# Arbitrum

> Arbitrum One (42161). Ids, anchors, contracts, venues and the /v1/chains/arbitrum/* data family.

Source: https://getchord.xyz/docs/networks/arbitrum/

| | |
| --- | --- |
| Chain id | `42161` (key `arbitrum` in `/v1/chains/{chain}/*`) |
| Gas | ETH (zero address in the API; WETH `0x82aF49447D8a07e3bd95BD0d56f35241523fBab1`) |
| Blocks | ~250 ms |
| Stable anchors | USDC `0xaf88d065e77c8cC2239327C5EDb3A432268e5831` and USDT0 `0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9` (6 decimals); the bridged USDC.e counts as a dollar too |
| Explorer | [arbiscan.io](https://arbiscan.io) |
| Chord index since | 2026-10-06 20:00 UTC |

## Chord contracts

The same proxies as every EVM chain Chord routes on: router `0x1b1fee89a381e595fe6536b99ba91f3e16e9601a`, fee collector `0x6c66229675fd9ceda9a9b2ea2bd983b3d8255834`, adapter registry `0x6cf25d2af1a58d7094b0ac253ae616a8e1f2ea3f`. Adapters come with every quote. Protocol fee: 5 bps by default, 0 on the dollar stables and WETH.

## Venues

Routing covers Uniswap V2, V3 and V4, PancakeSwap V3, SushiSwap V2 and V3, Camelot V3, Metric and WOOFi. The data index covers every venue on the chain; `GET /v1/chains/arbitrum/venues` is the live list with share. Common ids: `uniswap_v3` · `uniswap_v4` · `pancake_v3` · `camelot_v3` · `sushi_v3` · `sushi_v2` · `camelot_v2` · `uniswap_v2` · `ramses_v2` · `pancake_v2`.

## Endpoints

| Need | Call |
| --- | --- |
| Freshness and coverage | `GET /v1/chains/arbitrum/status` |
| Chain totals, venue share, hourly and daily | `GET /v1/chains/arbitrum/overview` |
| Every token traded in 24h | `GET /v1/chains/arbitrum/tokens` |
| One token's hourly tape and venue split, its swaps | `GET /v1/chains/arbitrum/token/{address}`, `…/token/{address}/trades` |
| Search | `GET /v1/tokens/search?q=&chain=42161` |
| Candles | `GET /v1/candles?chain=42161&token=` |
| A wallet's swaps and PnL | `GET /v1/chains/arbitrum/wallet/{address}`, `…/wallet/{address}/trades` |
| Quote and swap | `GET /v1/quote?chain=42161…`, `POST /v1/swap { chain: 42161 }`, native ETH goes in `value` |

There are no top-wallet, holder or liquidity boards for Arbitrum yet.