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Live HTTP 405 Method-Cluster Endpoint Scorecard for Agent Payment Endpoints
x402
Live HTTP 405 Method-Cluster Endpoint Scorecard for Agent Payment Endpoints is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status down (last checked 2026-10-13).
Scores a fixed set of x402 merchant URLs that advertise paid endpoints but respond with HTTP 405, classifying each by whether it 405s on GET-only or all methods and issuing a blunt verdict.
Price / call$0.002
Success—
StatusDown
How this service works
Paid agent-facing brief on live HTTP 405 method-cluster endpoint scorecard for agent payment endpoints: score a named set of x402 merchant URLs (tools.halowerk.com/v1/agent/access, stableupload.dev/api/upload, apiacre.com/v1/data/convert, stableenrich.dev/api/exa/search, hypercli solo) that advertise paid endpoints but answer HTTP 405 with no 402 challenge. Verdict ladder per endpoint: 405-on-GET-only vs 405-on-all-methods, -0. Blunt decision procedure, not marketing.
Output
Returns a JSON object with ok/paid flags, a plain-prose decision procedure (120+ words) classifying each of the named x402 merchant URLs on a verdict ladder (405-on-GET-only vs 405-on-all-methods), a service slug, provider name, ISO-8601 timestamp, and generation source (llm/reasoning/deterministic).
Example use cases
Pre-payment x402 endpoint health check
“Before I route any agent payments, can you score those x402 merchant URLs — tools.halowerk.com, stableupload.dev, apiacre.com — and tell me which ones are genuinely issuing 402 challenges on GET requests versus just throwing 405 errors?”
Debugging a broken paid API endpoint
“My agent keeps hitting a 405 on stableenrich.dev's paid endpoint instead of getting a 402 payment challenge — can you run the method-cluster scorecard using a HEAD request to figure out if it 405s on all methods or just GET?”
Vetting new x402 listings before integration
“I'm about to integrate with some x402 listings from the marketplace — can you give me the blunt scorecard on whether those advertised payment endpoints actually work or just return 405 with no payment challenge at all?”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/live-http-405-method-cluster-endpoint-scorecard?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a pre-integration health check on a specific set of known x402 merchant URLs that are suspected to be misconfigured — specifically when they advertise payment gating but return HTTP 405 instead of a 402 challenge. It provides a structured, blunt verdict rather than generic API monitoring, making it valuable for agent payment pipeline validation and x402 ecosystem due diligence.
Side effects
- Missing or invalid 'method' field returns a schema validation error
- Requesting a method not in the allowed enum (GET/HEAD/DELETE) is rejected
- Payment not fulfilled results in no paid response body being returned
- Endpoint may return stale or cached assessments if underlying merchant URLs change
- LLM-generated briefs may vary in specificity depending on model availability
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"paid": true,
"result": {
"ok": true,
"brief": "plain prose decision procedure (120+ words)",
"model": "deepseek/deepseek-v4-flash-0731",
"topic": "string topic",
"service": "live-http-405-method-cluster-endpoint-scorecard",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "live-http-405-method-cluster-endpoint-scorecard",
"provider": "K-2SO"
}
}Tags
x402
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