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 given employee ID, gated behind an x402 payment challenge. The specific resource probed is `/api/v1/employees/100/ssn`, which accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of $0.02 per request (20,000 base units at 6 decimals).
The provider lowpaymentfee.com hosts a broad catalog of x402-gated APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services—all priced at $0.02 per call. The platform advertises no API keys, no rate limits, and instant access. However, the employee SSN endpoint is not listed on the provider's public landing page among the advertised API categories, which raises questions about its intended audience and data sourcing.
Documentation is extremely sparse. The /docs, /api, /pricing, and /README pages all returned only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what input the POST body expects or what the response payload looks like beyond the declared `application/json` MIME type. The endpoint is live (returns a valid 402 challenge), but the lack of documentation and the sensitive nature of SSN data warrant significant caution.
Capabilities
Use cases
- —Retrieving employee SSN for payroll or HR integrations
- —Automated identity verification workflows requiring SSN data
- —Agent-driven lookups of employee personally identifiable information
Fit
Best for
- —Developers needing per-call SSN data without API key management
- —Automated agents that can settle x402 payments on Base
- —Low-volume, on-demand employee data retrieval
Not for
- —Bulk employee data exports (no batch endpoint documented)
- —Users who need detailed documentation or response schema guarantees before integrating
- —Any use case where sourcing and legality of SSN data has not been independently verified
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/100/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 spec, no request/response examples, and the docs pages are empty. The endpoint deals with highly sensitive PII (SSN) with no explanation of data sourcing or compliance. It is not listed among the provider's advertised APIs. Score reflects minimal usable information and significant red flags.
Warnings
- —Endpoint serves Social Security Numbers—highly sensitive PII. Verify legal compliance (FCRA, state privacy laws, GDPR if applicable) before use.
- —This specific endpoint (/api/v1/employees/100/ssn) is NOT listed on the provider's public landing page among advertised APIs.
- —No documentation exists: /docs, /api, /pricing, and /README all return only a wallet-connect prompt with no content.
- —No request body schema or response schema is documented; integration requires blind experimentation.
- —Data provenance is completely unknown—there is no indication of where employee SSN data is sourced from.
Citations
- —Endpoint returns a valid x402 402 challenge with USDC on Base network, maxAmountRequired 20000https://lowpaymentfee.com/api/v1/employees/100/ssn
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/employees/100/ssn
- —Provider advertises $0.02 per request, no API keys, no rate limits, instant accesshttps://lowpaymentfee.com
- —Docs, API, pricing, and README pages return only a Connect wallet prompt with no substantive documentationhttps://lowpaymentfee.com/docs