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 (ID 106) behind an x402 paywall. It accepts POST requests and settles payments in USDC on the Base network. The x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (6 decimals), which equals $0.02 per request.
The provider lowpaymentfee.com hosts a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced at $0.02 per request with no API keys, no rate limits, and no commitments. This particular endpoint is part of what appears to be a demo or sample employee data service. The endpoint is live and returns a proper 402 challenge with x402 version 1.
Documentation is extremely sparse. The crawled docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what fields the response contains beyond the path implying SSN data. The nature of the data (whether synthetic/demo or real PII) is not documented.
Capabilities
Use cases
- —Retrieving employee SSN data programmatically with per-call payment
- —Demonstrating x402 protocol micropayment flows
- —Integrating pay-per-use PII lookups into agent workflows
Fit
Best for
- —Developers exploring x402 protocol integration
- —Agents needing on-demand employee data retrieval with crypto micropayments
- —Testing pay-per-call API patterns on Base network
Not for
- —Production PII handling without verifying data authenticity and compliance
- —Bulk data export or batch SSN 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/106/ssn \
-H "X-PAYMENT: <x402_payment_token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live and returns a valid x402 402 challenge, but there is no OpenAPI schema, no request/response examples, and no meaningful documentation beyond the landing page listing. The nature of the data (real vs. synthetic) is undocumented, which is a significant concern given the PII category.
Warnings
- —Endpoint serves SSN (PII/sensitive) data — verify regulatory compliance (FCRA, GLBA, state privacy laws) before use.
- —No documentation on whether data is real or synthetic/demo.
- —No OpenAPI schema or response examples available.
- —Docs, API, pricing, and README pages all returned only 'Connect wallet' with no substantive content.
- —Single hardcoded employee ID (106) in the path — unclear if other IDs are supported.
Citations
- —The endpoint returns a 402 challenge with x402 version 1, accepting USDC on Base network with maxAmountRequired of 20000 base units.https://lowpaymentfee.com/api/v1/employees/106/ssn
- —The provider advertises $0.02 per request pricing with no API keys, no rate limits, and instant access.https://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.https://lowpaymentfee.com/api/v1/employees/106/ssn