Ethereum
| Chain id | 1 (key ethereum in /v1/chains/{chain}/*) |
| Gas | ETH (zero address in the API; WETH 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2) |
| Blocks | ~12 s |
| Stable anchors | USDC 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 and USDT 0xdAC17F958D2ee523a2206206994597C13D831ec7 (6 decimals); DAI 0x6B175474E89094C44Da98b954EedeAC495271d0F (18 decimals) |
| Explorer | etherscan.io |
| Chord index since | 2026-10-08 17:00 UTC |
Chord contracts
Section titled “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 USDC, USDT, DAI, WETH and WBTC.
USDT approvals
Section titled “USDT approvals”USDT on Ethereum refuses a new approve while the spender still holds a non-zero allowance. Approve exactly the input amount (the swap uses all of it, so the allowance returns to 0). When an older allowance is left over, send approve(spender, 0) first: /v1/meta/quote and /v1/meta/swap say so with approval.resetFirst: true.
Venues
Section titled “Venues”Routing covers Uniswap V2, V3 and V4, PancakeSwap V3, SushiSwap V2 and V3. Curve, Fluid, Balancer and Ekubo are not routed yet; the data index reads the venues that emit Uniswap-shaped swap events (about 93 % of the chain’s swaps). GET /v1/chains/ethereum/venues is the live list with share. Common ids: uniswap_v3 · uniswap_v4 · uniswap_v2 · pancake_v3 · sushi_v3 · sushi_v2 · ring_v2 · supernova_cl · shibaswap · fraxswap.
Endpoints
Section titled “Endpoints”| Need | Call |
|---|---|
| Freshness and coverage | GET /v1/chains/ethereum/status |
| Chain totals, venue share, hourly and daily | GET /v1/chains/ethereum/overview |
| Every token traded in 24h | GET /v1/chains/ethereum/tokens |
| One token’s hourly tape and venue split, its swaps | GET /v1/chains/ethereum/token/{address}, …/token/{address}/trades |
| Search | GET /v1/tokens/search?q=&chain=1 |
| Candles | GET /v1/candles?chain=1&token= |
| A wallet’s swaps and PnL | GET /v1/chains/ethereum/wallet/{address}, …/wallet/{address}/trades |
| Quote and swap | GET /v1/quote?chain=1…, POST /v1/swap { chain: 1 }, native ETH goes in value |
curl -s "https://api.getchord.xyz/v1/quote?chain=1&inputMint=0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2&outputMint=0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48&amount=1000000000000000000"1 WETH to USDC on 2026-10-15: outputAmount 2452700960 (2,452.70 USDC), split 96 % Uniswap V3 and 4 % PancakeSwap V3.
There are no top-wallet, holder or liquidity boards for Ethereum yet.