Use when the question is how well ChatGPT, Claude, Perplexity and Gemini can find, read and cite a web page: 0-100 score, letter grade, pass/fail checks (answer-bot access in robots.txt, server-rendered text, title and meta, JSON-LD, canonical, llms.txt, sitemap) and a prioritized fix list with points per fix. Blocking training crawlers does not lower the score. Errors: 400 bad_input, 502 site unreachable. Failed calls are not charged.

Contact details published on one public web page you name (https only): mailto and tel links, email addresses written in the page text, and links to social profiles, plus the page title. Reads the single page only, does not crawl, and returns nothing that the page does not show.

Facebook Page profile from Facebook's public Page Plugin: page name, follower count, verified flag and page link. Posts and discussions are not in the public plugin and are not returned. Facebook may block or rate-limit automated requests (503).

German property listings from immowelt.de for a city: per listing the property type, city, price in EUR, rooms, living area (m²), floor when given and listing URL (first page, ~30 listings), plus the market summary immowelt publishes for the search: number of offers and lowest/highest price. Apartments or houses, to buy or rent.

Official US mortgage application totals from the CFPB HMDA Data Browser API for one state and year: number of loans and their total dollar amount (aggregated, no borrower data). Filter by HMDA action taken (1 = loan originated, default).

Live spot price of gold (XAU) or silver (XAG) in USD per troy ounce from gold-api.com (aggregated free spot feed, no key). This is a spot quote with a timestamp, not the LBMA London AM/PM fixing and not vault holdings; the route name is kept for the owner.

Regional Greenhouse Gas Initiative (RGGI) CO2 allowance auctions: auction number and date, quantity offered, Cost Containment Reserve sold, quantity sold, clearing price (USD per allowance) and total proceeds, latest first, from RGGI's public auction results table. Quarterly auctions only; secondary-market prices are not included.

Luxury homes for sale in France (first results page) from the public luxuryestate.com search page: title, price in EUR, surface, rooms, bedrooms, bathrooms and city. Read from the page's embedded JSON; there is no public API.

Live position of the International Space Station from wheretheiss.at: latitude, longitude, altitude (km), speed (km/h), and whether it is over daylight. Updates roughly every second on the source; the answer is cached 30 seconds. Not a real-estate dataset.

Use this when you already have a carrier's USDOT number and need its current profile: safety rating, authority status, insurance flags, fleet size. Returns Active, Inactive, and Pending carriers alike. Billed only when the number resolves to a real carrier; an unknown number is free.

Scale a recipe from 4 to 50 servings (serves), double or halve it, with head chef Cristopher's verified rules. Each line says why: straight maths, fixed ratio (garlic, onion, ginger, thickeners) or start low and taste up (salt in a soup), plus scaling-up tips: roasting, frying, stir-fry, braises, cakes, bread. Units: g, kg, ml, l, tsp, tbsp, lb, oz, cups. Refused, never guessed: allergen-free, curing, pickling, preserving and fermenting recipes. Only a 200 answer is charged; refusals are free.

NLR (formerly NREL) PVWatts v8 estimate for a grid-connected PV system at a latitude and longitude: annual AC energy (kWh), capacity factor, annual solar radiation, and monthly AC energy. Uses the NSRDB typical-year weather file; this is an estimate, not a yield guarantee.

Candlesticks (1-minute minimum; no sub-minute)

Signed check of an x402 endpoint before you pay it: who really pays it on Base (settlements and unique payers over 30 days), a fresh unpaid probe (cached ≤5 min) with status, latency and the parsed quote, payability, paying agents' reports, the seller's claim, the scout's last real purchase (settlement transaction and whether it matched the listing), a quality score and risk flags. Free up to 300 calls a day per client at /v1/free/check.

US producer price index for wood pulp (BLS series WPU0911, via FRED), monthly index value. This is a price index, not the RISI Northern Bleached Softwood Kraft (NBSK) benchmark; the route name is kept for the owner. Latest value plus up to 24 months of history.

Top 10 Google News results for a keyword: headline, source, URL, snippet and publish time (DataForSEO SERP Google News Live). Use it for current coverage of a topic; use google_serp for regular web results.

Scores up to 20 product ideas or keywords against live demand: how many tools on the Apify Store already do it, monthly users of the top tools, the leader and its failure rate, tools that gained most users this month, x402 agent tools for the same job with paying wallets, and a verdict (UNPROVEN, SMALL, OPEN, HEATING UP, CONTESTED, CROWDED) with the reason. $0.02 per idea. A call where no idea could be checked is not charged. Runs nerolabs/rush-radar.

Whether the current reading is actually high or low, from a series captured every ~10 minutes: funding, open interest, Fear & Greed and BTC dominance, each as current, median, min, max and percentile over the window. A funding rate of 0.006% means nothing on its own; at the 89th percentile of the last 24 hours it means something. This is the question a snapshot endpoint cannot answer, whoever you buy it from.

Niche rankings of US colleges and K-12 public schools/districts, nationally or by state: rank award (e.g. #1 Best Colleges in America), name, type, overall Niche grade (A+ to D-), acceptance rate, net price and SAT range for colleges, students and student-teacher ratio for schools, review rating and count, and Niche profile URL; 25 per page plus the total number ranked.

Dublin homes for sale (first results page) from the public myhome.ie search page: address, asking price as shown on the page (EUR), size in m2, bathrooms and estate agent. Read from the page's embedded JSON; there is no official public API.