ABC classification by cumulative annual value with policy recommendations

Organic clicks and value by ranking position with the traffic gain from moving up

EOQ with total cost, orders per year, sensitivity and quantity-discount comparison

Compare job offers by total compensation, cost of living, hourly rate and weighted score

Erlang C wait probability, service level and the agents needed for a call center or queue

Allowed downtime per period, composite availability of redundant components and error budget

Transfer time for a data size over a link, with deadline bandwidth and TCP limits

Usable capacity, fault tolerance, rebuild time and URE risk for RAID levels

Hull speed, speed-length ratio, fuel burn, range and trip time

Project price with buffer, revisions, package ladder, payment schedule and overrun break-even

Hourly, day and project rates needed to hit a take-home goal as a freelancer

Concurrency, pool size, headroom and max throughput from Littles law

Latency, origin load and monthly cost savings from a cache hit ratio

Current spot price for crypto trading pairs. Input: pair — a single pair (BTC-USD) or up to 10 comma-separated pairs (BTC-USD,ETH-USD,SOL-USD) returned in ONE call for the same price — poll a whole portfolio per tick. Returns amount and currency per pair. Real-time from Coinbase.

Unified scientific literature search across arXiv (preprints), PubMed (biomedical), and Semantic Scholar (cross-field, with citation counts). Returns a flat array of papers with stable schema: source, sourceId, doi, title, authors, abstract, year, publishedAt, citationCount, url, pdfUrl. Partial failures surface in the errors array rather than failing the whole call. Optional filters: since (YYYY-MM-DD), sources (subset), limit (max 20 per source).

Live airport arrivals board by IATA code: incoming flights with origin, airline, terminal, gate, baggage belt, scheduled and revised arrival times. 机场到港航班板：到达航班的出发地、航司、登机口、行李转盘、时刻。空港到着便ボード。Tablero de llegadas. 공항 도착 항공편. Query: ?airport=JFK Accepts payment on Base or Solana — either network works.

NWS heat index, risk category and heat illness guidance

Density altitude, performance loss, takeoff roll and true airspeed

GlianaAI - Pay-per-call AI models, live market data, SEC filings and identity APIs, no signup, USDC. This resource: tools/gas-price. Current gas on an EVM chain, priced in both gwei and dollars. https://ai.glianalabs.com

Recent Kaspa blocks (max 144 per call = $1.44 cap). Optional chain_only flag to filter selected-parent chain blocks. AI agent API for backtesters and indexers. Informational research data — not investment advice.