# Per-Rail Post-Quantum Migration Status Map for Agent Settlement Receipts

> Per-Rail Post-Quantum Migration Status Map for Agent Settlement Receipts is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status down (last checked 2026-10-31).

Returns a per-rail verdict on whether agent settlement receipts are accepted or rejected under an active post-quantum cryptography migration window, covering hybrid PQ signing requirements across Base, Solana, XRPL, TRON, Casper, and CSPR.

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/per-rail-post-quantum-migration-status-map-for-a?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: down
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/per-rail-post-quantum-migration-status-map-for-agent-settlement-904df982
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cmtB7mtAq7mzxD2XANc57

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 per-rail-post-quantum-migration-status-map-for-agent-settlement-904df982
```

Example prompt: Check the post-quantum migration status for my agent settlement receipts across all rails — specifically whether classical ECDSA or EdDSA receipts still clear on Base, Solana, XRPL, TRON, Casper, and CSPR right now, and give me the accept/reject verdict with the re-check interval.

## When to prefer this

Use this endpoint when an autonomous agent holds settlement receipts across multiple blockchain rails and needs a per-rail ruling on whether those receipts are cryptographically valid under an active post-quantum migration window. It is specifically designed for the mid-migration period where some rails have flipped to hybrid PQ requirements while others still accept classical signatures. Prefer this over generic chain status APIs when you need an actionable accept/reject verdict with evidence and a re-check interval rather than raw chain metadata.

## Known failure modes

- Payment not included — endpoint requires $0.002 USDC x402 payment header; returns 402 without it
- Invalid or missing query parameters return an error or default topic behavior
- LLM-backed generation may time out or return degraded content under load
- Rail status information may lag real-time chain state changes
- Topic override may return out-of-scope results if the override is unrelated to PQ migration

## How this service works

Decision procedure for agents holding settlement receipts across rails in a post-quantum migration window. Returns a per-rail status record: for each rail (Base, Solana, XRPL, TRON, Casper, CSPR) whether signing and verification paths enforce hybrid PQ chains (ML-DSA, SLH-DSA), whether classical ECDSA or EdDSA receipts still clear inside a declared window, and the exact accept or reject verdict per receipt with an evidence tuple and re-check interval. Covers mid-window rail flips, cross-scheme

## Output

A structured decision procedure response containing per-rail status records indicating: whether hybrid PQ chains (ML-DSA, SLH-DSA) are enforced for signing and verification; whether classical ECDSA or EdDSA receipts still clear within the declared migration window; an accept or reject verdict for receipts with an evidence tuple; a re-check interval; and prose explanation of the procedure. Response includes metadata such as generation timestamp, model used, and generation source.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "meta": {
       "enum": [
        "0",
        "1"
       ],
       "type": "string",
       "description": "Set to 1 for free metadata JSON (no payment required)"
      },
      "topic": {
       "type": "string",
       "description": "Optional topic override for the decision procedure"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "per-rail post-quantum migration status map for agent settlement receipts paid response",
     "$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": "per-rail-post-quantum-migration-status-map-for-a",
   "procedure": "same as brief",
   "generatedAt": "2026-01-01T00:00:00.000Z",
   "generationSource": "deterministic"
  },
  "service": "per-rail-post-quantum-migration-status-map-for-a",
  "provider": "K-2SO"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/per-rail-post-quantum-migration-status-map-for-agent-settlement-904df982/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)