For the complete documentation index, see llms.txt. This page is also available as Markdown.

Welcome to Axis

Axis builds the infrastructure behind digital asset markets: liquidity, settlement, and credit for the institutions moving capital through them.

Axis provisions liquidity, makes markets, and manages risk across venues, currencies, and settlement systems.

Two products are live today, and they are deliberately different things:

  • USDx. The Axis Dollar, is a dollar with real utility: a dollar-denominated, over-collateralized token that finances positions and settles trades between Axis counterparties. You mint it against supported assets.

  • sUSDx. The Axis Rewards Vault, is a separate product, and it is the yield-bearing one: a tokenized vault position, permissionlessly created when you stake USDx. It is where deposits that would otherwise sit idle earn a return. The rate is variable.

Start here

If you want to...
Read...

Understand what Axis is, in plain language

Learn where Axis came from

See how assets, USDx, strategies, and sUSDx connect

Understand the USDx price-stability mechanism

Review backing, custody, and transparency

Understand where sUSDx yield comes from

Evaluate what can go wrong

Review the contracts

The system at a glance

The mint-and-redeem system and the trading engine are related but distinct. Smart contracts enforce the USDx mint, redemption, staking, reward-distribution, and access-control rules. The trading and custody that stand behind the backing are directed offchain and introduce dependencies that smart contracts cannot eliminate.

Core concepts

USDx

USDx, the Axis Dollar, is Axis's synthetic dollar: a dollar-denominated, over-collateralized token. It is minted against supported assets through signed orders submitted by an authorized operator, and a corresponding redemption flow burns USDx and returns the assets specified in the order. Read What is USDx?.

sUSDx

sUSDx is the Axis Rewards Vault, a yield-bearing, tokenized vault position that is permissionlessly created when you stake USDx. When rewards are added and vest, each sUSDx position can become redeemable for more USDx. Read What is sUSDx?.

The trading engine

Behind the tokens is a market-neutral trading engine spanning four complementary categories: cross-venue arbitrage, cross-currency arbitrage, funding rate arbitrage, and OTC/RFQ. The engine provisions liquidity where markets need it most, and the active mix can change as opportunities and risk conditions change. None of these return sources is risk-free: execution, liquidity, basis, FX, funding, venue, custody, counterparty, and operational failures can reduce or reverse an expected return. Read How Axis Earns Yield.

The trading and risk infrastructure behind this engine predates Axis. It was built and run for years before Axis existed, and has been battle-tested through multiple market cycles and edge cases. See Origin.

Important distinction

The sUSDx exchange rate measures USDx per sUSDx. It is not the market price of USDx in US dollars, and it is not a guarantee that either token can be sold or redeemed at a particular price or time.

Where Axis fits

Axis is not about capturing every available source of dollar returns. It is about positioning capital and liquidity where they need to go to meet demand, creating liquid markets across asset classes and asset standards, and bridging digital and traditional assets.

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