# Carbon Cashmere OHLCV Candlestick Data API

> Carbon Cashmere OHLCV Candlestick Data API is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.02/call, status down (last checked 2026-09-09).

Returns historical OHLCV (open, high, low, close, volume) candlestick data for up to 34 cryptocurrencies across four time intervals with up to 90 days of history.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/ohlcv/:coin
- Price: $0.02/call
- Payment: x402
- Status: down
- Last checked: 2026-09-09
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-carbon-cashmere-de-0de0e49e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UA0a-Wh9CFcZnlDDmLHvs

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability api-carbon-cashmere-de-0de0e49e
```

Example prompt: Pull the last 30 days of 1-hour OHLCV candlestick data for BTC from Carbon Cashmere so I can run a backtest on it.

## When to prefer this

Use this endpoint when you need structured OHLCV candlestick data for backtesting, charting, or technical analysis on one of the 34 supported major cryptocurrencies. Prefer this over real-time price endpoints when historical multi-candle time series data is needed rather than a single current price. Ideal for algorithmic trading signal generation, strategy backtesting, and charting applications requiring up to 90 days of granular price history.

## Known failure modes

- Unsupported coin ticker returns error — only 34 specific coins are supported (AAVE, ADA, APT, ARB, ATOM, AVAX, BCH, BNB, BTC, DOGE, DOT, ETC, ETH, HBAR, HYPE, ICP, KAS, LINK, LTC, MATIC, NEAR, ONDO, OP, SKY, SOL, SUI, TAO, TON, TRX, UNI, XLM, XMR, XRP, ZEC)
- Days parameter exceeding 90 returns validation error
- Invalid interval value (not 15m/1h/4h/1d) causes bad request
- Payment failure (x402) if USDC balance is insufficient for $0.005 per call
- Missing required coin path parameter returns 404 or bad request

## How this service works

Get historical OHLCV candlestick data for 116 cryptocurrencies — open, high, low, close prices with sample count per candle. Intervals: 15min, 1hour, 4hour, 1day. Up to 90 days of history for BTC, ETH, SOL, and 113 more coins. AI agent API for technical analysis, charting, backtesting data feeds, and price history retrieval.

## Output

A JSON object containing the coin ticker, the requested interval, total candle count, and an array of OHLCV candles each with open, high, low, close prices and sample count per candle.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-carbon-cashmere-de-0de0e49e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.carbon-cashmere.de](https://www.zero.xyz/host/api.carbon-cashmere.de/llms.txt)