Pay-per-call employee data API on Base via x402, settled in USDC at $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides access to employee data records via the x402 payment protocol. The specific resource `/api/v1/employees/56` returns JSON data for employee ID 56 when called with a POST request and a valid X-PAYMENT header containing a USDC payment on the Base network.
The endpoint is part of a broader platform (lowpaymentfee.com) that offers dozens of pay-per-call APIs spanning data & analytics, AI & machine learning, finance & Web3, and infrastructure utilities — all priced at $0.02 per request. Payment is handled natively via the x402 protocol: no API keys, no rate limits, and no account signup required. The x402 challenge confirms the endpoint accepts USDC (contract 0x8335…2913) on Base with a max amount of 20,000 base units, which equals $0.02 (USDC uses 6 decimals). Payments are sent to address 0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3 with a 300-second timeout.
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 nature of the employee data returned (fields, format, whether it's sample/mock data or a real dataset) is unknown from the available material.
Capabilities
Use cases
- —Retrieving employee records by ID with per-call USDC micropayments
- —Integrating employee data into agent workflows without API key management
- —Testing x402 payment protocol integrations against a live endpoint
Fit
Best for
- —Developers experimenting with x402 payment protocol on Base
- —Agents needing keyless, pay-per-call data access
- —Low-volume lookups where subscription APIs are overkill
Not for
- —Production HR systems requiring documented schemas and SLAs
- —High-volume bulk employee data retrieval (no documented batch support)
- —Users without USDC on Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/56 \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is zero documentation on request parameters, response schema, or what employee data is actually returned. No OpenAPI spec, no examples, and all doc pages are empty. The endpoint path suggests sample/demo data (employee ID 56) but this cannot be confirmed.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content
- —No OpenAPI or schema definition; request body and response format are completely unknown
- —The nature of the employee data (real, synthetic, sample) is undocumented
- —Single hardcoded employee ID (56) in the endpoint path — unclear if other IDs are supported or what the data represents
Citations
- —Endpoint returns 402 with x402 challenge accepting USDC on Base network, maxAmountRequired 20000 base unitshttps://lowpaymentfee.com/api/v1/employees/56
- —Platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/employees/56