Overview
COSS Exchange (Crypto One Stop Solution) was launched in Singapore around 2017. It branded itself as a one-stop hub for crypto trading, wallets, payments, and IEOs. Its COS token promised 50% of exchange revenue redistributed back to holders - a bold, community-driven model at the time.
What it was
COSS positioned itself as an ecosystem: a trading venue, integrated wallet, payment processor, and token launchpad. COS holders expected revenue sharing and utility discounts, aiming to tie platform growth directly to its token economy.
How it ended
By 2023, activity had collapsed. CoinMarketCap listed it as “Untracked,” CoinGecko showed negligible volume, and Cryptowisser marked it “dead” after the site went offline. Formerly handling 30-40 coins and pairs, it now shows no active markets. For most users, it turned into a ghost platform.
Trading and features (back in the day)
The exchange listed popular assets like BTC, ETH, Dash, Lisk, and its own COS token. Fiat support existed through certain bank transfers, though crypto trading was the core. Fees included 0% maker and ~0.25% taker rates, with BTC withdrawal around 0.0004 BTC. The COS token offered rebates and a share of platform revenue—until volumes vanished.
User reputation
Community memory is harsh. Trustpilot is filled with 1-star reviews about locked funds and poor support. Reddit discussions describe users trapped in “migration limbo,” comparing it to a rite of passage for traders burned by unreliable exchanges. Reports of frozen accounts and inaccessible balances became widespread.
Strengths (when it worked)
- Ambitious model: exchange, wallet, payments, IEO launchpad.
- Novel revenue-sharing mechanism via COS token.
- Reasonable trading fees and some fiat access.
Weaknesses
- Collapsed liquidity - platform became untracked and inactive.
- Basic interface with weak charting and no advanced tools.
- No margin or futures markets.
- Customer service failure and fund access issues.
- Reputation destroyed by migration freeze and exit-scam fears.
Snapshot table
| Feature | Highlights (Past) | Major Red Flags |
|---|---|---|
| Utility & Tools | Exchange, wallet, payment, launchpad | Ecosystem collapsed, no longer active |
| Trading Conditions | 0% maker, tiered taker fees | No liquidity, dead platform |
| User Sentiment | Ambitious at launch | Trust collapsed with frozen funds |
| Status | Singapore-based, multipurpose exchange | Untracked, defunct, marked as dead |
Final take
COSS Exchange was once pitched as the - crypto one stop solution” with its COS token revenue-share model. It promised everything - exchange, wallet, payments, IEO - but could not sustain liquidity or trust. By mid-2023, the site was gone, trading had dried up, and user confidence had evaporated. Today, it serves more as a cautionary tale than a real exchange.