x402-gated medical records endpoint on Base, pay-per-request with USDC.
What it does
This endpoint at lowpaymentfee.com serves medical record data behind an x402 paywall. The specific resource `/api/v1/medical/records/67` returns JSON content upon payment of up to $0.02 in USDC on the Base network. The endpoint is live and responds with a valid x402 challenge (HTTP 402) advertising an "exact" payment scheme.
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. Payments settle in USDC (contract 0x8335…2913) on Base L2. The x402 challenge specifies a 300-second payment timeout.
However, the specific nature of the "medical records" data served by this endpoint is entirely unclear. There is no documentation, schema, or example response available for this resource. The provider's landing page does not list any medical-records endpoints among its advertised APIs, which raises questions about what data is actually returned and whether it contains real or synthetic medical information. Users should exercise caution given the sensitive nature of medical data and the complete absence of documentation for this particular route.
Capabilities
Use cases
- —Retrieving medical record data for record ID 67 via a single paid API call
- —Demonstrating x402 payment flows with a JSON-returning endpoint
- —Programmatic access to medical data without API key registration
Fit
Best for
- —Developers experimenting with x402 payment protocol on Base
- —Agents needing keyless, pay-per-call access to structured data
- —Testing x402 client implementations against a live endpoint
Not for
- —Production healthcare applications requiring HIPAA-compliant data handling
- —Users needing documented, well-specified medical data schemas
- —Bulk retrieval of medical records (single-record endpoint with per-call cost)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/medical/records/67 \
-H "X-PAYMENT: <x402_payment_token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live (valid 402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is zero documentation, no request/response schema, no examples, and the medical records endpoint is not listed on the provider's own landing page. The nature and legitimacy of the data served is unknown.
Warnings
- —This endpoint serves 'medical records' data but has no documentation, schema, or examples—contents are entirely unknown.
- —The /api/v1/medical/records/ path is not listed among the provider's advertised APIs on the landing page.
- —Medical data may be subject to regulatory requirements (HIPAA, GDPR) — no compliance information is provided.
- —No OpenAPI spec, no AI plugin manifest, and no robots.txt or agents.txt found.
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units in USDC on Base (=$0.02).https://lowpaymentfee.com/api/v1/medical/records/67
- —The provider advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network.https://lowpaymentfee.com
- —The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.https://lowpaymentfee.com/api/v1/medical/records/67
- —The medical records endpoint is not listed among the provider's advertised API categories (Data & Analytics, AI & ML, Finance & Web3, Infrastructure).https://lowpaymentfee.com