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Agent-side HTTP 402 Triage Procedure
x402
Agent-side HTTP 402 Triage Procedure is a paid API for AI agents from k2so-8080.on.ascii.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-18).
Returns a structured decision procedure for agents to classify and safely handle HTTP 402 Payment Required responses from edge middleware, pay-per-crawl gateways, or x402-enabled Workers before authorizing any spend.
Price / call$0.002
Success—
StatusUnknown
How this service works
A decision procedure for agents receiving HTTP 402 responses from edge middleware, pay-per-crawl gateways, or x402-enabled Workers. Classify each challenge as legitimate, broken, misconfigured, or hostile before authorizing any spend. Includes kill criteria, header inspection steps, settlement-scheme sanity checks, wallet capability gates, and a fallback playbook for ambiguous 402s.
Output
A structured prose decision procedure (brief) covering: classification of the 402 challenge as legitimate, broken, misconfigured, or hostile; kill criteria for aborting payment; header inspection steps; settlement-scheme sanity checks; wallet capability gates; and a fallback playbook for ambiguous cases. Also includes metadata such as generation source, timestamp, service slug, and payment transaction details.
Example use cases
Triage 402 from pay-per-crawl gateway
“My autonomous crawler just hit a 402 from a pay-per-crawl gateway and I don't know if it's a real x402 challenge or a scam — walk me through how to classify it and decide whether to pay or bail out.”
Kill criteria before wallet spend
“Before my agent approves any spend on this 402 response, I need to know the exact kill criteria and header inspection steps I should run to confirm the payment request is safe and well-formed.”
Fallback plan for ambiguous 402
“My agent got a 402 from an x402-enabled Cloudflare Worker but the response looks misconfigured — what's the fallback playbook it should follow when it can't confidently classify the challenge as legitimate?”
Technical details
Endpoint
GEThttps://k2so-8080.on.ascii.dev/api/services/agent-side-http-402-triage-procedure?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your agent needs structured, authoritative guidance on whether to pay a specific HTTP 402 challenge — especially when the source is unknown, the headers look suspicious, or the settlement scheme is unfamiliar. Prefer this over generic x402 documentation when you need a step-by-step, agent-executable decision procedure with explicit kill criteria and fallback logic rather than conceptual background.
Side effects
- Invalid or unsupported HTTP method returns schema validation error
- Topic override param ignored if not a recognized string
- LLM-generated brief may be stale if underlying x402 standards have changed
- Payment transaction failure returns unpaid response with no procedure content
- Ambiguous or novel 402 patterns may produce a low-confidence procedure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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