Download 2023-12 backup data via x402 micropayment on Base (USDC).
What it does
This endpoint at lowpaymentfee.com provides access to a downloadable backup file for the December 2023 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 settled in USDC on the Base network.
The specific endpoint `/api/v1/backups/2023-12/download` accepts POST requests and returns `application/json` content. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). The platform's landing page confirms a flat $0.02/request pricing model across all endpoints, with no API keys, no rate limits, and no minimum commitments required.
Documentation beyond the landing page is extremely sparse — the /docs, /api, /pricing, and /README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available. The endpoint is live (returns a proper 402 challenge), but what exactly the backup data contains, its format, or its size is not documented anywhere in the crawled material.
Capabilities
Use cases
- —Downloading archived backup data from December 2023
- —Programmatic retrieval of historical data snapshots
- —Agent-driven data acquisition with per-request crypto payment
Fit
Best for
- —Users needing December 2023 backup data from this provider
- —Agents that can settle x402 payments in USDC on Base
- —Low-cost, no-signup data retrieval
Not for
- —Users who need detailed documentation or schema guarantees before calling
- —Bulk or streaming data access (single-file download per request)
- —Users without USDC on Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/backups/2023-12/download \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no documented request/response schema, no examples, and the docs pages are empty. The purpose of the backup data itself is undocumented, making this effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available — request body and response format are unknown.
- —All documentation pages (/docs, /api, /pricing, /README) render only 'Connect wallet' with no content.
- —The nature and contents of the 'backup' data are not described anywhere in the crawled material.
- —Endpoint purpose is vague — 'Premium API Access' is a generic label that does not describe the actual data served.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base network.https://lowpaymentfee.com/api/v1/backups/2023-12/download
- —The platform charges $0.02 per request with no API keys, no rate limits, and instant access on Base network.https://lowpaymentfee.com
- —USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.https://lowpaymentfee.com/api/v1/backups/2023-12/download