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Base

Base is an Ethereum layer 2 for EVM contracts with ETH fees. After launching with OP Stack, it announced a move towards its own unified stack in 2026; integrations should follow current specifications. Each product checks assets, wallet support and confirmation states on the selected network; ecosystem affiliation does not establish distribution or the product’s regulatory status.

Written by Isaac GonzálezUpdated October 11, 2026

Key takeaways

  • Base provides a layer 2 EVM environment for Ethereum applications.
  • Onboarding depends on integrated wallets, assets and services.
  • An ecosystem connection does not guarantee automatic access to its users.

What is Base?

Base is an Ethereum layer 2 network initially developed by Coinbase and compatible with EVM applications. It uses ETH for fees and supports Solidity contracts. Applications can use available tools and services without this implying Coinbase endorsement or automatic access to its users.

Base launched with OP Stack. In February 2026 its team announced a move towards a unified Base-operated stack. Architecture and node versions should therefore be checked against current Base specifications rather than inferred solely from the network's launch configuration and earlier ecosystem descriptions.

How it works

The network executes transactions and publishes information linking its state to Ethereum. Integrations distinguish execution confirmation, publication and finality using the signals exposed by the protocol. Status presented to users should match the actual operation, particularly when a bridge is involved.

Applications configure RPC endpoints, chain ID, contracts and wallets. Smart account and sponsorship capabilities need assessment against available versions. A roadmap announcement should not become an assumed product feature until activation and support have been verified with the components the application will actually use.

What Base offers

Base can fit web applications with frequent interactions when their required assets and services are available. A membership programme can combine issuance, renewal and access checks, while a smart account may simplify selected authorisations where the chosen wallet supports them.

A prototype should cover connection, signing, rejection and session recovery. It should also test insufficient ETH for gas and exhausted sponsorship budgets. The useful outcome is an experience that explains permissions and supports operation recovery, rather than only a contract that deploys successfully to a compatible environment.

Limitations and selection criteria

The Coinbase relationship does not determine an application's regulatory status or guarantee distribution. Products retain responsibility for contracts, terms, custody and integrations. Network upgrade permissions, bridge components and RPC availability belong in the technical assessment alongside application-specific risks.

Comparison with other layer 2 networks should use actual dependencies: assets, oracles, wallets and withdrawal needs. Teams should also track stack changes to keep nodes and tooling compatible. Neither gas costs nor network features remain constant throughout a project's life, so maintenance needs to be part of selection.

Also known as

  • Coinbase Base
  • Base L2
  • Base mainnet
Development at Metlabs

How we approach a project with Base

Development capabilities and use cases to assess how Base fits your product.

What we build with Base at Metlabs

  • EVM applications

    Contracts and interfaces tracking signing, submission and confirmation.

  • Smart accounts

    Assessment of permissions and sponsorship supported by selected wallets.

  • Use case

    Membership and access

    Credential issuance and renewal with session recovery and permission controls.

  • Use case

    Payment flows

    Collection and refunds checking assets, fees and outcome reconciliation.

Related content

Go deeper on Base

Other Metlabs pages that expand on this entry.

Building on Base?

We analyze your case, pick the right stack and ship a production-ready solution.

Tell us about your project

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