Building a SuperRare-like marketplace for one-of-one digital art

SuperRare is a curated Ethereum marketplace for single-edition digital art. Each work is a one-of-one NFT from an approved artist, sold by auction or offer, with royalties to the artist on resales. Building something similar is less about NFT technology than about running a gallery: curation, artist relationships and collector trust are the product, and the contracts exist to make provenance and payments verifiable.

Where SuperRare fits among NFT marketplaces

NFT marketplaces fall roughly into three groups:

SuperRare sits firmly in the curated group and, unlike Nifty Gateway, does not do editions as its core. One artwork, one token, one owner. That scarcity is the pitch to collectors, and the reason SuperRare's prices historically ran higher than open-market art.

For the open model, see the OpenSea teardown; for timed reserve auctions with lighter curation, the Foundation teardown; for the general art vertical, NFT marketplaces for art.

How SuperRare works

Artist onboarding

SuperRare launched in 2018. Artists apply and are reviewed; accepted artists can mint. The review is the gate that makes the marketplace feel like a gallery. Over time SuperRare also opened curation to others through Spaces: independently run curated galleries inside SuperRare, each with its own curators and artist roster. That scaled curation beyond the core team without dropping the standard to "anyone."

Minting and sale formats

An artist mints a single token per work, with media stored on decentralized storage. The work can then be sold in a few ways:

• Reserve auction: a timer starts when a bid meets the reserve, with extensions for late bids.
• Scheduled auction: a set start and end time.
• Buy now at a fixed price.
• Offers that the owner can accept at any time, including on works not listed for sale.

Fees and royalties

Historically, SuperRare took a commission on primary sales (15%), charged buyers a marketplace fee on purchases (3%), and paid artists a royalty on secondary sales made on SuperRare (10%). Check current terms before using these as a benchmark; the structure is what matters. A gallery-level primary commission funds curation and marketing, while secondary royalties give artists a long-term stake.

As everywhere, royalties are only guaranteed on venues that honor them. A 1/1 traded through a different marketplace may pay nothing to the artist unless the token contract restricts transfers.

The RARE token and DAO

In 2021 SuperRare launched RARE, a governance token distributed in part to past artists and collectors, alongside a DAO that governs a community treasury and parts of the platform. RARE is also used in curation through Spaces. Like most marketplace tokens, its market value has been volatile, and its main lasting use is coordinating curation and grants rather than generating revenue for holders.

Architecture for a SuperRare-style marketplace

Contract details that matter

• Artist-owned contracts. Let each artist mint from a contract they control, deployed cheaply as a minimal proxy (EIP-1167). Provenance stays clear even if your platform changes.
• Auction escrow. Hold the token in the auction contract during an auction, hold the highest bid, and refund outbid bidders with a pull-payment fallback so a contract bidder cannot block the auction.
• Offer escrow. Either escrow offer funds in the contract (simple, capital-heavy) or use signed WETH offers (capital-efficient, requires approvals and validity checks).
• Splits. Collaborations and gallery commissions are paid on-chain at settlement, so artists can verify what they received.
• Upgradeability. Avoid upgradeable token contracts for 1/1 art. Collectors value immutability; keep upgradeability, if any, in marketplace contracts.

Media and permanence

A 1/1 collector paying a serious price wants confidence the artwork will exist in twenty years. Store the original file and metadata on Arweave or pinned IPFS, show content hashes on the artwork page, and avoid HTTP-hosted metadata. For generative or interactive works, store the code and any dependencies too.

Running it like a gallery

The parts of SuperRare that are hardest to copy are not on-chain. A curated 1/1 marketplace needs the same functions a physical gallery has, adapted to an online audience:

• Editorial. Artist interviews, exhibition write-ups and themed shows give collectors context. A work with a story sells better than a work with a price tag.
• Exhibitions. Time-boxed group shows, each with a curator and a theme, create recurring reasons to visit and concentrate collector attention.
• Collector relations. High-value buyers expect someone to answer questions about provenance, condition of the file, display rights and tax paperwork.
• Artist support. Help with pricing, release timing, and preparing files for permanence. Artists who sell well stay; artists who feel ignored leave for other platforms.

There is also a secondary-market role. On a 1/1 marketplace, resales are where collectors see their judgment validated and where artists earn royalties. Make secondary activity visible on artist pages, surface standing offers on unlisted works, and notify artists when their work resells. A healthy secondary market is also your strongest argument when recruiting new artists.

Finally, decide how you treat display rights. Collectors usually receive the token and a license to display the work, not the copyright. Write the license in plain language and link it from every artwork page; ambiguity here causes disputes when a collector wants to print, exhibit or commercialize a piece.

Build process

1. Define the curatorial model. Who decides, on what criteria, how many artists per month, and whether you will run sub-galleries.
2. Choose chains. Ethereum mainnet still carries the most prestige for high-value art. Consider an L2 such as Base for lower-priced work, but start with one.
3. Design and audit contracts. Factory, artist collection template, auction house, offers, splitter. Commission an independent smart contract audit.
4. Build the media pipeline. Upload, pin, transcode for display, generate previews, verify hashes.
5. Build curation tooling. Application intake, reviewer workflow, artist onboarding and verification.
6. Build the collector experience. Artwork pages with provenance timelines, auction rooms with live bid updates, notifications for outbids and auction endings.
7. Seed with artists before launch. A curated marketplace with ten strong artists beats one with a hundred unknowns.
8. Launch, then add offers, secondary features and sub-galleries.

Cost and timeline drivers

As a reasoned estimate: a single-chain curated 1/1 marketplace with artist-owned contracts, auctions, offers, a media pipeline and curation tooling takes roughly four to six months for one smart contract engineer, two full-stack engineers, a designer and part-time QA. The curation team, editorial content and artist relationships are ongoing operating costs that often exceed the engineering budget over a few years. Cost rises with:

• card payments and embedded wallets for non-crypto collectors,
• a token and DAO (contracts, legal review, governance tooling),
• a second chain, and
• physical-artwork pairing (shipping, insurance, authentication).

What to copy and what to avoid

• Copy strict curation at launch and a delegated curation model (like Spaces) to scale later.
• Copy secondary royalties to artists, but be honest about where they are enforced.
• Copy provenance-first artwork pages.
• Avoid launching a token before you have a clear governance role for it.
• Avoid competing on volume; a 1/1 art marketplace succeeds on taste and trust.

Frequently asked questions