# Strale Crypto Price API

> Strale Crypto Price API is a paid API for AI agents from api.strale.io, paid per call via x402, $0.054/call, status unknown (last checked 2026-09-15).

Fetches the current price of a cryptocurrency (by name or symbol) optionally in one or more fiat or crypto currencies, with an audit record and cryptographic chain hash.

## Facts

- Endpoint: GET https://api.strale.io/x402/v2/crypto-price
- Price: $0.054/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/strale-crypto-price-api-3a2bfd8c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kov3QcFsv9-bV7OkFQ3Zo

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 strale-crypto-price-api-3a2bfd8c
```

Example prompt: What's the current price of Bitcoin right now? I need it with an audit trail.

## When to prefer this

Choose this endpoint when you need a verifiable, auditable crypto price with a cryptographic chain hash — ideal for compliance-sensitive workflows, AI agent pipelines requiring trust provenance, or any scenario where you need a tamper-evident record of the price fetched. Prefer this over generic price APIs when auditability and trust infrastructure matter.

## Known failure modes

- Unrecognized coin name or symbol returns an error — use canonical names like 'bitcoin', 'ethereum', 'solana'
- Missing required 'coin' query parameter causes a 400 Bad Request
- Payment failure or insufficient USDC balance prevents the call from executing
- Upstream price data provider outage may cause stale or unavailable prices
- Rate limiting if too many calls are made in quick succession

## How this service works

The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.

## Output

Returns the current price of the requested cryptocurrency, optionally denominated in one or more currencies. Each response includes a cryptographic audit record with chain hashing for verifiability.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/strale-crypto-price-api-3a2bfd8c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.strale.io](https://www.zero.xyz/host/api.strale.io/llms.txt)