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Singular

Modular NFT marketplace on Base supporting nestable and equippable EVM standards

NFT marketplace No KYC Founded 2021
Visit singular.rmrk.app
Our score
Fair
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Chains BaseEthereumPolygon
Creator royalties Enforced
Launchpad Yes
Aggregates other markets No
Token RMRK

What is Singular?

Singular is a non-custodial modular NFT marketplace developed by RMRK that focuses on programmable, multi-asset, and composable digital assets. Built originally around RMRK extensible standards, the marketplace primarily runs on the Base network for direct transactions, minting, and equippable inventory interactions, while retaining read capabilities for Ethereum Mainnet and Polygon.

Team and development

The marketplace was built by RMRK, co-founded by Bruno Škvorc alongside lead developers Yuri Petusko (CTO), Yuri Gii, and Ilia. The team authored several modular Ethereum Improvement Proposals, including ERC-5773 (multi-asset), ERC-7401 (nestable), ERC-6220 (equippable), ERC-7409 (emotable), and ERC-6454 (soulbound). While early development originated within the Kusama ecosystem, RMRK completed a full technical pivot toward EVM networksand decommissioned legacy Substrate support in early 2026.

How it works

Singular is wallet-based and requires no centralized account registration. Users connect standard injected web3 wallets such as MetaMask or Coinbase Wallet to sign on-chain actions directly. The platform indexes on-chain equip states and relies on specialized rendering services to compose child NFTs into parent slot items dynamically. In addition to standard fixed-price listings and direct sales, Singular supports GBM incentivized auctions, in which bidders who are outbid receive compensatory payouts.

Fees and access

Trading and minting fees vary depending on the asset listing type and payment path, with exact breakdowns presented in the wallet interface before signing. Creator royalties are enforced on-chain, including nested royalties introduced in January 2024 to distribute secondary payouts across grouped or bundled items. Singular does not mandate KYC checks, and transactions execute directly against deployed smart contracts.

Milestones and risks

Singular has navigated infrastructure restructurings and security events. In January 2026, RMRK disclosed an exploit resulting in the theft of 1.2 million RMRK tokens. Shortly after, the team removed support for Kusama networks to focus exclusively on EVM liquidity, locking permanent liquidity positions on Base comprising 9.17% of the total RMRK token supply. Collectors and creators face liquidity risks common to niche modular standards, as composable NFTs experience fragmented demand compared to traditional ERC-721 collections on generalist platforms.

Founders

Bruno ŠkvorcFounder
Yuri PetuskoCTO, Co-founder Lead Developer
Yuri GiiCo-founder Lead Developer
IliaCo-founder Lead Developer
Best for:Modular and gaming NFT creatorsCollectors trading composable Base NFTsUsers running incentivized GBM auctions

Pros and cons

Pros

  • Native support for advanced composable and nestable NFT standards
  • Non-custodial, wallet-based access with no KYC verification required
  • Nested royalty distribution across bundled and child NFTs
  • Incentivized GBM auction formats that compensate outbid participants

Cons

  • Suffered a security exploit for 1.2 million RMRK tokens in January 2026
  • Discontinued Kusama support, narrowing historical cross-ecosystem reach
  • Trading liquidity on Base remains lower than major retail NFT exchanges
  • Variable trading fees are not fixed into a single published rate

Our review

3.3/5
Fair

Singular leads in modular and composable NFT standards on Base, but narrow multi-chain liquidity and a 2026 security incident limit its appeal for mainstream trading.

Fees3.0
Selection3.0
Ease of use3.5
Creator tools4.5
Trust & safety2.5

Singular is an EVM-focused modular NFT marketplace created by RMRK. Rather than treating non-fungible tokens merely as static media links, the platform specializes in advanced on-chain standards. It natively implements multi-asset formats (ERC-5773), nestable structures (ERC-7401), equippable items (ERC-6220), emotable mechanics (ERC-7409), and soulbound capabilities (ERC-6454). Base operates as its primary network for active modular NFT production, supported by indexing across Ethereum Mainnet and Polygon.

For creators and collectors building interactive projects, Singular delivers functionality standard marketplaces lack. The platform supports nested royalties, which distributes creator royalties across bundled sub-NFTs. Creators can deploy custom modular collections with the RMRK Wizard, convert conventional ERC-721 assets via Upgradooor.app, and use GBM incentivized auctions where outbid participants receive compensation. Account creation requires no KYC, relying entirely on direct non-custodial wallet connections.

The trade-offs reflect its niche architecture. Singular charges variable trading fees that depend on the transaction path, requiring users to inspect checkout interfaces for exact breakdowns rather than relying on a flat fee schedule. Trading volume and discovery concentrate primarily on RMRK ecosystem assets rather than broad cross-market digital art. Historical support for Kusama and selected secondary networks was phased out in early 2026 to reduce maintenance overhead, consolidating activity around EVM execution.

Security history demands caution. RMRK suffered an exploit in January 2026 resulting in the loss of 1.2 million RMRK tokens. Singular suits gaming developers, digital fashion creators, and composable NFT collectors seeking programmable inventory systems. Collectors looking purely for mainstream PFP liquidity or cross-chain market aggregation should look elsewhere.

