x402-gated EHR endpoint on Base, pay $0.02 per request in USDC — no API keys required.
What it does
This endpoint at lowpaymentfee.com provides premium API access to an Electronic Health Record (EHR) resource at path `/api/v1/ehr/72`. It is part of a broader platform offering dozens of x402-gated endpoints spanning data analytics, AI/ML inference, finance, crypto, and utility services, all priced at $0.02 per request settled in USDC on the Base network.
The endpoint is live and returns a standard x402 payment challenge (HTTP 402) requiring an `X-PAYMENT` header with a payment proof. The maximum amount required is 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals). Payment is sent to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base, using the USDC contract at `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`. The timeout for payment settlement is 300 seconds.
No documentation was found describing the request body schema, expected input parameters, or the structure of the EHR response. The crawled docs, pricing, API, and README pages all returned only a "Connect wallet" prompt with no additional content. The specific nature of the EHR data (whether it is synthetic/demo data or real patient records) is unknown. Users should exercise caution given the healthcare data context and the complete absence of documentation about data provenance, compliance, or schema.
Capabilities
Use cases
- —Retrieving electronic health record data for a specific resource (ID 72)
- —Integrating EHR data into agent workflows with per-call micropayments
- —Accessing health data without API key registration
Fit
Best for
- —Developers experimenting with x402 payment-gated health data APIs
- —Agents that need on-demand EHR access with crypto micropayments
- —Prototyping healthcare data integrations without subscription commitments
Not for
- —Production healthcare applications requiring HIPAA-compliant, documented APIs
- —Users who need detailed schema documentation or SLA guarantees
- —Bulk retrieval of large EHR datasets
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/ehr/72 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-proof>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but there is zero documentation on request/response schema, no OpenAPI spec, and no information about what EHR data is actually returned. The docs pages are empty. The healthcare context without any compliance or provenance information is a significant concern.
Warnings
- —No documentation available — all doc/pricing/API pages return only 'Connect wallet' with no content
- —No request or response schema provided; input parameters are unknown
- —EHR (Electronic Health Record) data may be subject to healthcare regulations (e.g., HIPAA); no compliance information is provided
- —Unknown whether data is synthetic/demo or real patient records
- —The specific endpoint /api/v1/ehr/72 is not listed on the provider's homepage among available APIs
Citations
- —The endpoint returns a 402 challenge requiring 20000 base units of USDC on Base networkhttps://lowpaymentfee.com/api/v1/ehr/72
- —Platform advertises $0.02 per request pricing with no API keys, no rate limits, and Base network settlementhttps://lowpaymentfee.com
- —USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/ehr/72