x402-gated EHR data endpoint on Base, pay $0.02 per request in USDC.
What it does
This endpoint at `/api/v1/ehr/10` is part of the lowpaymentfee.com platform, a collection of x402-protocol pay-per-request APIs settled in USDC on the Base network. The specific endpoint appears to serve electronic health record (EHR) data, though the crawled documentation does not describe this particular route in detail — it is not listed among the site's advertised API categories (Data & Analytics, AI & ML, Finance & Web3, Infrastructure). The x402 challenge confirms the endpoint is live and accepts POST requests.
Pricing is $0.02 per request (maxAmountRequired of 20,000 base units of USDC, which has 6 decimals = $0.02), consistent with the platform's uniform pricing across all endpoints. Payment is made via the x402 exact scheme on the Base network to the specified payTo address, with no API keys or rate limits required. The asset address `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` corresponds to USDC on Base.
Documentation is extremely sparse. The docs, API, pricing, and README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI schema, no request/response examples, and no description of what the EHR endpoint returns or what input it expects. The endpoint's purpose (electronic health records) is inferred solely from the URL path segment "ehr", which raises questions about data sourcing, compliance, and whether this is synthetic/demo data.
Capabilities
Use cases
- —Retrieving electronic health record data on a per-request payment basis
- —Integrating EHR data into agent workflows without API key management
- —Accessing health data via crypto micropayments on Base
Fit
Best for
- —Developers needing on-demand EHR data access without subscriptions
- —AI agents that can settle x402 payments autonomously
- —Prototyping health data integrations with low per-call cost
Not for
- —Production healthcare applications requiring HIPAA-compliant, audited data pipelines
- —Users who need detailed API documentation and schema guarantees before integration
- —High-volume consumers who would benefit from bulk pricing or subscriptions
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/ehr/10 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The x402 challenge is live and pricing is clear ($0.02/request in USDC on Base). However, there is no documentation, no OpenAPI schema, no request/response examples, and the EHR endpoint is not even listed on the provider's own landing page. The nature and legitimacy of the data served is entirely unknown.
Warnings
- —The /api/v1/ehr/10 endpoint is not listed among the provider's advertised APIs — its existence and purpose are unverified beyond the URL path.
- —No documentation, schema, or examples are available for this endpoint; input format and response structure are unknown.
- —EHR (electronic health records) data may be subject to HIPAA and other health data regulations — no compliance information is provided.
- —All secondary pages (docs, API, pricing, README) render only 'Connect wallet' with no content, suggesting incomplete or placeholder documentation.
Citations
- —The x402 challenge returns maxAmountRequired of 20000 in USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) on Base networkhttps://lowpaymentfee.com/api/v1/ehr/10
- —Platform advertises $0.02 per request, no API keys, no rate limits, Base networkhttps://lowpaymentfee.com
- —The EHR endpoint is not listed among the site's advertised API categorieshttps://lowpaymentfee.com