Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.
What it does
This endpoint at lowpaymentfee.com provides "Premium API Access" via the x402 payment protocol. The site advertises a broad catalog of API categories — data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request, settled in USDC on the Base network. The specific resource `/api/resource/17` does not map to any named endpoint on the site's landing page, so its exact functionality is unclear; it may be a generic or numbered resource within the platform's catalog.
Payment is handled via the x402 exact-payment scheme. The 402 challenge confirms the endpoint is live and accepts USDC (contract 0x8335…2913 on Base) with a maxAmountRequired of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). No API keys or rate limits are advertised. The endpoint accepts HTTP POST and returns application/json.
Documentation is extremely thin. The /docs, /api, /pricing, and /README pages all returned only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what data or functionality `/api/resource/17` actually provides. The landing page lists many endpoints but none matching this specific resource path. Prospective users should be aware that the actual behavior of this endpoint is undocumented.
Capabilities
Use cases
- —Programmatic access to an unspecified premium resource via x402 micropayment
- —Agent-driven API consumption without API keys or subscriptions
- —Testing x402 payment flows on Base network
Fit
Best for
- —Developers experimenting with x402 payment protocol on Base
- —Agents that need keyless, pay-per-call API access
- —Low-cost micropayment API consumption
Not for
- —Users who need documented, well-specified API contracts
- —Production workloads requiring SLAs or guaranteed uptime
- —Anyone needing to know exactly what data the endpoint returns before paying
Quick start
curl -X POST https://lowpaymentfee.com/api/resource/17 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no request/response examples, and the specific resource /api/resource/17 is not described anywhere on the site. Effectively a stub listing.
Warnings
- —The specific endpoint /api/resource/17 does not appear in the site's listed API catalog — its purpose is unknown.
- —All documentation pages (/docs, /api, /pricing, /README) returned only 'Connect wallet' with no content.
- —No OpenAPI schema, request format, or response examples are available.
- —Actual functionality behind this endpoint is completely undocumented.
Citations
- —The site advertises $0.02 per request with no API keys, no rate limits, and instant access on Base network.https://lowpaymentfee.com
- —The x402 challenge confirms USDC on Base with maxAmountRequired of 20000 base units (=$0.02).https://lowpaymentfee.com/api/resource/17
- —The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.https://lowpaymentfee.com/api/resource/17