Pay-per-call HR document endpoint on Base via x402, settled in USDC at $0.02/request.
What it does
This x402-enabled endpoint at `/api/v1/hr/documents/47` is part of the lowpaymentfee.com platform, which offers a broad catalog of pay-per-request APIs spanning data & analytics, AI/ML, finance, infrastructure, and more. Each call is settled on the Base network using USDC with no API keys, no rate limits, and no subscriptions — just a per-request micropayment via the x402 protocol.
The specific endpoint probed (`/api/v1/hr/documents/47`) is listed under "Premium API Access" and costs up to $0.02 per request (maxAmountRequired of 20,000 base units of USDC, which has 6 decimals = $0.02). The endpoint accepts HTTP POST and returns `application/json`. However, the exact schema of the request body and the structure of the response are not documented in any publicly available OpenAPI spec or docs page — the crawled /api, /pricing, and /README pages all resolve to a minimal "Connect wallet" prompt with no further documentation.
Because the endpoint path references "hr/documents/47," it likely returns a specific HR-related document or record, but without response examples or schema definitions this is speculative. The platform advertises uniform $0.02 pricing across all endpoints, instant access, and no rate limits. The x402 challenge was successfully captured (HTTP 402), confirming the endpoint is live and accepting payment challenges on Base mainnet.
Capabilities
Use cases
- —Retrieving HR document data on a per-request payment basis
- —Agent-driven document access without pre-registration or API keys
- —Programmatic micropayment-gated data retrieval on Base
Fit
Best for
- —AI agents needing keyless, pay-as-you-go document access
- —Developers experimenting with x402 micropayment protocols
- —Applications requiring on-chain payment settlement for API calls
Not for
- —Bulk document retrieval at high volume (no documented batch endpoints)
- —Users who need detailed API documentation or response schemas before integrating
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/47 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The x402 challenge is live and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a landing page listing, and the specific purpose of the /hr/documents/47 endpoint is undocumented. This is effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available for this endpoint
- —The /api, /pricing, and /README pages all return only a 'Connect wallet' prompt with no useful docs
- —The exact purpose and response format of /api/v1/hr/documents/47 is unknown — 'Premium API Access' is generic
- —No request body schema is documented; callers must guess or discover the expected input
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/hr/documents/47
- —Platform advertises $0.02/request pricing, no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/hr/documents/47