For L2s & Rollups

The ENS identity layer for your L2

One shared namespace for every user, app, and contract on your chain. Your chain gets name.yourchain.eth. Live in weeks, built by the ENS DAO-backed team, operated with SLAs.

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See How Celo Did It

860k+ subnames22M resolutions30+ partnersBacked by ENS DAO

How chain identity works

An L2 identity system is a chain-wide naming service for your chain built on ENS. Every user, builder, app, and contract gets a readable name under one root - user.yourchain.eth, or a DNS domain you already own, like yourchain.id - registered on your chain and resolvable everywhere. These names are ENS subnames, surfaced to your users as usernames. Namespace designs, builds, and operates the whole stack as an official ENS service provider: registrar and resolver contracts, CCIP-Read gateways, indexers, and the registration frontend. The names resolve across 100+ chains and in 1,000+ apps from day one, so your chain's identity is legible far outside its own ecosystem.

L1 and L2 chainsShared across ecosystemsStandards-basedFree implementationProd-ready in weeks

01The problem

Why L2s need an identity layer

Your chain has no native concept of who anyone is.

Users arrive as addresses and stay as addresses. There is no handle to build a profile against, no way for an app to greet a returning user by name, and nothing for social features to hang on.

Every ecosystem app rebuilds identity separately.

Without a shared namespace, each app on your chain invents its own username system. The result is fragmentation, duplicated effort, and identity that dies at the app boundary instead of belonging to the chain.

Your competitors already shipped.

Coinbase built Basenames under base.eth with 2.7 million subnames. World runs world.id usernames on ENS with 17 million subnames. Uniswap operates uni.eth and has issued more than 2 million usernames. Linea runs Linea Names under linea.eth with more than 530,000 subnames. Celo uses celo.eth.

A proprietary naming service solves the wrong problem.

Building your own naming service outside of ENS means no wallet resolves it, no explorer displays it, and no dApp integrates it at launch. You would be starting the network effect from zero and dealing with the cold-start problem, while an ENS-powered namespace taps into the 1,000+ integrations ENS already has on day one.

02Why chains do this

Benefits

One namespace for the whole chain

Users, builders, apps, and contracts share a single root. No per-dApp identity fragmentation.

No identity cold start

An ENS-powered naming system plugs your chain into the entire ENS ecosystem. Your identity layer launches with distribution, not from zero.

Users arrive named

New users claim a name once and carry it into every dApp on your chain - no per-app identity setup with portable ENS identity.

Your brand in every transaction

Every name.yourchain.eth displayed in another app is free distribution for your chain.

Revenue when you want it

Free names for growth, premium and short labels for revenue. You set the pricing.

Zero protocol-team time

Namespace builds and operates the whole stack with SLAs. Your engineers stay on the roadmap.

03In your product

What a chain identity system includes

A name for every user

alice.yourchain.eth, claimable through a registration site we build and brand for you, or directly inside ecosystem wallets and apps.

Profiles, not just handles

Avatar, bio, socials, and address records across chains, stored as standard ENS records under your namespace.

Optional verificationfor Sybil resistance

Celonames pairs registration with Self, so a user can prove they are a real person before minting. Verification and identity become one flow instead of two.

Names for contractsand infrastructure too

Label your bridges, your ecosystem contracts, and your official addresses.

Decentralized websites

Names can point to IPFS-hosted frontends via contenthash records - app.yourchain.eth becomes a censorship-resistant mirror of your ecosystem's critical apps.

One root. A whole ecosystem under it.

People, apps, validators, bridges, and DAOs all live under yourchain.eth.

Distribution

Resolves everywhere, day one

A forked naming protocol starts from zero integrations. An ENS-based namespace works in every major wallet from day 1.

Operation

We run it. You announce it.

Resolvers, gateways, indexing, monitoring and ENS protocol updates are Namespace's job, backed by SLAs. Your protocol engineers stay on the roadmap.

Policy & revenue

Your root, your rules

Free names for growth, premium names for revenue, onchain on your L2 or gasless offchain at volume. The namespace is yours; we make it work.

Case study · Celo x Namespace

An entire chain's identity layer, live in weeks

Situation. Celo wanted one namespace every user and builder on the chain could share, without pulling protocol engineers off the roadmap.

Built. Celonames with registrar and resolver contracts, Self verification for Sybil resistance, a CCIP-Read gateway, an indexer, and the registration frontend at names.celo.org.

Result. Every Celo user can claim a name and use it in any ENS-aware wallet or app. Namespace operates the stack as a multi-year partnership with SLAs.

