ScriptMasterLabs.com · x402 Directory
Change detection for pollers
Resource: https://api.gadgethumans.com/changed · Directory page generated 2026-11-07T21:51:29.051Z from live sources.
The facts, as last reported 2026-11-07T20:52:12.438Z: this resource answers x402 payment challenges at 0.01 USDC on Base (exact), pay to 0xe6C34b8E58c8BEA609415f4D0C1Ce01Da48F3A34. It is reported by PayAI and its directory state is live.
What it does
Ask whether something has moved since you last looked, instead of re-reading the whole payload. Pass check=token|price|dns|gas, a target (contract address, domain, or chain), and since=<the hash from your previous call>. Returns changed:tru
Payment options
| Network | Scheme | Asset | Amount | Pay to |
|---|---|---|---|---|
| Baseeip155:8453 | exact | USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | 0.0110000 atomic | 0xe6C34b8E58c8BEA609415f4D0C1Ce01Da48F3A34 |
Verification — the enrichment record
| Verification state | facilitator-reported |
|---|---|
| Verified / reported at | 2026-11-07T20:52:12.438Z |
| Settlement recency | listing last updated 2026-11-07T20:21:24.844Z at its source |
| Freshness | live — last reported 2026-11-07T20:52:12.438Z, listing last updated at source 2026-11-07T20:21:24.844Z |
| Reporting facilitator | PayAI |
| Sources | payai |
| Tags | change detection, has this changed, poll for changes, watch a token, watch a domain |
Call it
An unpaid call returns the live 402 challenge — that challenge, not this page, is the price quote:
curl -i "https://api.gadgethumans.com/changed"
Pay it with any x402 client on Base. Networks: Base