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 at `/api/v1/medical/records/30` via the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with a maximum cost of $0.02 per request (20,000 base units at 6 decimals).
The provider site lowpaymentfee.com hosts a broad catalog 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 commitments. However, the specific `/api/v1/medical/records/30` endpoint is not listed on the provider's public landing page among the advertised API categories. Its exact input schema and response format are undocumented; the only confirmed details come from the x402 402 challenge, which specifies POST method, JSON mime type, and the USDC payment parameters.
Because this endpoint deals with medical records — a regulated data category — users should exercise caution regarding data provenance, HIPAA compliance, and the legitimacy of the data returned. No documentation, sample requests, or sample responses are available beyond the x402 challenge metadata.
Capabilities
Use cases
- —Retrieving medical record data for a specific record ID
- —Integrating health data into agent workflows with per-call payment
- —Programmatic access to medical records without API key management
Fit
Best for
- —Agents needing on-demand medical record lookups with crypto micropayments
- —Developers exploring x402 pay-per-call patterns on Base
- —Scenarios requiring keyless, commitment-free API access
Not for
- —Production healthcare applications requiring HIPAA-compliant, audited data pipelines
- —Users who need detailed API documentation or guaranteed SLAs
- —Bulk medical data retrieval at scale (no documented batch support)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/medical/records/30 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) but there is no documentation, no input/output schema, no example requests or responses, and the specific medical records endpoint is not listed on the provider's own landing page. The regulated nature of medical data combined with zero documentation warrants a low score.
Warnings
- —Medical/health data endpoint — verify regulatory compliance (HIPAA, etc.) before use in any production context.
- —This specific endpoint (/api/v1/medical/records/30) is NOT listed among the provider's publicly advertised APIs; its legitimacy and data source are unclear.
- —No input schema, output schema, or example responses are documented anywhere.
- —No OpenAPI spec, README, or detailed docs available from the provider.
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/30
- —The provider advertises $0.02/request pricing with no API keys, no rate limits, and instant access on Base network.https://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.https://lowpaymentfee.com/api/v1/medical/records/30