Carbon Protocol is a Cosmos SDK-based app-chain powering Demex — a cross-chain derivatives and spot trading DEX offering perpetual futures, CLOB spot trading, and AMM pools for assets from Ethereum, BNB Chain, Cosmos, and other networks, with SWTH as the native token and a decentralized governance structure for on-chain market creation.
Overview
Carbon Protocol (formerly Switcheo TradeHub) is one of the older projects in the Cosmos DeFi space, having originally launched as the TradeHub blockchain infrastructure for the Switcheo exchange on TRON and Ethereum. It evolved into Carbon — a dedicated app-chain for multi-chain derivatives — and powers the Demex trading interface. Carbon’s value proposition is a venue that combines CLOB order matching (on-chain) with AMM liquidity, supports cross-chain assets natively through bridging, and has been operational through multiple market cycles without a major exploit. SWTH is among the longer-tenured app-chain governance tokens in the Cosmos ecosystem.
Demex: The Trading Interface
Demex is Carbon Protocol’s flagship trading interface:
Perpetual Futures
- CLOB perpetuals (order book, not pool-based)
- Markets: BTC-PERP, ETH-PERP, and various altcoin and crypto-index perpetuals
- Funding rate mechanism (longs pay shorts or vice versa to keep perp near index)
- Cross-margin and isolated margin modes
- Leverage up to 150x on major pairs (one of highest among on-chain perps)
Spot CLOB
- On-chain limit order book for spot trading
- IBC-bridged assets (ATOM, OSMO, etc.) and externally bridged assets (wBTC, wETH)
- Maker rebates / taker fee model
- Order types: limit, market, stop-limit, scale orders
AMM Pools
- Passive liquidity provision (xyk constant product AMM)
- AMM liquidity integrates with CLOB to provide depth when orderbook is shallow
- LP earns fees from both AMM swaps and order routing through AMM ranges
Cross-Chain Asset Support
Carbon supports assets from multiple chains via bridges:
- Cosmos IBC — ATOM, OSMO, and other IBC assets natively bridged
- Ethereum / BNB Chain — ERC-20 and BEP-20 assets bridged via Carbon’s bridge infrastructure
- Polynetwork / custom bridges — additional chain support
- Cross-chain deposits into Demex trading accounts without leaving native chain
Carbon Chain Architecture
Carbon is its own Cosmos SDK app-chain:
- Custom modules for order matching (not general CosmWasm)
- High-frequency order matching at the consensus layer (similar to Kujira’s FIN model)
- Validator set secured by SWTH stake
- Low gas fees for order operations (critical for active CLOB trading)
- Tendermint BFT finality (~2s blocks)
SWTH Token
SWTH is Carbon’s native token:
- Staking — stake SWTH to become a validator or delegator; earn block rewards
- Governance — SWTH holders vote on new market listings, fee rate changes, protocol upgrades
- Fee payment — trading fees on Demex paid partially in SWTH (traders can earn fee discounts by staking SWTH)
- Liquidity incentives — SWTH emissions to AMM LPs and market makers on Demex
History and Rebranding
- Switcheo Exchange (2018) — early DEX on NEO and Ethereum
- Switcheo TradeHub (2020) — dedicated trading chain launch on Cosmos SDK
- Carbon Protocol (2022) — full rebrand, focus on derivatives and cross-chain
- Demex V2 (2023) — upgraded trading interface with improved UX
Sources
- Carbon Protocol — Official Documentation — Demex trading platform, SWTH tokenomics, and cross-chain integration.
- DeFiLlama — Carbon — TVL and trading volume.
- CoinGecko — SWTH Token — token supply and market data.