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 access to an Electronic Health Record (EHR) resource via the x402 payment protocol. The specific path `/api/v1/ehr/100` suggests retrieval of a particular EHR record (ID 100). Payment is settled on the Base network using USDC (contract 0x8335…2913) at a cost of $0.02 per request (20,000 base units with 6 decimals). The endpoint accepts POST requests and returns application/json responses.
The broader lowpaymentfee.com platform hosts a variety of x402-gated APIs spanning data analytics, AI/ML inference, finance, crypto, and utility services — all priced uniformly at $0.02 per call. The platform advertises no API keys, no rate limits, and instant access. However, documentation is extremely thin: the /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no further technical detail, schemas, or example payloads.
Because there is no OpenAPI spec, no request/response schema documentation, and no explanation of what the EHR endpoint actually returns, this listing carries significant uncertainty. The endpoint is confirmed live (returns a valid x402 402 challenge), but the actual data content, required POST body fields, and response structure are unknown.
Capabilities
Use cases
- —Retrieving electronic health record data on a per-request payment basis
- —Integrating EHR lookups into agent workflows without managing API keys
- —Accessing health data via crypto micropayments on Base
Fit
Best for
- —Developers needing on-demand EHR data without subscription commitments
- —AI agents that can settle x402 payments autonomously 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 and guaranteed SLAs before integrating
- —Bulk EHR data retrieval at scale (no documented batch endpoints)
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/ehr/100 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>" \
-d '{}'Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, confirming pricing and network. However, there is zero documentation on request/response schemas, no OpenAPI spec, and the docs pages are empty. The nature of the EHR data is completely undocumented, making this effectively a stub listing.
Warnings
- —No API documentation available — /docs, /pricing, /api, and /README pages all show only 'Connect wallet' with no content.
- —No request body schema or response schema documented; callers cannot know what to send or what they will receive.
- —EHR (Electronic Health Record) data may be subject to HIPAA and other health-data regulations — provenance and compliance status are unknown.
- —It is unclear whether this endpoint returns real patient data, synthetic/demo data, or placeholder content.
- —The 'extra.name' field says 'USD Coin' and 'version: 2', confirming USDC, but no further token metadata is provided.
Citations
- —Endpoint returns x402 402 challenge with maxAmountRequired 20000 in USDC on Basehttps://lowpaymentfee.com/api/v1/ehr/100
- —Platform advertises $0.02 per request, no API keys, no rate limits, instant access, Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/ehr/100
- —Documentation pages (/docs, /pricing, /api, /README) contain only 'Connect wallet' prompthttps://lowpaymentfee.com/docs