In recent weeks, two of the most prominent blockchain platforms—Ethereum and Base—have announced that they will no longer pursue a unified wallet standard after months of negotiations. The decision marks a pivotal shift in how developers, wallet providers, and end‑users will interact with the two ecosystems, as each network now backs a distinct improvement proposal: Ethereum is moving forward with EIP‑8141, whereas Base, the Layer‑2 solution backed by Coinbase, has committed to EIP‑8130.
This divergence means that applications and wallets that aim to serve users on both chains must now accommodate two separate transaction models, each with its own set of rules, data structures, and user‑experience considerations. ### Background: The Quest for a Common Standard The idea of a shared wallet standard emerged from the broader goal of simplifying cross‑chain activity.
As the decentralized finance (DeFi) landscape expanded, users began to hold assets on multiple networks, often needing to move tokens, sign contracts, or interact with dApps across different layers. A single, interoperable wallet standard would have allowed developers to write one set of code that could be used on both Ethereum’s mainnet and Base’s rollup, reducing friction and lowering development overhead. Early in 2023, a working group of engineers from both ecosystems drafted a proposal that combined the best features of existing Ethereum Improvement Proposals (EIPs) with new mechanisms tailored for Layer‑2 scalability. The resulting document, initially dubbed the "Unified Wallet Interface," aimed to standardise transaction formatting, signature verification, and gas‑payment handling.
The community responded positively, and several major wallet providers began prototyping support. ### Why the Split Happened Despite the initial enthusiasm, technical disagreements soon surfaced.
Ethereum’s core developers argued that any standard must preserve the security guarantees and deterministic execution model that have defined the network since its inception. They emphasised the need for backward compatibility with existing contracts and the importance of keeping the transaction payload as lightweight as possible to minimise on‑chain costs.
Base, on the other hand, was focused on leveraging its position as a roll‑up to introduce novel features that could improve user experience, such as batch‑processing of signatures and flexible fee‑payment options that allow users to pay gas in tokens other than ETH. The Base team championed EIP‑8130, which incorporates these enhancements and is specifically designed for the optimistic roll‑up architecture that underpins the network. After several rounds of technical review, it became clear that reconciling the two visions would require substantial compromises from both sides. Ethereum’s community was reluctant to adopt the more complex fee‑payment mechanisms, fearing they could introduce attack vectors or increase the cost of verification on the main chain.
Conversely, Base’s engineers felt that limiting themselves to Ethereum’s stricter constraints would negate the performance and usability gains that their Layer‑2 solution could otherwise deliver. ### The Final Decisions In a joint statement released in early August, the Ethereum Foundation confirmed that it would proceed with EIP‑8141, an improvement that refines transaction encoding, introduces optional fields for future extensions, and streamlines the way wallets construct and broadcast signed messages. EIP‑8141 retains the classic "nonce‑gas‑price‑to‑value‑data" structure while allowing optional metadata that can be ignored by legacy clients, ensuring a smooth migration path. Base announced that it would adopt EIP‑8130, a proposal that expands on the base transaction format to support multi‑signature aggregation, alternative fee tokens, and a more expressive calldata schema.
EIP‑8130 is tailored to the optimistic roll‑up environment, where transaction finality is delayed but throughput is higher. The new format also includes a built‑in replay‑protection mechanism that aligns with Base’s security model. Both teams expressed a willingness to maintain open communication and to provide bridging tools that can translate between the two formats where necessary. However, they made it clear that a single, universal wallet standard will not be forthcoming in the near term.
### Implications for Developers and Users For developers, the immediate impact is a need to support dual transaction pathways. Wallet SDKs will have to detect the target chain and construct the appropriate payload, whether that follows EIP‑8141 for Ethereum or EIP‑8130 for Base.
This adds a layer of complexity, but many SDK maintainers have already begun integrating conditional logic into their libraries. From a user‑experience perspective, the split could initially cause confusion. Users accustomed to a single signing flow may encounter different prompts when interacting with dApps on Base versus those on Ethereum.
To mitigate this, wallet interfaces are expected to clearly indicate which network they are operating on and explain any additional steps, such as selecting a fee token on Base. On the positive side, the divergence allows each network to optimise its transaction model for its specific use case. Ethereum can continue to prioritise security and backward compatibility, while Base can experiment with more advanced fee structures and signature schemes that could eventually influence broader industry standards. ### Looking Ahead While the abandonment of a common wallet standard may seem like a setback for cross‑chain harmony, it also reflects the maturity of the ecosystem.
Both Ethereum and Base are now large enough to pursue tailored solutions that best serve their communities. Industry observers predict that over time, middleware services and cross‑chain bridges will evolve to smooth over the differences, offering users a seamless experience despite the underlying technical disparity. In the meantime, developers are encouraged to stay up‑to‑date with the specifications of EIP‑8141 and EIP‑8130, test their applications on both networks, and contribute feedback to the respective working groups. As the blockchain space continues to grow, the ability to adapt to multiple standards may become a valuable skill rather than a hindrance.
Ultimately, the decision underscores a broader trend: rather than forcing a one‑size‑fits‑all solution, the community is embracing a more modular approach where each layer can innovate independently while still maintaining pathways for interoperability. This philosophy could pave the way for future standards that are both flexible and robust, ensuring that users enjoy the benefits of rapid development without sacrificing security or usability.