Rhinestone and Axiom Partner to Unite Ethereum’s UX

We've partnered with Axiom to develop the Keystore Validator to provide seamless crosschain key management.

Partnership
Kurt Larsen
May 27, 2025
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  • We’ve partnered with Axiom to develop the Axiom Keystore Validator to provide seamless crosschain key management and recovery to all ERC-7579 smart accounts.
  • Our shared vision is to drive mass adoption of a united Ethereum. This partnership extends our work on Omni Account, laying the foundation for a more interconnected wallet infrastructure across Ethereum’s L2’s.

Introduction

As the crypto industry scales, it will be impossible to service the demand with a single global execution environment. This has motivated Ethereum’s horizontal scaling through a rollup-centric roadmap. However, this fragments assets and data across rollups. Rhinestone aims to solve this with Omni Account, an intent-powered system that chain-abstracts any smart account or smart EOA.

Being able to unify and instantly spend funds across any chain is only one part of the problem. Although EOAs possess the ability to share the same key across all chains, smart accounts require keys to be manually synced. This introduces a major challenge for users. It means any updates to smart wallet configs (e.g., the signer) must be replayed on each rollup, creating an operational burden and risking fragmentation of configurations across chains. As Ethereum scales, the job of managing and recovering keys becomes increasingly more challenging.

The problem stems from the lack of a single source of truth for managing keys and configurations. Axiom’s keystore solves this by providing one central location that allows users to recover, rotate, and synchronize their keys across all rollups seamlessly.

Today, we’re announcing the Axiom Keystore Validator for all ERC-7579 smart accounts.

A Powerful Collaboration

At Rhinestone, we provide infrastructure and tooling for chain-abstracted smart accounts, designed to empower developers to build self-custodial Web3 applications with uncompromising UX. The Axiom keystore is a special-purpose ZK rollup that provides a single place to manage signing data for smart accounts across numerous rollups. Acting as a unified repository for key management, it allows users to seamlessly maintain and update their keys.

This partnership delivers three core benefits to the broader wallet ecosystem:

  • Trustless key management for chain abstracted accounts: Axiom’s Keystore rollup will be trust-minimized and censorship-resistant. Once live and in production, it will provide users trust guarantees over their keys equivalent to those provided by Ethereum mainnet, while offering lower costs by trading off asynchrony.
  • Simple integration for developers: The Axiom Keystore module will be included as a Core Module within Rhinestone’s product suite, making integration with any ERC-7579 compliant smart account or smart EOA easy and straightforward.
  • Compatible with Omni Account: The keystore integration will be fully compatible with Omni Account, making it the first chain abstraction system with built in module config sync across supported chains.

Technical Synergies

The integration of Axiom’s keystore technology with Rhinestone’s Omni Account unlocks powerful capabilities. The vision behind Omni Account is to enable an account stack that is truly chain abstracted and delivers best-in-class UX, without compromising on the trustlessness and composability of the existing smart account stack. The Axiom Keystore provides a scalable and trustless means to sync module config state across chains, allowing for more than just balance unification and instant crosschain execution. We’re initially utilizing Axiom to offer a chain abstracted passkey set up. In the future, the same technology can be used to power other chain abstracted wallet features, such as ZK Email recovery, session keys, security policies — anything that needs to be united across chains for the best-in-class user experience.

A Shared Commitment

The Axiom Keystore’s mission to unlock scalable and trustless solutions to Ethereum’s fragmented ecosystem makes them the ideal partner for offering the ultimate smart account backend infra for chain abstracted wallets and applications. “We’re excited to partner with Rhinestone to bring trust-minimized key management across rollups to wallets across the Ethereum ecosystem by integrating the Axiom keystore into Omni Account.” said Yi Sun, co-founder at Axiom.

Our shared vision is to drive mass adoption of a united Ethereum. This partnership lays the foundation for a more interconnected wallet infrastructure across Ethereum’s L2’s.

Next Steps

If you’re interested in learning more about Omni Account, check out our docs. If you’re interested in checking out an alpha version of the Axiom Keystore module, please get in touch.

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