Pay-per-call lab results endpoint on Base via x402, settled in USDC at $0.02/request.
What it does
This x402-enabled endpoint at lowpaymentfee.com provides access to a specific lab results resource (`/api/v1/lab/results/34`) via HTTP POST. Payment is settled on the Base network using USDC (contract `0x8335…2913`) through the x402 exact-payment scheme. The per-request cost is $0.02 (maxAmountRequired of 20,000 base units at 6 decimals).
The endpoint is part of a broader platform (lowpaymentfee.com) that offers a suite of pay-per-call APIs spanning data & analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints on the platform are priced at $0.02 per request with no API keys, no rate limits, and no minimum commitments.
The specific resource at `/api/v1/lab/results/34` is labeled "Premium API Access" in the x402 challenge but lacks detailed documentation about what data it returns. There is no OpenAPI schema, no example responses, and no further description of the "lab results" payload. The endpoint is confirmed live — it returns a well-formed 402 challenge with x402 version 1. The response MIME type is `application/json`. Without additional documentation, the exact structure and content of the returned lab results remain unknown.
Capabilities
Use cases
- —Retrieving lab result data (resource ID 34) on demand with per-call USDC payment
- —Agent-driven data retrieval without pre-registration or API key management
- —Programmatic access to structured lab results via crypto micropayments
Fit
Best for
- —Agents or applications that need keyless, pay-as-you-go API access
- —Users who prefer crypto-native (Base/USDC) payment rails over subscriptions
- —Low-volume or sporadic consumers who want no minimum commitments
Not for
- —Users who need detailed documentation or schema guarantees before integrating
- —High-volume consumers who would benefit from bulk pricing or subscriptions
- —Anyone who cannot transact in USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/lab/results/34 \
-H "X-PAYMENT: <x402-payment-token>" \
-H "Content-Type: application/json"Endpoint
Quality
The endpoint is confirmed live with a valid x402 402 challenge, but there is no OpenAPI schema, no example request/response, and no documentation explaining what 'lab results/34' actually returns. The listing is essentially a stub with pricing and liveness confirmed but no functional detail.
Warnings
- —No OpenAPI or output schema available — the response structure is entirely unknown
- —The specific resource '/api/v1/lab/results/34' is not listed on the provider's homepage; its purpose is undocumented
- —No example requests or responses are available from crawled pages
- —Crawled sub-pages (/api, /pricing, /README) returned only 'Connect wallet' with no useful content
Citations
- —The endpoint returns a 402 challenge with x402Version 1, maxAmountRequired 20000, asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 (USDC) on Base networkhttps://lowpaymentfee.com/api/v1/lab/results/34
- —All endpoints on the platform are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The platform offers APIs across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com