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 (in this case, employee 103). It is part of a broader suite of pay-per-request APIs offered by lowpaymentfee.com, all gated behind the x402 payment protocol. Payment is settled in USDC on the Base network.
The x402 challenge confirms the endpoint is live and accepts POST requests. The maximum amount required is 20,000 base units of USDC (which uses 6 decimals), equating to $0.02 per request. No API keys or rate limits are advertised — access is granted purely through on-chain micropayment. The endpoint returns JSON.
The provider's site lists many other endpoints across data/analytics, AI/ML, finance, and utility categories, all at the same $0.02 price point. Documentation pages beyond the landing page appear to require a wallet connection and contain no additional content. There is no OpenAPI schema, no request/response examples, and no detailed documentation available for this specific endpoint. The nature of the data returned (employee SSN) raises significant privacy and regulatory concerns — it is unclear whether this is synthetic/demo data or real PII.
Capabilities
Use cases
- —Retrieving employee SSN for internal HR or payroll integrations
- —Demonstrating x402 micropayment-gated API access patterns
- —Testing pay-per-call data retrieval on Base network
Fit
Best for
- —Developers exploring x402 payment protocol integrations
- —Agents needing on-demand employee data behind micropayment gates
- —Prototyping pay-per-request PII access workflows
Not for
- —Production use involving real PII without verified compliance and legal review
- —Users who need bulk data exports or batch processing
- —Anyone without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/103/ssn \
-H "X-PAYMENT: <x402_payment_token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, no documentation beyond a landing page, and the data category (employee SSN) raises serious regulatory red flags with no explanation of whether data is synthetic or real.
Warnings
- —Endpoint serves employee SSN data — this is highly sensitive PII. No indication whether data is synthetic/demo or real. Use in production may violate privacy regulations (HIPAA, state SSN protection laws, GDPR, etc.).
- —No documentation, OpenAPI schema, or example responses are available — all docs pages require wallet connection and show no content.
- —The provider site lists many diverse API categories (AI, finance, geocoding, etc.) all at the same price with no visible documentation, which may indicate a demo or placeholder service.
- —Cannot verify the legitimacy or accuracy of data returned without making a paid request.
Citations
- —Endpoint returns 402 with x402 challenge requiring USDC payment on Base networkhttps://lowpaymentfee.com/api/v1/employees/103/ssn
- —Price is $0.02 per request, no API keys, no rate limitshttps://lowpaymentfee.com
- —USDC asset contract on Base: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/employees/103/ssn
- —maxAmountRequired is 20000 base units (6 decimals = $0.02)https://lowpaymentfee.com/api/v1/employees/103/ssn