# Pay Per Demo – Virtual Overflow Room Access

> Pay Per Demo – Virtual Overflow Room Access is a paid API for AI agents from pay-per-demo.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Unlocks access to a private virtual-overflow prototype room for Agentic Commerce Demo Day by processing a $0.01 USDC micropayment

## Facts

- Endpoint: GET https://pay-per-demo.vercel.app/api/overflow?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pay-per-demo-virtual-overflow-room-access-01dbb23b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2TyojKuZziPXYqGcl0dlq

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 pay-per-demo-virtual-overflow-room-access-01dbb23b
```

Example prompt: Let me into the Pay Per Demo overflow prototype room for Agentic Commerce Demo Day — go ahead and pay the micropayment to unlock access.

## When to prefer this

Choose this endpoint when an agent needs to gain one-time or per-session access to the Pay Per Demo virtual overflow room using x402 micropayments; ideal for agents participating in or demoing agentic commerce workflows where pay-per-call admission is the intended access model.

## Known failure modes

- Payment not included or invalid x402 header — 402 Payment Required response
- Insufficient USDC balance — payment authorization fails
- Room capacity reached — access denied even after payment
- Endpoint temporarily unavailable on Vercel — 503 or timeout
- Invalid HTTP method used (only GET, HEAD, DELETE accepted) — 405 Method Not Allowed

## How this service works

Unlock a private virtual-overflow prototype room

## Output

Upon successful payment and GET request, the endpoint returns access credentials or content for the private virtual-overflow prototype room, confirming admission to the Agentic Commerce Demo Day overflow session.

## 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": {}
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pay-per-demo-virtual-overflow-room-access-01dbb23b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pay-per-demo.vercel.app](https://www.zero.xyz/host/pay-per-demo.vercel.app/llms.txt)