Pay-per-call employee salary data endpoint on Base via x402 (USDC).
What it does
This x402-enabled endpoint at lowpaymentfee.com returns employee salary information for a specific employee (ID 17) via a POST request. It is part of a broader platform offering dozens of pay-per-call API endpoints across data analytics, AI/ML, finance, and utility categories, all settled on the Base network using USDC.
The endpoint charges a maximum of $0.02 per request (20,000 base units of USDC with 6 decimals). Payment is handled inline via the x402 protocol: callers receive a 402 challenge with payment details, submit an X-PAYMENT header with a signed USDC transaction on Base, and receive the JSON response. No API keys, subscriptions, or rate limits are advertised — access is purely pay-per-use.
Documentation is extremely sparse. The crawled /docs, /api, /pricing, and /README pages all returned 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 salary response contains. The endpoint path suggests it returns salary data for employee 17, but the actual payload structure is unknown. The platform appears to be a demonstration or early-stage x402 marketplace rather than a production data service with well-documented APIs.
Capabilities
Use cases
- —Retrieving salary information for a specific employee via a micropayment
- —Testing x402 protocol payment flows on Base with USDC
- —Demonstrating pay-per-call API access without API keys
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents that need on-demand data access without pre-registration
- —Testing micropayment-gated API workflows on Base
Not for
- —Production payroll or HR systems requiring documented, reliable schemas
- —Bulk employee data retrieval across many records
- —Users who need detailed API documentation before integrating
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/17/salary
# Returns 402 with x402 challenge. Include X-PAYMENT header with signed USDC payment on Base to receive salary data.Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, but there is no OpenAPI schema, no request/response examples, and all documentation pages are empty stubs. The endpoint path and description are the only clues to functionality. This is effectively a stub listing.
Warnings
- —No API documentation available — /docs, /api, /pricing, and /README all return only a wallet-connect prompt
- —No OpenAPI or output schema describing the response format
- —The specific endpoint (/employees/17/salary) appears to be a single hardcoded resource; unclear if other employee IDs are supported
- —Platform may be a demo or early-stage project rather than a production service
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/employees/17/salary
- —The platform advertises $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/employees/17/salary