Pay-per-call employee salary data endpoint on Base via x402, settled in USDC.
What it does
This x402-enabled endpoint at lowpaymentfee.com returns employee salary information for a specific employee (ID 29) via a POST request. Payment is settled on the Base network using USDC (USD Coin) at a cost of $0.02 per request. The endpoint requires no API keys, no rate limits, and provides instant access — callers simply attach an x402 payment header to authorize each call.
The hosting site lowpaymentfee.com offers a broad catalog of pay-per-call APIs spanning data & analytics, AI/ML inference, finance/Web3, and infrastructure utilities, all priced uniformly at $0.02 per request. This particular endpoint falls under what appears to be a demo or sample HR/employee data resource. The x402 challenge was successfully captured, confirming the endpoint is live and accepting payment challenges with x402 version 1.
Documentation is extremely sparse — the docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI schema, no request/response examples, and no description of what fields the salary response contains. The endpoint's actual data content and input parameters are unknown beyond the URL path pattern.
Capabilities
Use cases
- —Retrieving salary information for a specific employee on demand
- —Integrating pay-per-call HR data into agent workflows
- —Demonstrating x402 micropayment protocol usage
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents needing on-demand employee salary lookups
- —Projects requiring keyless, pay-per-call API access on Base
Not for
- —Bulk payroll data exports (single-employee endpoint, no batch support documented)
- —Production HR systems requiring documented schemas and SLAs
- —Users without USDC on Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/29/salary \
-H "X-PAYMENT: <x402_payment_token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but documentation is essentially nonexistent — no OpenAPI schema, no request/response examples, no description of the data model. The endpoint path suggests employee salary data but nothing confirms what fields are returned or what input is expected in the POST body.
Warnings
- —No OpenAPI or schema documentation available — request and response formats are unknown
- —Docs, pricing, API, and README pages all render only 'Connect wallet' with no technical content
- —The specific endpoint (/employees/29/salary) is not listed on the site's main API catalog, raising questions about whether it is a demo or production resource
- —Response content and data accuracy cannot be verified without making a paid request
Citations
- —The endpoint returns a 402 x402 challenge with USDC on Base network at maxAmountRequired 20000 (=$0.02)https://lowpaymentfee.com/api/v1/employees/29/salary
- —The site advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 is USDC on Basehttps://lowpaymentfee.com