# Earn Shop – Pay-per-Download PDF

> Earn Shop – Pay-per-Download PDF is a paid API for AI agents from 46-225-73-168.sslip.io, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-16).

Sells and delivers a specific PDF document for $0.10 USDC on Base, accepting either an x402 payment payload or a direct USDC transfer transaction hash.

## Facts

- Endpoint: POST https://46-225-73-168.sslip.io/buy/bromley27
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/earn-shop-pay-per-download-pdf-fa23362b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bk4ft62oRPRP2UISQvJNw

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 earn-shop-pay-per-download-pdf-fa23362b -d '<json body>'
```

Example prompt: I want to buy and download the bromley27 PDF — go ahead and pay the $0.10 USDC using my x402 payment payload and give me the file.

## When to prefer this

Use this endpoint when you need to programmatically purchase and retrieve a specific gated PDF document (bromley27) using a USDC micropayment on Base via the x402 protocol or a direct transfer. Prefer this over manual browser-based purchases when automating document acquisition in an agent workflow. Not suitable for free documents, non-PDF content, or payment methods other than USDC on Base.

## Known failure modes

- Invalid or malformed x402 payment payload — payment rejected, no file delivered
- Transaction hash not found or insufficient USDC amount — payment not recognized
- Payment already used (replay) — rejected as duplicate
- Network or settlement failure — refund issued by facilitator
- File not found or server error — binary not returned

## How this service works

Pay-per-download PDF documents in USDC on Base via the x402 protocol. Settlement runs through the public x402 facilitator; a direct transfer + tx-hash route is also accepted. Failed delivery is refunded.

## Output

Returns the raw binary content of the purchased PDF document (binary stream). If payment is invalid or delivery fails, a refund is issued and an error is returned.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "tx": {
   "type": "string",
   "description": "Direct-transfer route: tx hash of a USDC transfer to payTo covering the price"
  },
  "xpayment": {
   "type": "string",
   "description": "x402 payment payload (base64 JSON), same as the X-PAYMENT/PAYMENT-SIGNATURE header"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "string",
 "format": "binary"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/earn-shop-pay-per-download-pdf-fa23362b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 46-225-73-168.sslip.io](https://www.zero.xyz/host/46-225-73-168.sslip.io/llms.txt)