Download February 2025 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 February 2025 (`/api/v1/backups/2025-02/download`). 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 endpoint accepts POST requests and returns `application/json` responses. Payment is handled via the x402 protocol: callers must include an `X-PAYMENT` header with a valid payment proof. The maximum amount required is 20,000 base units of USDC (6 decimals), which equals $0.02 per request. The payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on the Base L2 network, with a timeout of 300 seconds. No API keys or rate limits are advertised; access is instant upon payment.
Note that the specific content and schema of the backup data returned by this endpoint are not documented in the crawled material. The endpoint title "Premium API Access" is generic and the backup's contents are unknown. The broader site lists many endpoints at $0.02 each, but documentation pages (`/docs`, `/pricing`, `/api`, `/README`) all returned only a "Connect wallet" prompt with no substantive content.
Capabilities
Use cases
- —Downloading a February 2025 backup archive via programmatic API call
- —Automated agents purchasing data exports without API key registration
- —Pay-per-use data retrieval settled on Base L2 with USDC
Fit
Best for
- —Agents needing on-demand backup file access without signup
- —Developers integrating x402 micropayment flows on Base
- —Automated pipelines that need to fetch periodic data snapshots
Not for
- —Users who need detailed documentation or schema guarantees before purchasing
- —Bulk or streaming data access (this is a single-file download endpoint)
- —Users without USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/backups/2025-02/download \
-H "X-PAYMENT: <x402-payment-proof>" \
-H "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 documentation of the request body schema, response schema, or what the backup actually contains. All doc pages return only 'Connect wallet' with no content. The endpoint path suggests a static backup file for a specific month, which is a narrow use case with no further context.
Warnings
- —No documentation available — all doc/pricing/README pages return only 'Connect wallet' with no substantive content.
- —The backup contents and response schema are completely undocumented; buyers cannot know what they are purchasing.
- —Endpoint path is date-specific (/2025-02/); unclear if other months are available or if this is a one-off resource.
- —The generic title 'Premium API Access' does not describe the actual functionality.
Citations
- —The endpoint returns a 402 challenge requiring USDC payment of 20000 base units (=$0.02) on Base networkhttps://lowpaymentfee.com/api/v1/backups/2025-02/download
- —The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/backups/2025-02/download
- —The site advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —Documentation pages (/docs, /pricing, /api, /README) all returned only 'Connect wallet' with no substantive contenthttps://lowpaymentfee.com/docs