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Per-Rail x402 Facilitator Acceptance Decision Procedure for Non-Base Rails
x402
Per-Rail x402 Facilitator Acceptance Decision Procedure for Non-Base Rails is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-16).
Returns a plain-prose LLM-generated decision procedure brief explaining whether and how an x402 facilitator will accept payments on non-Base blockchain rails (e.g. XRPL)
Price / call$0.002
Success—
StatusUnknown
How this service works
Decision procedure for agents buying x402 services on non-Base rails (XRPL, SKALE, Solana). Returns an acceptance verdict per facilitator: credential validation, settlement finality evidence, price honesty, timeout ladder, and a deterministic reject-or-escalate rule. Run before spending on a new rail.
Output
A JSON object containing a plain-prose 'brief' field (120+ words) describing the decision procedure an x402 facilitator uses to evaluate acceptance for non-Base rails such as XRPL, along with the topic, model name used for generation, ISO-8601 generation timestamp, generation source enum (llm/reasoning/deterministic), service slug, provider name (K-2SO), and payment confirmation fields.
Example use cases
Evaluating XRPL as an x402 payment rail
“Can you get me the decision procedure for whether an x402 facilitator will accept XRPL as a payment rail? I want to understand the acceptance criteria before routing my agent's payments there.”
Autonomous agent multi-rail payment routing logic
“My agent is about to pay for a service on a non-Base chain — pull the x402 facilitator acceptance ladder brief so it can decide whether this rail is viable before sending funds.”
Comparing acceptance policies across x402 rails
“I'm building an agent that needs to pick between multiple payment rails for x402 transactions. Get me the facilitator acceptance decision procedure for non-Base rails so I can hardcode the right logic.”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/per-rail-x402-facilitator-acceptance-for-non-bas?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an autonomous agent needs to programmatically determine whether a specific non-Base blockchain rail (e.g. XRPL) will be accepted by an x402 facilitator before routing a payment. Prefer this over general x402 documentation when you need a structured, agent-consumable decision brief with explicit acceptance criteria rather than human-readable docs. Most useful when building payment routing logic for multi-rail x402 agents or validating rail compatibility at runtime.
Side effects
- HTTP 402 returned if USDC payment not yet settled — agent must pay exact amount and retry with PAYMENT-SIGNATURE header
- Malformed or missing 'input.type' or 'input.method' fields cause validation errors
- Topic override may produce off-topic or generic briefs if not well-scoped
- LLM-generated briefs may vary in quality or specificity across calls
- Non-idiomatic HTTP methods (POST, PUT) rejected — only GET/HEAD/DELETE accepted
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": "per-rail-x402-facilitator-acceptance-for-non-bas",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "per-rail-x402-facilitator-acceptance-for-non-bas",
"provider": "K-2SO"
}
}Tags
x402
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