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 SSN (Social Security Number) data behind an x402 paywall. The specific resource `/api/v1/employees/5/ssn` is gated by a per-request USDC payment on the Base network. The x402 challenge confirms the endpoint is live and accepts exact-scheme payments of up to 20,000 base units of USDC (0.02 USD) per call.
The provider lowpaymentfee.com hosts a broad catalog 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 settles on-chain via Base using USDC (contract 0x8335…2913). The endpoint accepts POST requests and returns application/json.
Important caveat: this specific endpoint purports to return Social Security Numbers, which are highly sensitive personally identifiable information (PII). There is no documentation explaining the data source, whether the data is synthetic/demo, or what legal basis exists for distributing SSNs. Consumers should exercise extreme caution and verify compliance with applicable privacy and data-protection regulations before using this endpoint.
Capabilities
Use cases
- —Retrieving employee SSN data for payroll or identity verification workflows (if legally authorized)
- —Demonstrating x402 micropayment protocol integration with sensitive data endpoints
- —Testing pay-per-request API patterns on Base network
Fit
Best for
- —Developers exploring x402 protocol mechanics with a live endpoint
- —Scenarios where per-call payment for sensitive data retrieval is preferred over subscription models
- —Agent-based workflows that need on-chain payment gating for data access
Not for
- —Production use involving real SSNs without verified legal compliance and data-source provenance
- —Bulk data export or high-volume lookups (no documented batch support)
- —Users who cannot transact in USDC on Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/5/ssn \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live (402 challenge captured) with clear pricing, but there is no OpenAPI schema, no response examples, no documentation beyond the landing page, and the endpoint deals with highly sensitive PII (SSNs) with zero provenance or compliance information. Docs pages returned only 'Connect wallet' with no substantive content.
Warnings
- —Endpoint claims to return Social Security Numbers — highly regulated PII. No documentation on data source, legality, or whether data is synthetic.
- —No OpenAPI spec, no response schema, and no example responses are available.
- —Documentation pages (/docs, /api, /pricing, /README) returned no meaningful content — only 'Connect wallet'.
- —The broader lowpaymentfee.com catalog lists many diverse endpoints but none have detailed documentation; the site may be a demo or proof-of-concept rather than a production service.
Citations
- —Endpoint returns 402 with x402 challenge accepting USDC on Base, maxAmountRequired 20000 base units ($0.02)https://lowpaymentfee.com/api/v1/employees/5/ssn
- —Site advertises $0.02/request pricing with no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/employees/5/ssn