# Base

> Base (8453). Ids, anchors, contracts, venues and the /v1/chains/base/* data family.

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

| | |
| --- | --- |
| Chain id | `8453` (key `base` in `/v1/chains/{chain}/*`) |
| Gas | ETH (zero address in the API; WETH `0x4200000000000000000000000000000000000006`) |
| Blocks | ~2 s |
| Stable anchors | USDC `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` and USDT `0xfde4C96c8593536E31F229EA8f37b2ADa2699bb2` (6 decimals); the bridged USDbC counts as a dollar too |
| Explorer | [basescan.org](https://basescan.org) |
| Chord index since | 2026-09-23 15:00 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, Aerodrome (Slipstream and V2), Hydrex, QuickSwap V4 and Metric. The data index covers every venue on the chain; `GET /v1/chains/base/venues` is the live list with share. Common ids: `aerodrome_slipstream_3` · `uniswap_v3` · `aerodrome_slipstream` · `pancake_v3` · `uniswap_v4` · `aerodrome_v2` · `aerodrome_slipstream_2` · `uniswap_v2` · `hydrex_integral` · `quickswap_v4` · `sushi_v3`.

## Endpoints

| Need | Call |
| --- | --- |
| Freshness and coverage | `GET /v1/chains/base/status` |
| Chain totals, venue share, hourly and daily | `GET /v1/chains/base/overview` |
| Every token traded in 24h | `GET /v1/chains/base/tokens` |
| One token's hourly tape and venue split, its swaps | `GET /v1/chains/base/token/{address}`, `…/token/{address}/trades` |
| Search | `GET /v1/tokens/search?q=&chain=8453` |
| Candles | `GET /v1/candles?chain=8453&token=` |
| A wallet's swaps and PnL | `GET /v1/chains/base/wallet/{address}`, `…/wallet/{address}/trades` |
| Quote and swap | `GET /v1/quote?chain=8453…`, `POST /v1/swap { chain: 8453 }`, native ETH goes in `value` |

The database keeps the raw tape for about 3 days on this chain; a wallet's older days come from Chord's data lake, and the answer's `window` and `history` say which. There are no top-wallet, holder or liquidity boards for Base yet.