Listings are researched and drafted with AI assistance from public sources, then checked for accuracy and readability. Spot an error? Tell us. Editorial policy.
Sources (3)

Specs

KYC required ⓘ No · unverified
Chains Base, Ethereum, Polygon · unverified
Creator royalties Enforced · unverified
Focus Art, Collectibles, Gaming · unverified
Launchpad Yes · unverified
Aggregates other markets No · unverified
Mobile app No · unverified
Token RMRK · unverified
Zero marketplace fee No · unverified

Not disclosed by the provider: Marketplace fee, Points or rewards program.

Data from the provider's website and public sources. Fees and availability change; confirm on the official site before you sign up.

Key features

Nestable NFT support

Supports ERC-7401 smart contractsto let tokens own, package, and transfer other NFTs directly inside their inventory.

Equippable rendering

Renders ERC-6220 composable assets, dynamically combining parent NFTs with equippable items into a single visual output.

Multi-asset token compatibility

Executes ERC-5773 standards so a single NFT can store and display multiple file types and media formats.

GBM incentivized auctions

Hosts auction models where participants who are outbid receive automated financial compensation.

Nested creator royalties

Enforces secondary royalty distribution across individual tokens packaged inside nested collections.

EVM multi-chain indexing

Runs production trading on Base while maintaining metadata reading across Ethereum Mainnet and Polygon.

Inside Singular

RMRK Wizard

A creator deployment tool for launching custom RMRK modular contracts without writing code from scratch.

Upgradooor.app

A conversion dApp that upgrades standard ERC-721 NFTs into modular RMRK-compatible tokens.

Emotes.app

An on-chain interaction utility that lets users send emoji reactions directly to compatible NFTs.

GBM Auctions

An incentivized auction mechanism where outbid bidders earn a payout reward for participating.

Singular screenshots

Singular’s NFT marketplace homepage displays navigation, a hero section, supported chains, and featured collections
Singular’s NFT marketplace homepage displays navigation, a hero section, supported chains, and featured collections · Oct 21, 2026
FAQ: FAQ page explaining Singular’s wallet-based modular NFT marketplace and supported networks
FAQ: FAQ page explaining Singular’s wallet-based modular NFT marketplace and supported networks · Oct 21, 2026

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FAQ

Who founded Singular?

Singular was founded by Bruno Škvorc alongside co-founders and lead developers Yuri Petusko, Yuri Gii, and Ilia as part of the RMRK ecosystem.

What fees does Singular charge?

Singular charges variable marketplace fees that depend on the listing type, payment path, and active network. The exact fee breakdown is presented in the transaction interface before you sign.

Is KYC required to use Singular?

No, Singular does not require identity verification or an account. You interact with the marketplace directly by connecting an EVM-compatible Web3 wallet.

Which networks does Singular support?

Base is the primary production network for modular NFT activity on Singular. The platform also maintains multi-network data reads on Ethereum Mainnet and Polygon.

Does Singular have a native token?

Yes, the ecosystem is powered by RMRK's utility token, RMRK.

Has Singular experienced any security incidents?

The RMRK team reported a hack in January 2026 that resulted in the loss of 1.2 million RMRK tokens.

Latest from Singular on X

RMRK.app Official
@RmrkApp · 58K followers
Follow
EXTREME DOGFOODING: Skybreach has been moved to a single simple server, using our own home-rolled replacements for EVM indexer, database, API endpoints, search infra.

The de-vercelification of RMRK is now complete.

We have killed Argo, kubernetes, vercel, typesense, elasticsearch, subsquid as dependencies. We kept @filebase and @Alchemy as essential, everything runs on a tiny server now, at a throughput of around 100x what it was 2 years ago, and at 1% the cost.

But we need your help: if you have lands, go try and interact with Skybreach and report bugs you find! The infra we killed was complex and there may be trailing dependencies left behind that will still break things.

There will be bugs on both Singular and Skybreach while we put the final polish on things, but by the end of the week we should be in a mature "let's now build on top of this" state!

Go forth and explore!
Image attached to the post
4 12 36 2.4K View on X
Singular update: You can now set up sales, offer, and bid notifications via email and telegram in your Dashboard.

As usual, please keep reporting bugs in https://t.co/boHf4Xc2RR and we'll get to them asap. https://t.co/8P1mNQI3GD
Image attached to the post
5 5 26 4.5K View on X
Today we got hacked for 1.2m RMRK. Here's what happened and what's next.

https://t.co/WrTy7oIba6
3 4 19 3.7K View on X
Support for @kusama chains has been removed from https://t.co/yN7IkHALsw.

Bugs not expected but if you find any, report via the link in the footer.

Going forward, based on marketplace fees generated, we will be removing some underperforming EVM chains for which we’ve generously maintained infra all these years.

More info on adding/removing chains soon.
2 6 27 5.2K View on X
Don't forget to claim your metal plates, founders!
3 5 22 3.8K View on X

Recent public posts from @RmrkApp, shown as published. Not reviewed or endorsed by CryptoReview.

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