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 92) 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. The provider's landing page confirms a flat $0.02/request pricing model across all their API endpoints, with no API keys, no rate limits, and instant access. The endpoint was live and returned a valid 402 challenge when probed.
The provider (lowpaymentfee.com) hosts a broader catalog of x402-gated APIs spanning data analytics, AI/ML inference, finance, and utility services — all at the same $0.02 price point. However, this specific endpoint deals with sensitive personally identifiable information (SSN). No documentation beyond the landing page was available; the docs, API, pricing, and README pages all returned only a "Connect wallet" prompt with no substantive content.
Capabilities
Use cases
- —Retrieving SSN data for a specific employee record via programmatic API call
- —Demonstrating x402 micropayment protocol integration on Base network
- —Agent-driven PII data retrieval with per-request payment
Fit
Best for
- —Developers testing x402 payment flows on Base
- —Agents needing on-demand access to employee PII behind a paywall
- —Micropayment-gated data access without API key management
Not for
- —Bulk employee data retrieval (endpoint is scoped to a single employee ID)
- —Use cases requiring compliance-audited PII handling (no documented compliance certifications)
- —Users who need detailed API documentation or schema definitions
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/employees/92/ssn \
-H "X-PAYMENT: <x402-payment-header>" \
-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 response examples, and no real documentation. The endpoint exposes highly sensitive PII (SSN) with no visible compliance or access-control documentation, which is a significant red flag.
Warnings
- —Endpoint returns Social Security Number data — highly sensitive PII. No compliance certifications (SOC 2, HIPAA, etc.) are documented.
- —No API documentation, response schema, or usage examples are available beyond the landing page.
- —Endpoint is hardcoded to employee ID 92; unclear if other employee IDs are supported or if this is a demo.
- —The docs, pricing, and README pages returned no content (only 'Connect wallet'), suggesting incomplete documentation.
- —Serving SSN data via a low-friction micropayment API with no authentication beyond payment raises serious legal and ethical concerns.
Citations
- —The x402 challenge advertises maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/employees/92/ssn
- —USDC asset address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/employees/92/ssn
- —Flat $0.02/request pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —Provider hosts multiple API categories including Data & Analytics, AI & ML, Finance & Web3, and Infrastructurehttps://lowpaymentfee.com