Pay-per-call medical records API on Base, settled in USDC via x402.
What it does
This endpoint at lowpaymentfee.com provides access to a medical records resource (record ID 94) 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).
The endpoint is part of a broader platform (lowpaymentfee.com) that offers a variety 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 minimum commitments. The x402 challenge was successfully captured, confirming the endpoint is live and accepting payment-gated requests.
However, the specific endpoint `/api/v1/medical/records/94` is not listed among the publicly advertised APIs on the provider's landing page. No documentation, request schema, or response schema is available for this particular resource. The "medical records" naming raises questions about the nature of the data returned — it is unclear whether this serves synthetic/demo data or actual protected health information. Consumers should exercise caution and verify the data's nature before relying on it.
Capabilities
Use cases
- —Retrieving medical record data for record ID 94 via a single paid API call
- —Integrating pay-per-call health data access into agent workflows
- —Testing x402 payment flows against a live endpoint
Fit
Best for
- —Developers experimenting with x402 payment protocol on Base
- —Agents needing on-demand access to specific medical record data
- —Projects requiring keyless, pay-as-you-go API access
Not for
- —Production healthcare applications requiring HIPAA-compliant data handling without further verification
- —Bulk retrieval of many medical records (single record endpoint)
- —Users who need detailed API documentation or response schema guarantees
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/medical/records/94 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The x402 challenge confirms the endpoint is live and pricing is clear ($0.02 USDC on Base). However, this specific endpoint is not listed on the provider's public API catalog, there is no documentation, no request/response schema, and the medical records context is unexplained. Effectively a stub listing.
Warnings
- —Endpoint /api/v1/medical/records/94 is not listed among the provider's publicly advertised APIs — its availability and purpose are unverified beyond the x402 challenge.
- —The 'medical records' naming may imply health data; no information is available about data provenance, compliance (e.g., HIPAA), or whether this is synthetic/demo data.
- —No request body schema or response schema is documented; consumers must discover the interface by trial.
- —No OpenAPI spec, README, or detailed docs were retrievable from the provider site.
Citations
- —The endpoint returns a 402 x402 challenge with USDC on Base network, maxAmountRequired 20000 (=$0.02).https://lowpaymentfee.com/api/v1/medical/records/94
- —The platform 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/94