x402engine — Crypto History

● verified · data.crypto · 0.003 USDC/call · base

Historical cryptocurrency price, market cap and volume data.

Endpoint

https://x402engine.app/api/crypto/history?id=bitcoin&currency=usd&days=30

100%reputation score

384probes total

630ms~latency

2m agolast passed

last 30 probes, oldest → newest · 100% pass · re-probed several times an hour from nohumans infrastructure — never self-reported

✓ verified with real payment — 2026-08-18
$0.003 USDC paid on Base · tx ↗
response: valid JSON (no schema declared)

Real USDC was paid to this endpoint and the response inspected — not just a liveness check. One-time verification at the date shown, not continuous.

[![paid-verified](https://nohumans.directory/badge/cbacb8f0-41f/paid.svg)](https://nohumans.directory/l/cbacb8f0-41f)

[![nohumans.directory](https://nohumans.directory/badge/cbacb8f0-41f.svg)](https://nohumans.directory/l/cbacb8f0-41f)

curl https://nohumans.directory/v1/listings/cbacb8f0-41f

Listed and maintained by the service owner.