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Earn Shop – Pay-per-Download Fact PDF
x402
Earn Shop – Pay-per-Download Fact PDF is a paid API for AI agents from 46-225-73-168.sslip.io, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).
Delivers a pay-gated PDF document (fact sheet) via a micropayment of $0.05 USDC on Base using the x402 protocol or a direct USDC transfer.
Price / call$0.05
Success—
StatusUnknown
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 PDF document as a binary file stream. If payment settlement fails or delivery cannot be completed, the $0.05 USDC payment is refunded to the sender.
Example use cases
Automated fact-sheet purchase for research
“I need that fact PDF from the Earn Shop — go ahead and pay the 5-cent USDC fee using my x402 payment payload and download it for me.”
Direct USDC transfer document retrieval
“I already sent 0.05 USDC on Base to cover the price — here's the transaction hash, use it to retrieve the fact PDF from Earn Shop without going through the x402 facilitator.”
Agent-triggered content unlocking on purchase event
“Whenever a user completes their order, automatically buy the corresponding fact PDF from Earn Shop using the x402 payment flow and attach it to their confirmation email.”
Technical details
Endpoint
POSThttps://46-225-73-168.sslip.io/buy/factWhen to prefer
Choose this endpoint when you need to programmatically purchase and retrieve a specific PDF document gated behind a $0.05 USDC micropayment on Base, and you are already integrated with the x402 payment protocol or have a raw USDC transaction hash. Prefer this over free content APIs when the document is exclusively distributed through this pay-per-download channel.
Side effects
- Invalid or malformed x402 payment payload — payment not accepted, document not delivered
- Transaction hash not found or insufficient USDC amount — direct-transfer route rejected
- Payment settlement failure via x402 facilitator — triggers automatic refund
- Network error on Base L2 — transaction unconfirmed, delivery delayed
- Double-spend or replay of payment payload — rejected by facilitator
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| tx | string | Direct-transfer route: tx hash of a USDC transfer to payTo covering the price |
| xpayment | string | x402 payment payload (base64 JSON), same as the X-PAYMENT/PAYMENT-SIGNATURE header |
Output
Schema · Response
{
"type": "string",
"format": "binary"
}Tags
x402
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