# What Is Biscotti Finance? \[DEX and token launchpad on Arc]

Biscotti Finance is a decentralized exchange (DEX) and token launchpad live
on **Arc Mainnet** (chain ID `5042`), with every product on Arc Testnet
(`5042002`). It combines two complementary AMM designs behind a single
smart router, layers BSCT yield incentives on top, and adds a seasonal
trading-competition system. All components are fully on-chain and open source.

Start with the [Arc Mainnet guide](/arc-mainnet) to connect your wallet,
or explore [tokens on Arc](/arc-tokens) to find assets and their addresses.
V3 concentrated liquidity and the launchpad are live on mainnet. Stable
pools, BSCT, and farms are currently available on testnet.

:::info[Native gas is USDC]
On ARC, the native gas token **is** the ERC-20 USDC at
`0x3600000000000000000000000000000000000000`. There is no wrapped-native token
to manage. You pay gas and trade with the same asset.
:::

## Products at a glance

| Product | What it does | Docs |
| --- | --- | --- |
| **Swap** | Trade any token pair with best-price execution across all pool types | [Swaps](/swap) |
| **Launchpad** | Launch a token in one transaction, liquidity locked forever | [Launchpad](/launchpad) |
| **Concentrated Liquidity** | Uniswap V3-style pools where LPs choose a price range and hold an NFT position | [Overview](/concentrated-liquidity) |
| **Stable Pools** | Curve-style StableSwap pools for like-priced assets (e.g. USDC/EURC) | [Overview](/stable-pools) |
| **Smart Router** | Splits a single trade across V3 and stable pools atomically | [Smart Router](/smart-router) |
| **Farms** | Stake V3 positions or LP tokens to earn BSCT emissions | [Farms](/farms) |
| **Coffee Pools** | Single-token staking: stake one token and earn another | [Coffee Pools](/coffee-pools) |
| **Trading Battles** | Seasonal trading competitions with Merkle-proof reward claims | [Trading Battles](/trading-battles) |
| **Analytics** | Volume, TVL, pair and token data from open subgraphs | [Analytics](/analytics) |

## Why two AMM designs?

No single AMM curve is optimal for every pair:

* **Volatile pairs** (e.g. BSCT/USDC) trade best on **concentrated liquidity**,
  where LPs compress capital into active price ranges and earn more fees per
  dollar deposited.
* **Like-priced pairs** (e.g. USDC/EURC, stablecoin pairs) trade best on a
  **StableSwap invariant**, which keeps slippage near zero while prices stay
  close to the peg.

The [Smart Router](/smart-router) hides this complexity: it quotes both pool
types (and multi-hop paths through them) and executes the best route or a
split across several routes in one transaction.

## The BSCT token

[BSCT](/token) is the protocol's reward token: a 1 billion hard-capped ERC-20
with role-gated minting. All farm emissions originate from it, and it is the
default reward asset for coffee pools and trading battles.

## Where to go next

:::steps
### Use the app

Follow the [Arc Mainnet guide](/arc-mainnet) to connect and trade, or use the
[testnet quick start](/quick-start) to experiment with test tokens.

### Understand the protocol

Read the [Protocol Architecture](/architecture) for a map of every contract
and how they interact.

### Build an integration

Jump to the [Developer section](/developers/addresses) for addresses, ABIs and
code samples.
:::