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/32` returns JSON content upon payment. It is part of a broader platform (lowpaymentfee.com) that hosts dozens of pay-per-call API endpoints across categories including data analytics, AI/ML inference, finance, and infrastructure utilities.
The endpoint accepts POST requests and settles payments on the Base network using USDC (contract 0x8335…2913). The x402 challenge advertises a maximum amount of 20,000 base units, which at 6 decimals for USDC equals $0.02 per request — consistent with the site's uniform $0.02/request pricing. No API keys or rate limits are advertised; access is granted purely via the x402 payment header. The payment timeout is 300 seconds.
Important caveat: the endpoint path suggests it returns medical records, which is a regulated data category. No documentation, OpenAPI schema, or example responses are available, so the actual content, data provenance, and compliance posture of this endpoint are unknown. The broader site's crawled pages (pricing, README, /api) all resolve to a minimal "Connect wallet" page with no further documentation.
Capabilities
Use cases
- —Retrieving medical record data on a per-request payment basis
- —Agent-driven access to health records without API key provisioning
- —Programmatic medical data retrieval settled in USDC on Base
Fit
Best for
- —Agents that need on-demand medical record access with crypto micropayments
- —Developers exploring x402 payment protocol integrations
- —Use cases requiring keyless, pay-as-you-go API access
Not for
- —Production healthcare applications requiring HIPAA-compliant, audited data pipelines
- —Users who need detailed API documentation or schema guarantees before integration
- —High-volume batch retrieval where per-request pricing is inefficient
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/medical/records/32 \
-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). However, there is zero documentation on request/response schemas, no OpenAPI spec, no example payloads, and the medical records domain raises regulatory concerns with no compliance information available.
Warnings
- —Medical/health data category — no HIPAA compliance or data provenance information provided
- —No OpenAPI schema, request body schema, or response schema available
- —No documentation beyond the landing page listing; /README, /pricing, /api pages are empty
- —Actual content and data source behind /api/v1/medical/records/32 is completely unknown
- —The record ID '32' is hardcoded in the path — unclear if other IDs are available or how to discover them
Citations
- —The x402 challenge returns maxAmountRequired of 20000 base units in USDC on Base networkhttps://lowpaymentfee.com/api/v1/medical/records/32
- —The site advertises uniform $0.02/request pricing with no API keys, no rate limits, and instant accesshttps://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Basehttps://lowpaymentfee.com/api/v1/medical/records/32