"Our experience working with Namespace has been exceptional. Their team combines strong technical expertise with clear communication and a true spirit of partnership."

Kate - Head of Product & GTM at Celo

See Celonames live Read the ENS blog post

04Under the hood

The architecture of an ENS-powered namespace

Root ownership

Your foundation holds yourchain.eth - or your existing DNS domain, imported into ENS - on Ethereum L1. That ownership is yours and never sits with us.

Registrar on your chain

Registration, pricing, renewals, and permissions run in contracts deployed on your L2, so users transact on their home chain with your gas token.

Resolution

A CCIP-Read gateway (ERC-3668) plus wildcard resolution (ENSIP-10) makes those L2 names resolve from Ethereum L1 and from every ENS-aware app. An event indexer keeps names queryable through an API, and a metadata service renders NFT images for onchain names.

Your registrar, your rules

Registration policy is yours to set.We implement and operate it.

Near-zero claim fees on your chain

Fees paid in your gas token

Custom pricing and renewals

Reserved and premium names

Partner whitelists at launch

Sybil protection via verification

Use the domain you already own (.id, .me)

05Timeline

Scoping call to live namespace

Week 1

Scope

Root name, registration rules, pricing model and launch plan, designed with your team.

Weeks 2-3

Deploy

Namespace deploys resolvers and infrastructure, wires SDK and API points for your wallets and dApps.

Week 4

Launch

Your ecosystem claims names under the root. Announcement, docs and integration support included.

Ongoing

Operate

SLAs, monitoring and protocol updates, the same multi-year partnership Celo and Filecoin run on.

06What you get

What we deliver

Everything a chain namespace needs, built and operated end to end.

Full contract suite

Registry, registrar, resolver, and controller contracts for L1 and your L2.

CCIP-Read gateway

Deployed and operated, or handed over for you to run.

Indexer

Event indexing with a queryable API for names, records, and history.

Registration frontend

A branded claim site, or prebuilt UI components for your own app.

Metadata service

Dynamic NFT images for minted names.

Resolution service

Free, API-first resolution with bulk lookups and caching.

Ecosystem dev support

AI-ready Dev Docs, API or SDK, and direct support for your builders.

Open source

Our infrastructure code is public. Read exactly what you are implementing.

07Why Namespace

Why blockchains choose Namespace

Namespace is the ENS DAO-backed service provider.

Build it yourself, or don't

In-house

Namespace

Registrar and resolver contracts

You write, audit and maintain

Designed, deployed and monitored

CCIP-Read gateway

You run it, and its uptime is yours

Managed and monitored

Indexing and metadata

Your on-call rotation

Included

Standards work

You track ENSIPs yourself

Follow and actively contribute.

Engineering to production

Quarters of protocol-team time

Weeks

Subname expertise

You start from zero

Experts in offchain, L1, and L2 subnames

Lock-in

None, but you maintain it all

None: user-owned NFTs, standard ENS records

860k+Subnames issued

22MResolutions served

30+Partnerships and integrations

221Namespaces issuing subnames with us

Trusted byCeloFilecoinPOAPUnicorn

ENS DAO Service Provider

The business case

Naming is ecosystem revenue and retention. Chains price names by length and earn on annual renewals and premium names - while every named user carries the chain's brand into every ENS-enabled app they touch.

Tiered pricing by name length, set by you
Annual renewals as recurring revenue
Reserved and premium names
A shared namespace raises switching costs

Our pricing, plainly

The build is free or subsidized - Namespace is funded by the ENS DAO. If names are free for your users, we charge nothing. We charge only on priced subnames and only earn when you do.

FreeOffchain subnames and the build, ENS DAO funded

5%On paid onchain mints through our infra

5-10%On mints when we build your integration for free, routed to the ENS DAO

FAQ

Questions teams ask us

How did Celo launch Celonames?

Celo partnered with Namespace to build Celonames - ENS-based names under celo.eth for the entire Celo ecosystem. Namespace designed the architecture, built the infrastructure, and continues to operate it as a long-term partner.

Why build on ENS instead of our own naming protocol?

Distribution. ENS already resolves in 1,000+ apps, every major wallet, and 100+ chains. A greenfield protocol starts from zero integrations; an ENS-based namespace works across web3 on day one while still being fully yours.

Can we use our existing domain instead of a .eth name?

Yes. ENS supports DNS domains through DNSSEC integration, so a domain like yourchain.id or yourchain.me can issue names exactly like a .eth root. World runs world.id usernames this way - 17 million of them. Your namespace lives under the brand you already own.

Should we issue names onchain on our L2 or offchain?

