x402-gated lab results endpoint on Base, paid per-request in USDC.
What it does
This endpoint at lowpaymentfee.com provides "Premium API Access" at the path `/api/v1/lab/results/100`. It is part of a broader platform offering dozens of x402-payable API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities. All endpoints on the platform are priced at $0.02 per request, settled in USDC on the Base network with no API keys, rate limits, or subscriptions required.
The specific endpoint `/api/v1/lab/results/100` is not listed on the provider's landing page among the documented API categories, so its exact functionality is unclear. The path suggests it returns some form of lab or experimental results identified by ID 100, but no schema, documentation, or example response is available. The x402 challenge confirms the endpoint is live and accepts POST requests, charging up to 20,000 base units of USDC (i.e., $0.02) per call on Base mainnet.
The platform advertises a simple pay-per-use model: no API keys, no rate limits, instant access, and payment via the x402 protocol using USDC on Base. The x402 challenge specifies a 300-second payment timeout and returns application/json responses. Without further documentation or an OpenAPI spec, the exact request body format and response structure for this particular endpoint remain unknown.
Capabilities
Use cases
- —Fetching lab or experimental result data by ID via a single paid API call
- —Integrating pay-per-use data retrieval into agent workflows without managing API keys
- —Programmatic access to results data settled instantly in USDC on Base
Fit
Best for
- —Agents or developers wanting keyless, pay-per-call API access
- —Use cases requiring micropayment-gated data retrieval on Base
- —Workflows that benefit from no rate limits and instant access
Not for
- —Users who need detailed documentation or guaranteed SLAs before integrating
- —Bulk data retrieval where per-request pricing would be cost-inefficient
- —Anyone unable to pay in USDC on the Base network
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/lab/results/100 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-header>"Endpoint
Quality
The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but this specific path is not documented on the provider's site, there is no OpenAPI spec, no request/response schema, and no examples. The endpoint's actual purpose is unknown beyond the generic label "Premium API Access."
Warnings
- —The endpoint /api/v1/lab/results/100 is not listed among the provider's documented APIs — its purpose and expected input/output are unknown.
- —No OpenAPI spec, request schema, or response schema is available.
- —No documentation pages rendered meaningful content (most returned only 'Connect wallet').
- —The endpoint description 'Premium API Access' is generic and does not describe what data is returned.
Citations
- —The platform charges $0.02 per request with no API keys, no rate limits, and instant access on Base network.https://lowpaymentfee.com
- —The x402 challenge shows maxAmountRequired of 20000 base units of USDC (USD Coin, 6 decimals = $0.02) on Base, with a 300-second timeout.https://lowpaymentfee.com/api/v1/lab/results/100
- —The platform offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categories.https://lowpaymentfee.com