x402-paywalled employee salary endpoint on Base, settling in USDC at $0.02 per request.
What it does
This endpoint at lowpaymentfee.com provides access to employee salary data (specifically employee ID 156) via an x402 payment challenge. 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 and settled in USDC on the Base network.
The endpoint accepts POST requests and returns JSON. When called without payment, it returns a standard x402 challenge 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 to the specified payTo address. No API keys or rate limits are advertised; access is gated purely by micropayment.
Note that the specific endpoint path (`/api/v1/employees/156/salary`) is not listed on the provider's landing page, which showcases analytics, AI, finance, and utility APIs instead. The nature and format of the salary data returned is undocumented — there is no OpenAPI schema, no example responses, and the docs/pricing/README pages all render only a wallet-connect prompt with no additional content. This makes it difficult to assess the actual utility or data quality of this particular endpoint.
Capabilities
Use cases
- —Retrieving salary information for a specific employee via micropayment
- —Demonstrating x402 payment protocol integration with USDC on Base
- —Building payroll or HR data pipelines that pay per request
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents needing on-demand employee salary lookups without API key management
- —Micropayment-gated data access on Base L2
Not for
- —Bulk payroll data exports (single-employee endpoint, no batch support documented)
- —Users who need detailed API documentation or response schemas before integrating
- —Non-crypto users who cannot settle payments in USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/156/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base). However, this specific endpoint is not listed on the provider's own landing page, there is no OpenAPI schema, no example request/response, and all documentation pages render only a wallet-connect prompt with no content. The actual data returned is completely unknown.
Warnings
- —This specific endpoint (/api/v1/employees/156/salary) is not listed among the provider's advertised APIs on the landing page.
- —No documentation exists for this endpoint — response format, required POST body, and data contents are all unknown.
- —All doc/pricing/README pages return only a wallet-connect prompt with no usable content.
- —The endpoint appears to expose employee salary data, which may involve sensitive/regulated PII depending on the data source.
Citations
- —The provider's landing page lists APIs across data, AI, finance, and utility categories all priced at $0.02 per request.https://lowpaymentfee.com
- —The x402 challenge returns maxAmountRequired of 20000 base units of USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base network.https://lowpaymentfee.com/api/v1/employees/156/salary
- —The landing page advertises no API keys, no rate limits, instant access, and Base network settlement.https://lowpaymentfee.com