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 15) 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 each request.
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 resource path. 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 spec, no request/response schema, and no example payloads available. The exact shape of the POST body and the structure of the salary response are unknown. Callers should expect a JSON response (mimeType is application/json) but will need to experiment to determine the precise format.
Capabilities
Use cases
- —Retrieving salary information for a specific employee on demand
- —Integrating pay-per-call HR data into agent workflows
- —Demonstrating x402 payment protocol with a simple data endpoint
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 requiring thousands of records
- —Production HR systems needing authenticated, auditable access
- —Users who need detailed API documentation before integrating
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/15/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the endpoint path (employees/15/salary) appears to be a single hard-coded resource with unclear utility. Effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available — request body and response format are unknown
- —Docs, pricing, API, and README pages all render only 'Connect wallet' with no usable content
- —The endpoint path is specific to employee ID 15; it is unclear whether other employee IDs are supported
- —The nature and source of the salary data is unverified — this may be demo/sample data
Citations
- —Endpoint returns HTTP 402 with x402 version 1 challenge, confirming it is livehttps://lowpaymentfee.com/api/v1/employees/15/salary
- —Payment is in USDC on Base network with maxAmountRequired of 20000 base units ($0.02)https://lowpaymentfee.com/api/v1/employees/15/salary
- —Site advertises $0.02 per request, no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —Docs, pricing, API, and README pages render only 'Connect wallet'https://lowpaymentfee.com/docs