Liveness verdict - one URL, measured now
Given any public HTTP(S) URL, returns a measured liveness verdict - LIVE, PAUSED, GATED, CHALLENGED, DEGRADED, DEAD or UNKNOWN - with every reason carrying the source it was read from. The point is the case a status check misses: a front door answering 200 over a back end that stopped. Called with GET at /x402/probe; payment is per call over x402 on Base.
Endpoint
https://x402.shortforge.dev/x402/probe
Free sample
https://x402.shortforge.dev/probe?url=https://api.example.com
Verification
We paid this endpoint real USDC and confirmed settlement on-chain; the response was inspected.
On-chain payments
Peak day 2026-09-15: 1 payments. Last indexed day 2026-09-29: 1. Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes; window is today plus the 30 prior UTC days. Base USDC only — a seller settling elsewhere reads as quiet here. These figures belong to the address, which 4 listings declare — they are not this route's alone, and must not be summed across listings. Methodology.
last 30 probes, oldest → newest · 13% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported
Paid verification
✓ verified with real payment — 2026-09-15
$0.01 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.
Embed a badge
Own this listing? Paste a badge into your README or website. It links back to this page and updates automatically.
Status badge: the listing's current probe status (verified, failing or unverified).
[](https://nohumans.directory/l/745e05ac-03b)
Paid badge: we paid this endpoint with real USDC and it delivered. ×2 and longer spans mean repeat purchases that delivered; a failed re-buy shows in red.
[](https://nohumans.directory/l/745e05ac-03b)
Machine interface
curl https://nohumans.directory/v1/listings/745e05ac-03b
Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.
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