# Crypto Market Data – Live Prices Top 50

> Crypto Market Data – Live Prices Top 50 is a paid API for AI agents from crypto-market-data.zafermemon87.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-29).

Returns live USD prices plus 5-minute, 1-hour, 4-hour, and 24-hour percentage changes and 24-hour volume for up to 50 top crypto tokens, refreshed every minute.

## Facts

- Endpoint: GET https://crypto-market-data.zafermemon87.workers.dev/v1/prices?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-market-data-live-prices-top-50-1171b45c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DwVYarf4GzeDDe511zNnc

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 crypto-market-data-live-prices-top-50-1171b45c
```

Example prompt: Can you pull live prices for BTC, ETH, and SOL right now, including their 5-minute, 1-hour, and 24-hour percent changes?

## When to prefer this

Choose this endpoint when you need a quick, broad snapshot of current prices and short-term momentum (5m/1h/4h/24h changes) for up to 50 major crypto tokens in a single call. It is ideal for portfolio dashboards, pre-trade checks, or momentum screening where per-minute freshness is sufficient. For deeper per-coin data (order book, funding rates, liquidations), use the sibling single-coin or derivatives endpoints.

## Known failure modes

- Invalid ticker symbols result in those tokens being omitted or an error row
- Requesting more than 50 tokens may be silently truncated or rejected
- Data may be up to 60 seconds stale due to 1-minute refresh cadence
- Payment failure (x402) returns a 402 response with no data
- Downstream data source outage may return stale or empty rows

## How this service works

Live prices with 5-minute, 1-hour, 4-hour and 24-hour change and 24-hour volume for the top 50 crypto coins, refreshed every minute.

## Output

A JSON array of rows, each containing: token symbol, rank, current USD price, percentage change over 5 minutes / 1 hour / 4 hours / 24 hours, and 24-hour trading volume in USD. Also includes a snapshot timestamp, data age in seconds, a human-readable summary line, and a snapshot seal for integrity verification.

## 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": {
      "tokens": {
       "type": "string",
       "description": "Comma-separated tickers, e.g. BTC,ETH,SOL (up to 50). Empty means all top 50."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "Public market data, refreshed every minute. Not financial advice.",
  "rows": [
   {
    "rank": 1,
    "price": 81538,
    "token": "BTC",
    "change_1h_pct": -0.32,
    "change_4h_pct": -0.24,
    "change_5m_pct": 0.2,
    "change_24h_pct": -0.35,
    "volume_24h_usd": 1073687475
   },
   {
    "rank": 2,
    "price": 2398.77,
    "token": "ETH",
    "change_1h_pct": -0.25,
    "change_4h_pct": -0.11,
    "change_5m_pct": 0.31,
    "change_24h_pct": -0.34,
    "volume_24h_usd": 740411768
   }
  ],
  "tool": "prices",
  "as_of": "2026-10-23T20:03:00+05:30",
  "plain": "2 coins. Biggest 1-hour move: BTC -0.3%.",
  "engine": "data-1.0",
  "charged": true,
  "price_usd": null,
  "data_age_s": 60,
  "snapshot_seal": "eb08dce6d854951431a0fb2732282227e1d954ec072422c9bfc5bee2f3ed695f"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-market-data-live-prices-top-50-1171b45c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from crypto-market-data.zafermemon87.workers.dev](https://www.zero.xyz/host/crypto-market-data.zafermemon87.workers.dev/llms.txt)