Chord Charts

Chord indexes every DEX swap on its chains and builds candles from those trades. `scripts/chart.py` turns them into a standalone SVG candlestick chart and prints a JSON summary. - `--chain`: `base`, `monad`, `bnb`, `avalanche`, `arbitrum`, `robinhood`, `arc`, `solana`. - `--token`: a symbol or name, or an address (`0x…` on EVM chains, the base58 mint on Solana, case-sensitive). A symbol is resolved through Chord's search; the script prints the address it picked. Similar tickers are common: if the user named a token loosely, show them the resolved address. - `--tf`: `1m 5m 15m 1h 4h 1d 1w` (Solana up to `1d`). `--limit`: number of candles, up to 1000. - Output: the SVG file (path in the summary, default `chart-<symbol>-<chain>-<tf>.svg`) and a JSON summary on stdout: `symbol`, `token`, `open`, `close`, `changePct`, `high`, `low`, `volumeUsd`, `trades`, `lastCandleOpen`. Show the user the chart file and a one-line read of the summary, for example: "AERO on Base, last 48 hours: $0.884, -2.75%, range $0.831 to $0.920, $10.5M traded." - Prices are in USD from on-chain trades. Wrapped majors stand in for the coin: WETH for ETH, cbBTC on Base, BTC.b on Avalanche, BTCB on BNB Chain, WMON on Monad. Say which token you charted. - Robinhood Chain stock tokens trade around the clock on-chain, so their candles can move while the US market is closed. - Solana candles are one pool's prices (the main pool), not a blend across pools. - If the last candle is still open, `lastCandleOpen` is true and the subtitle says so. - About 60 requests a minute without a key; a chart costs one or two requests. - For raw data without a chart: `GET https://api.getchord.xyz/v1/candles?chain=<chainId>&token=<address>&tf=1h&limit=48` (EVM) or `GET https://api.getchord.xyz/v1/chains/solana/token/<mint>/candles?tf=1h&limit=48`.