# Arch Tools Crypto OHLCV

> Arch Tools Crypto OHLCV is a paid API for AI agents from archtools.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Fetches historical OHLCV (open, high, low, close, volume) price data for a cryptocurrency over a specified number of days using CoinGecko coin IDs

## Facts

- Endpoint: POST https://archtools.dev/v1/tools/crypto-ohlcv
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/arch-tools-crypto-ohlcv-71428385
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oNI-4a0lNo6NBf4vsVdLN

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 arch-tools-crypto-ohlcv-71428385 -d '<json body>'
```

Example prompt: Can you pull the last 30 days of OHLCV price data for ethereum from Arch Tools so I can see the open, high, low, close, and volume history?

## When to prefer this

Choose this endpoint when you need structured historical OHLCV candlestick data for a specific cryptocurrency identified by its CoinGecko coin ID, especially when you want clean time-series price and volume data for analysis, charting, or backtesting. Prefer this over generic web scraping or news endpoints when you need numeric market data in a machine-readable format.

## Known failure modes

- Invalid or unrecognized CoinGecko coin ID returns an error
- Unsupported days value (not one of 1, 7, 14, 30, 90, 180, 365) may cause unexpected results or errors
- Payment failure (insufficient USDC balance) blocks the request
- Rate limiting or upstream CoinGecko API outage may cause timeouts
- Missing required 'symbol' field returns a validation error

## How this service works

Arch Tools — crypto-ohlcv

## Output

Returns a JSON object containing historical OHLCV (open, high, low, close, volume) data for the requested cryptocurrency over the specified number of days, sourced via CoinGecko coin IDs.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "days": {
   "type": "integer",
   "default": 7,
   "description": "Number of days of OHLCV data (1, 7, 14, 30, 90, 180, 365)"
  },
  "symbol": {
   "type": "string",
   "description": "CoinGecko coin ID (e.g. bitcoin, ethereum)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/arch-tools-crypto-ohlcv-71428385/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from archtools.dev](https://www.zero.xyz/host/archtools.dev/llms.txt)