Pay-per-call medical records endpoint on Base via x402, settled in USDC at $0.02/request.
What it does
This endpoint at lowpaymentfee.com provides access to a medical records resource (record ID 92) via the x402 payment protocol. It accepts POST requests and returns JSON. Payment is settled on the Base network using USDC (contract 0x8335…2913) with an exact-scheme challenge requiring up to 20,000 base units (i.e., $0.02 given USDC's 6 decimals).
The endpoint is part of a broader platform (lowpaymentfee.com) that offers dozens of pay-per-call APIs spanning data analytics, AI/ML inference, finance/Web3, and infrastructure utilities — all priced at $0.02 per request. The platform advertises no API keys, no rate limits, and instant access. Payment is handled entirely through the x402 protocol's X-PAYMENT header; there is no traditional authentication.
No OpenAPI schema, request body documentation, or response examples are available for this specific medical records endpoint. The exact data returned and the expected POST body are unknown. The endpoint path suggests it retrieves or interacts with a specific medical record (ID 92), but the nature of the data (synthetic, demo, or real) is not documented. Given the sensitive category (medical records), consumers should exercise caution and verify the legitimacy and compliance posture of this data before relying on it.
Capabilities
Use cases
- —Retrieving medical record data on a per-call payment basis
- —Integrating health data into agent workflows without API key management
- —Testing x402 payment flows against a live endpoint
Fit
Best for
- —Developers experimenting with x402 payment protocol integrations
- —Agents that need on-demand medical record access without subscription commitments
- —Prototyping pay-per-call health data pipelines
Not for
- —Production healthcare applications requiring HIPAA-compliant, audited data sources
- —Bulk retrieval of large medical datasets (pay-per-call at $0.02 each adds up)
- —Users who need detailed API documentation or guaranteed SLAs
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/medical/records/92 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402_payment_token>"Endpoint
Quality
The endpoint is live (402 challenge captured) and pricing is clear ($0.02 USDC on Base). However, there is no OpenAPI schema, no request/response documentation, and no explanation of what data this medical records endpoint actually returns. The medical/health category raises compliance concerns that are completely unaddressed.
Warnings
- —No API documentation, OpenAPI schema, or response examples available for this endpoint.
- —Medical records category — no information on data provenance, HIPAA compliance, or whether data is synthetic vs. real.
- —Request body format is unknown; POST is required but no input schema is documented.
- —The specific record ID (92) is hardcoded in the path — unclear if other IDs are available or how discovery works.
Citations
- —The endpoint returns a 402 challenge with x402Version 1, exact scheme, on Base network, requiring up to 20,000 base units of USDC.https://lowpaymentfee.com/api/v1/medical/records/92
- —The platform prices all APIs at $0.02 per request with no API keys, no rate limits, and instant access on the Base network.https://lowpaymentfee.com
- —USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base.https://lowpaymentfee.com/api/v1/medical/records/92