White Label Art Online Auction Marketplace

A configured no-code builder (Sharetribe from ~$99/mo Lite, Kreezalid approximately €249/mo, My Marketplace Builder from $83/mo) costs $99–$249/mo plus per-transaction fees — with $0–$5,000 in upfront setup and branding. However, if you need real timed/live auction mechanics, buyer's premium calculation, or consignment workflows, expect an additional $5,000–$20,000+ in custom development on top of those fees. A full custom build from RapidDev is $13,000–$25,000 one-time with no per-transaction fees and full code ownership.

A simple branded listing board on Sharetribe or Kreezalid can be configured in 2–4 weeks. A genuine auction platform — with timed countdown, proxy bids, buyer's premium, and consignment intake — takes 6–10 weeks whether you build on top of a no-code platform or commission a custom build. The #1 stall point is payment processor onboarding and KYC setup for high-value lots, which can add 1–2 weeks to any timeline.

You possess the data — bid history, consignor records, buyer accounts, lot information — in the sense that it exists in your account. But you do not own the infrastructure or the database, and export terms vary widely. Some builders provide only a CSV dashboard export; raw database access is rarely guaranteed. Ask for export terms in writing before signing any agreement. With a custom build, you own the entire database and codebase from day one.

Sharetribe includes reverse-auction and price-negotiation flows, but these are gated to higher tiers and require Sharetribe Extend (custom code development) for a true timed-bidding experience. Sharetribe does not natively ship per-second countdown timers, proxy bids, anti-sniping extensions, or buyer's-premium commission math. It is the closest no-code option for auction-adjacent features, but a real auction engine is custom work even on Sharetribe.

EU and UK art-market AML regulations require auction houses and dealers to perform due diligence on high-value transactions — specifically identity verification and transaction monitoring above certain thresholds. US obligations are tightening under the Anti-Money Laundering Act. Practically, this means integrating a KYC provider for bidder verification on high-value lots, maintaining records, and potentially registering with your national financial intelligence unit. No off-the-shelf marketplace builder includes AML-compliant KYC tooling — it is a custom integration in every case.

A Sharetribe deployment at $149/mo plus custom auction-engine development of roughly $10,000 costs approximately $15,400 over 3 years (development + subscriptions) and leaves you on Sharetribe's roadmap without code ownership. A custom build at $13,000–$25,000 one-time plus ~$100/mo hosting costs $16,600–$28,600 over 3 years — comparable or slightly higher, but you own the code, there are no per-transaction fees, and you are not rebuilding when the builder hits an extensibility wall.

Yes. RapidDev builds custom auction marketplaces in 6–10 weeks at a fixed $13,000–$25,000 — including timed auction engine with countdown and anti-sniping, buyer's premium math, consignment intake, KYC integration for high-value lots, and Stripe Connect escrow. You receive full source code and own your bidding data outright. Book a free scoping call at rapidevelopers.com.

With a custom build, yes — simulcast bidding (online + room bidding in sync) is a standard architectural requirement for physical auction houses adding online access. No off-the-shelf marketplace builder supports simulcast bidding. Sharetribe's timed listings can approximate online-only timed auctions but cannot synchronize with a physical paddle room in real time.