages/wallet-apis/inject-version.ts, packages/smart-accounts/vitest.config.ts, packages/smart-accounts/inject-version.ts, packages/common/src/index.ts, packages/aa-infra/src/index.ts, packages/smart-accounts/src/index.ts, packages/common/src/logging/index.ts, packages/wallet-apis/src/exports/index.ts.
What it can do
Create ERC-4337 smart wallets
Wallet configuration parameters → Deployed smart wallet contract
Execute gasless transactions
Transaction data and user operations → Executed blockchain transactions without gas fees
Batch multiple transactions
Array of transaction operations → Single bundled transaction execution
Implement social recovery mechanisms
Guardian addresses and recovery rules → Wallet recovery functionality
Manage wallet permissions and access control
Permission rules and authorized addresses → Configured access control system
Generate user operation signatures
Transaction data and private keys → Cryptographically signed user operations
Integrate with paymaster services
Paymaster contract addresses and policies → Gas sponsorship configuration
Tags
Tech Stack
Media
Comments (0)
No comments yet
Editorially curated, with community endorsements as a secondary signal. Corrections welcome.