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/98` is part of the lowpaymentfee.com platform, a collection of x402-protocol pay-per-call APIs spanning data analytics, AI/ML, finance, infrastructure, and more. The specific `/ehr/98` path suggests an Electronic Health Record (EHR) resource, though the provider's landing page does not list this particular endpoint among its advertised categories, and no documentation describes its request or response schema.
The endpoint is live and returns a valid x402 challenge (HTTP 402) requesting payment of 20,000 base units of USDC (0x8335…2913) on the Base network, which equals $0.02 per request (USDC uses 6 decimals). Payment is made via the `exact` scheme to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3`. The endpoint accepts POST requests and returns `application/json`. No API key or account registration is needed — access is granted purely through the x402 payment header.
Because the crawled documentation pages (`/docs`, `/api`, `/pricing`, `/README`) all returned only a "Connect wallet" stub with no substantive content, the actual request body format, response schema, and precise data returned by this EHR endpoint are unknown. The platform advertises uniform $0.02 pricing across all endpoints, no rate limits, and instant access via the Base network.
Capabilities
Use cases
- —Retrieving electronic health record data for a specific resource (ID 98)
- —Integrating EHR data into health-tech applications with micropayment access
- —Agent-driven health data retrieval without pre-registration or API keys
Fit
Best for
- —Developers needing on-demand EHR data access without subscription commitments
- —AI agents that can settle x402 USDC payments on Base
- —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 guaranteed SLAs before integration
- —Applications requiring bulk or batch EHR queries at scale
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/ehr/98 \
-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 no documentation, no request/response schema, and the /ehr/98 path is not listed among the provider's advertised APIs. All doc pages return empty stubs. The actual data returned is entirely unknown.
Warnings
- —The /api/v1/ehr/98 path is not listed on the provider's landing page among advertised endpoints — its existence and purpose are unverified beyond the 402 challenge.
- —No request body schema or response schema is documented anywhere; callers must discover behavior empirically.
- —All documentation pages (/docs, /api, /pricing, /README) returned only 'Connect wallet' with no content.
- —EHR data may be subject to healthcare regulations (e.g., HIPAA); the provider gives no compliance information.
- —The provider site appears to be a generic x402 demo/showcase; the actual data quality and reliability behind these endpoints is unknown.
Citations
- —Endpoint returns HTTP 402 with x402 challenge requesting 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/ehr/98
- —Platform advertises $0.02 per request, no API keys, no rate limits, instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/ehr/98
- —Documentation pages /docs, /api, /pricing, /README all return only 'Connect wallet' stubhttps://lowpaymentfee.com/docs