Pay-per-call HR document endpoint on Base via x402 — $0.02 per request in USDC.
What it does
This x402-enabled endpoint at `/api/v1/hr/documents/7` 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 (USD Coin) at a flat rate of $0.02 per request. No API keys, rate limits, or subscriptions are required — payment is handled inline via the x402 protocol.
The specific resource `/api/v1/hr/documents/7` appears to serve an HR-related document (document ID 7). The endpoint accepts POST requests and returns `application/json`. Beyond the generic "Premium API Access" description provided by the x402 challenge, no further documentation exists for this particular route — the crawled site does not list HR document endpoints among its advertised categories, so the exact payload schema and response structure are unknown.
The platform advertises a uniform $0.02 price across all endpoints. The x402 challenge confirms a `maxAmountRequired` of 20000 base units of USDC (6 decimals), which equals $0.02. Payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base mainnet. The endpoint is live and returning a valid 402 challenge.
Capabilities
Use cases
- —Retrieving HR-related documents programmatically with per-call payment
- —Integrating pay-as-you-go document access into agent workflows
- —Accessing structured HR data without subscription or API key management
Fit
Best for
- —Agents needing on-demand HR document access without credentials
- —Developers exploring x402 pay-per-call patterns on Base
- —Low-volume or sporadic document retrieval where subscriptions are wasteful
Not for
- —High-volume bulk document retrieval (per-call cost adds up)
- —Users who need detailed API documentation or schema guarantees before integrating
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/7 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing, but there is no documentation for the HR documents path, no request/response schema, and the crawled site doesn't even list this endpoint category. Effectively a stub with confirmed liveness.
Warnings
- —No documentation exists for the /api/v1/hr/documents/ path — it is not listed among the provider's advertised API categories
- —Request body schema and response schema are entirely unknown
- —The endpoint serves a single document ID (7); unclear if other IDs exist or what the document contains
- —Crawled /api, /pricing, and /README pages returned only a 'Connect wallet' prompt with no useful content
Citations
- —The endpoint returns a valid x402 402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/hr/documents/7
- —The platform advertises $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/hr/documents/7