x402-gated employee salary data endpoint on Base, paid per-request in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to employee salary data (specifically employee ID 113) via an x402 payment-gated POST request. It is part of a broader platform (lowpaymentfee.com) that hosts dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all settled on the Base network using USDC.
The x402 challenge confirms the endpoint is live and accepts payments via the "exact" scheme on Base mainnet. The maximum amount required is 20,000 base units of USDC (0x8335…), which at 6 decimals equals $0.02 per request. The platform advertises uniform $0.02/request pricing across all its endpoints, with no API keys, no rate limits, and no minimum commitments required.
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 documentation, and no example payloads available. The specific data returned by this salary endpoint (fields, format, whether it's real or sample data) is entirely unknown from the available material. The endpoint's purpose — retrieving salary information for a specific employee — is inferred solely from the URL path structure.
Capabilities
Use cases
- —Retrieving salary data for employee records in a pay-per-call model
- —Demonstrating x402 payment protocol integration with USDC on Base
- —Agent-driven data retrieval without API key provisioning
Fit
Best for
- —Developers experimenting with x402 payment-gated APIs
- —Agents that can settle USDC payments on Base for per-call data access
- —Use cases needing keyless, on-demand API access
Not for
- —Production HR/payroll systems requiring documented schemas and SLAs
- —Bulk employee data retrieval (no batch endpoint documented)
- —Users without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/113/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The x402 challenge is live and pricing is clear ($0.02/request in USDC on Base). However, there is no OpenAPI spec, no request/response schema, no documentation beyond a wallet-connect prompt, and the nature of the data returned is completely unknown. This is effectively a stub listing.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README all show only 'Connect wallet'
- —No OpenAPI or schema definition for request or response payloads
- —The nature of the salary data (real, synthetic, demo) is unknown
- —No robots.txt or agents.txt present
- —Endpoint path suggests employee PII (salary data) — may involve regulated data categories
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/employees/113/salary
- —Platform advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/employees/113/salary