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 (employee ID 72) behind an x402 paywall. The endpoint accepts POST requests and returns JSON. Payment is settled in USDC on the Base network using the x402 "exact" scheme.
The x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 given USDC's 6 decimals. This is consistent with the provider's site-wide pricing of $0.02 per request. The provider claims no API keys, no rate limits, and instant access — payment is the only authentication mechanism. The payment timeout is 300 seconds.
The provider (lowpaymentfee.com) hosts a broad catalog of x402-gated endpoints spanning data analytics, AI/ML inference, finance, and utility services, all at the same $0.02 price point. Documentation pages beyond the landing page returned only a "Connect wallet" prompt with no further technical detail. There is no OpenAPI spec, no request/response schema documentation, and no information about what fields the SSN response actually contains. The endpoint path suggests it returns personally identifiable information (PII), specifically a Social Security Number, which raises significant regulatory and ethical concerns.
Capabilities
Use cases
- —Retrieving employee SSN for payroll or HR integrations
- —Programmatic access to sensitive employee identifiers
- —Agent-driven identity verification workflows
Fit
Best for
- —Developers needing pay-per-call access to employee PII without API key management
- —x402-compatible agents on Base network
- —Micropayment-gated data retrieval
Not for
- —Production systems requiring documented response schemas and SLAs
- —Use cases where handling SSNs requires strict compliance frameworks (SOC 2, HIPAA) — no compliance documentation is provided
- —Bulk data retrieval or high-volume lookups with no documented rate guarantees
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/72/ssn \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is zero documentation on request parameters, response schema, or data provenance. The docs, pricing, and API pages all return only 'Connect wallet' with no useful content. The endpoint purports to serve SSN data, which is highly sensitive PII, yet provides no compliance or data-handling documentation.
Warnings
- —Endpoint serves Social Security Numbers (PII) — ensure compliance with all applicable regulations (e.g., FCRA, state privacy laws) before use.
- —No request or response schema documentation available; behavior must be inferred entirely from the URL path.
- —All documentation pages beyond the landing page are empty ('Connect wallet' only).
- —No OpenAPI spec or ai-plugin manifest found.
- —Data provenance and legitimacy of the SSN data are completely unknown — this could be synthetic/demo data or raise serious legal issues if real.
- —Hardcoded employee ID 72 in the path — unclear if other employee IDs are supported or how discovery works.
Citations
- —x402 challenge returns maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/employees/72/ssn
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/employees/72/ssn
- —Site-wide pricing is $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —Payment timeout is 300 secondshttps://lowpaymentfee.com/api/v1/employees/72/ssn