Pay-per-call employee salary data endpoint on Base via x402, settled in USDC.
What it does
This x402-enabled endpoint at lowpaymentfee.com returns employee salary data for a specific employee (ID 33) via a POST request. Payment is settled on the Base network using USDC (USD Coin) at a cost of $0.02 per request. The endpoint requires no API keys, no rate limits, and provides instant access — callers simply include an X-PAYMENT header with a valid x402 payment proof.
The hosting site lowpaymentfee.com offers a broad catalog of pay-per-call APIs spanning data & analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints share the same $0.02/request pricing model and x402 payment flow on Base.
Documentation is extremely sparse — the docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI schema, no request/response examples, and no description of what fields the salary endpoint actually returns. The endpoint is confirmed live (returns a proper 402 challenge), but the lack of documentation makes it difficult to know the expected request body or response shape without experimentation.
Capabilities
Use cases
- —Retrieving salary information for a specific employee on demand
- —Integrating pay-per-call salary data into HR or payroll workflows
- —Demonstrating x402 payment protocol integration with a simple data endpoint
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents needing on-demand employee data without API key management
- —Low-volume, pay-as-you-go data retrieval
Not for
- —Bulk payroll data exports requiring thousands of records at once
- —Production HR systems needing comprehensive documentation and SLAs
- —Users without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/33/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>"Endpoint
Quality
The endpoint is confirmed live via a valid 402 challenge, and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, and all documentation pages are empty beyond a wallet-connect prompt. The specific purpose of this salary endpoint is undocumented, making it effectively a stub listing.
Warnings
- —No OpenAPI or schema documentation available — request body and response format are unknown
- —All doc/pricing/README pages render only 'Connect wallet' with no technical content
- —The endpoint path references a hardcoded employee ID (33); unclear if other IDs are supported
- —No rate limit or SLA information provided
Citations
- —Endpoint returns a 402 challenge with x402Version 1, accepting USDC on Base networkhttps://lowpaymentfee.com/api/v1/employees/33/salary
- —maxAmountRequired is 20000 base units of USDC (6 decimals) = $0.02 per requesthttps://lowpaymentfee.com/api/v1/employees/33/salary
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/employees/33/salary
- —Site advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —Documentation pages (docs, API, pricing, README) contain only 'Connect wallet' with no further contenthttps://lowpaymentfee.com/docs