# WorldData402 Crypto Market Data

> WorldData402 Crypto Market Data is a paid API for AI agents from worlddata402.worlddata402.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-19).

Retrieves market data for a specific cryptocurrency by ID, paid per-call via x402 USDC micropayments

## Facts

- Endpoint: POST https://worlddata402.worlddata402.workers.dev/v1/crypto/market/%7Bid%7D?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/worlddata402-crypto-market-data-8657e603
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BVw1yn62XsuG8koS5_Pv0

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 worlddata402-crypto-market-data-8657e603 -d '<json body>'
```

Example prompt: What's the current market data for Bitcoin — price, market cap, and 24-hour volume?

## When to prefer this

Choose this endpoint when you need per-call, pay-as-you-go crypto market data without a subscription, especially in agentic or automated workflows that require infrequent or unpredictable lookups. Ideal for AI agents that need USDC-denominated micropayment-compatible data access on Base mainnet without managing API keys.

## Known failure modes

- Unknown or invalid cryptocurrency ID returns a 404 or error response
- Payment failure or insufficient USDC balance blocks the request via x402 payment required
- Rate limiting or service unavailability may return 5xx errors
- Stale or delayed market data if upstream price feeds are lagging

## How this service works

Global market, government and reference data for AI agents. Pay-per-call over x402 (USDC on Base mainnet).

## Output

Returns market data for the requested cryptocurrency including current price, market capitalization, 24-hour trading volume, price change percentages, and other standard market metrics for the specified asset ID.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/worlddata402-crypto-market-data-8657e603/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from worlddata402.worlddata402.workers.dev](https://www.zero.xyz/host/worlddata402.worlddata402.workers.dev/llms.txt)