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The Onchain Exchange.

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Don't trust. Verify.

The blockchain is the exchange.

Centralized exchanges take custody. Most “onchain” venues still match orders on a private server and publish the result. Aftermath does neither.

  • Execution runs onchain

    Matching, fills, funding, and liquidations execute in Move smart contracts. There is no off-chain sequencer sitting between your order and the book — the chain is the venue.

  • You hold the assets

    Collateral sits in an Account object you own. Aftermath never takes custody, cannot move your funds, and cannot stop you from withdrawing them.

  • Everything is verifiable

    Every fill, every liquidation, and every protocol parameter is a public onchain fact. Margin-requirement changes are written onchain first and time-delayed before they take effect.

Products

One exchange, six surfaces.

Perpetual futures, spot aggregation, liquidity, and staking — each one settled by contracts on Sui, each one open to build on.

All products

New to Sui? Start with the glossary.

Built on Sui

The same four ideas, everywhere.

Aftermath is not a port of an exchange onto a chain. Each product is built from the same Sui primitives, which is what makes single-signature routing, self-custodied positions, and permissionless listing possible at all.

  • Programmable Transaction Blocks

    One signature settles a route that touches a dozen venues. Programmable Transaction Blocks let a single transaction compose calls across protocols, and a hot-potato guard enforces slippage across the whole route or reverts it.

  • User-owned objects

    Perp accounts, farm positions, and DCA orders are Sui objects owned by the user. That is why farms cannot auto-compound — the vault genuinely cannot touch what you staked.

  • Permissionless by default

    Anyone can list a pool, launch a farm, or open a market-making vault without asking. Any asset with a reliable oracle can back a perp market, so new markets ship without a protocol upgrade.

  • Open surfaces

    The AMM is open source, the SDK is Apache-2.0 on npm, and the REST API is documented by an OpenAPI spec anyone can read. The perps API also speaks CCXT.

Getting started

Four steps, no prerequisites.

Aftermath runs on Sui, but you do not need to already hold SUI, own a wallet, or understand Move to place a trade.

  1. 01

    Create an account

    Sign in with Google or Twitch through zkLogin and a Sui account is derived for you with no seed phrase, or connect an existing wallet — Slush, Phantom, Nightly, Suiet, OKX and others all work.

    Docs
  2. 02

    Fund it

    Bridge from Ethereum, Base, Arbitrum, Solana, Optimism, Polygon, BNB Chain, or Avalanche through the built-in Mayan integration, or buy directly with an on-ramp.

    Docs
  3. 03

    Skip the gas token

    Dynamic Gas lets you pay network fees in a coin you already hold. Aftermath sponsors the SUI and charges you in your chosen asset inside the same transaction.

    Docs
  4. 04

    Trade

    Open a perp position, route a swap across every venue on Sui, provide liquidity, or stake for afSUI. Collateral stays in an object you own the whole time.

    Docs

For developers

Integrate in an afternoon.

Every venue, price, and position is reachable from a typed SDK, a documented REST API, or stock CCXT. No key, no waitlist, no partner agreement.

Package
aftermath-ts-sdk
License
Apache-2.0
Runtime deps
1
Public reads
No API key
Perps API
CCXT-compatible
Developer hubView on npmAPI reference
install
npm install aftermath-ts-sdk @mysten/sui@^2
quickstart.ts
import { Aftermath } from "aftermath-ts-sdk";

const sdk = await Aftermath.create({ network: "MAINNET" });

// Best route across every venue on Sui
const route = await sdk.Router().getCompleteTradeRouteGivenAmountIn({
  coinInType: "0x2::sui::SUI",
  coinOutType: "0x<...>::usdc::USDC",
  coinInAmount: BigInt(10_000_000_000),
});

// Live afSUI staking APY
const apy = await sdk.Staking().getApy();

Ecosystem

Read it, fork it, ask about it.

The protocol is only half of it. The documentation, the repositories, the audits, and the people are all open too.

Open the exchange.

Connect a Sui wallet or sign in with Google. No signup, no custody, no approval queue — the exchange is a contract you call.

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