x402-gated employee salary endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to employee salary data (specifically employee ID 32) behind an x402 paywall. It is part of a broader platform offering dozens of pay-per-request APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per call and settled in USDC on the Base network.
The endpoint accepts POST requests and returns JSON. Payment is handled via the x402 protocol: callers receive a 402 challenge containing the payment parameters (asset, network, amount, recipient address), construct an on-chain USDC micro-payment on Base, and attach the payment proof in the X-PAYMENT header. The max amount required is 20,000 base units of USDC (6 decimals), which equals $0.02. No API keys, subscriptions, or rate limits are advertised — access is purely pay-per-request.
Documentation is extremely sparse. The /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no explanation of what the salary endpoint actually returns. The endpoint's purpose (retrieving salary data for a hardcoded employee ID) is unusual and not documented beyond the URL path and the generic "Premium API Access" description. Prospective callers should treat this as a low-documentation, experimental service.
Capabilities
Use cases
- —Retrieving employee salary information for employee ID 32 via a single paid API call
- —Demonstrating x402 protocol integration with USDC micropayments on Base
- —Testing pay-per-request API consumption without API keys or subscriptions
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents that can settle USDC micropayments on Base L2
- —Use cases needing keyless, pay-as-you-go API access
Not for
- —Production HR/payroll systems requiring documented, reliable salary APIs
- —Users who need detailed API documentation or OpenAPI specs
- —Callers without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/32/salary
# Returns 402 with x402 challenge. Attach payment proof:
# curl -X POST https://lowpaymentfee.com/api/v1/employees/32/salary \
# -H "X-PAYMENT: <payment_proof>"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is zero documentation on request format, response schema, or what the endpoint actually returns. No OpenAPI spec, no examples, and the docs pages are empty. The specific resource (employee 32 salary) is unexplained and appears to be a demo or placeholder.
Warnings
- —No API documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content
- —No OpenAPI or request/response schema provided; callers cannot know what to send or what to expect back
- —The endpoint path references a hardcoded employee ID (32) with no explanation of whether other IDs are supported
- —The purpose and data source of the 'salary' endpoint are completely undocumented
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/employees/32/salary
- —All APIs on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/employees/32/salary
- —Documentation pages (/docs, /pricing, /api, /README) render only a 'Connect wallet' prompthttps://lowpaymentfee.com/docs