Zang API

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AWeber

AWeber's API is a REST-based API that allows developers to construct their own applications for displaying and managing AWeber customer accounts.

JSON Whois - Screenshots - Google - Social Data

An API to generate a screenshot of a domain, get social data, whois data, alexa data and graphs and lots of other information.

Imgur

Imgur's API exposes the entire Imgur infrastructure via a standardized programmatic interface. Using Imgur's API, you can do just about anything you can do on imgur.com, while using your programming language of choice. If you're familiar with the APIs of Twitter, Amazon's S3, del.icio.us, or a host of other web services, you'll feel right at home. The full documentation is available at: http://api.imgur.com

Alpha Vantage

The simplest and most effective way to receive both realtime and historical stock, FX, technical indicators, cryptocurrency, and sector performance data. Constantly ranked number one for ease of use, accuracy, and price. [See the documentation.](https://www.alphavantage.co/documentation/) [Start now for free.](https://www.alphavantage.co/support/#api-key)

Google Translate

Dynamically translate between languages.

GeoDB Cities

Get global city, region, and country data. Filter cities by name prefix, country, location, time-zone, and even minimum population. Display results in multiple languages. Sort by name, country code, elevation, and population - or any combination of these. Get distances between cities. Get all country regions. Get all cities in a given region. RESTful API adheres to industry best-practices, including HATEOAS-style links to facilitate paging results. Data is periodically refreshed from GeoNames and WikiData. Backed by cloud-based load-balanced infrastructure for resiliency and performance! If you'd like to host the service internally, contact us for details through the dev portal site. Data licensed under Creative Commons, http://creativecommons.org/licenses/by/3.0

SMS & Voice Messages

Send SMS messages and voice messages using a simple to use API.

Plivo

We, at Plivo, make it easier for businesses and software developers to use cloud-powered Voice and SMS communications. We offer HTTP APIs that let you can build Voice and SMS applications or integrate such capabilities into your web or mobile application in any web standard language. We simplify the notorious complexity of the telephony business into a simple infrastructure service for you: we take care of everything from carriers contracts to call quality and messaging deliverability to technical support.

Phone

Full set of cool Telephone validation functions with a coverage of more than a hundred different countries. Phone Metropolis API can analyse, get location information and parse the content of a given phone number.

Global Telephone Number Information

For a given international international phone number, get geographic information, including city, wealth score, language, mobile number, etc.

Contact Enhance

Contact Enhance is a UK Business Data API that provides a detailed company profile on any business contact email address, company name, telephone number or Twitter ID.

On hold audio messages

Messages for voicemails and switchboards using professional voice talents