Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.
What it does
This endpoint at lowpaymentfee.com provides pay-per-request API access settled via the x402 protocol on the Base network using USDC. The specific resource `/api/v1/lab/results/97` is labeled "Premium API Access" and costs up to $0.02 per call (20,000 base units of USDC with 6 decimals). Payment is made inline with each HTTP POST request — no API keys, accounts, or rate limits are required.
The broader lowpaymentfee.com platform advertises a suite of endpoints spanning data & analytics (metrics, reports, data export, insights), AI & machine learning (sentiment analysis, text summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). All endpoints are listed at the same $0.02/request price point and use the same x402 payment flow on Base.
The specific endpoint `/api/v1/lab/results/97` does not have detailed documentation explaining what "lab results" refers to — the path suggests it may return a specific result set identified by ID 97, but the exact data content is undocumented. No OpenAPI schema, request/response examples, or detailed field descriptions were found in the crawl. The endpoint is confirmed live (returns a proper 402 x402 challenge).
Capabilities
Use cases
- —Accessing premium data results without creating an account or managing API keys
- —Agent-driven workflows that need on-demand paid data retrieval
- —Programmatic access to lab/results data with per-call USDC micropayments
Fit
Best for
- —Developers wanting frictionless pay-per-use API access on Base
- —AI agents that can settle x402 payments autonomously
- —Users who prefer no-subscription, no-rate-limit API consumption
Not for
- —Users who need detailed documentation or guaranteed SLAs before integrating
- —Anyone without a Base-compatible USDC wallet or x402 client
- —Bulk data consumers who would benefit from flat-rate pricing
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/lab/results/97 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <x402-payment-token>"Endpoint
Quality
The endpoint is confirmed live with a valid x402 402 challenge, but there is no documentation on what `/api/v1/lab/results/97` actually returns. No OpenAPI spec, no request/response schema, and no description beyond the generic 'Premium API Access' label. The broader site lists many endpoints but provides no per-endpoint docs. Effectively a stub listing.
Warnings
- —No documentation found for the specific /api/v1/lab/results/97 endpoint — purpose and response format are unknown
- —No OpenAPI schema or request/response examples available
- —The 'lab/results/97' path is opaque; it is unclear what data is returned or what input is expected in the POST body
- —Other crawled pages (/api, /pricing, /README) returned only a 'Connect wallet' prompt with no useful content
Citations
- —The endpoint returns a 402 x402 challenge with maxAmountRequired of 20000 base units of USDC on Basehttps://lowpaymentfee.com/api/v1/lab/results/97
- —All endpoints are priced at $0.02/request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —The platform offers endpoints across Data & Analytics, AI & ML, Finance & Web3, and Infrastructure categorieshttps://lowpaymentfee.com
- —USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base networkhttps://lowpaymentfee.com/api/v1/lab/results/97