Pay-per-call medical records API on Base via x402 — $0.02 per request in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to a medical records resource (`/api/v1/medical/records/2`) via the x402 payment protocol. It is one of many endpoints offered by the lowpaymentfee.com platform, which hosts a broad catalog of pay-per-call APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services. All endpoints on the platform share a uniform $0.02-per-request pricing model, settled in USDC on the Base network with no API keys, rate limits, or commitments required.
The x402 challenge confirms the endpoint is live and accepts POST requests. Payment is made via the x402 "exact" scheme to a specified wallet address, with the max amount required being 20,000 base units of USDC (i.e., $0.02 given USDC's 6 decimals). The response MIME type is `application/json`. However, the specific schema of the medical records response body is not documented — there is no OpenAPI spec, no example payloads, and no detailed documentation available from the crawled pages. The endpoint's title is simply "Premium API Access," which is the generic label used across the platform.
Because this endpoint deals with medical records, consumers should exercise caution regarding data provenance, regulatory compliance (e.g., HIPAA in the US), and the authenticity of the data returned. No information about the data source, coverage, or compliance posture is provided by the site.
Capabilities
Use cases
- —Retrieving medical record data for a specific record ID via a single paid API call
- —Integrating health data into agent workflows that can settle payments on Base
- —Prototyping pay-per-use medical data access without API key provisioning
Fit
Best for
- —Developers experimenting with x402 payment-gated APIs
- —Agents that can autonomously pay for data on the Base network
- —Quick, keyless access to a medical records endpoint
Not for
- —Production healthcare applications requiring HIPAA-compliant, auditable data pipelines
- —Use cases needing bulk or batch medical record retrieval at scale
- —Anyone requiring detailed documentation or guaranteed SLAs
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/medical/records/2 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"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 example request/response, no documentation of what the medical records resource actually returns, and the crawled pages beyond the landing page are empty. The medical/health category raises regulatory concerns that are unaddressed.
Warnings
- —No documentation or schema for the medical records response body — the actual data returned is unknown.
- —Medical/health data category: no information on HIPAA compliance, data provenance, or regulatory posture is provided.
- —The /api, /pricing, and /README pages returned no useful content (just 'Connect wallet').
- —No OpenAPI spec or AI plugin manifest available.
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base network.https://lowpaymentfee.com/api/v1/medical/records/2
- —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 is used for payment on Base.https://lowpaymentfee.com/api/v1/medical/records/2