x402-gated EHR data endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at `/api/v1/ehr/50` is part of the lowpaymentfee.com platform, which offers a variety of x402-protocol pay-per-request APIs across data analytics, AI/ML, finance, infrastructure, and — as in this case — what appears to be an Electronic Health Record (EHR) resource. The endpoint is live and returns a standard x402 payment challenge requesting USDC on the Base network.
The x402 challenge specifies a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base), which equals $0.02 per request. Payment is made via the `exact` scheme to the provider's wallet. No API keys or rate limits are advertised; access is granted purely through the x402 payment header. The endpoint accepts POST requests and returns `application/json`.
Important caveat: the specific `/api/v1/ehr/50` path suggests an EHR (Electronic Health Record) resource with ID 50, but no documentation, schema, or sample response is available for this endpoint. The provider's landing page does not list this particular endpoint among its advertised APIs, and the docs/pricing/README pages all render only a "Connect wallet" prompt with no further content. The actual data returned and its clinical or regulatory implications are unknown.
Capabilities
Use cases
- —Retrieving electronic health record data for a specific record ID
- —Integrating EHR data into clinical or research workflows via pay-per-call
- —Agent-driven health data retrieval without API key management
Fit
Best for
- —Developers needing on-demand EHR data access without subscriptions
- —AI agents that can settle x402 payments on Base in USDC
- —Prototyping health data integrations with minimal setup
Not for
- —Production healthcare systems requiring HIPAA-compliant, audited data pipelines
- —Users who need detailed API documentation or response schemas before integrating
- —Anyone without a Base-compatible USDC wallet
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/ehr/50 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is zero documentation on what the /ehr/50 endpoint actually returns — no schema, no sample response, no description beyond the generic 'Premium API Access' label. The docs, pricing, and README pages are all empty (just 'Connect wallet'). The EHR path raises regulatory concerns with no clarity provided.
Warnings
- —No documentation or response schema available for the /ehr/50 endpoint
- —EHR (Electronic Health Record) data may be subject to HIPAA or other health data regulations — no compliance information is provided
- —This specific endpoint is not listed among the provider's advertised APIs on the landing page
- —All doc/pricing/README pages render only 'Connect wallet' with no usable content
- —Unknown whether the returned data is real, synthetic, or placeholder
Citations
- —The endpoint returns a 402 x402 challenge requesting 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/ehr/50
- —The USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/ehr/50
- —The provider advertises $0.02 per request, no API keys, no rate limitshttps://lowpaymentfee.com
- —The /api/v1/ehr/50 endpoint is not listed among the provider's advertised APIshttps://lowpaymentfee.com