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 178) 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 hosting provider, lowpaymentfee.com, offers a broad catalog of pay-per-call APIs spanning data & analytics, AI/ML inference, finance/Web3, and infrastructure utilities, all priced uniformly at $0.02 per request. This particular endpoint sits outside those advertised categories and appears to be a demonstration or sample resource exposing employee salary data. No OpenAPI schema, request body specification, or response format documentation was found in the crawl, so the exact input parameters and output structure are unknown.
The endpoint is live and returns a proper x402 challenge (HTTP 402) with version 1 of the protocol. Settlement is to wallet 0x1A2B…85F3 on Base mainnet using the canonical USDC contract (0x8335…2913). The maxAmountRequired of 20000 base units equals $0.02 given USDC's 6 decimals, consistent with the site's advertised flat pricing.
Capabilities
Use cases
- —Retrieving salary information for employee records in an automated HR pipeline
- —Demonstrating x402 micropayment flows with a concrete data endpoint
- —Integrating pay-per-call salary lookups into agent-driven workflows
Fit
Best for
- —Developers experimenting with x402 payment protocol on Base
- —Agents needing on-demand employee salary data without API key management
- —Prototyping micropayment-gated data access patterns
Not for
- —Bulk payroll data exports requiring thousands of records at once
- —Production HR systems needing authenticated, auditable access controls
- —Users without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/178/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is no OpenAPI schema, no documented request body format, no example response, and the endpoint's purpose (employee salary for ID 178) is not described anywhere on the site. Effectively a stub listing with confirmed liveness.
Warnings
- —No OpenAPI or request/response schema available — input parameters and output format are unknown
- —The /api/v1/employees/178/salary path is not listed among the provider's advertised API catalog, suggesting it may be a demo or test endpoint
- —No documentation pages rendered meaningful content (all showed only 'Connect wallet')
- —Sensitive data category: employee salary information may be subject to privacy regulations
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/employees/178/salary
- —The provider advertises $0.02 per request flat pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/employees/178/salary