x402-gated employee salary endpoint on Base, paid per-request in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to employee salary data (specifically employee ID 133) behind an x402 paywall. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) via the x402 "exact" scheme.
The endpoint charges a maximum of 20,000 base units of USDC per request. Since USDC uses 6 decimals, this equals $0.02 per call — consistent with the provider's site-wide flat pricing of $0.02/request. The provider advertises no API keys, no rate limits, and instant access; the only gate is the x402 payment header.
The broader lowpaymentfee.com platform lists many other x402-gated endpoints spanning data analytics, AI/ML inference, finance/crypto feeds, and utility services, all at the same $0.02 price point. However, this specific endpoint (/api/v1/employees/133/salary) is not listed on the provider's landing page among the advertised APIs. Its purpose — returning salary information for a single hardcoded employee ID — is unclear and may be a demo or test resource. No OpenAPI schema, request/response examples, or detailed documentation were found; the docs, pricing, and API pages all returned only a "Connect wallet" prompt with no substantive content.
Capabilities
Use cases
- —Retrieving salary data for employee 133 via a single paid API call
- —Demonstrating x402 payment protocol integration on Base
- —Testing micropayment-gated API consumption workflows
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Testing USDC micropayment flows on Base network
- —Prototyping pay-per-call data access patterns
Not for
- —Production payroll or HR data needs — endpoint appears to be a demo/test resource
- —Bulk employee data retrieval — only a single hardcoded employee ID is exposed
- —Users without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/133/salary \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI schema, no request/response examples, and the endpoint is not listed among the provider's advertised APIs. It appears to be a test or demo resource with a hardcoded employee ID.
Warnings
- —Endpoint /api/v1/employees/133/salary is not listed among the provider's advertised APIs — may be a demo or test resource
- —No documentation, OpenAPI spec, or response schema available
- —Docs, pricing, and API pages returned only 'Connect wallet' with no substantive content
- —Purpose and data source of 'employee salary' data is entirely unclear
Citations
- —The x402 challenge returns maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/employees/133/salary
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/employees/133/salary
- —Provider advertises $0.02/request flat pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —The endpoint is not listed among the provider's advertised API categories on the landing pagehttps://lowpaymentfee.com