# Blockchain IQ — Daily Price History for One Coin

> Blockchain IQ — Daily Price History for One Coin is a paid API for AI agents from www.blockchainiq.co, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-12).

Returns daily OHLC/price history for a specified cryptocurrency over up to 730 days, identified by CoinGecko coin ID.

## Facts

- Endpoint: GET https://www.blockchainiq.co/api/x402/v1/history/:coinId?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockchain-iq-daily-price-history-for-one-coin-7c0ad338
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NI_dYwac1KR9Z8DeGDsjE

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 blockchain-iq-daily-price-history-for-one-coin-7c0ad338
```

Example prompt: Can you pull the daily price history for Bitcoin over the last 90 days from Blockchain IQ?

## When to prefer this

Choose this endpoint when you need structured daily price history for a single cryptocurrency identified by its CoinGecko coin ID, for up to two years of data. It is ideal for backtesting, charting, trend analysis, or portfolio review workflows where per-coin historical granularity is required. Prefer it over the global market snapshot sibling when you need coin-specific historical data rather than aggregate market stats.

## Known failure modes

- Invalid or unrecognized coinId (not a valid CoinGecko coin ID) — returns error or empty data
- days parameter out of range (less than 1 or greater than 730) — rejected by schema validation
- Payment failure or insufficient USDC balance — 402 Payment Required response
- Coin data not available for the full requested period — partial or no data returned
- Network timeout or upstream CoinGecko data source unavailable

## How this service works

Historical crypto prices: daily USD price series for one coin by CoinGecko id (bitcoin, ethereum, solana, ripple for XRP and more), from 1 to 730 days back via ?days=. Use for charts, returns, volatility, drawdown, moving averages and backtests. Returns date and price per day as JSON. No API key. From $0.01 per call, scaling with the range requested and capped at $0.05. Blockchain IQ.

## Output

Returns a date-indexed series of daily price data (e.g. open, high, low, close, and/or market cap) for the requested coin over the specified number of days, up to a maximum of 730 days.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "coinId"
     ],
     "properties": {
      "coinId": {
       "type": "string",
       "description": "CoinGecko coin id, e.g. bitcoin"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "days": {
       "type": "integer",
       "maximum": 730,
       "minimum": 1,
       "description": "Days of history (default 365)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockchain-iq-daily-price-history-for-one-coin-7c0ad338/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.blockchainiq.co](https://www.zero.xyz/host/www.blockchainiq.co/llms.txt)