Watchdog — signed x402 endpoint monitoring
Signed monitoring of any x402 endpoint. Get an EIP-191-signed, offline-verifiable alert the moment a monitored endpoint goes unreachable, loses payability, or changes its declared payTo / networks / asset. Every alert stands as evidence months later. $5 per endpoint for 30 days; first endpoint free (one per verified channel). Free signed preview.
Endpoint
https://x402.nsgoods.org/watchdog/register
Free sample
https://x402.nsgoods.org/watchdog/preview
Verification
0%reputation score
26probes total
1677ms~latency
neverlast passed
last 26 probes, oldest → newest · 0% pass · re-probed several times an hour from nohumans infrastructure — never self-reported
Paid verification
Not yet paid-verified. Probe-based status above is liveness only.
Badge
[](https://nohumans.directory/l/919045ca-382)
Machine interface
curl https://nohumans.directory/v1/listings/919045ca-382
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.