# How Exchange works

***

## One wallet in, every chain out.

### TL;DR Flow (Meet Bob)

1. **Bob** logs in with his MetaMask (Ethereum).
2. Deposits **SOL** from a Solana wallet → instantly credited to his ETH-login account.
3. Buys **MATIC** in a SOL/MATIC pair without bridging *anything.*
4. Withdraws MATIC to a Polygon wallet—again, one click, instant.
5. Never once gives up custody, never pays trading gas, never touches a bridge.

***

## Your trade journey in 5 zero-friction moves:

{% stepper %}
{% step %}

### Connect & claim your space

* Click **Connect Wallet**.
* Sign the one-time **“login” message**.
  * No password, no e-mail, no KYC rabbit hole.
  * Whatever wallet you use becomes your *Login Wallet*—that’s the key to your whole trading universe here.

***

{% endstep %}

{% step %}

### Drop native tokens (zero wrapping, zero bridging)

* Choose any of the [**14+ supported chains**](/adlunam-inc.-whitepaper/adlunam-exchange.md#chains-supported).
* Hit **Deposit** → confirm the native on-chain transaction.
* When the blockchain says “final,” the smart contracts credit the balance straight to your Login Wallet’s account.

#### **Behind the curtain**

* Smart contracts map your wallet to an internal order-book balance.
* *No* wrapped assets. *No* third-party bridge risk.
* You pay the normal gas of the chain you’re depositing from—nothing else.

<figure><img src="/files/D0Q58GWcKe9CbOXSdfbJ" alt=""><figcaption></figcaption></figure>

***

{% endstep %}

{% step %}

### Place orders—gas-free

* Pick a trading pair (yes, even cross-chain ones like **SOL/ETH**).
* Click **Buy** or **Sell** → sign the order message.
* That’s it. Because orders live off-chain in an in-memory matching engine, **you burn exactly 0 gas** to create, cancel, or update them.

***

{% endstep %}

{% step %}

### Instant matching, on-chain settlement

* Our engine matches orders in real time.
* Once matched, the trade is pushed on-chain, settled by the contracts, and balances update automatically.
* You watch numbers move; you never watch a spinning bridge-loader.
  {% endstep %}

{% step %}

### Cash out—any chain, any time

* Hit **Withdraw**, paste (or select) the destination address on the token’s native chain, sign the message.
* Settlement is **instant**; you only pay that chain’s normal network fee.
* Example: Use an Ethereum wallet to withdraw SOL directly to a Solana wallet. One click, one gas fee—done.

<figure><img src="/files/jA7Ggd3GVQRt2Mlhy68H" alt=""><figcaption></figcaption></figure>
{% endstep %}
{% endstepper %}

***


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