Pay-per-call employee salary data endpoint on Base via x402 (USDC).
What it does
This x402-enabled endpoint at lowpaymentfee.com returns employee salary data for a specific employee (ID 198) when called via POST. It is part of a broader platform offering dozens of pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all settled on the Base network using USDC.
The endpoint charges a maximum of $0.02 per request (20,000 base units of USDC with 6 decimals). Payment is handled inline via the x402 protocol: callers receive a 402 challenge containing the payment terms, then attach an X-PAYMENT header with a signed USDC transfer to complete the request. No API keys, subscriptions, or rate limits are advertised — access is entirely pay-as-you-go.
Documentation beyond the landing page is extremely thin. The /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available. The specific data returned by the salary endpoint (fields, format, whether it is real or demo data) is unknown from the available material.
Capabilities
Use cases
- —Retrieving salary information for a specific employee on demand
- —Demonstrating x402 payment-gated API access patterns
- —Integrating pay-per-request data lookups into agent workflows
Fit
Best for
- —Developers experimenting with x402 payment protocols
- —Agents that need on-demand data access without API key management
- —Low-volume, pay-as-you-go data retrieval
Not for
- —Bulk payroll data exports requiring thousands of records
- —Production HR systems needing authenticated, auditable access
- —Users without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/198/salary
# Returns 402 with x402 challenge. Attach X-PAYMENT header with signed USDC payment to complete.Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI spec, no request/response schema, no documentation, and no examples. The purpose of the salary endpoint and the shape of its response are entirely unknown. This is effectively a stub listing.
Warnings
- —No OpenAPI spec or request/response schema available
- —All documentation pages (/docs, /pricing, /api, /README) render only 'Connect wallet' with no content
- —The nature of the salary data (real, synthetic, demo) is unknown
- —The specific employee ID 198 is hardcoded in the endpoint path — unclear if other IDs are supported
Citations
- —Endpoint returns 402 with x402 challenge advertising USDC on Base, maxAmountRequired 20000https://lowpaymentfee.com/api/v1/employees/198/salary
- —Platform advertises $0.02 per request, no API keys, no rate limits, Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/employees/198/salary