# Session-scoped x402 Spend Governance Decision Brief for Browser Agents

> Session-scoped x402 Spend Governance Decision Brief for Browser Agents is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-30).

Returns an LLM-generated decision procedure brief guiding agents through x402 spend governance for browser sessions, covering rail selection, pricing comparison, and session economics.

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/session-scoped-x402-spend-governance-for-browser?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/session-scoped-x402-spend-governance-decision-brief-for-browser-agents-ee0fb36a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L-EUktxU_buLX1tMKAiUN

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 session-scoped-x402-spend-governance-decision-brief-for-browser-agents-ee0fb36a
```

Example prompt: Before I start this pay-per-session browser task, run the x402 spend governance decision procedure — compare per-session vs per-operation pricing, recommend whether to use Base or Solana rail, and check holder-access gating so I know the right approach before the first paid web operation.

## When to prefer this

Choose this endpoint when an AI agent needs a structured, authoritative decision framework before initiating any paid web operation in an x402-gated browser service. It is specifically useful when dual-rail USDC (Base + Solana) is available and the agent must programmatically decide on rail, pricing model, and session strategy. Prefer this over generic cost-comparison logic when you want an LLM-reasoned brief tailored to x402 browser governance, especially in Browser Use x402 or pay-per-session cloud browser contexts.

## Known failure modes

- Payment not included or insufficient USDC — returns 402 Payment Required with payment details
- Invalid method (only GET/HEAD/DELETE accepted) — returns 405
- Service temporarily unavailable — returns 5xx with error detail
- LLM generation failure — generationSource may fall back to deterministic with reduced brief quality
- Topic override not recognized — brief may be generic rather than topic-specific

## How this service works

Paid agent-facing brief on Session-scoped x402 spend governance for browser agents: a decision procedure an agent runs before the first paid web operation in a pay-per-session or pay-per-web-operation browser service (Browser Use x402, pay-per-session cloud browsers with dual-rail USDC on Base + Solana). Decide: per-session vs per-operation pricing comparison, rail selection between Base and Solana for the same session, holder-access gating check, session renewal vs fresh-session economics, and

## Output

A JSON response containing a prose decision-procedure brief (the `brief` field) that walks the calling agent through: per-session vs per-operation pricing comparison, Base vs Solana rail selection, holder-access gating check, and session renewal vs fresh-session economics. Also includes metadata fields: service slug, topic, generation timestamp, generation source (llm/reasoning/deterministic), and model used. Payment confirmation fields (ok, paid, payer, transaction) are also returned.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/session-scoped-x402-spend-governance-decision-brief-for-browser-agents-ee0fb36a/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)