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 data for a specific employee (ID 107) 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 authenticate.
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 at $0.02 per request. This particular endpoint sits under what appears to be a sample or demo HR/employee data resource. The x402 challenge was successfully captured (HTTP 402 with valid accepts block), confirming the endpoint is live.
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 spec, no request/response schema, and no example payloads available. The actual structure of the salary response and what POST body (if any) is expected are unknown. Use with caution until more documentation surfaces.
Capabilities
Use cases
- —Retrieving salary information for a specific employee on demand
- —Demonstrating x402 payment protocol integration for pay-per-call APIs
- —Building HR or payroll dashboards that pull salary data programmatically
Fit
Best for
- —Developers experimenting with x402 payment-gated APIs
- —Agents that need on-demand employee compensation data
- —Projects exploring micropayment-based API monetization on Base
Not for
- —Production HR systems requiring bulk employee data exports
- —Users who need detailed API documentation and request/response schemas before integrating
- —Anyone without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/107/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and no examples. The endpoint path suggests employee salary data but the actual payload structure is entirely unknown.
Warnings
- —No OpenAPI or schema documentation available — request body and response format are unknown
- —All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no technical content
- —The endpoint path '/employees/107/salary' suggests sample/demo data; unclear if this serves real or synthetic information
- —No robots.txt or agents.txt found
Citations
- —Endpoint returns HTTP 402 with x402 challenge on POST, confirming it is livehttps://lowpaymentfee.com/api/v1/employees/107/salary
- —Payment is 20000 base units of USDC (6 decimals = $0.02) on Base networkhttps://lowpaymentfee.com/api/v1/employees/107/salary
- —Site advertises $0.02/request pricing with no API keys, no rate limits, instant accesshttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/employees/107/salary
- —Docs, pricing, API, and README pages show only 'Connect wallet' with no further contenthttps://lowpaymentfee.com/docs