# Agent Browser Payment Context Handoff Across Sandboxed V8 Isolates

> Agent Browser Payment Context Handoff Across Sandboxed V8 Isolates 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 blunt, LLM-generated decision procedure for keeping x402 payment authorization, receipts, and session continuity safe when an agent's browser runs in ephemeral sandboxed V8 isolates (e.g. Cloudflare Kitesurf-style agent-first browsers).

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/agent-browser-payment-context-handoff-across-san
- 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/agent-browser-payment-context-handoff-across-sandboxed-v8-isolates-60efe011
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RNgQHVMyHMha22gCQ6ETI

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-browser-payment-context-handoff-across-sandboxed-v8-isolates-60efe011
```

Example prompt: Give me a blunt decision procedure for how an agent should keep its x402 payment authorization and receipts safe when its browser runs in ephemeral sandboxed V8 isolates — Cloudflare Kitesurf style — so session continuity doesn't break between calls.

## When to prefer this

Choose this endpoint when you need a concise, agent-readable decision procedure specifically for x402 payment context handoff in ephemeral sandboxed V8 browser environments. Prefer it over generic web search or documentation lookup when you need an opinionated, structured guide rather than raw spec reading. Most useful during agent architecture design when wiring up ephemeral browsers with x402-based micropayment flows.

## Known failure modes

- Payment required but no x402 payment provided — returns 402 with payment details
- Invalid or missing 'input' object — returns validation error
- Topic override not recognized — falls back to default topic
- LLM generation failure — generationSource may fall back to deterministic or return error
- Service unavailable on wrong.systems — connection timeout or 5xx error

## How this service works

Paid agent-facing brief on Agent browser payment context handoff across sandboxed V8 isolates: how an agent keeps x402 payment authorization, receipts, and session continuity safe when its browser runs in ephemeral isolated runtimes (Cloudflare Kitesurf style agent-first browsers) · Build a decision procedure or schema for: Agent browser payment context handoff across sandboxed V8 isolates: how an agent keeps x402 payment a. Blunt decision procedure, not marketing.

## Output

A structured JSON response containing a prose decision procedure (the 'brief' field) detailing how an agent should handle x402 payment authorization, receipts, and session continuity across sandboxed V8 isolates, along with metadata including the topic, model used, generation source (llm/reasoning/deterministic), and an ISO-8601 timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "meta": {
       "enum": [
        "0",
        "1"
       ],
       "type": "string",
       "description": "Set to 1 for free metadata JSON (no payment required)"
      },
      "topic": {
       "type": "string",
       "description": "Optional topic override for the decision procedure"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "Agent browser payment context handoff across sandboxed V8 isolates: ho paid response",
     "$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/agent-browser-payment-context-handoff-across-sandboxed-v8-isolates-60efe011/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)