x402-gated employee salary endpoint on Base, pay-per-request with USDC.
What it does
This endpoint at lowpaymentfee.com provides access to employee salary data (specifically employee ID 38) behind an x402 paywall. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) via the x402 "exact" scheme.
The price per request is 20,000 base units of USDC. Since USDC uses 6 decimals, this equates to $0.02 per call, consistent with the provider's site-wide pricing of $0.02/request. The provider advertises no API keys, no rate limits, and instant access. The x402 challenge specifies a maximum timeout of 300 seconds.
The endpoint is part of a broader platform (lowpaymentfee.com) that offers numerous x402-gated APIs across data analytics, AI/ML inference, finance, and utility categories. However, this specific endpoint (/api/v1/employees/38/salary) is not listed on the provider's landing page among the advertised APIs, and no documentation exists describing the request body schema or the response format for salary data. The actual content and utility of this endpoint remain unclear — it may be a demo or test endpoint.
Capabilities
Use cases
- —Retrieving salary information for a specific employee via a pay-per-call model
- —Demonstrating x402 payment protocol integration with USDC on Base
- —Programmatic access to payroll data without API key management
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents that need on-demand salary data access without subscription
- —Testing USDC micropayment flows on Base
Not for
- —Bulk payroll data retrieval across many employees (endpoint is scoped to employee 38)
- —Use cases requiring documented request/response schemas
- —Production HR systems needing guaranteed SLAs or support
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/38/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live (returns 402 with a valid x402 challenge), but there is no documentation, no OpenAPI schema, no example request/response, and the endpoint is not listed among the provider's advertised APIs. The actual data returned is unknown, making this effectively a stub listing.
Warnings
- —This specific endpoint (/api/v1/employees/38/salary) is not listed among the provider's advertised APIs on the landing page — it may be a test or demo endpoint.
- —No request body schema or response schema is documented anywhere.
- —The docs, pricing, API, and README pages all returned only 'Connect wallet' with no useful content.
- —The endpoint is hardcoded to employee ID 38; generalizability to other employee IDs is unknown.
Citations
- —The x402 challenge returns maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/employees/38/salary
- —USDC contract address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/employees/38/salary
- —Site-wide pricing is $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —The provider lists APIs across data/analytics, AI/ML, finance/web3, and infrastructure categorieshttps://lowpaymentfee.com