x402-gated HR document endpoint on Base, pay-per-request with USDC.
What it does
This endpoint at lowpaymentfee.com serves an HR document resource (document ID 4) behind an x402 paywall. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with an exact-payment scheme. The maximum amount required per call is 20,000 base units of USDC, which equals $0.02 (USDC uses 6 decimals).
The provider lowpaymentfee.com hosts a broader suite of pay-per-request APIs spanning data & analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at $0.02 per request with no API keys, no rate limits, and no minimum commitments. However, the specific endpoint being listed here (/api/v1/hr/documents/4) is not explicitly mentioned on the provider's landing page among the advertised API categories, so its exact content and purpose are unclear beyond the generic "Premium API Access" label.
The x402 challenge was successfully captured (HTTP 402 with a well-formed accepts array), confirming the endpoint is live. No OpenAPI schema, detailed documentation, or example responses were found in the crawl. The endpoint's actual response payload after payment is unknown.
Capabilities
Use cases
- —Retrieving HR document data on-demand with micropayment
- —Agent-driven document fetching without API key management
- —Programmatic access to gated document resources via x402 protocol
Fit
Best for
- —Agents needing keyless, pay-per-request document access
- —Developers experimenting with x402 payment protocol on Base
- —Low-friction access to gated content without subscriptions
Not for
- —Bulk document retrieval at scale (no batch endpoint documented)
- —Users who need detailed schema or documentation before integrating
- —Non-crypto users who cannot pay with USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/4 \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The x402 challenge is live and well-formed, confirming the endpoint exists and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no documentation for this specific endpoint, no example request/response, and the endpoint (/api/v1/hr/documents/4) is not listed among the provider's advertised APIs, making its actual content uncertain.
Warnings
- —Endpoint /api/v1/hr/documents/4 is not listed among the provider's advertised API categories — its content and purpose are unclear.
- —No OpenAPI spec, request schema, or response schema available.
- —No example responses found; actual payload after payment is unknown.
- —Provider docs pages (/api, /pricing, /README) returned only a 'Connect wallet' prompt with no useful content.
Citations
- —The x402 challenge returns HTTP 402 with maxAmountRequired 20000 in USDC on Base networkhttps://lowpaymentfee.com/api/v1/hr/documents/4
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/hr/documents/4
- —All listed APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —Provider advertises Data & Analytics, AI & ML, Finance & Web3, and Infrastructure API categorieshttps://lowpaymentfee.com