Pay-per-call employee salary lookup API on Base via x402 (USDC).
What it does
This endpoint at lowpaymentfee.com provides access to employee salary data via a simple POST request, paid per call using the x402 protocol. The specific resource `/api/v1/employees/13/salary` returns salary information for employee ID 13. Payment is settled in USDC on the Base network.
The x402 challenge indicates a maximum cost of 20,000 base units of USDC (6 decimals), which equals $0.02 per request. This is consistent with the provider's site-wide pricing of $0.02/request across all their API offerings. The provider advertises no API keys, no rate limits, and instant access — payment is handled entirely through the x402 payment header.
The provider (lowpaymentfee.com) hosts a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities, all at the same $0.02 price point. However, this specific endpoint (`/employees/13/salary`) is not listed on the provider's landing page among the advertised APIs, and no documentation, request schema, or response schema is available. The actual data returned (whether it's mock/demo data or a real dataset) is unknown. The endpoint is live and returns a valid 402 challenge, but the lack of documentation and the absence of this route from the provider's own catalog raise questions about its intended use and data content.
Capabilities
Use cases
- —Retrieving salary information for a specific employee by ID
- —Integrating pay-per-call salary data into agent workflows
- —Demonstrating x402 payment protocol usage with a simple data endpoint
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents needing on-demand employee data without API key management
- —Quick one-off salary data lookups
Not for
- —Bulk payroll data exports (single-employee endpoint, no batch support documented)
- —Production HR systems requiring authenticated, auditable data sources
- —Users needing detailed documentation or guaranteed SLAs
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/13/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge with clear pricing. However, there is no documentation, no request/response schema, no examples, and this specific endpoint is not listed on the provider's own landing page. The actual data content and purpose are unknown, making this effectively a stub listing.
Warnings
- —This specific endpoint (/api/v1/employees/13/salary) is not listed among the provider's advertised APIs on the landing page.
- —No request or response schema is available — the data returned is unknown.
- —Documentation pages (/docs, /pricing, /README) returned only a 'Connect wallet' prompt with no useful content.
- —The nature of the employee data (mock, demo, or real) is unverified.
Citations
- —The x402 challenge specifies maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/employees/13/salary
- —The provider advertises $0.02/request pricing across all APIs with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/employees/13/salary