In the rapidly evolving world of blockchain technology, consensus on standards is a crucial factor that determines how smoothly users can move assets and interact with decentralized applications. Over the past several months, developers from the Ethereum ecosystem and the emerging Base network, a layer‑2 solution backed by Coinbase, have been locked in intensive negotiations to create a common wallet standard that would simplify cross‑chain transactions. The goal was to design a single set of rules that both networks could adopt, allowing a single wallet interface to handle transactions on Ethereum and Base without requiring users to switch between different protocols or user experiences.
Despite the best intentions and a series of technical workshops, the two communities ultimately decided to part ways on the matter. Ethereum will move forward with the implementation of EIP‑8141, a proposal that introduces a new transaction format tailored to the needs of the Ethereum mainnet and its existing ecosystem of smart contracts, tooling, and user interfaces.
At the same time, Base has committed to adopting EIP‑8130, a separate proposal that aligns more closely with the design goals of the Base layer‑2, including lower gas costs, faster finality, and specific compatibility considerations for Coinbase’s infrastructure. The decision to abandon a unified standard carries several implications for developers, wallet providers, and end‑users. First, it means that wallets that aim to support both Ethereum and Base will now need to implement two distinct transaction handling mechanisms.
This adds a layer of complexity to wallet codebases, as developers must ensure that the correct EIP is applied based on the network a user is interacting with. For example, a wallet that previously relied on a single signing flow will now have to detect whether a transaction is destined for Ethereum (and therefore use the EIP‑8141 schema) or for Base (requiring the EIP‑8130 schema).
The detection logic must be robust, as a mistake could result in failed transactions, lost fees, or even security vulnerabilities. Second, decentralized applications (dApps) that operate on both chains will need to adjust their backend logic. Many dApps currently use a single smart‑contract interface that abstracts away network differences, allowing users to interact with the same UI regardless of the underlying chain. With the divergence of wallet standards, dApp developers must now incorporate conditional logic that selects the appropriate transaction format when prompting users to sign actions.
This could involve additional API calls to query the network’s supported EIP, or the implementation of a middleware layer that translates between the two formats. Third, the split may affect the broader goal of interoperability that many in the blockchain community champion. A unified wallet standard was seen as a stepping stone toward a more seamless multi‑chain experience, where assets could be moved effortlessly and where developers could write code once and deploy it everywhere. By choosing separate paths, Ethereum and Base are signaling that they prioritize optimizing their own networks over immediate cross‑chain convenience.
While this approach may yield performance gains for each individual chain, it also places the onus on third‑party developers to bridge the gap. Why did the talks break down?
According to insiders, the primary points of contention centered around transaction fee models and the handling of calldata. EIP‑8141 proposes a fee structure that remains closely tied to Ethereum’s legacy gas model, emphasizing predictability for existing users.
In contrast, EIP‑8130 introduces a more aggressive fee reduction mechanism designed to leverage Base’s roll‑up architecture, which can batch multiple transactions together and settle them on Ethereum’s mainnet at a lower cost. Aligning these two fee philosophies proved challenging, as each side feared that compromising would either dilute the economic incentives of their network or undermine user experience. Another area of disagreement involved the encoding of transaction data.
Ethereum’s EIP‑8141 retains a format that is backward compatible with older contracts, ensuring that legacy applications continue to function without modification. Base’s EIP‑8130, however, adopts a more compact encoding scheme that reduces on‑chain data size, thereby cutting costs further.
While technically advantageous for Base, this change would require Ethereum contracts to be updated or wrapped, a prospect that many developers found unappealing. Despite the split, both networks remain committed to enhancing user experience in their own ways. Ethereum’s EIP‑8141 is slated for inclusion in an upcoming hard fork, with extensive testing already underway on testnets.
The proposal includes improvements such as clearer error messages, better replay‑protection mechanisms, and support for new signature types that could eventually pave the way for more advanced account abstractions. Meanwhile, Base’s adoption of EIP‑8130 is being positioned as a catalyst for rapid onboarding of users who are attracted by lower transaction costs and faster confirmation times.
Base plans to integrate the new standard into its developer SDKs, providing comprehensive documentation and migration guides to help existing Ethereum developers transition their contracts and tooling. For wallet providers, the pragmatic path forward involves building flexible architecture that can support both standards without sacrificing security. Many leading wallets have already announced roadmaps that include dual‑EIP support, with modular signing modules that can be swapped out depending on the target network.
Some are even exploring the possibility of abstracting the differences away from the end‑user entirely, offering a seamless experience that automatically selects the correct transaction format behind the scenes. In summary, the abandonment of a common wallet standard between Ethereum and Base reflects the natural tension between universal interoperability and network‑specific optimization.
While it introduces short‑term challenges for developers and users alike, it also opens the door for each ecosystem to innovate according to its own priorities. As both EIP‑8141 and EIP‑8130 move toward implementation, the broader blockchain community will be watching closely to see how effectively wallets and dApps can adapt, and whether future collaborations might eventually bring the two standards closer together or even converge into a new, hybrid solution.