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 22) behind an x402 paywall. It is part of a broader platform that offers dozens of pay-per-call API endpoints spanning data analytics, AI/ML inference, finance, crypto, and utility services — all settled on the Base network using USDC.
The specific endpoint `/api/v1/hr/documents/22` accepts POST requests and returns JSON. The x402 challenge advertises a maximum cost of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request (USDC uses 6 decimals). The platform's landing page confirms a flat $0.02/request pricing model across all endpoints, with no API keys, no rate limits, and no minimum commitments required.
Documentation is extremely thin — the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI spec, no request/response schema documentation, and no example payloads available. The endpoint category "HR documents" is not listed on the homepage's catalog, making it unclear what data this specific resource returns. The endpoint is live (returns a valid x402 402 challenge), but without documentation the actual functionality remains opaque.
Capabilities
Use cases
- —Retrieving HR document data via a single micropayment
- —Agent-driven document fetching with on-chain USDC settlement
- —Programmatic access to gated document resources without API key management
Fit
Best for
- —Agents that can settle x402 payments in USDC on Base
- —Use cases needing keyless, pay-per-call document access
- —Low-friction one-off document retrieval
Not for
- —Users needing detailed API documentation or schemas before integrating
- —Bulk document retrieval at scale (no documented batch endpoints)
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/hr/documents/22 \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the HR documents category isn't even listed on the site's own catalog. Functionality is essentially unknown.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content.
- —No OpenAPI or schema definition found for this endpoint.
- —The '/api/v1/hr/documents/22' path is not listed in the site's public API catalog, raising questions about whether it is a production resource.
- —Request body format and response structure are completely undocumented.
Citations
- —The x402 challenge advertises maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/hr/documents/22
- —Platform-wide pricing is $0.02 per request with no API keys, no rate limits, and no minimumshttps://lowpaymentfee.com
- —USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/hr/documents/22