Pay-per-call employee salary data endpoint on Base via x402, settled in USDC.
What it does
This x402-enabled endpoint at lowpaymentfee.com returns salary information for a specific employee (ID 117) 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 attach an x402 payment header to authenticate.
The hosting site lowpaymentfee.com offers a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities, all priced at $0.02 per request and all using the x402 protocol on Base. This particular endpoint appears to serve structured JSON containing employee salary data, though the exact response schema is not documented. The x402 challenge confirms the endpoint is live and accepting payments to wallet 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3.
Documentation is extremely sparse — 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 example request/response, and no description of the data model returned. Prospective callers should be aware that the response format is unknown and must be discovered empirically.
Capabilities
Use cases
- —Retrieving salary information for employee #117 in an automated workflow
- —Demonstrating x402 pay-per-call patterns on Base network
- —Integrating employee compensation data into dashboards or analytics pipelines
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents needing on-demand employee salary data without API key management
- —Micropayment-based data access on Base L2
Not for
- —Bulk payroll data exports (single-employee endpoint only)
- —Users who need detailed API documentation or guaranteed SLAs
- —Non-crypto callers who cannot settle USDC on Base
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/117/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), but there is no OpenAPI spec, no documented request/response schema, no examples, and all documentation pages are empty beyond a wallet-connect prompt. The endpoint's actual data content is unverifiable.
Warnings
- —No API documentation available — /docs, /api, /pricing, and /README pages are all empty
- —Response schema is completely undocumented; callers must discover the format empirically
- —The endpoint serves data for a single hardcoded employee ID (117); unclear if other IDs are supported
- —The nature and source of the 'salary' data is unknown — could be demo/mock data
Citations
- —Endpoint returns 402 with x402 challenge advertising USDC payment on Base networkhttps://lowpaymentfee.com/api/v1/employees/117/salary
- —All APIs priced at $0.02 per request 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/117/salary
- —maxAmountRequired is 20000 base units; USDC uses 6 decimals, so 20000 / 10^6 = $0.02https://lowpaymentfee.com/api/v1/employees/117/salary