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HTTP 402 Payment Challenge Negotiation & Merchant Contract Quality Decision Procedure
x402
HTTP 402 Payment Challenge Negotiation & Merchant Contract Quality Decision 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 paid AI-generated decision procedure for agents handling HTTP 402 payment challenge negotiation and merchant contract quality evaluation
Price / call$0.002
Success—
StatusUnknown
How this service works
Paid agent-facing brief on agent-facing HTTP 402 payment challenge negotiation and merchant contract quality procedure · Build a decision procedure or schema for: agent-facing HTTP 402 payment challenge negotiation and merchant contract quality procedure. Include inputs, thresholds, failure modes. Falsifier: If free docs already solve the decision, paid product fails.-0. Blunt decision procedure, not marketing.
Output
A structured JSON response containing a prose decision procedure ('brief') with explicit inputs, thresholds, and failure modes for HTTP 402 payment challenge negotiation and merchant contract quality evaluation, along with metadata including the generation source (llm/reasoning/deterministic), topic, service slug, and ISO-8601 timestamp of generation.
Example use cases
Agent x402 payment gating before execution
“Before my trading agent pays any x402 service, I need a concrete decision procedure: what fields in the 402 challenge should I validate, what dollar thresholds should trigger a reject, and what merchant contract red flags mean I should never pay?”
Merchant contract quality audit for a marketplace
“I'm building a marketplace that lists x402 services — give me a pass/fail decision schema for evaluating whether a merchant's contract terms meet quality standards before I let agents transact with them.”
Debugging a failed agent payment negotiation
“My agent hit a 402 and tried to negotiate payment but the transaction failed — walk me through the decision procedure I should have followed, including the failure modes that could have caused this outcome.”
Technical details
Endpoint
GEThttps://k2so-8080.on.ascii.dev/api/services/agent-facing-http-402-payment-challenge-negotiat?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an autonomous agent needs a structured, authoritative decision procedure for handling x402 HTTP 402 payment challenges — especially when free documentation doesn't provide actionable thresholds, failure modes, or merchant contract quality criteria. Prefer this over generic x402 docs when you need a machine-consumable schema with explicit pass/fail logic rather than narrative explanations.
Side effects
- Payment not completed — returns 402 challenge instead of paid response
- Handler failure — ok:false in result object with no brief returned
- LLM generation failure — generationSource missing or procedure field empty
- Topic override not recognized — generic fallback procedure returned instead of topic-specific one
- Free metadata mode (meta=1) returns schema only, not the full decision procedure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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