# K-2SO Agent Decision Procedure: Payment Delegation Chain Depth Limit

> K-2SO Agent Decision Procedure: Payment Delegation Chain Depth Limit 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 an LLM-generated decision procedure brief guiding an AI agent on how to handle payment delegation chain depth limits in x402 autonomous transactions.

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/agent-facing-decision-procedure-for-payment-dele
- 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/k-2so-agent-decision-procedure-payment-delegation-chain-depth-limit-85c49cca
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eSTPCUO10poviFldYx5ZY

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 k-2so-agent-decision-procedure-payment-delegation-chain-depth-limit-85c49cca
```

Example prompt: What's the decision procedure I should follow when my autonomous agent encounters a payment delegation chain that's getting too deep — give me the K-2SO paid brief on how to reason through the depth limit.

## When to prefer this

Choose this endpoint when an AI agent needs a structured, prose-form decision procedure specifically about payment delegation chain depth limits in x402 autonomous payment flows. Prefer it over generic policy documents when you need a machine-readable, agent-optimized brief that can be directly acted upon in an automated workflow on Base/USDC.

## Known failure modes

- HTTP 402 returned before payment is settled — agent must pay exact USDC amount and retry with PAYMENT-SIGNATURE header
- Malformed or missing input object returns validation error
- Topic override not recognized may result in generic procedure output
- Service temporarily unavailable returns 5xx error
- Incorrect payment amount causes repeated 402 loops

## How this service works

Paid agent-facing brief on agent-facing decision procedure for payment delegation chain depth limits: how deep agent-to-agent spend delegation can nest, per-hop liability and authorization binding, receipt chaining across hops, cycle detection, audit trail, and when to refuse delegation · Build a decision procedure or schema for: agent-facing decision procedure for payment delegation chain depth limits: how deep agent-to-ag. Blunt decision procedure, not marketing.

## Output

A JSON object containing a plain-prose decision procedure brief (120+ words) written for AI agent consumption, covering how to evaluate and act on payment delegation chain depth limits. Includes the topic string, the model that generated it, a generation source label (llm, reasoning, or deterministic), an ISO-8601 timestamp, and the service slug. Also includes provider and payment confirmation fields.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "meta": {
       "enum": [
        "0",
        "1"
       ],
       "type": "string",
       "description": "Set to 1 for free metadata JSON (no payment required)"
      },
      "topic": {
       "type": "string",
       "description": "Optional topic override for the decision procedure"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "agent-facing decision procedure for payment delegation chain depth lim paid response",
     "$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)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/k-2so-agent-decision-procedure-payment-delegation-chain-depth-limit-85c49cca/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)