x402-gated employee salary endpoint on Base, pay-per-request with USDC.
What it does
This endpoint at lowpaymentfee.com provides access to employee salary data (specifically employee ID 187) behind an x402 payment wall. The endpoint accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) via the x402 "exact" scheme. The maximum amount required per request is 20,000 base units of USDC, which equals $0.02 (USDC uses 6 decimals).
The hosting site lowpaymentfee.com advertises a broad catalog of x402-gated APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced at $0.02 per request with no API keys, no rate limits, and instant access. However, the specific endpoint being listed here (/api/v1/employees/187/salary) is not among the APIs advertised on the landing page, and no documentation describes what fields the salary response contains or what POST body (if any) is expected. The crawled docs, pricing, and README pages all returned only a "Connect wallet" prompt with no additional content.
Because there is no OpenAPI schema, no example request/response, and no documentation beyond the x402 challenge itself, the actual data returned by this endpoint is unknown. It appears to be a demonstration or sample endpoint rather than a production data service. Use with caution.
Capabilities
Use cases
- —Retrieving salary information for a specific employee via a pay-per-request model
- —Demonstrating x402 payment protocol integration with USDC on Base
- —Agent-driven data retrieval with crypto micropayments
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents that need to fetch data behind crypto paywalls
- —Testing USDC micropayment flows on Base
Not for
- —Production payroll or HR systems requiring authenticated, documented APIs
- —Bulk employee data retrieval across many records
- —Users who need detailed API documentation or schema guarantees
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/187/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 zero documentation on request/response schema, no OpenAPI spec, and the specific employee salary endpoint is not listed among the site's advertised APIs. Docs pages returned only wallet-connect prompts with no content.
Warnings
- —No documentation available for this specific endpoint — request body and response schema are unknown
- —This endpoint (/api/v1/employees/187/salary) is not listed among the provider's advertised APIs on the landing page
- —All doc/pricing/README pages returned only 'Connect wallet' with no usable content
- —The endpoint appears to expose personal salary data — consider privacy and regulatory implications
Citations
- —The x402 challenge requires maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/employees/187/salary
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/employees/187/salary
- —Site advertises $0.02 per request pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —The employee salary endpoint is not among the APIs listed on the landing pagehttps://lowpaymentfee.com