Retrieve employee salary data via x402 micropayment on Base for $0.02 per request.
What it does
This endpoint at lowpaymentfee.com returns salary information for a specific employee (employee ID 3) via a POST request, gated behind an x402 payment challenge. It is part of a broader platform offering dozens of pay-per-call API endpoints across data analytics, AI/ML, finance, and utility categories, all priced at $0.02 per request and settled in USDC on the Base network.
The x402 challenge confirms the endpoint is live and accepts payments using the "exact" scheme. The required payment is 20,000 base units of USDC (contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base), which equals $0.02 given USDC's 6 decimal places. There are no API keys, no rate limits, and no signup required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.
Documentation is extremely sparse. The landing page lists available endpoints and pricing, but the /docs, /pricing, and /README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no example payloads available. The endpoint path suggests it returns salary data for employee 3, but the exact request body format and response structure are unknown. This is effectively a stub listing due to the lack of documentation.
Capabilities
Use cases
- —Retrieving salary information for a specific employee on demand
- —Integrating pay-per-call employee data into payroll or HR workflows
- —Demonstrating x402 micropayment protocol usage on Base
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents needing on-demand employee salary data without API key management
- —Low-volume, pay-as-you-go data retrieval
Not for
- —Bulk payroll data exports or batch processing (no documented batch endpoint)
- —Production HR systems requiring documented schemas and SLAs
- —Users who need detailed API documentation before integrating
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/3/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no request/response schema, no examples, and all documentation pages are empty. The endpoint path is very specific (employee 3 salary) with no explanation of what data is returned or what inputs are accepted.
Warnings
- —No API documentation available — /docs, /pricing, /README all render only 'Connect wallet'
- —No OpenAPI or JSON schema for request or response bodies
- —Endpoint is narrowly scoped to a single employee ID (3); unclear if other employee IDs are supported
- —The purpose and authenticity of the 'employee salary' data is unknown — could be demo/mock data
Citations
- —The endpoint returns HTTP 402 with an x402 challenge requiring 20,000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/employees/3/salary
- —All endpoints on the platform are priced at $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/employees/3/salary