# Standing Spend Delegation Boundary Standard

> Standing Spend Delegation Boundary Standard 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 decision procedure for when a one-off x402 payment mandate should be elevated to a standing delegation, including rules for merchant allowlists, per-period spend caps, expiry, revocation triggers, and refusal criteria.

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/standing-spend-delegation-boundary-standard
- 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/standing-spend-delegation-boundary-standard-74157a50
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7wK-B9DOLW2J3CsWzO4E0

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 standing-spend-delegation-boundary-standard-74157a50
```

Example prompt: Walk me through the decision procedure for when a one-off x402 payment mandate should become a standing delegation — I need the rules around merchant allowlists, per-period spend caps, expiry, revocation triggers, and when to flat-out refuse the escalation.

## When to prefer this

Choose this endpoint when an autonomous agent needs a principled, policy-grounded decision framework for escalating one-off x402 payments to standing delegations — especially when designing spend governance, setting delegation bounds, or auditing agent payment authority. Prefer over generic financial policy guides because it is specifically tailored to x402 protocol semantics and autonomous agent contexts.

## Known failure modes

- Payment not included — returns HTTP 402 requiring x402 micropayment before content is served
- Invalid method — only GET, HEAD, DELETE are accepted
- Malformed query parameters — topic must be a string if provided
- Service unavailable — upstream LLM or reasoning engine not reachable, returns error with ok:false

## How this service works

Decision procedure for when a one-off x402 mandate should become a standing delegation, with bounds for merchant allowlist, per-period spend caps, expiry, revocation triggers, and refusal criteria.

## Output

A structured decision procedure brief (prose and/or structured fields) covering: the criteria for when a one-off x402 mandate should become a standing delegation, bounds for the merchant allowlist, per-period spend cap rules, delegation expiry conditions, revocation triggers, and refusal criteria. Includes metadata like generation timestamp, model used, and generation source (llm, reasoning, or deterministic).

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/standing-spend-delegation-boundary-standard-74157a50/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)