# MX Data Helper - Crypto Price

> MX Data Helper - Crypto Price is a paid API for AI agents from temporary-prompt-onyx-8ryoe7p.vercel.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Returns current cryptocurrency prices for one or more coins by symbol via a pay-per-call API on Base mainnet

## Facts

- Endpoint: POST https://temporary-prompt-onyx-8ryoe7p.vercel.app/v1/crypto_price
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mx-data-helper-crypto-price-aff9e670
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eiHVmvJWcStb18KTuLiWQ

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 mx-data-helper-crypto-price-aff9e670 -d '<json body>'
```

Example prompt: What are the current prices of bitcoin and ethereum?

## When to prefer this

Choose this endpoint when you need lightweight, pay-per-call cryptocurrency price lookups without a subscription, especially in agentic workflows on Base mainnet using x402 micropayments. Suitable for fetching prices for one or more coins in a single call at very low cost ($0.002 USDC).

## Known failure modes

- Unrecognized coin symbol returns error or empty result
- Network or provider outage causes timeout
- Payment failure on Base mainnet results in 402 rejection
- Malformed request body (missing 'coins' array) returns validation error
- Rate limiting or per-call quota exceeded

## How this service works

Pay-per-call x402 data services on Base mainnet

## Output

Returns current market price data for each requested cryptocurrency symbol, likely including price values in USD or a base currency, keyed by the coin identifiers provided in the request.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "coins"
 ],
 "properties": {
  "coins": {
   "type": "array",
   "description": "Coin symbols e.g. bitcoin, ethereum"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mx-data-helper-crypto-price-aff9e670/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from temporary-prompt-onyx-8ryoe7p.vercel.app](https://www.zero.xyz/host/temporary-prompt-onyx-8ryoe7p.vercel.app/llms.txt)