Download 2023-07 backup data via x402 micropayment on Base for $0.02 per request.
What it does
This endpoint at lowpaymentfee.com provides access to a downloadable backup file from July 2023 via the x402 payment protocol. The endpoint is live and returns a 402 challenge requiring payment in USDC on the Base network. The price per request is $0.02 (20,000 base units of USDC with 6 decimals). Payment is made via the x402 "exact" scheme with no API keys, rate limits, or subscriptions required — each call is paid individually.
The endpoint accepts POST requests and returns application/json content. It is part of a broader platform (lowpaymentfee.com) that offers numerous pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities, all priced at $0.02 per request and settled on the Base network using USDC.
However, the specific nature of the "backup" data served by this endpoint is unclear. The endpoint path suggests a dated archive (2023-07), but no documentation describes the schema, contents, or size of the backup payload. The docs, pricing, and API pages on the site all render only a "Connect wallet" prompt with no further detail. Prospective users should be aware that the backup contents are unspecified.
Capabilities
Use cases
- —Downloading archived backup data from July 2023 via a single micropayment
- —Programmatic retrieval of backup files without needing API keys or subscriptions
- —Agent-driven data acquisition using x402 payment protocol on Base
Fit
Best for
- —Agents or scripts that need one-off backup file downloads with no account setup
- —Users who prefer crypto micropayments over traditional API key management
- —Automated workflows that can handle x402 payment challenges natively
Not for
- —Users who need to understand the backup schema before purchasing — contents are undocumented
- —Bulk or streaming data access where per-request pricing would be cost-prohibitive
- —Users without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/backups/2023-07/download \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no request/response schema, and no description of what the backup data actually contains. The site's docs/pricing/API pages are all empty beyond a wallet-connect prompt.
Warnings
- —Backup contents are completely undocumented — no schema, no sample, no description of what '2023-07' backup contains
- —All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no useful information
- —No OpenAPI spec or AI plugin manifest available
- —The endpoint path suggests static/dated archive data that may be stale or of limited utility
Citations
- —Endpoint returns 402 with x402 challenge requiring USDC payment on Base networkhttps://lowpaymentfee.com/api/v1/backups/2023-07/download
- —maxAmountRequired is 20000 base units of USDC (USD Coin, 6 decimals) = $0.02https://lowpaymentfee.com/api/v1/backups/2023-07/download
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —Docs, pricing, API, and README pages render only 'Connect wallet' with no documentation contenthttps://lowpaymentfee.com/docs