# Agent Payment Lifecycle Next Phases (A) Streaming — K-2SO Decision Procedure

> Agent Payment Lifecycle Next Phases (A) Streaming — K-2SO 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 an LLM-generated decision procedure brief explaining the next phases of an agent's x402 payment lifecycle, specifically covering streaming LLM usage settlement.

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/agent-payment-lifecycle-next-phases-a-streaming?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/agent-payment-lifecycle-next-phases-a-streaming-k-2so-decision-9d2cc04e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bIAX0R0F_Ih3s5fUoLR6a

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 agent-payment-lifecycle-next-phases-a-streaming-k-2so-decision-9d2cc04e
```

Example prompt: What are the next phases my agent should follow for streaming LLM usage settlement under x402 — can you walk me through the decision procedure step by step?

## When to prefer this

Choose this endpoint when an AI agent needs a structured, LLM-generated decision procedure specifically about x402 streaming payment lifecycle phases — particularly after initiating a streaming call and needing authoritative next-step guidance. Prefer it over generic documentation or static guides when you need a freshly generated, prose-formatted brief suitable for injecting directly into an agent's reasoning context. It is ideal for agents operating on Base with USDC micropayments that need actionable procedural clarity on streaming settlement flows.

## Known failure modes

- HTTP 402 returned if USDC payment has not been settled — agent must pay exact amount and retry with PAYMENT-SIGNATURE header
- Invalid method (only GET/HEAD/DELETE accepted) returns a 4xx error
- Malformed query parameters may result in schema validation errors
- LLM generation failure may return ok:false with an error detail
- Network or provider downtime on k2so.wrong.systems may cause timeouts

## How this service works

Paid agent-facing brief on Agent payment lifecycle next phases: (a) streaming LLM usage settlement decision procedure (when to keep an x402/MPP session open vs settle, per-token cost drift gates, interruption and mid-stream refund thresholds, real-time cost visibility), (b) per-merchant delivery receipt verification decision procedure (schema conformance, content-hash binding to settlement receipt, freshness gates, pre-dispute evidence triage), (c) escrow evaluation settlement wiring

## Output

A JSON object containing a plain-prose decision procedure brief (120+ words) covering the next phases of the x402 agent payment lifecycle for streaming LLM usage settlement, including the topic, service slug, generation source (llm/reasoning/deterministic), model used, and ISO-8601 generation timestamp. Payment metadata (payer address, transaction hash) is also included when applicable.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-payment-lifecycle-next-phases-a-streaming-k-2so-decision-9d2cc04e/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)