Basenames
Get so much more on
Base with your profile
Build your onchain identity
Use your Basename as your onchain identity in the Base ecosystem.
Simplify transactions
Send and receive seamlessly with a readable and memorable Basename.
Connect and collaborate
Easily find mentors and others to build with by seeing their profiles.
Questions?
See our FAQ
Get more answers in our FAQ, and view our developer docs to see how you can build with Basenames.
Basenames are a core onchain building block that enable builders to establish their identity on Base by registering human-readable names for their wallet address(es). They are fully onchain, built on the same technology powering ENS names, and deployed on Base. These human-readable names can be used when connecting to onchain apps, and sending and receiving on Base and any other EVM chain.
Basenames are priced based on name length, and are designed to be globally accessible. Annual registration fees are as follows:
| Length | Price |
|---|---|
| 3 characters | 0.1 ETH |
| 4 characters | 0.01 ETH |
| 5-9 characters | 0.001 ETH |
| 10+ characters | 0.0001 ETH |
You can get one free Basename (5+ letters) for one year if you meet any of the below criteria:
- Coinbase Verification
- Coinbase One Verification (free renewals with active subscription)
- Summer Pass Level 3 NFT
- Buildathon participant NFT
- base.eth NFT holder
- cb.id username (acquired prior to Fri Aug 9, 2024)
- BNS name owner - free 4+ letter name (basename.app)
An equivalent-value discount of 0.001 ETH will be applied if registering a shorter name, or registering for more than 1 year, with the exception of the BNS name owner discount (valued at 0.01 ETH per unique address). You will need to pay the standard registration fees if you wish to keep your Basename after your initial discount has been fully applied.
Discounts are only applied once, and are limited to one per address. Even if you meet multiple criteria, you will only be eligible for a single discount on one Basename. If you satisfy multiple criteria, we will automatically apply the highest-value discount to your registration.
We are always looking to add more discounts. If you or your project have ideas for more discounts, please reach out to our team.
You can use your Basename across apps in the Base ecosystem, starting with base.org, Onchain Registry, and Onchain Summer Pass. You can also use it for sending and receiving on Base and other EVM chains.
Basenames are fully onchain, and therefore any information you publish is recorded onchain, requires a transaction, and will be broadly composable with the rest of the ecosystem. Please do not publish any information you do not wish to be onchain.
If you're a builder looking to integrate Basenames into your app, OnchainKit is the easiest way to get started (tutorial here). If you have ideas for new features or badges that you'd like to integrate with Basenames, we'd love to hear from you.