Pay-per-call employee salary data endpoint on Base via x402 (USDC, $0.02/request).
What it does
This x402-enabled endpoint at lowpaymentfee.com returns employee salary data for a specific employee (ID 139) via a POST request. Payment is settled on the Base network using USDC at a cost of $0.02 per request (20,000 base units with 6 decimals). The endpoint requires no API keys, no rate limits, and no upfront commitments — callers simply attach an X-PAYMENT header with a valid x402 payment proof.
The endpoint is part of a broader lowpaymentfee.com platform that offers dozens of pay-per-call APIs across data analytics, AI/ML inference, finance/Web3, and infrastructure utilities, all priced at $0.02 per request. However, this specific endpoint (`/api/v1/employees/139/salary`) is not listed on the provider's landing page among the advertised API categories, which raises questions about its intended audience and whether it returns real or sample data.
The response MIME type is `application/json`. No OpenAPI schema, request body schema, or response examples are documented. The x402 challenge is live and well-formed, confirming the endpoint is operational. The payment timeout is 300 seconds (5 minutes).
Capabilities
Use cases
- —Retrieving salary information for employee records
- —Integrating payroll data into agent workflows
- —Demonstrating x402 micropayment protocol usage
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents needing on-demand salary data without API key setup
- —Micropayment-based data access on Base network
Not for
- —Bulk payroll data exports (single-employee endpoint only)
- —Users who need documented request/response schemas before integrating
- —Production HR systems requiring authenticated, auditable data sources
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/139/salary \
-H "X-PAYMENT: <x402-payment-proof>" \
-H "Content-Type: application/json"Endpoint
Quality
The x402 challenge is live and well-formed, confirming the endpoint works. However, there is no OpenAPI schema, no request/response documentation, no examples, and this specific endpoint is not listed among the provider's advertised APIs. The docs, pricing, and API pages all render only a 'Connect wallet' prompt with no useful content.
Warnings
- —This specific endpoint (/api/v1/employees/139/salary) is not listed among the provider's advertised APIs on the landing page — its purpose and data source are unclear.
- —No request body schema or response schema is documented anywhere.
- —All documentation pages (docs, api, pricing, README) render only 'Connect wallet' with no actual content.
- —It is unclear whether this endpoint returns real employee data, sample/mock data, or synthetic data.
Citations
- —The endpoint returns HTTP 402 with a valid x402 challenge, confirming it is live.https://lowpaymentfee.com/api/v1/employees/139/salary
- —Payment is 20,000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network, equaling $0.02.https://lowpaymentfee.com/api/v1/employees/139/salary
- —The platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access.https://lowpaymentfee.com
- —The landing page lists APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories but does not include this employee salary endpoint.https://lowpaymentfee.com