Crypto Market Data

Crypto Market Data

Use this skill to retrieve clean JSON market data that can be copied into any project.

Quick Start

When this skill is installed from ClawHub or copied into an OpenClaw skills folder, run the bundled Node script from the skill directory:

node scripts/fetch-market-data.mjs BTC --realtime --history --interval 1d --range max

If the skill is installed in Codex locally, the same command can be run with the local path:

node ~/.codex/skills/crypto-market-data/scripts/fetch-market-data.mjs BTC --realtime --history --interval 1d --range max

Import it from another Node or OpenClaw project:

import { fetchCryptoMarketData } from "~/.codex/skills/crypto-market-data/scripts/fetch-market-data.mjs";

const data = await fetchCryptoMarketData({
  symbol: "BTC",
  realtime: true,
  history: true,
  interval: "1d",
  range: "max",
});

Source Selection

• Use --history-source binance for exchange K-lines. This is best for trading charts, but history starts when the pair listed on Binance.
• Use --history-source coingecko --coin-id bitcoin --range max for coin/project price history. This is better when the user asks for “全部历史价格”.
• Use Binance realtime for spot ticker data when the asset has a liquid USDT, USDC, or FDUSD spot pair.
• Do not invent market cap, supply, or history. If a source is missing, return an error or mark the field missing.

Common Commands

Realtime only:

node ~/.codex/skills/crypto-market-data/scripts/fetch-market-data.mjs SOL --realtime

Binance full K-line history:

node ~/.codex/skills/crypto-market-data/scripts/fetch-market-data.mjs ETH --history --interval 1d --range max --history-source binance

CoinGecko full price history:

node ~/.codex/skills/crypto-market-data/scripts/fetch-market-data.mjs BTC --history --history-source coingecko --coin-id bitcoin --range max

Write JSON to a file:

node ~/.codex/skills/crypto-market-data/scripts/fetch-market-data.mjs TRUMP --realtime --history --range 30d --out trump-market.json

OpenClaw Usage

When an OpenClaw agent needs market data, use this skill and execute the script with the requested symbol, source, interval, and range. Prefer JSON output and keep source errors non-fatal.

Example prompts after installation:

• “Use crypto-market-data to fetch BTC realtime spot data and full historical prices.”
• “Use crypto-market-data to fetch SOL 1d Binance K-lines for the last year.”
• “Use crypto-market-data to fetch CoinGecko full history for bitcoin.”

Output Shape

The script returns:

• query: requested symbol, pair, interval, range and source choice.
• realtime: latest spot ticker from Binance when requested.
• history: candle/price series with source metadata.
• errors: non-fatal source errors.

Read references/data-sources.md when deciding between Binance, CoinGecko, and CMC semantics.