x402-gated EHR endpoint on Base, pay $0.02 per request in USDC — no API keys required.
What it does
This endpoint at `/api/v1/ehr/75` is part of the lowpaymentfee.com platform, which offers a collection of x402-protocol pay-per-request APIs spanning data analytics, AI/ML inference, finance, and infrastructure utilities. The specific `/ehr/75` path suggests an Electronic Health Record (EHR) resource, though the provider's landing page does not explicitly list or document this particular endpoint. The platform's generic description labels it "Premium API Access."
The endpoint is live and returns a valid x402 challenge on POST. It accepts payment via the "exact" scheme on the Base network using USDC (contract `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`). The maximum amount required is 20,000 base units of USDC, which at 6 decimals equals $0.02 per request — consistent with the platform's uniform $0.02/request pricing advertised on the homepage. Payment is sent to `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` with a 300-second timeout.
No OpenAPI schema, request/response examples, or detailed documentation were found for this endpoint. The docs, pricing, and API pages all returned only a "Connect wallet" prompt with no substantive content. Because the endpoint path references EHR data, which falls under healthcare/regulated data, consumers should exercise caution and verify the nature and provenance of any data returned.
Capabilities
Use cases
- —Retrieving electronic health record data for a specific resource (ID 75)
- —Integrating EHR data into agent workflows with per-request micropayments
- —Accessing health data without managing API keys or subscriptions
Fit
Best for
- —Agents needing on-demand EHR data access via x402 micropayments
- —Developers prototyping health data integrations without upfront commitments
- —Workflows requiring keyless, pay-as-you-go API access on Base
Not for
- —Production healthcare applications requiring HIPAA-compliant, audited data pipelines
- —Use cases needing detailed API documentation or schema guarantees
- —Bulk EHR data retrieval at scale (per-request pricing adds up)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/ehr/75 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is no documentation, no request/response schema, and no description of what the EHR endpoint actually returns. The /ehr/75 path is not listed on the provider's homepage, and all doc pages are empty. The regulated nature of EHR data without any compliance information further lowers confidence.
Warnings
- —No documentation or schema available for this endpoint — request and response formats are unknown.
- —The endpoint path suggests Electronic Health Record data, which is a regulated category (HIPAA, etc.). No compliance or data provenance information is provided.
- —This specific endpoint (/api/v1/ehr/75) is not listed among the provider's advertised APIs on the homepage.
- —All documentation pages (docs, pricing, API, README) returned only a 'Connect wallet' prompt with no content.
Citations
- —The endpoint returns a valid x402 challenge with maxAmountRequired of 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/ehr/75
- —The platform advertises uniform $0.02/request pricing with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/ehr/75