Download October 2023 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 October 2023 via the x402 payment protocol. The endpoint is live and returns a 402 challenge requiring payment in USDC on the Base network. The price per request is $0.02 (20,000 base units of USDC with 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof to access the resource.
lowpaymentfee.com hosts a broader suite of pay-per-call APIs spanning data analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance/crypto market data, and utility services (geocoding, validation, conversion, generation), all priced at $0.02 per request on the Base network. This specific endpoint (`/api/v1/backups/2023-10/download`) serves backup data and returns `application/json` content. The endpoint accepts POST requests and is discoverable per its outputSchema.
Because the crawled documentation pages (docs, api, pricing, README) all returned only a "Connect wallet" prompt with no further content, the actual structure of the backup data returned is unknown. There is no OpenAPI spec, no request/response schema documentation, and no usage examples available from the provider. Prospective callers should be aware that the nature and contents of the "2023-10 backup" are not described anywhere in the available material.
Capabilities
Use cases
- —Downloading archived backup data from October 2023
- —Programmatic access to backup files without API key management
- —Agent-driven data retrieval with per-request crypto micropayments
Fit
Best for
- —Agents or scripts that need one-off backup data retrieval with crypto payment
- —Users who want keyless, pay-as-you-go access to archived data
- —Developers integrating x402 payment flows on Base
Not for
- —Users who need detailed documentation or schema guarantees before calling
- —Bulk or high-frequency backup retrieval where per-request pricing adds up
- —Anyone without access to USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/backups/2023-10/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), but there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page listing, and the actual content of the backup data is completely undescribed. Docs pages return only 'Connect wallet' with no useful information.
Warnings
- —No OpenAPI or schema documentation available — request and response formats are unknown
- —All documentation pages (/docs, /api, /pricing, /README) returned only 'Connect wallet' with no content
- —The nature and contents of the '2023-10 backup' are not described anywhere in available material
- —No examples of successful responses are available
Citations
- —Endpoint returns 402 with x402 challenge requiring USDC payment on Base networkhttps://lowpaymentfee.com/api/v1/backups/2023-10/download
- —Price is $0.02 per request (maxAmountRequired 20000 base units of USDC, 6 decimals)https://lowpaymentfee.com/api/v1/backups/2023-10/download
- —Asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Basehttps://lowpaymentfee.com
- —No API keys, no rate limits, instant access advertisedhttps://lowpaymentfee.com
- —Documentation pages return only 'Connect wallet' with no further contenthttps://lowpaymentfee.com/docs