# x402 Settlement Pool Float Sizing Decision Procedure

> x402 Settlement Pool Float Sizing Decision Procedure 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 decision procedure for sizing prefunded USDC float in an x402 settlement pool, covering volume estimation, burst ratios, latency, and a capital-efficiency formula.

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/x402-settlement-pool-float-sizing-decision-proce?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/x402-settlement-pool-float-sizing-decision-procedure-e7803ef8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_i8J9CQ6eEKy74U0i4DLGR

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 x402-settlement-pool-float-sizing-decision-procedure-e7803ef8
```

Example prompt: Can you give me the decision procedure for sizing the USDC float in my x402 settlement pool? I need to account for peak burst volume, the challenge window, and refill lead time so I don't drop payments or over-capitalize.

## When to prefer this

Choose this endpoint when an agent or settlement DAO operator needs structured guidance on USDC float sizing specific to x402 protocol mechanics, including challenge windows and block time — not generic treasury management advice. Prefer this over general DeFi liquidity tools when x402 settlement pool semantics (payment queues, challenge callbacks, prefunded float) are the core concern.

## Known failure modes

- Payment required but not provided — returns 402 with payment header
- Invalid query parameter values for meta or topic — may return validation error
- LLM generation failure — generationSource may fall back or result field may be incomplete
- Network timeout if generation takes too long
- Topic override not recognized — procedure may default to standard x402 float sizing

## How this service works

Decision procedure for an agent or settlement DAO to size prefunded USDC float in an x402 settlement pool. Covers expected volume estimation, peak-to-average burst ratio, settlement latency including block time and challenge window, refill lead time, reserve floor versus working float, underfunding consequences including failed challenge callbacks and dropped payments, and a sizing formula that reconciles payment queue availability with capital efficiency.

## Output

Returns a prose decision procedure ('brief') covering: expected volume estimation methodology, peak-to-average burst ratio guidance, settlement latency factors (block time and challenge window), refill lead time considerations, reserve floor vs. working float distinction, underfunding consequences (failed callbacks, dropped payments), and a concrete sizing formula. Response includes generation source (llm/reasoning/deterministic), ISO-8601 timestamp, and service metadata.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "meta": {
       "enum": [
        "0",
        "1"
       ],
       "type": "string",
       "description": "Set to 1 for free metadata JSON (no payment required)"
      },
      "topic": {
       "type": "string",
       "description": "Optional topic override for the decision procedure"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "x402 settlement pool float sizing standard paid response",
     "$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": "x402-settlement-pool-float-sizing-decision-proce",
   "procedure": "same as brief",
   "generatedAt": "2026-01-01T00:00:00.000Z",
   "generationSource": "deterministic"
  },
  "service": "x402-settlement-pool-float-sizing-decision-proce",
  "provider": "K-2SO"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-settlement-pool-float-sizing-decision-procedure-e7803ef8/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)