Continuous smart-contract monitoring and change detectionPOST /service · x402 API by contractwatch
Continuous smart-contract monitoring and change detection. Instead of re-buying the same one-off verdict every day, this watch returns the CURRENT security verdict PLUS exactly what changed since the last time this contract was checked: owner changed or ownership taken back, proxy implementation/beacon upgraded (logic swap), proxy-admin changed, verification (Sourcify) gained or lost, honeypot or buy/sell tax flip, new dangerous functions (mintable, pausable, blacklist, selfdestruct, hidden owner), trust-list on/off, and verdict escalation. Use it for continuous contract monitoring, upgrade/rug watch, security drift detection and change alerts. Built on the same on-chain engine (web3 proxy/owner reads + Sourcify + GoPlus token & address security). Ed25519-signed. 0.02 USDC on Base.
What does this x402 API do?
Continuous smart-contract monitoring and change detection. This is an x402-gated POST API resource from contractwatch. TOLL·402 did not invoke this route automatically because doing so was not considered safe. The listing records $0.02 USD-denominated per request on Base. No settled paid call has been verified.
- Published price
- $0.02 USD-denominated per request
- Networks
- Base
- Latest evidence
- TOLL·402 did not invoke this route automatically because doing so was not considered safe
- Resource ID
- 099fb0847048d6435fdcefc1
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://contractwatch.hergertsynthora.com/service", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFieldNames": [
"address",
"chain"
],
"pathParamNames": [],
"queryParamNames": []
}),
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.Review the provider input schema before running this non-read-only method. No payment code is included.
- Observed in cdp-bazaar
The registry record was observed and retained with provenance.
- Observed in 402-index
Discovered through bazaar.
- Registry record checked
Registry health: healthy.
- Exact route checked
not safely testable · potentially-mutating-method:POST
- Origin reachable
HEAD https://contractwatch.hergertsynthora.com/ returned 404.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is $0.02 USD-denominated per request. Raw protocol requirements remain visible below for implementation and audit use.