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 129) via a POST request. Payment is settled on the Base network using USDC (USD Coin) at a cost of $0.02 per request. The endpoint requires no API keys, no rate limits, and provides instant access — callers simply include an X-PAYMENT header with a valid x402 payment proof.
The endpoint is part of a broader platform (lowpaymentfee.com) that offers a variety of pay-per-call APIs across categories including data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities. All endpoints on the platform share the same $0.02/request pricing model and settle on the Base L2 network using USDC.
The specific endpoint `/api/v1/employees/129/salary` appears to be a demonstration or sample data endpoint. No OpenAPI schema, detailed documentation, or example responses were found during crawling — the docs, pricing, and API pages all returned only a "Connect wallet" prompt with no substantive content. The response format is advertised as application/json, but the exact output fields are unknown.
Capabilities
Use cases
- —Retrieving salary information for a specific employee record
- —Demonstrating x402 payment protocol integration
- —Testing pay-per-call API consumption with USDC on Base
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents that need on-demand data retrieval with crypto micropayments
- —Projects requiring keyless, pay-as-you-go API access
Not for
- —Production payroll systems needing bulk employee data
- —Users without USDC on the Base network
- —Applications requiring detailed API documentation or SLAs
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/129/salary \
-H "X-PAYMENT: <x402_payment_proof>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no example responses, and the docs/pricing/API pages are all empty beyond a wallet-connect prompt. The endpoint path suggests sample/demo data (employee 129 salary) with no documentation of the response shape.
Warnings
- —No OpenAPI or output schema available — response format is unknown beyond application/json
- —Documentation pages (/docs, /pricing, /api, /README) returned no substantive content
- —Endpoint appears to serve a single hardcoded employee record (ID 129); unclear if other IDs are supported
- —The nature and source of the salary data is undocumented — may be synthetic/demo data
Citations
- —Endpoint returns 402 with x402 challenge requiring USDC payment on Base networkhttps://lowpaymentfee.com/api/v1/employees/129/salary
- —maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02https://lowpaymentfee.com/api/v1/employees/129/salary
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/employees/129/salary