Building a Trusted P2P Marketplace for Precious Metals
Grabodo delivered an exceptional platform that transformed how precious metals enthusiasts connect and trade.
Intro
Grabodo built PeerMetals from the ground up - a peer-to-peer marketplace for precious metals where sellers prove authenticity, buyers check reputations, and escrow holds the funds until delivery is confirmed. Over $20M in orders were protected in 2025, across 4,200+ verified reviews.
PeerMetals is a decentralized, community-driven marketplace for precious metals and numismatics. The platform enables secure P2P transactions through seller verification, escrow services, and social engagement features, creating a trusted environment for collectors and traders worldwide.
The Background
Many users on Reddit's r/Pmsforsale faced challenges in verifying seller trustworthiness and facilitating secure transactions for precious metals and numismatics. The lack of centralized features for proof systems, user verification, and integrated payment systems created risks of fraud and made transactions cumbersome.
Recognizing these gaps, there was a clear need for a decentralized yet trustworthy platform that could combine the authenticity of peer-to-peer trading with the security and transparency of modern technology.
The Challenge
The challenge was to design a platform that balanced decentralization with trust, ensuring sellers could verify their authenticity without compromising the peer-to-peer nature of transactions.
Incorporating blockchain technology for transparency while maintaining user-friendly interfaces was crucial. Users needed tools to verify precious metals, establish reputations, engage with the community, and complete transactions securely through escrow and integrated payment options.
The Solution
- 01PeerMetals ships a Proof System: sellers evidence authenticity with photographs, certifications and detailed descriptions, so a listing carries its own paper trail.
- 02A Reputation System lets buyers rate sellers and read feedback from previous transactions, turning repeat behaviour into a visible, portable trust signal.
- 03An Escrow Service holds funds until the buyer confirms receipt, removing the leap of faith that makes peer-to-peer trading risky for both sides.
- 04Social features - forums, private messaging and live chat - keep collectors and investors talking, so the marketplace behaves like a community rather than a listings board.
- 05Payment gateways cover credit and debit cards alongside crypto, so buyers settle the way they prefer without leaving the platform.
- 06Live spot pricing runs through the whole catalogue: Spot Deals surface listings at or below the day's metal price, and every card shows the premium or discount against spot as it moves.
- 07Auctions and a Bids & Offers flow sit alongside fixed-price listings, so sellers can run timed sales and buyers can negotiate without leaving the order pipeline.
The Results
- 01A trusted marketplace that bridges decentralisation with security: sellers verify authenticity and build reputations, buyers transact on a transparent platform.
- 02Blockchain-backed transaction tracking, escrow and social features together changed how precious metals and numismatics are traded online.
- 03Over $20M in orders protected in 2025, with a 5.0 average rating across 4,200+ verified reviews.
- 04Thousands of live listings across silver, gold, copper, platinum, certified and graded coins, Goldbacks and hand-poured bars - breadth that keeps collectors returning rather than shopping around.
- 05Repeat demand is measurable: best-selling listings now run into the thousands of orders each, with established dealers building six-figure Metal Points balances.
- 06The marketplace grew past listings into a channel of its own - auctions, live streams, a social feed, referrals and a weekly podcast keeping the community active between purchases.
The Achievement
- Launched a fully functional P2P marketplace with seller verification and reputation systems
- Implemented secure escrow services protecting both buyers and sellers
- Integrated blockchain technology for transparent transaction tracking
- Built an engaged community through forums, messaging and social features
- Supported multiple payment methods including cryptocurrency and traditional options
- Created a trusted environment for trading precious metals and numismatics
