# SiteCheck Crypto & Finance – CoinPaprika Market Data

> SiteCheck Crypto & Finance – CoinPaprika Market Data is a paid API for AI agents from api.chainmarket-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-24).

Returns real-time cryptocurrency market data (price, market cap, volume, ATH, % changes) for one or more coins or a ranked top list, sourced from CoinPaprika

## Facts

- Endpoint: GET https://api.chainmarket-api.workers.dev/api/finance/nomics-crypto?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitecheck-crypto-finance-coinpaprika-market-data-16c898fd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jwN51qyU1vmermrmmmaOD

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 sitecheck-crypto-finance-coinpaprika-market-data-16c898fd
```

Example prompt: What are the current prices, market caps, and 7-day price changes for Bitcoin and Ethereum in USD? Pull from CoinPaprika using their IDs btc-bitcoin and eth-ethereum.

## When to prefer this

Choose this endpoint when you need real-time crypto price and market data (price, volume, market cap, ATH, multi-timeframe % changes) for one or more specific coins by their CoinPaprika IDs, or want a ranked top-N list — especially in a pay-per-call, no-signup context using x402 micropayments on multiple chains. Prefer it over manual CoinPaprika API access when you want a pre-integrated, agent-friendly interface with no API key management.

## Known failure modes

- Invalid or unrecognized CoinPaprika coin ID returns an error or omits that coin from results
- limit parameter out of range (not 1–100) may return a validation error
- Unsupported quote currency returns an error
- Payment failure results in no charge and no data returned
- Rate or availability issues with the upstream CoinPaprika source may cause stale or missing data

## How this service works

Crypto market tickers (replacement for the closed Nomics ticker API): rank, name, symbol, price, 24h volume, market cap, circulating/total/max supply, % change over 15m, 1h, 24h, 7d, 30d, 1y, all-time high price/date and distance from it, in USD or another quote (EUR, GBP, JPY, TRY, BTC, ETH). Top coins by rank, or specific CoinPaprika ids (btc-bitcoin, eth-ethereum). Data from CoinPaprika's public API.

## Output

Returns a JSON object containing a results array of coin objects, each with: current price, market cap, 24h trading volume, all-time high (price, date, % below ATH), price change percentages (15m, 1h, 24h, 7d, 30d, 1y), symbol, rank, total supply, max supply, and last-updated timestamp. Also includes the quote currency used, result count, data source URL, and the checkedAt timestamp.

## 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"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "ids": {
       "type": "string",
       "description": "Up to 10 CoinPaprika ids, comma separated (e.g. btc-bitcoin,sol-solana); omit for the top list"
      },
      "limit": {
       "type": "string",
       "description": "Top list size, 1 to 100 (default 20)"
      },
      "quote": {
       "type": "string",
       "description": "USD, EUR, GBP, JPY, TRY, BTC, ETH (default USD)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 2,
  "quote": "USD",
  "source": "https://coinpaprika.com/",
  "results": [
   {
    "id": "btc-bitcoin",
    "ath": {
     "date": "2025-10-06T19:00:40Z",
     "price": 126173.17778468,
     "percentFromAth": -35.39
    },
    "name": "Bitcoin",
    "rank": 1,
    "price": 81522.73650813,
    "quote": "USD",
    "change": {
     "d7": -0.550000011920929,
     "h1": -0.239999994635582,
     "y1": 0,
     "d30": 0,
     "h24": -0.5699999928474426,
     "m15": -0.1599999964237213
    },
    "symbol": "BTC",
    "marketCap": 1638797603971,
    "maxSupply": 21000000,
    "volume24h": 20008522729.13716,
    "lastUpdated": "2026-10-23T09:33:15Z",
    "totalSupply": 20102325,
    "circulatingSupply": null
   },
   {
    "id": "eth-ethereum",
    "ath": {
     "date": "2025-08-24T19:24:38Z",
     "price": 4946.22966965,
     "percentFromAth": -51.59
    },
    "name": "Ethereum",
    "rank": 2,
    "price": 2393.21273766,
    "quote": "USD",
    "change": {
     "d7": -2.430000066757202,
     "h1": -0.550000011920929,
     "y1": 0,
     "d30": 0,
     "h24": -0.6899999976158142,
     "m15": -0.3499999940395355
    },
    "symbol": "ETH",
    "marketCap": 292343775491,
    "maxSupply": null,
    "volume24h": 8687702003.714743,
    "lastUpdated": "2026-10-23T09:33:15Z",
    "totalSupply": 120232214,
    "circulatingSupply": null
   }
  ],
  "checkedAt": "2026-10-23T09:36:16.488Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitecheck-crypto-finance-coinpaprika-market-data-16c898fd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.chainmarket-api.workers.dev](https://www.zero.xyz/host/api.chainmarket-api.workers.dev/llms.txt)