x402-gated employee salary lookup endpoint on Base, paid per-call in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to employee salary data via a POST request to `/api/v1/employees/200/salary`. It is part of a broader platform (lowpaymentfee.com) that offers dozens of x402-payable API endpoints across data analytics, AI/ML, finance, and utility categories, all settled on the Base network using USDC.
The specific endpoint probed here returns an x402 challenge requesting payment of up to 20,000 base units of USDC (0x8335…2913 on Base). Since USDC uses 6 decimals, this translates to $0.02 per request — consistent with the site's advertised flat pricing of $0.02/request across all endpoints. Payment is made via the x402 exact scheme, with a 300-second timeout window. No API keys or rate limits are advertised; access is gated purely by the x402 payment header.
The endpoint is live and returning a well-formed 402 challenge. However, documentation is extremely thin — the docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema, and no explanation of what fields the salary endpoint accepts or returns. The endpoint path suggests it retrieves salary information for an employee identified by ID 200, but the actual request body format and response structure are unknown.
Capabilities
Use cases
- —Retrieving employee salary information on demand with per-call USDC payment
- —Integrating salary data into payroll or HR automation workflows
- —Agent-driven lookups of compensation data without API key provisioning
Fit
Best for
- —Developers needing pay-per-call access to salary data without subscription commitments
- —AI agents that can settle x402 payments on Base
- —Prototyping x402 payment flows with a low-cost endpoint
Not for
- —Production HR systems requiring documented, stable schemas and SLAs
- —Users who cannot transact in USDC on the Base network
- —Bulk data exports or high-volume salary analytics (no documented batch support)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/200/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with clear pricing ($0.02 USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the purpose of the employee salary endpoint is only inferable from the URL path. Effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available — request body format and response structure are completely unknown
- —All documentation pages (docs, pricing, API, README) render only 'Connect wallet' with no technical content
- —The endpoint path '/api/v1/employees/200/salary' suggests demo or sample data; unclear if arbitrary employee IDs are supported
- —The broader platform advertises many endpoints but none have documented schemas
Citations
- —The endpoint returns a 402 challenge requesting up to 20,000 base units of USDC on Base (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)https://lowpaymentfee.com/api/v1/employees/200/salary
- —The site advertises $0.02/request flat pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —Documentation pages render only a 'Connect wallet' prompt with no further technical contenthttps://lowpaymentfee.com/docs