x402-gated medical records endpoint on Base, paid per-request in USDC.
What it does
This endpoint at lowpaymentfee.com serves medical record data behind an x402 paywall. The specific resource `/api/v1/medical/records/93` returns JSON content upon payment of USDC on the Base network. The endpoint is live and responds with a standard x402 challenge (HTTP 402) requiring an X-PAYMENT header.
The provider lowpaymentfee.com hosts a broad catalog of pay-per-request APIs spanning data analytics, AI/ML inference, finance, and utility services. Most listed endpoints are priced at $0.02 per request. However, this particular medical records endpoint advertises a maxAmountRequired of 20,000 base units of USDC (6 decimals), which equals $0.02 — consistent with the site-wide pricing. Payment is made in USDC (contract 0x8335…2913) on Base to address 0x1A2B…85F3, with a 300-second payment timeout.
No OpenAPI schema, request body documentation, or response examples are available for this endpoint. The crawled pages beyond the landing page returned only a "Connect wallet" prompt with no additional documentation. The endpoint accepts POST requests and is marked as discoverable. Because this endpoint is labeled "medical/records," it may involve sensitive or regulated health data — consumers should exercise caution and verify compliance with applicable regulations before use.
Capabilities
Use cases
- —Retrieving medical record data for record ID 93 via a single paid API call
- —Integrating pay-per-request health data access into agent workflows
- —Demonstrating x402 payment protocol usage with USDC on Base
Fit
Best for
- —Agents needing on-demand access to specific medical record data
- —Developers experimenting with x402 payment-gated APIs
- —Use cases requiring no API key or subscription commitment
Not for
- —Bulk retrieval of large medical record datasets (single-record endpoint)
- —Production healthcare applications requiring HIPAA or regulatory compliance guarantees (no compliance documentation available)
- —Users who need detailed API documentation or response schema before integrating
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/medical/records/93 \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base), but there is no API documentation, no request/response schema, no examples, and the medical records domain raises regulatory concerns with zero compliance information provided.
Warnings
- —No API documentation, request schema, or response schema available for this endpoint.
- —Endpoint serves 'medical records' data — may involve regulated health information (e.g., HIPAA, GDPR). No compliance or data-handling documentation is provided by the operator.
- —The specific record ID (93) is hardcoded in the URL; it is unclear whether other record IDs are available or how to discover them.
- —No OpenAPI spec or ai-plugin manifest found.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/medical/records/93
- —Site-wide pricing is $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/medical/records/93