Pay-per-call employee salary data endpoint on Base via x402 (USDC).
What it does
This x402-enabled endpoint at lowpaymentfee.com returns salary information for a specific employee (ID 74) via a POST request. It is part of a broader suite of pay-per-request APIs offered by the same provider, spanning data analytics, AI/ML inference, finance, and utility categories. The endpoint settles payments on the Base network using USDC (contract 0x8335…2913) through the x402 exact-payment scheme.
The maximum amount required per call is 20,000 base units of USDC. Since USDC uses 6 decimals, this translates to $0.02 per request, consistent with the provider's advertised flat pricing of $0.02/request across all endpoints. No API keys or rate limits are advertised; access is granted immediately upon valid x402 payment. The payment timeout is 300 seconds.
Documentation is extremely sparse. The crawled /docs, /api, /pricing, and /README pages all returned only a "Connect wallet" prompt with no further content. There is no OpenAPI schema, no request/response examples, and no description of what fields the salary response contains or what input the POST body expects. The endpoint is live (returns a proper 402 challenge), but the actual data returned after payment is unknown.
Capabilities
Use cases
- —Retrieving salary information for employee records
- —Integrating employee compensation data into payroll or HR workflows
- —Agent-driven lookups of salary data with automatic USDC micropayments
Fit
Best for
- —Agents needing on-demand employee salary data without API key management
- —Developers experimenting with x402 pay-per-call patterns on Base
- —Low-volume, ad-hoc salary data lookups
Not for
- —Bulk payroll data exports (single-employee endpoint, no batch support evident)
- —Users without USDC on Base network
- —Anyone needing detailed documentation or guaranteed schema stability
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/74/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge with clear pricing, but there is no documentation, no OpenAPI schema, no request/response examples, and the actual data returned is completely unknown. The endpoint path is hardcoded to a single employee ID (74), raising questions about generality.
Warnings
- —No documentation available — /docs, /api, /pricing, and /README all render only a wallet-connect prompt with no content.
- —No OpenAPI or request/response schema provided; input body format and response fields are unknown.
- —Endpoint path is hardcoded to employee ID 74; unclear if other employee IDs are supported or how to discover them.
- —The nature and source of the 'salary' data is unspecified — could be mock/demo data.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/employees/74/salary
- —Provider advertises $0.02/request flat pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/employees/74/salary