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Safe Core SDK

Safe Core SDK is a public MIT-licensed TypeScript monorepository containing developer libraries for interacting with Safe Smart Accounts, the Safe Transaction Service API and ERC-4337-related workflows.

Independent OpenViST project profile, based on linked sources.

Safe Core SDK — OpenViST project profile in Developer Tools.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it when an application needs a documented TypeScript integration with Safe smart accounts, Safe transaction coordination or the SDK's ERC-4337-related capabilities.

Who it is for

  • TypeScript developers building Ethereum applications.
  • Teams adding Safe smart-account or wallet functionality to an application.
  • Builders implementing transaction coordination or ERC-4337-related fee and sponsorship flows.

Documented uses

  • Create and configure Safe Smart Accounts.
  • Create and execute Safe transactions.
  • Propose transactions, collect signer signatures and retrieve Safe information through the Safe Transaction Service API.
  • Support ERC-4337 flows with token-based fee payment or sponsored transactions.
  • Use shared TypeScript types across the SDK packages.
Before you choose

Requirements & limits

The repository is publicly visible and released under the MIT license. The supplied material does not specify pricing, runtime prerequisites or account requirements.

  • Choose Protocol Kit for Safe Smart Account interaction, including account creation, configuration updates and transaction operations.
  • Choose API Kit when the application needs to propose and share transactions, collect signer signatures or retrieve Safe information through the Safe Transaction Service API.
  • Choose relay-kit for the documented ERC-4337 fee-payment and transaction-sponsorship capabilities.
  • Use types-kit when shared types across Safe Core SDK packages are needed.
  • The repository includes a playground and an integration guide, which can help developers move from package selection to implementation examples.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
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Sources checked
3 October 2026
Original website title
safe-global/safe-core-sdk · Official homepage title · retained in its source language
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