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 38) 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 matches the site-wide pricing of $0.02 per request. The provider advertises no API keys, no rate limits, and instant access — payment is the only authentication mechanism. The payment timeout is 300 seconds.
The broader lowpaymentfee.com platform offers a variety of x402-gated endpoints across data/analytics, AI/ML, finance/Web3, and infrastructure categories. Documentation pages exist but appear to require a wallet connection to view, so detailed request/response schemas are not available from the crawl. The specific nature of the data returned (whether it is synthetic/demo data or real PII) is not documented in the crawl material. Given that the endpoint path references an employee SSN, users should exercise extreme caution regarding PII handling and legal compliance.
Capabilities
Use cases
- —Retrieving employee SSN data behind a per-request paywall
- —Demonstrating x402 micropayment protocol integration
- —Testing pay-per-call API patterns on Base network
Fit
Best for
- —Developers experimenting with x402 payment protocol
- —Agents needing on-demand data retrieval with crypto micropayments
- —Testing micropayment-gated API workflows
Not for
- —Production PII handling without verifying legal compliance and data authenticity
- —Users who need bulk employee data retrieval at scale
- —Anyone without a Base-network USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/38/ssn \
-H "X-PAYMENT: <x402-payment-header>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no documented request/response format, no examples, and the docs pages all require wallet connection. The endpoint exposes what appears to be PII (SSN), raising significant regulatory and ethical concerns that are not addressed in any available documentation.
Warnings
- —Endpoint returns employee SSN data — handling PII may be subject to strict legal regulations (e.g., HIPAA, state privacy laws). Verify data authenticity and compliance before use.
- —No request or response schema is documented; behavior must be inferred entirely from the URL path.
- —Documentation pages require wallet connection and are effectively empty in the crawl.
- —It is unclear whether this endpoint returns real, synthetic, or placeholder data.
- —The endpoint is hardcoded to employee ID 38; it is unknown whether other employee IDs are supported.
Citations
- —x402 challenge returns maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/employees/38/ssn
- —Site-wide pricing is $0.02 per request with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/employees/38/ssn