> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sodax.com/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> SODAX is mainnet-only (no testnet chains or RPC endpoints exist) with a hub-and-spoke architecture; Sonic is the hub. SODAX is non-custodial protocol/software: it routes and settles; independent solvers on the marketplace fill — never say 'our solver', 'the SODAX solver', that SODAX trades, takes custody, or fills orders. For frontend/React integrations, prefer @sodax/dapp-kit hooks over calling @sodax/sdk directly. SDK operations — the methods that build, submit or await a transaction, and the API/quote calls — return Result<T, E> ({ ok: true, value } or { ok: false, error }): check result.ok, never wrap them in try/catch or branch on error.message; discriminate on the narrow error.code union instead. Synchronous config getters (getPartnerFee, getSupportedSwapTokens, getVault, ...) return their value directly, not a Result.

# SODAX for Arbitrum

> Reach the users and liquidity of every SODAX network from your Arbitrum product. No contracts to deploy, your entire integration is TypeScript.

<Note>
  **No new contracts.** SODAX's Arbitrum spoke contracts are already live; your entire integration is TypeScript. Your users sign ordinary EVM transactions on Arbitrum One, and SODAX coordinates cross-network execution, routing, and recovery behind the scenes.
</Note>

You keep shipping on Arbitrum. SODAX absorbs the cross-network execution layer, so your product can offer trading and lending against every asset in the SODAX System, <span data-sodax-config="count" data-metric="swap-tokens">166</span> across all supported networks, without leaving your stack. Integration happens in TypeScript, at the SDK or React layer. There is nothing to deploy, audit, or maintain on-chain.

Using SODAX is free. Trades carry a fixed 0.1% base fee taken by the protocol, and you set your own platform fee on top. That part is fully yours, both the rate and the revenue. See [Monetize SDK](/developers/how-to/monetize_sdk).

## What to know on Arbitrum

Arbitrum works like any other EVM network in SODAX: the same `EvmWalletProvider`, the same ERC-20 approvals, and the same intent flow, with no Arbitrum-specific handling in the SDK. Gas is paid in ETH, which is also Arbitrum's native token in SODAX and needs no approval. If you already integrate SODAX on another EVM network, the only change is the chain key, `ChainKeys.ARBITRUM_MAINNET`.

## What you can build

Two SODAX modules are relevant to Arbitrum builders:

<CardGroup>
  <Card title="Swaps" icon="rotate" href="/arbitrum/swaps">
    Intent-based cross-network swaps. Users swap between ETH or ERC-20 tokens and assets on any supported network with one signed transaction on Arbitrum. Solvers fill; SODAX routes and settles.
  </Card>

  <Card title="Money Market" icon="sack-dollar" href="/arbitrum/money-market">
    Cross-network lending and borrowing. Supply from Arbitrum, borrow to Arbitrum or any other supported network, and manage positions without running lending infrastructure.
  </Card>
</CardGroup>

## Choose your integration path

| Path | Best for | Start here |
| - | - | - |
| [`@sodax/sdk`](/developers/packages/foundation/sdk) | Full control from any TypeScript backend or frontend | [Quickstart](/arbitrum/quickstart) |
| [`@sodax/dapp-kit`](/developers/packages/experience/dapp-kit) + [`@sodax/wallet-sdk-react`](/developers/packages/connection/wallet-sdk-react) | React apps that want hooks and wallet connectivity out of the box | [Wallets](/arbitrum/wallets) |
| [Builders MCP](/builders-mcp) | Building with AI agents against the full SODAX stack | See below |

## Scope and build with AI

Point your AI coding assistant at the [SODAX Builders MCP](/builders-mcp) and it gains live access to the whole SODAX System: supported chains and tokens, real swap quotes, money market rates, intent history, and these docs. It works in Claude, Cursor, VS Code, Windsurf, and any other MCP-capable client.

```json theme={null}
{
  "mcpServers": {
    "sodax-builders": {
      "url": "https://builders.sodax.com/mcp"
    }
  }
}
```

Use it to scope before you commit: your assistant can read your own codebase, pull real quotes and token lists, and map exactly where SODAX fits in your product. Full tool list and per-client setup at [builders.sodax.com](https://builders.sodax.com/).

## In this section

* [Quickstart](/arbitrum/quickstart): install the SDK, connect an Arbitrum account, make your first cross-network swap.
* [Swaps on Arbitrum](/arbitrum/swaps): approvals, quoting, and fees.
* [Money Market on Arbitrum](/arbitrum/money-market): supply, borrow, repay, and withdraw with cross-network collateral.
* [Wallets](/arbitrum/wallets): EVM wallets on Arbitrum, and every other network's wallets through one interface.
* [Networks & Assets](/arbitrum/networks-and-assets): what is live on Arbitrum today and what your users can reach.
* [Arbitrum FAQ](/arbitrum/faq): the questions Arbitrum engineers actually ask.

## Arbitrum references

* [**Arbitrum documentation**](https://docs.arbitrum.io/): Arbitrum One, its fee model, and building on it.
* [**Chain info**](https://docs.arbitrum.io/for-devs/dev-tools-and-resources/chain-info): chain ID, public RPC endpoints, and explorers.
* [**Arbiscan**](https://arbiscan.io/): the Arbitrum One explorer, for checking transactions and allowances.

***

Building something? Start with the [Quickstart](/arbitrum/quickstart).


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