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 118) 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 content. There is no OpenAPI schema, no request/response examples, and no description of what fields the salary endpoint returns or what input it expects beyond the POST method. The endpoint is confirmed live (returns a proper 402 challenge), but the actual data contract is unknown.
Capabilities
Use cases
- —Retrieving salary information for employee records
- —Integrating pay-per-call salary data into HR or payroll workflows
- —Agent-driven lookups of employee compensation without API key management
Fit
Best for
- —Developers wanting zero-signup, pay-per-call access to salary data
- —AI agents that can settle x402 payments on Base in USDC
- —Prototyping x402 payment flows with a low-cost endpoint
Not for
- —Production HR systems requiring documented schemas and SLAs
- —Bulk salary data exports or batch processing
- —Users who cannot transact USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/118/salary \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, but there is zero documentation on request/response schemas, no OpenAPI spec, and all doc pages are empty. The purpose of the specific employee salary endpoint is only inferable from the URL path. Effectively a stub listing.
Warnings
- —No OpenAPI or request/response schema available — data contract is entirely unknown
- —All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content
- —The endpoint targets a hardcoded employee ID (118); it is unclear if other IDs are supported or how to discover them
- —No information on data source, accuracy, or freshness of salary data
Citations
- —Endpoint returns HTTP 402 with x402 challenge advertising USDC on Base network at maxAmountRequired 20000 (=$0.02)https://lowpaymentfee.com/api/v1/employees/118/salary
- —Site advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/employees/118/salary