x402-gated employee salary endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to employee salary data (specifically employee ID 173) behind an x402 paywall. It is part of a broader platform offering dozens of pay-per-request API endpoints across data analytics, AI/ML, finance, and utility categories, all priced at $0.02 per call settled in USDC on the Base network.
The endpoint accepts POST requests and returns JSON. The x402 challenge confirms it is live, advertising a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. Payment is made via the x402 exact scheme with no API keys or rate limits required — callers simply attach an X-PAYMENT header with a valid payment proof.
Documentation is extremely sparse. The provider's docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available. The specific data returned for the salary endpoint (fields, format, whether it is real or demo data) is unknown. The broader platform lists many endpoint categories but provides no documentation for any of them.
Capabilities
Use cases
- —Retrieving salary information for a specific employee via a micropayment-gated API call
- —Demonstrating x402 payment protocol integration with a simple data endpoint
- —Building agent workflows that purchase data on-demand without API key management
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents needing on-demand data access without pre-registration
- —Micropayment-based API consumption on Base L2
Not for
- —Production payroll systems requiring authenticated, auditable access to sensitive employee data
- —Bulk salary data retrieval across many employees (only employee 173 is exposed at this URL)
- —Users who need detailed API documentation or guaranteed SLAs
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/173/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing, but there is zero documentation on request parameters, response schema, or what data is actually returned. No OpenAPI spec, no examples, and all doc pages are empty. The nature of the data (real vs. demo employee salary) is unknown.
Warnings
- —No API documentation available — all doc pages render only 'Connect wallet' with no content
- —No request or response schema provided; callers cannot know what fields to send or expect
- —The endpoint exposes 'employee salary' data — unclear if this is real PII/sensitive data or demo/synthetic data
- —Only a single employee ID (173) is referenced; unclear if other IDs are supported
- —The broader platform lists many endpoints but none have documentation
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/employees/173/salary
- —The platform prices all endpoints at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/employees/173/salary
- —Documentation, pricing, API, and README pages all show only 'Connect wallet' with no additional contenthttps://lowpaymentfee.com/docs