Popular 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.

Search millions of books by title, author or subject, look up any ISBN, and find authors — powered by Open Library.

Search universities in 200+ countries, look up a university by web domain, and verify student email addresses.

Current weather, 9-day forecasts, hourly forecasts, and sunrise/sunset/moon phase for any city or coordinates worldwide.

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.

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.

Extract text from images and scans in English, Hindi and Marathi, and pull out emails, phone numbers, URLs, PAN and GSTIN.