Retrieve employee SSN data via x402 micropayment on Base network for $0.02 per request.
What it does
This endpoint at lowpaymentfee.com returns employee Social Security Number (SSN) data for a specific employee record (ID 139) behind an x402 paywall. The endpoint accepts POST requests and is settled in USDC on the Base network. The x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (6 decimals), which equals $0.02 per request.
The provider site lowpaymentfee.com hosts a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per request with no API keys, no rate limits, and no commitments required. This particular endpoint is one of many available, but it specifically serves sensitive PII (personally identifiable information) in the form of an SSN.
Documentation is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no additional technical detail. There is no OpenAPI schema, no request/response examples, and no description of what fields the response contains beyond the URL path implying SSN data for employee 139. The endpoint is live and returning a valid x402 challenge.
Capabilities
Use cases
- —Retrieving SSN data for a specific employee record via automated payment
- —Integrating sensitive employee data into payroll or HR workflows
- —Agent-driven PII lookups with micropayment settlement
Fit
Best for
- —Developers needing on-demand SSN retrieval with no subscription
- —Automated agents that can settle x402 payments on Base
- —Low-volume, pay-as-you-go access to employee PII
Not for
- —Bulk employee data exports (single-record endpoint only)
- —Users who cannot transact USDC on Base network
- —Applications requiring comprehensive employee profiles beyond SSN
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/139/ssn \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but documentation is essentially nonexistent — no OpenAPI schema, no request/response examples, and no explanation of what the endpoint actually returns. The endpoint serves highly sensitive PII (SSN) with no visible compliance or authorization framework documented. Score reflects minimal usable information beyond the payment challenge itself.
Warnings
- —This endpoint serves personally identifiable information (SSN). Accessing, storing, or transmitting SSNs may be subject to strict legal and regulatory requirements (e.g., FCRA, state privacy laws, GDPR).
- —No documentation exists beyond the x402 challenge — no request body schema, no response schema, no usage examples.
- —The endpoint path is hardcoded to employee ID 139; it is unclear whether other employee IDs are supported or how the broader API is structured.
- —No visible terms of service, privacy policy, or data handling documentation on the provider site.
- —The legitimacy and data source of the SSN data served by this endpoint cannot be verified from available materials.
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/employees/139/ssn
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/employees/139/ssn
- —All APIs on the site are priced at $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —Docs, API, pricing, and README pages render only a Connect wallet prompt with no technical contenthttps://lowpaymentfee.com/docs