x402-gated HR document endpoint on Base, pay-per-request with USDC at $0.02/call.
What it does
This endpoint at lowpaymentfee.com provides access to an HR document resource (`/api/v1/hr/documents/1`) behind an x402 paywall. It is part of a broader suite of pay-per-request APIs offered by the same provider, spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities. All endpoints on the platform share a uniform pricing model of $0.02 per request, settled in USDC on the Base network.
The specific endpoint probed returns an x402 challenge with `maxAmountRequired` of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. Payment is made via the `exact` scheme, and the endpoint accepts HTTP POST requests. The response MIME type is `application/json`. No API keys or rate limits are advertised; access is gated purely by the x402 payment header.
The provider's landing page lists 16 endpoints across four categories, all at the same $0.02 price point. However, the specific `/api/v1/hr/documents/1` endpoint is not listed on the homepage, and no documentation, OpenAPI spec, or example responses are available for it. The actual content and schema of the HR document returned are unknown. The endpoint is confirmed live (402 challenge captured successfully).
Capabilities
Use cases
- —Retrieving HR document data programmatically with per-request USDC payment
- —Agent-driven access to gated document resources without API key management
- —Integrating pay-as-you-go document retrieval into automated workflows
Fit
Best for
- —Agents needing keyless, pay-per-request access to document endpoints
- —Developers experimenting with x402 payment protocol on Base
- —Low-volume, on-demand document retrieval without subscription commitments
Not for
- —High-volume bulk document retrieval where per-request fees add up
- —Use cases requiring detailed schema documentation or guaranteed SLAs
- —Users who cannot transact in USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/1 \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is confirmed live with a valid x402 challenge, but there is no documentation, no OpenAPI spec, no example request/response, and the HR document endpoint is not even listed on the provider's own homepage. The actual content returned is entirely unknown.
Warnings
- —The /api/v1/hr/documents/1 endpoint is not listed on the provider's homepage among the 16 advertised APIs — its purpose and content are unclear.
- —No OpenAPI spec, request schema, or response schema is available for this endpoint.
- —No documentation pages returned meaningful content (pricing, README, and /api pages all just show 'Connect wallet').
- —The nature of the 'HR document' is unknown — could be placeholder or demo content.
Citations
- —The x402 challenge returns maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base networkhttps://lowpaymentfee.com/api/v1/hr/documents/1
- —The provider advertises $0.02 per request across all endpoints with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The provider lists 16 endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com