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Using this API one can add SMS capabilities to their application/website at free of cost, i checked the delivery speed of messages from this service, and FYI its superb, try it out, and spread the word with your friends too.

FREE

Accurate weather forecasts for today and the next 7 days. Easy and free to use!

FREE

Turn your sentences and webpage into Yoda-speak! Credits to http://www.yodaspeak.co.uk/ for providing this service. This API is a test in progress, and still sitting on a dev sandbox. Things might break quite often.

FREE

100% free service including sentiment analysis, content extraction, and language detection. Enjoy!

FREE

Convert fonts from one format to another

FREEMIUM

Generate screenshots of websites in JPEG or PNG. This can either be the desktop version, mobile version or the full page version of a website.

FREEMIUM

A simple component helping with IP functionalities

FREE

This is an unofficial Pinterest API. Pinterest is a pinboard-style photo sharing website that allows users to create and manage theme-based image collections such as events, interests, hobbies, and more. Users can browse other pinboards for inspiration, 're-pin' images to their own pinboards, or 'like' photos. (Credits to http://pinterestapi.co,uk for the user-specific Pinterest APIs).

FREE

Checks for fake DNS as well as uses regex functions to check the email for the right length and accepted characters. For example it will mark as valid an email like 'john@gmail.com' but it will recognize as a fake 'john@gmaill.com' (because of the not existing domain)

FREE

DuckDuckGo Zero-click Info includes topic summaries, categories, disambiguation, official sites, !bang redirects, definitions and more. You can use this API for many things, e.g. define people, places, things, words and concepts; provides direct links to other services (via !bang syntax); list related topics; and gives official sites when available.

FREE

Detect the information of the given photo(e.g. face location, age, race, gender etc.)

FREE

Geocode and reverse lookup location information by IP address, address, or latitude / longitude coordinates.

FREE

[BETA] Unofficial Metacritic API for getting metascores and other details for Games, Movies and Music.

FREE

Simple and free currency converter. Insert an amount, what currency to convert from and what currency to convert to. This API is free to use!

FREE

Generate Word Clouds from blocks of text. Multi color and different sizes illustrate the frequency, and the "vibe" of the bigger text. Try it with blog posts, article text, speeches, tweet histories, emails, or any other written word.

FREEMIUM

Stephen here from Lambda Labs. For sample code and a graphical demo, check out http://api.lambdal.com/docs. Our API provides face recognition, facial detection, eye position, nose position, mouth position, and gender classification. If you have any questions ask! Just send an email to s@lambdal.com. Happy Hacking! -Stephen

FREEMIUM

The Spotify Web API enables you to search and lookup metadata about artists, tracks and albums using a REST interface.

FREE

This tool works by examining individual words and short sequences of words (n-grams) and comparing them with a probability model. The probability model is built on a prelabeled test set of IMDb movie reviews. It can also detect negations in phrases, i.e, the phrase "not bad" will be classified as positive despite having two individual words with a negative sentiment.

FREE

The Mutationevent QR code generator is a simple API that lets users quickly create QR codes. Users can pass in content such as text, URL and SMS and specify image size and quality. The API returns a URL path of the generated image. It uses HTTP calls and responses are formatted in JSON.

FREE

English dictionary that provides multiple definitions for most words.

FREE
Site2SMS by blaazetech
Using this API one can add SMS capabilities to their application/website at free of...
FREE
5798
developers
3069
followers
100%
uptime

Ultimate Weather Forecasts by georgevustrey
Accurate weather forecasts for today and the next 7 days. Easy and free to use!
FREE
4573
developers
3173
followers
100%
uptime

Yoda Speak by ismaelc
Turn your sentences and webpage into Yoda-speak! Credits to...
FREE
2582
developers
1553
followers
100%
uptime

Free Natural Language Processing Service by loudelement
100% free service including sentiment analysis, content extraction, and language...
FREE
2498
developers
1459
followers
100%
uptime

Online font converter by warting
Convert fonts from one format to another
FREEMIUM
2489
developers
1589
followers
100%
uptime

Website Screenshots by thumbnail
Generate screenshots of websites in JPEG or PNG. This can either be the desktop...
FREEMIUM
1616
developers
9
followers
100%
uptime

IP Utils by marksutuer
A simple component helping with IP functionalities
FREE
1590
developers
1025
followers
100%
uptime

Pinterest by ismaelc
This is an unofficial Pinterest API. Pinterest is a pinboard-style photo sharing...
FREE
1452
developers
1099
followers
100%
uptime

Email Validator by pozzad
Checks for fake DNS as well as uses regex functions to check the email for the right...
FREE
1355
developers
815
followers
100%
uptime

DuckDuckGo Zero-click Info by duckduckgo
DuckDuckGo Zero-click Info includes topic summaries, categories, disambiguation...
FREE
1352
developers
952
followers
100%
uptime

Faceplusplus face detection by faceplusplus
Detect the information of the given photo(e.g. face location, age, race, gender etc.)
FREE
1325
developers
689
followers
100%
uptime

Geocode Location Lookup by montanaflynn
Geocode and reverse lookup location information by IP address, address, or latitude...
FREE
1212
developers
828
followers
100%
uptime

Metacritic by byroredux
[BETA] Unofficial Metacritic API for getting metascores and other details for Games...
FREE
1145
developers
650
followers
100%
uptime

Currency converter by warting
Simple and free currency converter. Insert an amount, what currency to convert from...
FREE
995
developers
623
followers
100%
uptime

Word Cloud Maker by gatheringpoint
Generate Word Clouds from blocks of text. Multi color and different sizes illustrate...
FREEMIUM
977
developers
909
followers
100%
uptime

Face Recognition by lambda
Stephen here from Lambda Labs. For sample code and a graphical demo, check out...
FREEMIUM
930
developers
2258
followers
100%
uptime

Spotify Web by jperez
The Spotify Web API enables you to search and lookup metadata about artists, tracks...
FREE
897
developers
551
followers
100%
uptime

Sentiment by vivekn
This tool works by examining individual words and short sequences of words (n-grams...
FREE
836
developers
355
followers
100%
uptime

QR code generator by mutationevent
The Mutationevent QR code generator is a simple API that lets users quickly create QR...
FREE
799
developers
609
followers
100%
uptime

Dictionary by montanaflynn
English dictionary that provides multiple definitions for most words.
FREE
768
developers
489
followers
100%
uptime