The API marketplace to discover, test, and publish APIs
API marketplace for developers: free and paid APIs for travel, finance, AI, weather, maps, messaging, video and more. One key for all.
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curl -G "https://currency-exchange-rates.p.apihiver.com/v1/convert" \ -d from=USD -d to=INR -d amount=100 \ -H "X-API-Key: YOUR_API_KEY"
Example response · 200 OK
{
"result": 8312.40,
"rate": 83.124,
"base": "USD",
"target": "INR"
}Top Categories
View All CategoriesEducation
Books, dictionaries, universities and a maths solver for learning apps.
Healthcare
Medicine information, food nutrition and health & fitness calculators.
Data
Country facts, CSV/JSON conversion, fake test data and UUIDs for developers.
Image
Background removal, resizing, conversion, watermarks and colour palettes for images.
Others
QR codes, barcodes and other handy utilities for everyday development.
Travel
Flights, airports, airlines, public holidays and trip planning data for travel and booking apps.
Weather
Current conditions, forecasts, sun and moon times and earthquake alerts for any place on Earth.
AI
Text analysis, sentiment, keywords and summaries — ready-made intelligence for your product.
Popular Free and Paid APIs
View All APIsPublic 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.
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.
Top Collections
View All CollectionsMade for India
IFSC, GSTIN, UPI, Indian holidays, Hindi OCR and more.
Validation & Verification
Check emails, phones, payment details and passwords before you trust them.
Image, Video & Documents
Remove backgrounds, resize images, process video, read text and codes.
Free APIs
APIs with a free plan — no card needed to start.
How the APIHiver API marketplace works
- 1
Find an API
Search the marketplace or browse categories. Each listing shows its endpoints, pricing plans and live service level.
- 2
Test in your browser
Every endpoint has a built-in playground, so you can send a real request and see the response before you write code.
- 3
Subscribe and call it
Pick a free plan or a paid one, then use one API key for every API you subscribe to. Usage, request logs and billing live in one dashboard.
- 4
Publish your own
Add your API, describe its endpoints, set plans and prices, and APIHiver handles the key management, rate limits, analytics and payouts.