Pay-per-call medical records endpoint on Base via x402, settled in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to a medical records resource (record ID 97) via the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (USD Coin) at a cost of $0.02 per request (20,000 base units with 6 decimals). No API keys or rate limits are required — callers simply attach an X-PAYMENT header with a valid x402 payment proof.
The endpoint is part of a broader platform (lowpaymentfee.com) that offers dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services, all priced at $0.02 per request. The specific endpoint `/api/v1/medical/records/97` is not listed on the site's public landing page among the advertised API categories, so its exact response schema and data contents are unknown. The x402 challenge confirms it is live and accepting payment negotiations.
Because the endpoint deals with medical records, callers should be aware of potential regulatory considerations (e.g., HIPAA in the US, GDPR in the EU). No documentation, OpenAPI spec, or example responses were found for this specific resource. The nature and provenance of the medical data behind this endpoint is entirely unclear from available materials.
Capabilities
Use cases
- —Retrieving medical record data for record ID 97 via a single paid API call
- —Integrating pay-per-call medical data access into agent workflows
- —Demonstrating x402 payment protocol usage with a real endpoint
Fit
Best for
- —Developers experimenting with x402 payment protocol on Base
- —Agents needing on-demand medical record access without API key provisioning
- —Low-volume, pay-as-you-go data retrieval
Not for
- —Production healthcare applications requiring HIPAA-compliant data pipelines
- —Bulk medical records retrieval or batch processing
- —Users who need detailed documentation or guaranteed SLAs
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/medical/records/97 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_proof>"Endpoint
Quality
The x402 challenge is live and confirms pricing and payment details, but there is no OpenAPI spec, no documentation, no example request/response, and the specific medical records endpoint is not listed on the provider's own landing page. The nature of the data is entirely opaque, and the medical/health category raises regulatory concerns.
Warnings
- —This endpoint serves medical records — regulatory compliance (HIPAA, GDPR) is the caller's responsibility and no compliance claims are made by the provider.
- —The /api/v1/medical/records/97 path is not listed among the provider's publicly advertised APIs; its data contents and schema are unknown.
- —No OpenAPI spec, documentation, or example responses are available for this endpoint.
- —The endpoint appears to serve a single fixed record (ID 97); it is unclear whether other record IDs are available or what the data represents.
Citations
- —The endpoint returns a 402 challenge with x402Version 1, accepting USDC on Base network with maxAmountRequired of 20000 base units.https://lowpaymentfee.com/api/v1/medical/records/97
- —The platform advertises $0.02 per request pricing with no API keys, no rate limits, and instant access on the Base network.https://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base network.https://lowpaymentfee.com/api/v1/medical/records/97