Onchain on your chain is the usual answer for an L2, because it keeps ownership with users, keeps transactions on your chain, and supports renewals as a revenue line. Offchain is better for free bulk issuance, airdrops, and early testing. Many chains run both.

Do we need to own a .eth name first?

Yes, and you should own it directly. Most chains already hold theirs. If not, we help you acquire it. The root stays in your control at all times.

Will these names resolve outside our chain?

Yes. That is the point of building on ENS. Names resolve on Ethereum L1 and in every ENS-aware wallet, explorer, and dApp, across 100+ supported chains, through ENSIP-10 and ERC-3668.

What are the trust assumptions?

For onchain names on your chain, ownership is enforced by contracts you control, and resolution back to L1 relies on CCIP-Read gateways whose responses are verifiable. For offchain names, the issuing server is trusted for issuance but not for ownership of the root. We publish the architecture rather than asking anyone to take it on faith.

Can we require identity verification before minting?

Yes. Celonames integrates Self so users can prove personhood before minting. Any verification provider can be wired into the registrar the same way.

Can we migrate an existing naming system to ENS?

Yes. POAP migrated its naming infrastructure to Namespace with no downtime for users. Migrations are scoped case by case.

Who operates the infrastructure after launch?

Namespace does - resolvers, gateways, indexing, monitoring, and ENS protocol updates, backed by SLAs. Celo and Filecoin run this way today. Your team gets an identity layer without an identity department.

Can dApps on our chain issue their own subnames?

Yes. Builders can issue names under the chain root (app.yourchain.eth) or their own namespaces, using the same SDK and API. Your namespace becomes ecosystem infrastructure other teams build on.

How long does an integration take?

Most chains go from scoping to launch in about four weeks. Namespace works with your team from initial scoping through launch and post-launch support - including SDK integration, resolver setup, and custom configuration.

What happens if Namespace disappears?

Your names are not trapped. ENS records are portable, resolvable, and recoverable through standard ENS mechanisms. Onchain subnames are user-owned NFTs; offchain subnames can be migrated. Namespace is infrastructure - not a custodial lock-in.

Join 30+ Partners

Wall of Love

The Namespace team have been very proactive and supportive of our timelines to build an integrations with our offering. Definitely recommend working with them!

Joan

Founder of OpenFort

Namespace has been a core partner for PinMe. Their APIs are extremely easy to use, their subdomain infrastructure is stable and built for the long term.

Ted

Co-founder of PinMe

ENS is the future, and Namespace offers critical tools for making that happen

brantly.eth

Founder of EFP

Namespace is providing a magical service. They made issuing thousands of subdomains for ETHDenver attendees simple and nearly effortless.

Griff.eth

Founder of Unicorn & Giveth

When I was exploring ways to launch a local onchain music community, Namespace immediately came to mind. Their tooling made it effortless.

Marcus

ENS DAO

Y'all are killing it and I think every product should have their own subname. And y'all are now my go-to rec. Love y'all 💛

Jesse Pollak

Founder of Base

Our collaboration with Namespace and the Web3.js Plugin went really well. The plugin enabled developers to register and interact with ENS domains.

Santiago

DevRel at Web3js

Namespace helped PizzaDAO's members mint subnames to show their affiliation all over the metaverse. The pizza flavored minting website is *chef's kiss*.

snax.eth

Head of Stuff at PizzaDAO

The Namespace team have been very proactive and supportive of our timelines to build an integrations with our offering. Definitely recommend working with them!

Joan

Founder of OpenFort

Namespace has been a core partner for PinMe. Their APIs are extremely easy to use, their subdomain infrastructure is stable and built for the long term.

Ted

Co-founder of PinMe

ENS is the future, and Namespace offers critical tools for making that happen

brantly.eth

Founder of EFP

Namespace is providing a magical service. They made issuing thousands of subdomains for ETHDenver attendees simple and nearly effortless.

Griff.eth

Founder of Unicorn & Giveth

When I was exploring ways to launch a local onchain music community, Namespace immediately came to mind. Their tooling made it effortless.

Marcus

ENS DAO

Y'all are killing it and I think every product should have their own subname. And y'all are now my go-to rec. Love y'all 💛

Jesse Pollak

Founder of Base

Our collaboration with Namespace and the Web3.js Plugin went really well. The plugin enabled developers to register and interact with ENS domains.

Santiago

DevRel at Web3js

Namespace helped PizzaDAO's members mint subnames to show their affiliation all over the metaverse. The pizza flavored minting website is *chef's kiss*.

snax.eth

Head of Stuff at PizzaDAO

The Namespace team have been very proactive and supportive of our timelines to build an integrations with our offering. Definitely recommend working with them!

