# Double-Pay Risk Adjudication & Emerging Rail Adoption Decision Procedure > Double-Pay Risk Adjudication & Emerging Rail Adoption Decision Procedure is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-15). Returns an LLM-generated or deterministic decision procedure for adjudicating double-pay risk and evaluating emerging payment rails (XRPL, Solana, Casper csprUSD) for agent payment settlement via x402. ## Facts - Endpoint: GET https://k2so.wrong.systems/api/services/double-pay-risk-adjudication-and-emerging-rail-a?utm_source=zero.xyz - Price: $0.002/call - Payment: x402 - Status: unknown - Last checked: 2026-10-15 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/double-pay-risk-adjudication-emerging-rail-adoption-decision-procedure-30e6feee - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3k1jQ-BwZ2NvRFp71Ctaq Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability double-pay-risk-adjudication-emerging-rail-adoption-decision-procedure-30e6feee ``` Example prompt: Give me a blunt decision procedure for adjudicating double-pay risk when settling agent payments on emerging rails like XRPL and Solana — I want to know when to trust a settlement and when to flag it as a potential duplicate. ## When to prefer this Choose this endpoint when an agent needs a ready-made, structured decision procedure specifically for double-pay risk adjudication across XRPL, Solana, and Casper csprUSD rails at x402 payment scale. Prefer it over building custom logic when the agent lacks domain knowledge about emerging rail maturity or double-spend detection heuristics. Less suitable if you need real-time transaction verification (see sibling cross-ledger settlement verification endpoint) or rail selection without double-pay focus. ## Known failure modes - Missing or invalid payment header results in HTTP 402 with payment required details - Invalid query parameter values (e.g. meta not '0' or '1') may return a 400-level error - LLM generation failure may fall back to deterministic output or return ok:false in result - Endpoint may return stale or cached procedure if generation source is 'deterministic' - Network errors or service downtime at k2so.wrong.systems return no response ## How this service works Paid agent-facing brief on double-pay risk adjudication and emerging rail adoption for agent payment settlement, XRPL facilitator at ~2M agent transactions, Solana agent finance, Casper csprUSD x402 Foundation entry · Build a decision procedure or schema for: double-pay risk adjudication and emerging rail adoption for agent payment settlement, XRPL facilitator at ~2M agent transactions, Solana agent finance, Casper csprUSD -0. Blunt decision procedure, not marketing. ## Output A JSON object containing a plain-prose decision procedure or brief (120+ words) covering double-pay risk adjudication and emerging payment rail adoption logic for agent settlement. Includes metadata: generation source (llm, reasoning, or deterministic), model name, topic, service slug, and ISO-8601 timestamp. Also includes payment confirmation metadata (payer, transaction, selfPay flag). ## Request schema (JSON Schema) ```json { "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "required": [ "input" ], "properties": { "input": { "type": "object", "required": [ "type", "method" ], "properties": { "type": { "type": "string", "const": "http" }, "method": { "enum": [ "GET", "HEAD", "DELETE" ], "type": "string" }, "queryParams": { "type": "object", "properties": { "meta": { "enum": [ "0", "1" ], "type": "string", "description": "Set to 1 for free metadata JSON (no payment required)" }, "topic": { "type": "string", "description": "Optional topic override for the decision procedure" } } } }, "additionalProperties": false }, "output": { "type": "object", "required": [ "type" ], "properties": { "type": { "type": "string" }, "example": { "type": "object", "title": "double-pay risk adjudication and emerging rail adoption for agent paym paid response", "$schema": "https://json-schema.org/draft/2020-12/schema", "required": [ "ok", "paid", "service", "provider", "result" ], "properties": { "ok": { "type": "boolean" }, "paid": { "type": "boolean" }, "result": { "type": "object", "required": [ "ok", "service" ], "properties": { "ok": { "type": "boolean", "description": "Handler success" }, "brief": { "type": "string", "description": "Decision procedure prose for agents" }, "model": { "type": "string" }, "topic": { "type": "string" }, "service": { "type": "string", "description": "Service slug" }, "procedure": { "type": "string" }, "generatedAt": { "type": "string", "description": "ISO-8601 timestamp" }, "generationSource": { "enum": [ "llm", "reasoning", "deterministic" ], "type": "string" } } }, "payment": { "type": "object", "properties": { "code": { "type": "string" }, "payer": { "type": "string" }, "detail": { … (truncated) ``` ## Response schema (JSON Schema) ```json { "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": "double-pay-risk-adjudication-and-emerging-rail-a", "procedure": "same as brief", "generatedAt": "2026-01-01T00:00:00.000Z", "generationSource": "deterministic" }, "service": "double-pay-risk-adjudication-and-emerging-rail-a", "provider": "K-2SO" } } ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/double-pay-risk-adjudication-emerging-rail-adoption-decision-procedure-30e6feee/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from k2so.wrong.systems](https://www.zero.xyz/host/k2so.wrong.systems/llms.txt)