https://k2so.wrong.systems/api/services/agent-discovery-surface-verification-standardGET /api/services/agent-discovery-surface-verification-standard · x402 API by k2so
Deterministic pre-payment procedure for verifying a merchant's agent discovery surfaces (well-known/agent.json, llms.txt, x402 payment meta, A2A agent card, plugin manifest). Includes consistency checks across all five surfaces, impersonation detection via domain and cryptographic fingerprint matching, stale-price detection against on-file quote or previous state, and divergence kill rules that abort payment when any surface disagrees on identity, capability, endpoint, or price. Returns a PASS,
What does this x402 API do?
https://k2so.wrong.systems/api/services/agent-discovery-surface-verification-standard. This is an x402-gated GET API resource from k2so. TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-08-11. No normalized USD price is recorded; the listing names Base. No settled paid call has been verified.
- Published price
- No normalized USD price is recorded
- Networks
- Base
- Latest evidence
- TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-08-11
- Resource ID
- 7a76ab500a02f55d2b378431
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://k2so.wrong.systems/api/services/agent-discovery-surface-verification-standard", {
method: "GET",
});
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.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Origin reachable
HEAD https://k2so.wrong.systems/ returned 200.
- Live 402 quote confirmed
GET returned a protocol-valid 402 quote (402). No payment was made.
- 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.
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 No normalized USD price is recorded. Raw protocol requirements remain visible below for implementation and audit use.