# Crypto Microdata Multi-Venue Price Feed (x402)

> Crypto Microdata Multi-Venue Price Feed (x402) is a paid API for AI agents from kr-x402-mvp.kgy5612.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-11-02).

Returns aggregated real-time USD prices for crypto tokens from multiple venues (Binance, Coinbase) with 24h change, paid per-call via x402 USDC micropayment on Base.

## Facts

- Endpoint: GET https://kr-x402-mvp.kgy5612.workers.dev/api/v1/crypto/price?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-microdata-multi-venue-price-feed-x402-379973e9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yfkCEF5Ec6qoXHGio_VKA

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-microdata-multi-venue-price-feed-x402-379973e9
```

Example prompt: What are the current prices of BTC, ETH, and SOL across Binance and Coinbase, including their 24-hour change?

## When to prefer this

Choose this endpoint when you need real-time, multi-venue crypto price data without requiring an API key, especially for AI agents that can pay per-call via x402 USDC micropayments on Base. Ideal for autonomous trading or onchain agents that need lightweight, on-demand price lookups across Binance and Coinbase simultaneously rather than subscribing to a dedicated data feed.

## Known failure modes

- Payment not included or insufficient USDC via x402 — returns 402 Payment Required
- Invalid or unrecognized symbol in the symbols parameter — may return empty or partial results
- Upstream exchange API unavailable — may return stale or incomplete price data
- Malformed query parameter — returns 400 Bad Request

## How this service works

Pay-per-call crypto microdata for trading/onchain AI agents via x402 (USDC on Base): Base gas, token risk, balances, multi-venue prices, Hyperliquid book/funding, kimchi premium. No API keys.

## Output

A JSON object containing per-symbol price data including aggregated USD price, individual Binance USDT and Coinbase USD prices, 24h percentage change, list of source URLs, and an ISO8601 timestamp of when prices were last updated.

## 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": {
      "symbols": {
       "type": "string",
       "examples": [
        "BTC,ETH,SOL",
        "BTC"
       ],
       "description": "Comma-separated symbols (default BTC,ETH,SOL)"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "prices": {
   "BTC": {
    "price_usd": 80867.7,
    "binance_usdt": 80860,
    "coinbase_usd": 80875.4,
    "change_24h_pct": 1.2
   }
  },
  "sources": [
   "https://api.binance.com",
   "https://api.coinbase.com"
  ],
  "updated_at": "2026-10-28T11:00:00Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-microdata-multi-venue-price-feed-x402-379973e9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kr-x402-mvp.kgy5612.workers.dev](https://www.zero.xyz/host/kr-x402-mvp.kgy5612.workers.dev/llms.txt)