Download 2023-06 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 June 2023 via the x402 payment protocol. It is part of a broader platform offering data & analytics, AI/ML inference, finance/Web3, and infrastructure utility APIs — all gated behind per-request x402 micropayments settled in USDC on the Base network.
The specific endpoint `/api/v1/backups/2023-06/download` accepts POST requests and returns application/json content. Payment is required via the X-PAYMENT header using the x402 "exact" scheme. The maximum amount required is 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 USD (USDC uses 6 decimals). The payment timeout is 300 seconds. No API keys or rate limits are advertised — access is purely pay-per-call.
The platform's landing page lists numerous other endpoints across categories like sentiment analysis, text summarization, geocoding, price feeds, and more, all at the same $0.02/request price point. Documentation pages beyond the landing page returned only a "Connect wallet" prompt with no additional technical detail, so the exact schema of the backup payload and what data it contains remain unclear.
Capabilities
Use cases
- —Downloading archived backup data from June 2023 via a single micropayment
- —Programmatic retrieval of backup snapshots without subscription or API key management
- —Agent-driven data acquisition using x402 payment protocol on Base
Fit
Best for
- —Agents or scripts that need one-off backup data retrieval without account setup
- —Developers experimenting with x402 pay-per-call protocols on Base
- —Automated pipelines that need to fetch archived data with minimal friction
Not for
- —Users needing real-time or frequently updated data (this is a static 2023-06 backup)
- —Scenarios requiring detailed documentation or guaranteed SLAs — docs are minimal
- —Bulk downloads where per-request pricing would be cost-inefficient
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/backups/2023-06/download \
-H "X-PAYMENT: <x402_payment_token>" \
-H "Content-Type: application/json"Example
Request
{
"url": "https://lowpaymentfee.com/api/v1/backups/2023-06/download",
"method": "POST",
"headers": {
"X-PAYMENT": "<x402_payment_token>",
"Content-Type": "application/json"
}
}Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no documentation beyond a landing page, no example responses, and the purpose of the backup data is entirely unspecified. The docs, pricing, API, and README pages all returned only 'Connect wallet' with no useful content.
Warnings
- —No documentation available — all doc pages return only 'Connect wallet' with no technical content
- —The exact contents and schema of the backup download response are unknown
- —No OpenAPI or machine-readable schema provided
- —The nature of the 'backup' data (what system, what format, what coverage) is completely unspecified
Citations
- —The endpoint returns a 402 challenge requiring 20000 base units of USDC on Base (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)https://lowpaymentfee.com/api/v1/backups/2023-06/download
- —All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The platform offers endpoints across Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com