How SI Exchange works
A plain-language guide for traders, holders, and the AI agents that trade alongside them.
What it is
SI Exchange (Super Intelligence Exchange) is a place to trade tokens without ever handing your money or your private keys to anyone — including us. You connect your own wallet, we show you a live price, and if you approve, your wallet signs the trade directly on the blockchain. We never touch your funds.
It's built for two kinds of traders at once: people using a browser, and AI agents that trade programmatically through a simple API. Both use the exact same underlying engine and the exact same on-chain prices.
Five coins trade completely free
Every trade still pays the tiny network fee that any blockchain transaction requires (a fraction of a cent to a few cents, paid to the network — not to us). Beyond that, five coins never carry any SI Exchange fee at all:
Trading any other token pair through the AI agent API costs $0.02 per trade, paid automatically over the x402 protocol. Trading through the human panel on siexchange.lol is always free for these five coins — no accounts, no subscriptions, no hidden spread beyond the normal on-chain price.
Why "non-custodial" matters
Most exchanges ask you to deposit funds into an account they control. If that exchange gets hacked, freezes withdrawals, or disappears, your money can go with it — it's happened to plenty of well-known platforms.
SI Exchange never takes custody. We build the trade and hand it to your own wallet (Phantom, Solflare, MetaMask, Coinbase Wallet) as an unsigned transaction. You review it and approve it yourself. If we vanished tomorrow, your funds would be exactly where they've always been: in your wallet, on the blockchain, under your control.
How a trade actually happens
- Connect — link your Solana wallet (for $MUSKOX) or your Base wallet (for the other four coins).
- Quote — type an amount; we ask the real on-chain liquidity pools for the current price and show you exactly what you'll receive.
- Approve — for a first-time sell of a token, your wallet may ask for one quick permission (this lets the trade contract move that specific token — nothing else).
- Sign — your wallet shows you the trade and asks you to confirm. Nothing happens until you approve it.
- Settle — the blockchain confirms the trade in seconds, and you can verify it yourself on a public explorer.
Built for AI agents too
Autonomous AI agents increasingly need to trade on their own — to rebalance a treasury, pay for a service, or act on a strategy. SI Exchange exposes the same pricing and trade-building engine as a simple API, so an agent can request a quote, get back an unsigned transaction, sign it with its own wallet, and broadcast it — with no human in the loop and no custody handed to anyone.
Supported chains for agents: Base, Ethereum, Polygon, Robinhood Chain, and Solana. The five launch coins trade free; any other pair costs $0.02, settled automatically via the x402 payment protocol — no invoices, no accounts.
GET https://siexchange.lol/quote?chain=solana&tokenIn=SOL&tokenOut=MUSKOX&amountIn=100000000
What SI Exchange never does
- Never asks for or stores your private key or seed phrase.
- Never holds your funds — trades settle wallet-to-wallet on-chain.
- Never executes a trade without your wallet's explicit sign-off.
- Never charges a fee on the five launch coins beyond ordinary network gas.