Retrieve employee SSN data via x402 micropayment on Base network for $0.02 per request.
What it does
This endpoint at lowpaymentfee.com provides access to employee Social Security Number (SSN) data behind an x402 paywall. The specific resource `/api/v1/employees/12/ssn` returns SSN information for employee ID 12 when a valid x402 payment header is included with the POST request. Payment is settled in USDC on the Base network.
The endpoint is part of a broader platform (lowpaymentfee.com) that offers numerous pay-per-call APIs across data analytics, AI/ML inference, finance, and utility categories — all priced at $0.02 per request. The x402 challenge confirms the endpoint is live and accepts the "exact" payment scheme with a maximum amount of 20,000 base units of USDC (6 decimals), which equals $0.02. Payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base, with a 300-second timeout window.
No API keys or rate limits are advertised. The platform emphasizes instant, keyless access using x402 protocol payments. Documentation pages beyond the landing page returned only a "Connect wallet" prompt with no further technical detail, so the exact request body schema and response format for this specific endpoint are unknown.
Capabilities
Use cases
- —Retrieving employee SSN data for payroll or HR integrations
- —Programmatic identity verification workflows requiring SSN
- —Agent-driven data retrieval with per-call crypto micropayments
Fit
Best for
- —Developers needing on-demand SSN data without subscription commitments
- —Automated agents that can settle x402 payments on Base
- —Low-volume, pay-as-you-go access to sensitive employee records
Not for
- —Bulk SSN lookups requiring high throughput (no documented batch endpoint)
- —Users without USDC on Base network or x402-compatible payment tooling
- —Compliance-sensitive environments that require documented data provenance and audit trails
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/12/ssn \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but there is no OpenAPI schema, no documented request/response format, and all docs pages returned only 'Connect wallet' with no usable content. The endpoint deals with highly sensitive PII (SSNs) with no visible compliance or data-source documentation.
Warnings
- —Endpoint returns Social Security Numbers — highly regulated PII under US law (FCRA, state privacy laws). Verify legal compliance before use.
- —No documentation available beyond the landing page; request body and response schema are completely unknown.
- —No information on data source, accuracy, or freshness of employee SSN records.
- —The platform appears to be a demo or showcase site; legitimacy of returned data is unverified.
- —All documentation pages (/docs, /api, /pricing, /README) returned only a 'Connect wallet' prompt with no technical content.
Citations
- —Endpoint is live and returns a 402 x402 challenge with x402Version 1https://lowpaymentfee.com/api/v1/employees/12/ssn
- —Payment amount is 20,000 base units of USDC (USD Coin, 6 decimals = $0.02) on Base networkhttps://lowpaymentfee.com/api/v1/employees/12/ssn
- —Platform advertises $0.02 per request, no API keys, no rate limits, instant accesshttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/employees/12/ssn