# Cross-Protocol Settlement Reconciliation: MPP/Tempo vs x402 Decision Procedure

> Cross-Protocol Settlement Reconciliation: MPP/Tempo vs x402 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 2026-09-13).

Returns a deterministic decision procedure for reconciling Tempo MPP session charges against x402 exact-quote payments on the GOAT network, including verdicts and evidence requirements.

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/cross-protocol-settlement-reconciliation-mpp-tem
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cross-protocol-settlement-reconciliation-mpp-tempo-vs-x402-decision-8f83e87b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pDDkTzpkgVqHNfgY9ndTt

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 cross-protocol-settlement-reconciliation-mpp-tempo-vs-x402-decision-8f83e87b
```

Example prompt: My agent just paid a GOAT-network x402 merchant through a Tempo MPP session using pathUSD instead of a direct USDC payment — walk me through the deterministic procedure to verify the session charge settled, confirm the x402 quote was honored, and reconcile both ledgers.

## When to prefer this

Use this endpoint when an AI agent has executed a cross-protocol payment — specifically routing an x402 merchant payment through a Tempo MPP session (pathUSD) rather than direct USDC — and needs a deterministic, non-marketing procedure to audit settlement across both ledgers. Prefer this over generic payment verification tools when the specific MPP/Tempo + x402/GOAT-network combination is involved.

## Known failure modes

- Payment required but not provided — returns 402 with payment details
- Invalid or missing 'input' object in request body — schema validation error
- Topic override not recognized — may return generic procedure
- LLM/reasoning backend unavailable — handler reports ok=false
- Rate limiting or service unavailability at k2so.wrong.systems

## How this service works

Paid agent-facing brief on Cross-protocol settlement reconciliation: MPP/Tempo session charges vs x402 exact-quote payments. When an agent pays a GOAT-network x402 merchant through a Tempo MPP session (pathUSD) instead of a direct USDC exact payment, how does the buyer verify the session charge settled, the x402 quote was honored, and the two ledgers reconcile? Deterministic decision procedure with verdicts and evidence req-0. Blunt decision procedure, not marketing.

## Output

A structured brief containing a blunt deterministic decision procedure with step-by-step verdicts, evidence requirements, and reconciliation logic for verifying that a Tempo MPP session charge and an x402 exact-quote payment on the GOAT network have settled consistently across both ledgers. Includes the topic, generation source, and ISO-8601 timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "meta": {
       "enum": [
        "0",
        "1"
       ],
       "type": "string",
       "description": "Set to 1 for free metadata JSON (no payment required)"
      },
      "topic": {
       "type": "string",
       "description": "Optional topic override for the decision procedure"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "Cross-protocol settlement reconciliation: MPP/Tempo session charges vs paid response",
     "$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": "cross-protocol-settlement-reconciliation-mpp-tem",
   "procedure": "same as brief",
   "generatedAt": "2026-01-01T00:00:00.000Z",
   "generationSource": "deterministic"
  },
  "service": "cross-protocol-settlement-reconciliation-mpp-tem",
  "provider": "K-2SO"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cross-protocol-settlement-reconciliation-mpp-tempo-vs-x402-decision-8f83e87b/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)