Kit Rx: x402 preflight: inspect a paid endpoint before paying
https://api.kit-rx.com/v1/x402/preflightOverview
Sends an unpaid GET to an x402 endpoint and reports what it would charge before any payment: HTTP status and redirects (max 3, re-validated), x402 v2 PAYMENT-REQUIRED header or v1 body challenge and its validity, each accepts entry (scheme, CAIP-2 network and name, atomic amount, USD for canonical USDC, asset check, payTo, timeout, EIP-712 name/version), resource, Bazaar extension, risk flags, and host context from registry RDAP (registrar, domain age) and Cloudflare DoH.
Protocol
x402
Price
$0.0050
Payment Asset
USDC
Payment Network
Base
Category
developer-tools/x402
Provider
Kit Rx
Source
self-registered
Indexed
2026-11-14 22:18:39
Health
Status
healthy
Latency (p50)
—
Uptime (30d)
—
Reliability Score
—
Last Checked
Never
Last Healthy
Never
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
—
Asset Verified
—
Facilitator
—