Retrieve employee SSN data via pay-per-request x402 endpoint on Base network using USDC.
What it does
This endpoint at lowpaymentfee.com exposes what appears to be employee Social Security Number (SSN) data behind an x402 paywall. The specific resource `/api/v1/employees/91/ssn` returns sensitive PII (personally identifiable information) for a given employee record (ID 91) upon payment of $0.02 in USDC on the Base network. The endpoint uses the x402 "exact" payment scheme, accepting POST requests and returning application/json responses.
The broader lowpaymentfee.com platform advertises a wide range of pay-per-call APIs spanning data analytics, AI/ML inference, finance, and utility services — all priced at $0.02 per request with no API keys, no rate limits, and no commitments. Payment is settled on-chain via USDC (contract 0x8335…2913) on Base. The x402 challenge was successfully captured, confirming the endpoint is live.
However, significant caution is warranted. This endpoint purports to sell access to Social Security Numbers, which is highly sensitive PII. There is no documentation explaining the data source, authorization model, or legal basis for distributing SSNs. The docs, pricing, and README pages on the site returned only a "Connect wallet" prompt with no substantive content. The legitimacy and legality of this data service cannot be verified from available materials.
Capabilities
Use cases
- —Retrieving employee SSN records programmatically (if legally authorized)
- —Demonstrating x402 pay-per-call protocol integration on Base
- —Testing x402 payment flows against a live endpoint
Fit
Best for
- —Developers testing x402 protocol integrations
- —Agents exploring pay-per-call data APIs on Base
Not for
- —Unauthorized access to personal information
- —Production use without verifying legal compliance and data provenance
- —Anyone needing documented, auditable PII data sources
Quick start
# This endpoint requires an x402 payment header (USDC on Base)
curl -X POST https://lowpaymentfee.com/api/v1/employees/91/ssn \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is zero documentation, no request/response schema, no examples, and the endpoint deals in highly sensitive PII (SSNs) with no explanation of data provenance or legal basis. The site's docs pages are empty. This is effectively a stub with serious regulatory red flags.
Warnings
- —CRITICAL: This endpoint purports to sell Social Security Numbers (SSNs), which are highly regulated PII. No legal basis, data provenance, or authorization model is documented.
- —No API documentation, request schema, or response schema is available — docs pages return only 'Connect wallet'.
- —The legitimacy of the underlying data cannot be verified from available materials.
- —Potential violation of US federal and state privacy laws (e.g., FCRA, state SSN protection statutes) if SSNs are real.
- —No OpenAPI spec, no examples, no error handling documentation.
Citations
- —Endpoint returns 402 with x402 challenge advertising USDC payment on Base network at maxAmountRequired 20000 (=$0.02)https://lowpaymentfee.com/api/v1/employees/91/ssn
- —Platform advertises $0.02/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/91/ssn
- —Docs, pricing, and README pages show only 'Connect wallet' with no substantive contenthttps://lowpaymentfee.com/docs