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 employee salary data for a specific employee (ID 189) 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 offers instant access — callers simply attach an x402 payment header to each request.
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. This particular endpoint appears to serve structured JSON containing salary information for a given employee record. However, there is no public documentation, OpenAPI schema, or example response available, so the exact shape of the returned data is unknown.
The endpoint is live and returns a valid x402 challenge (HTTP 402) with version 1 of the protocol. The payment is made to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 using the USDC contract on Base (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). The maximum timeout for payment settlement is 300 seconds.
Capabilities
Use cases
- —Retrieving salary information for a specific employee record
- —Integrating employee compensation data into payroll or HR workflows
- —Agent-driven lookups of salary data without pre-registration or API keys
Fit
Best for
- —Developers needing on-demand salary data without subscription commitments
- —AI agents that can settle micropayments via x402 on Base
- —Prototyping pay-per-call data access patterns
Not for
- —Bulk payroll data exports (single-employee endpoint, no batch support evident)
- —Users without a Base-compatible USDC wallet
- —Applications requiring detailed API documentation or guaranteed SLAs
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/189/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is no OpenAPI schema, no documentation, no example request/response, and the endpoint path (employee 189 salary) is oddly specific with no explanation. The crawled docs/pricing/API pages all returned only 'Connect wallet' with no substantive content.
Warnings
- —No OpenAPI or schema documentation available — response format is entirely unknown
- —The endpoint targets a single hardcoded employee ID (189); unclear if other IDs are supported or how to discover them
- —All documentation pages (docs, api, pricing, README) returned no useful content beyond 'Connect wallet'
- —The nature and source of the salary data is unverified; treat returned data with caution
- —Possible PII/sensitive data category — salary information may be subject to privacy regulations
Citations
- —Endpoint returns HTTP 402 with x402 version 1 challenge on Base network using USDChttps://lowpaymentfee.com/api/v1/employees/189/salary
- —Price is $0.02 per request (maxAmountRequired 20000 base units, USDC 6 decimals)https://lowpaymentfee.com
- —Site advertises no API keys, no rate limits, instant access, Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/employees/189/salary