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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

Sentiment analysis, stemming and lemmatization, part-of-speech tagging and chunking, phrase extraction and named entity recognition.

FREEMIUM

CloudSight API (fka CamFind API) is the image recognition and reverse image search that powers the popular mobile visual search engine app, CamFind. It is the welcomed replacement for the void left following the purchase of IQ Engines by Yahoo!. CloudSight API promises to be the best solution for state of the art image recognition and reverse image recognition, which developers can incorporate into both apps and web applications.

FREEMIUM

Check if email address really exist or not using this API and validate email id of any domain.

FREE

A fun API combining cowsay and fortune cookies.

FREE

Flight Search API. Searches in Airblue. Other flights coming soon PIA, Shaheen Air.

FREE

This is a term synonym discovery service that exploits that structure of Wikipedia redirects to discover almost-equivalent terms. You can try terms like C++, or Hillary Clinton, or Mihapjungguk to see some of the results.

FREE

Returns well-parsed whois fields in XML and JSON formats. Use it to track domain registrations, check domain name availability, detect credit card fraud, locate users geographically. The service automatically follows the whois registry referral chains until it finds the correct whois registrars with the most complete whois data. Works over basic HTTP and avoices firewall-related problems of accessing Whois servers on port 43.

FREE

The "Have I been pwned?" service allows you to search for accounts (usernames and email addresses) that have appeared in data breaches that the attackers have made public.

FREE

This API provides a set of useful features for JSON data. Send me a private message to ask for more features. Enjoy :)

FREE

The most descriptive and accurate BMI Calculator API available on the internet!

PAID

Convert Any video into Mp3 using youtubeinmp3. Search the song convert first video into MP3

FREE

The HTML to text tool tries to extract text content out of an HTML document. It ignores 'non-text' HTML content (like script, object and applet tags). Feedback on this tool is welcomed on our blog at http://blog.2partsmagic.com/2012/09/text-2-html-converter-online-tool-api/

FREE

US Zipcode, County, City, and State Boundaries API: A simple & very fast API that will allow you to integrate multiple GeoJson US boundaries results into your apps and systems. This API is designed to be used programatically for optimal performance. When using the MashApe UI for queries expect significant latency issues on large result sets!

PAID

A simple, scalable API for image processing. 6px is a powerful and scalable API for image processing in the cloud. We provide the critical infrastructure so that developers can create smart image-based applications and services.

FREE

Deep Learning-based emotion recognition software that reads facial micro-expressions in real-time with regular cameras.

FREEMIUM

this api can give you a strong password to make you app more safety.

FREE

Face detection, face alignment, gender classification, age estimation and emotion estimation. Check our demo at: http://visagetechnologies.com/mashape/image/

FREEMIUM

This API can be used to compute a set of readability metrics for a given text. We currently support the following metrics: Automated Readability Index, Coleman-Liau Index, Flesch–Kincaid Grade Level, Flesch Reading Ease, Gunning-Fog Index, SMOG score, and SMOG Index. The service is deployed at Google App Engine and available at https://ipeirotis-hrd.appspot.com/ The code and documentation are available on Github at https://github.com/ipeirotis/ReadabilityMetrics

FREEMIUM

Get the connection type,circle name and operator name using this API. Mobile number portability not supported as of now. Please get in touch with me if you would like to improve this api in any way or would like some other feature added to it. See you around!!!

PAID
DuckDuckGo Zero-click Info by duckduckgo
DuckDuckGo Zero-click Info includes topic summaries, categories, disambiguation...
FREE
3131
developers
2736
followers
100%
uptime

Text-Processing by japerk
Sentiment analysis, stemming and lemmatization, part-of-speech tagging and chunking...
FREEMIUM
1370
developers
1501
followers
100%
uptime

CloudSight by imagesearcher
CloudSight API (fka CamFind API) is the image recognition and reverse image search...
FREEMIUM
1320
developers
1332
followers
100%
uptime

Verify email address by ajith
Check if email address really exist or not using this API and validate email id of...
FREE
972
developers
839
followers
100%
uptime

Fortunecow by thibaultcha
A fun API combining cowsay and fortune cookies.
FREE
701
developers
681
followers
100%
uptime

Such Flight by siddiq
Flight Search API. Searches in Airblue. Other flights coming soon PIA, Shaheen Air.
FREE
692
developers
670
followers
100%
uptime

WikiSynonyms by ipeirotis
This is a term synonym discovery service that exploits that structure of Wikipedia...
FREE
669
developers
583
followers
100%
uptime

whois by whoisapi
Returns well-parsed whois fields in XML and JSON formats. Use it to track domain...
FREE
567
developers
508
followers
100%
uptime

Have I been pwned by troyhunt
The "Have I been pwned?" service allows you to search for accounts (usernames and...
FREE
538
developers
500
followers
100%
uptime

Json Tools by thefosk
This API provides a set of useful features for JSON data. Send me a private message...
FREE
510
developers
472
followers
100%
uptime

BMI Calculator by navii
The most descriptive and accurate BMI Calculator API available on the internet!
PAID
471
developers
490
followers
100%
uptime

youtubeTOmp3 by kashyap32
Convert Any video into Mp3 using youtubeinmp3. Search the song convert first video...
FREE
432
developers
435
followers
100%
uptime

HTML2Text by pbkwee
The HTML to text tool tries to extract text content out of an HTML document. It...
FREE
418
developers
377
followers
100%
uptime

boundaries-io by VanitySoft
US Zipcode, County, City, and State Boundaries API: A simple & very fast API that...
PAID
294
developers
315
followers
100%
uptime

6px by nparsons08
A simple, scalable API for image processing. 6px is a powerful and scalable API...
FREE
276
developers
278
followers
100%
uptime

Eyeris by eyeris
Deep Learning-based emotion recognition software that reads facial micro-expressions...
FREEMIUM
233
developers
296
followers
100%
uptime

strongpassword by tabalt
this api can give you a strong password to make you app more safety.
FREE
230
developers
192
followers
100%
uptime

VT Face Detection And Analysis by VisageTechnologies
Face detection, face alignment, gender classification, age estimation and emotion...
FREEMIUM
225
developers
27
followers
100%
uptime

Readability Metrics by ipeirotis
This API can be used to compute a set of readability metrics for a given text. We...
FREEMIUM
203
developers
198
followers
100%
uptime

Indian Phone Number Info by Avneesh
Get the connection type,circle name and operator name using this API. Mobile number...
PAID
195
developers
149
followers
100%
uptime