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Popular APIs
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31 APIs
Public holidays for 150+ countries — including Indian states — plus 'is it a holiday?', upcoming holidays and working-day counts.
Remove image backgrounds in one call — transparent PNG/WebP cut-outs or a solid-colour background, from a file, URL or base64.
Detect throwaway and temporary email addresses (Mailinator, 10MinuteMail and 8,900+ more domains) at sign-up — single, batch or classify.
Search millions of books by title, author or subject, look up any ISBN, and find authors — powered by Open Library.
Current weather, 9-day forecasts, hourly forecasts, and sunrise/sunset/moon phase for any city or coordinates worldwide.
Search universities in 200+ countries, look up a university by web domain, and verify student email addresses.
Validate and format phone numbers for 240+ countries: valid or not, mobile or landline, carrier, region, and E.164 format.
Medicine information from the US FDA: uses, dosage, warnings, side effects, reported adverse events and recalls.
Validate Indian payment details — IFSC (with bank and branch), GSTIN, UPI ID format — plus IBAN and card BIN checks.
Geocode cities to coordinates, reverse-geocode coordinates, measure distances and find the time zone of any place.
Get video info, grab thumbnails, make storyboard contact sheets, extract audio (MP3/WAV/M4A) and convert clips to GIF.
Evaluate expressions, solve equations, and compute derivatives, integrals and simplifications — with exact and decimal answers.