Pay-per-call employee data API on Base via x402 — $0.02/request in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to employee data (specifically employee ID 42) via the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) at a cost of $0.02 per request (20,000 base units with 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.
The endpoint is part of a broader platform (lowpaymentfee.com) that offers dozens of pay-per-call APIs across categories including data & analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced uniformly at $0.02 per request. The specific `/api/v1/employees/42` route appears to be a sample or demo resource; the landing page does not list it among the advertised API categories, so it may serve as a test/example endpoint.
Documentation is extremely sparse. The docs, pricing, API, and README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what fields the employee resource contains. The x402 challenge confirms the endpoint is live and accepting payment-gated POST requests, but the actual response payload structure is unknown.
Capabilities
Use cases
- —Retrieving employee record data on a per-call payment basis
- —Testing x402 payment protocol integrations with a low-cost endpoint
- —Demonstrating pay-per-use API patterns without API key provisioning
Fit
Best for
- —Developers experimenting with x402 payment flows
- —Agents that need on-demand data access without subscription commitments
- —Low-volume, pay-as-you-go data retrieval
Not for
- —Production employee/HR data needs (no documented schema or SLA)
- —High-volume bulk data export (per-call pricing adds up)
- —Users who need detailed API documentation before integrating
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/42 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>"Endpoint
Quality
The x402 challenge confirms the endpoint is live and pricing is clear ($0.02 USDC on Base), but there is zero documentation on request parameters, response schema, or what the employee resource actually contains. Docs pages are empty. The endpoint is not listed on the provider's own landing page, suggesting it may be a demo/test route.
Warnings
- —No OpenAPI schema or response examples available
- —Documentation pages (docs, pricing, README) render only 'Connect wallet' with no content
- —The /api/v1/employees/42 endpoint is not listed among the provider's advertised APIs — may be a test/demo resource
- —Actual response payload structure is completely unknown
Citations
- —Endpoint returns 402 with x402 challenge requesting 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/employees/42
- —Platform advertises $0.02/request 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/42