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 47) 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 at $0.02 per request. This particular endpoint sits under what appears to be a sample or demonstration HR/employee data resource. The x402 challenge was successfully captured (HTTP 402 with valid accepts payload), 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 exact structure of the POST body and the response format are unknown. Callers should expect a JSON response (mimeType is application/json) but will need to experiment to determine the precise schema.
Capabilities
Use cases
- —Retrieving salary information for a specific employee on demand
- —Demonstrating x402 micropayment protocol integration
- —Building pay-per-call data access workflows without API key management
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents needing on-demand employee/salary data with no subscription
- —Projects requiring keyless, pay-as-you-go API access on Base
Not for
- —Bulk payroll data retrieval (single-employee endpoint, no batch support evident)
- —Production HR systems requiring documented, stable schemas
- —Users without USDC on Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/47/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"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 the endpoint path (employees/47/salary) appears to be a single hardcoded resource with unknown utility. Effectively a stub listing.
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
- —Endpoint path references a specific employee ID (47); unclear if other IDs are supported or if this is a demo
- —The nature and source of the 'salary' data is unverified — could be synthetic/demo data
Citations
- —Endpoint returns HTTP 402 with x402 challenge on POST, confirming it is livehttps://lowpaymentfee.com/api/v1/employees/47/salary
- —Payment is 20000 base units of USDC (6 decimals) = $0.02 on Base networkhttps://lowpaymentfee.com/api/v1/employees/47/salary
- —Site advertises $0.02/request, no API keys, no rate limits, instant access on Basehttps://lowpaymentfee.com
- —Docs, pricing, API, and README pages show only 'Connect wallet'https://lowpaymentfee.com/docs