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/11` returns JSON data for employee ID 11 when called with a POST request and a valid X-PAYMENT header containing a USDC micropayment on the Base network.
The endpoint is part of a broader platform (lowpaymentfee.com) that offers numerous 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 via the x402 exact-payment scheme: the caller constructs a payment proof for 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) on the Base L2 network, targeting the payTo address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`. No API keys, rate limits, or upfront commitments are required.
Documentation on the site is extremely sparse — the docs, pricing, and API pages all render only a "Connect wallet" prompt with no additional technical detail. The employee data schema, available fields, and the full list of valid employee IDs are not documented. The endpoint is confirmed live (returns a proper 402 challenge), but the actual response payload structure must be inferred from the generic description "Premium API Access" and the mime type `application/json`.
Capabilities
Use cases
- —Retrieving employee records by ID for HR or payroll integrations
- —Agent-driven data lookups that require no authentication beyond payment
- —Demonstrating x402 micropayment protocol integration on Base
Fit
Best for
- —Developers experimenting with x402 pay-per-call patterns
- —Agents needing on-demand employee data without API key management
- —Low-volume, ad-hoc data retrieval at $0.02 per call
Not for
- —High-volume bulk employee data exports (no documented batch endpoint)
- —Use cases requiring detailed API documentation or SLA guarantees
- —Applications needing non-USDC or non-Base payment rails
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/11 \
-H "X-PAYMENT: <x402_payment_proof>" \
-H "Content-Type: application/json"Example
Request
{
"url": "https://lowpaymentfee.com/api/v1/employees/11",
"method": "POST",
"headers": {
"X-PAYMENT": "<x402_payment_proof_for_20000_USDC_base_units>",
"Content-Type": "application/json"
}
}Endpoint
Quality
The endpoint is confirmed live with a valid 402 challenge and clear pricing ($0.02 USDC on Base). However, there is no OpenAPI schema, no response examples, no documentation beyond a wallet-connect prompt, and the actual data returned is unknown. This is effectively a stub listing with verified liveness.
Warnings
- —No API documentation available — docs, pricing, and API pages all show only 'Connect wallet'
- —Response schema for employee data is completely undocumented
- —The full set of valid employee IDs is unknown
- —No examples of successful response payloads are available
Citations
- —The endpoint returns a 402 challenge requesting 20,000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/employees/11
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/employees/11
- —All APIs on the platform are priced at $0.02 per request with no API keys, rate limits, or commitmentshttps://lowpaymentfee.com
- —The platform offers APIs across data & analytics, AI & ML, finance & Web3, and infrastructure categorieshttps://lowpaymentfee.com