Joan

Founder of OpenFort

Namespace has been a core partner for PinMe. Their APIs are extremely easy to use, their subdomain infrastructure is stable and built for the long term.

Ted

Co-founder of PinMe

ENS is the future, and Namespace offers critical tools for making that happen

brantly.eth

Founder of EFP

Namespace is providing a magical service. They made issuing thousands of subdomains for ETHDenver attendees simple and nearly effortless.

Griff.eth

Founder of Unicorn & Giveth

When I was exploring ways to launch a local onchain music community, Namespace immediately came to mind. Their tooling made it effortless.

Marcus

ENS DAO

Y'all are killing it and I think every product should have their own subname. And y'all are now my go-to rec. Love y'all 💛

Jesse Pollak

Founder of Base

Our collaboration with Namespace and the Web3.js Plugin went really well. The plugin enabled developers to register and interact with ENS domains.

Santiago

DevRel at Web3js

Namespace helped PizzaDAO's members mint subnames to show their affiliation all over the metaverse. The pizza flavored minting website is *chef's kiss*.

snax.eth

Head of Stuff at PizzaDAO

Our experience working with Namespace has been exceptional. Their team combines strong technical expertise with clear communication and a true spirit of partnership.

Kate

Head of Product & GTM @ CELO

From simple to complex Subname needs, Namespace has the tools and expertise to make it happen. Fully recommend.

Simon

Lead DevRel @ ENS Labs

You've developed an innovative and frictionless way for people to monetize their domains, empowering users to unlock new value with ENS.

Alex Netto

Founder of Blockful

We have found in Namespace an efficient partner that quickly understood our needs and provided very solid solutions

Patricio

Founder of POAP

Namespace has quickly become the go-to platform for managing ENS subnames. What was once confusing and error-prone is now a streamlined, intuitive experience.

Ben

Co-founder of ETH.LIMO

Namespace is the best tool for creating and issuing ENS subdomains, I think. The dashboard is very easy to use.

Sahil

DevRel at QuickNode

The Namespace team is incredibly friendly and a pleasure to work with. Their passion and dedication to the ENS ecosystem are evident in everything they do.

Thomas Clowes

Co-founder of Unruggable

Our experience working with Namespace has been exceptional. Their team combines strong technical expertise with clear communication and a true spirit of partnership.

Kate

Head of Product & GTM @ CELO

From simple to complex Subname needs, Namespace has the tools and expertise to make it happen. Fully recommend.

Simon

Lead DevRel @ ENS Labs

You've developed an innovative and frictionless way for people to monetize their domains, empowering users to unlock new value with ENS.

Alex Netto

Founder of Blockful

We have found in Namespace an efficient partner that quickly understood our needs and provided very solid solutions

Patricio

Founder of POAP

Namespace has quickly become the go-to platform for managing ENS subnames. What was once confusing and error-prone is now a streamlined, intuitive experience.

Ben

Co-founder of ETH.LIMO

Namespace is the best tool for creating and issuing ENS subdomains, I think. The dashboard is very easy to use.

Sahil

DevRel at QuickNode

The Namespace team is incredibly friendly and a pleasure to work with. Their passion and dedication to the ENS ecosystem are evident in everything they do.

Thomas Clowes

Co-founder of Unruggable

Our experience working with Namespace has been exceptional. Their team combines strong technical expertise with clear communication and a true spirit of partnership.

Kate

Head of Product & GTM @ CELO

From simple to complex Subname needs, Namespace has the tools and expertise to make it happen. Fully recommend.

Simon

Lead DevRel @ ENS Labs

You've developed an innovative and frictionless way for people to monetize their domains, empowering users to unlock new value with ENS.

Alex Netto

Founder of Blockful

We have found in Namespace an efficient partner that quickly understood our needs and provided very solid solutions

Patricio

Founder of POAP

Namespace has quickly become the go-to platform for managing ENS subnames. What was once confusing and error-prone is now a streamlined, intuitive experience.

Ben

Co-founder of ETH.LIMO

Namespace is the best tool for creating and issuing ENS subdomains, I think. The dashboard is very easy to use.

Sahil

DevRel at QuickNode

The Namespace team is incredibly friendly and a pleasure to work with. Their passion and dedication to the ENS ecosystem are evident in everything they do.

Thomas Clowes

Co-founder of Unruggable

alice.yourchain.eth

Make your chain a place with names

Talk to the team that built Celonames. We'll scope your chain's identity layer on the call - architecture, timeline, and pricing.

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