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 84) 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 x402 payment header to each request.
The endpoint is part of a broader platform (lowpaymentfee.com) that offers numerous pay-per-call APIs across categories including data analytics, AI/ML inference, finance/Web3, and infrastructure utilities, all priced at $0.02 per request. However, the specific endpoint being listed here — `/api/v1/medical/records/84` — is not documented on the provider's landing page among the advertised API categories. Its exact input schema and response format are not documented in any crawled material.
The x402 challenge is live and well-formed, confirming the endpoint is operational. The payment timeout is 300 seconds. The payTo address is `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` and the USDC asset contract is `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` on Base mainnet.
Capabilities
Use cases
- —Retrieving medical record data for record ID 84 via a single paid API call
- —Integrating health data access into agent workflows that support x402 payments
- —Programmatic access to medical records without traditional API key provisioning
Fit
Best for
- —Agents or applications needing on-demand medical record retrieval with crypto micropayments
- —Developers experimenting with x402 pay-per-call patterns for health data
- —Workflows requiring keyless, instant API access on Base network
Not for
- —Production healthcare systems requiring HIPAA-compliant, audited data pipelines
- —Bulk retrieval of many medical records (each call costs $0.02 individually)
- —Users who cannot settle payments in USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/medical/records/84 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The x402 challenge is live and pricing is clear ($0.02 USDC on Base), but this specific medical records endpoint is not listed on the provider's own landing page, has no documented input/output schema, no example requests or responses, and the nature of the data returned is entirely unknown. The medical/health category raises regulatory concerns.
Warnings
- —This endpoint (/api/v1/medical/records/84) is not listed among the provider's advertised APIs on the landing page — its legitimacy and data source are unverified.
- —No input or output schema is documented; callers have no way to know what POST body to send or what response to expect.
- —Medical/health data may be subject to HIPAA or other regulatory requirements — no compliance information is provided.
- —The endpoint appears to serve a single hardcoded record ID (84); unclear if other record IDs are available or how they are discovered.
Citations
- —The x402 challenge returns maxAmountRequired of 20000 in USDC (6 decimals) on Base, equaling $0.02 per request.https://lowpaymentfee.com/api/v1/medical/records/84
- —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/84
- —The /api/v1/medical/records/84 endpoint is not listed among the provider's advertised API categories on the landing page.https://lowpaymentfee.com