Pay-per-call medical records endpoint on Base via x402, settling in USDC at $0.02/request.
What it does
This x402-enabled endpoint at `/api/v1/medical/records/47` is part of the lowpaymentfee.com platform, which offers a broad catalog of pay-per-request APIs spanning data analytics, AI/ML inference, finance, and infrastructure utilities. The specific endpoint probed appears to serve medical record data (record ID 47), accepting POST requests and returning JSON. Payment is settled on the Base network using USDC (contract `0x8335…2913`) via the x402 "exact" scheme.
The x402 challenge advertises a `maxAmountRequired` of 20,000 base units. USDC uses 6 decimals, so the per-request cost is $0.02 — consistent with the site-wide flat pricing of $0.02 per request displayed on the landing page. No API keys or rate limits are advertised; access is gated purely by the x402 payment header. The payment timeout is 300 seconds.
No OpenAPI schema, request/response examples, or detailed documentation were found for this specific endpoint. The landing page lists many endpoints but provides no per-endpoint docs beyond a short label. The `/api`, `/pricing`, and `/README` pages all returned only a "Connect wallet" prompt with no additional content. Because this endpoint deals with medical records, consumers should exercise caution regarding data provenance, accuracy, and regulatory compliance (e.g., HIPAA). The actual content and structure of the returned medical record data is unknown from available materials.
Capabilities
Use cases
- —Retrieving medical record data on a per-request payment basis
- —Integrating health data into agent workflows without API key management
- —Programmatic access to structured medical records via crypto micropayments
Fit
Best for
- —Agents or applications needing on-demand medical record lookups
- —Developers wanting keyless, pay-as-you-go access to health data
- —Crypto-native workflows settling on Base L2
Not for
- —Production healthcare applications requiring HIPAA-compliant, audited data pipelines
- —Bulk retrieval of large medical datasets (pay-per-request model may be costly at scale)
- —Users who need detailed API documentation or guaranteed SLAs
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/medical/records/47 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response examples, no documentation for this specific endpoint, and the medical records domain raises regulatory concerns with zero provenance information.
Warnings
- —No API documentation or schema available for this endpoint beyond the x402 challenge
- —Medical/health data category — consumers should verify regulatory compliance (HIPAA, GDPR, etc.) and data provenance
- —The specific record ID (47) is hardcoded in the URL; it is unclear how to discover or query other records
- —Landing page docs pages (/api, /pricing, /README) returned no useful content beyond 'Connect wallet'
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/medical/records/47
- —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/47