Download 2024-08 backup data via x402 micropayment on Base (USDC).
What it does
This endpoint at lowpaymentfee.com provides access to a downloadable backup file for August 2024 via the x402 payment protocol. It is one of many endpoints offered by the lowpaymentfee.com platform, which hosts a variety of pay-per-request APIs spanning data analytics, AI/ML inference, finance, and utility services — all gated behind x402 micropayments settled in USDC on the Base network.
The specific endpoint `/api/v1/backups/2024-08/download` accepts POST requests and returns an `application/json` response. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0.02 USD per request, since USDC uses 6 decimals). Payment is sent to the on-chain address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` using the "exact" payment scheme on Base. No API keys or rate limits are required — access is granted purely through the x402 payment header.
Documentation on the site is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema documentation, and no description of what the backup data actually contains. The endpoint is live (returns a proper 402 challenge), but the lack of documentation makes it difficult to know what payload to send or what data to expect in return.
Capabilities
Use cases
- —Downloading archived backup data for August 2024
- —Programmatic retrieval of backup files with per-request crypto payment
- —Agent-driven data acquisition without API key registration
Fit
Best for
- —Users who need one-off backup file downloads without account signup
- —Agents that can settle x402 payments in USDC on Base
- —Scenarios requiring keyless, permissionless API access
Not for
- —Users who need detailed documentation or schema guarantees before calling
- —Bulk or high-frequency backup retrieval where per-request fees add up
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/backups/2024-08/download \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, but there is no OpenAPI spec, no request/response schema, and no meaningful documentation beyond a landing page listing. The purpose and contents of the 'backup' are entirely undocumented, making this effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available — request body and response format are unknown
- —Docs, API, pricing, and README pages all render only 'Connect wallet' with no technical content
- —The nature and contents of the 'backup' data are completely undescribed
- —This endpoint path suggests a static/dated resource (2024-08); it may become stale or irrelevant
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/backups/2024-08/download
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/backups/2024-08/download
- —Platform advertises $0.02 per request, no API keys, no rate limits, Base networkhttps://lowpaymentfee.com
- —Docs, API, pricing, and README pages show only 'Connect wallet'https://lowpaymentfee.com/docs