Download 2023-05 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 for the 2023-05 period. It is part of a broader platform offering data & analytics, AI/ML inference, finance/Web3, and infrastructure utility APIs, all gated behind x402 micropayments on the Base network using USDC.
The specific endpoint `/api/v1/backups/2023-05/download` accepts POST requests and returns an `application/json` response. Payment is settled on-chain via the x402 "exact" scheme on Base, paying to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`). The maximum amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 per request. The payment timeout is 300 seconds.
The platform advertises a flat $0.02/request pricing across all its endpoints, with no API keys, no rate limits, and instant access. Documentation pages beyond the landing page were largely empty (showing only a "Connect wallet" prompt), so details about the backup contents, schema of the returned JSON, or any query parameters are unknown. The endpoint is confirmed live via a valid 402 challenge response.
Capabilities
Use cases
- —Downloading archived backup data from May 2023
- —Programmatic retrieval of historical data snapshots
- —Agent-driven data acquisition with per-request micropayments
Fit
Best for
- —Agents needing on-demand access to archived backup files
- —Developers who want keyless, pay-per-use data downloads
- —Workflows requiring Base-network USDC micropayments for data access
Not for
- —Users needing real-time or streaming data (this is a static backup)
- —Anyone without a Base-network USDC wallet
- —Bulk download scenarios where per-request pricing may add up
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/backups/2023-05/download \
-H "X-PAYMENT: <x402_payment_token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is confirmed live with a valid x402 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no documentation of request/response formats, no examples, and the docs/pricing/API pages are all empty beyond a wallet-connect prompt. The purpose of the backup file and its contents are entirely unknown.
Warnings
- —No documentation available — docs, pricing, and API pages all show only 'Connect wallet' with no content.
- —The contents and schema of the backup download response are completely unknown.
- —No OpenAPI or schema definition is provided for this endpoint.
- —The endpoint path suggests a static historical backup (2023-05); it may not be regularly updated.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/backups/2023-05/download
- —Platform pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/backups/2023-05/download