---
layout: post
title: Watchmouse Top 50 API Availability Report
image: https://s3.amazonaws.com/kinlane-productions2/api-evangelist-logos/api-evangelist-butterfly-vertical.png
author:
  name: kinlane
tags:
  - ai
---
[Watchmouse](http://www.watchmouse.com/en/ "Watchmouse"), a website and [application](http://www.kinlane.com/category/application/) performance monitoring service launched a [new report that monitors the top 50 most popular](http://www.watchmouse.com/en/spi/2011/API_availability.php "new report that monitors the top 50 most popular APIs") [APIs](http://www.apievangelist.com) as ranked by [ProgrammableWeb](http://www.programmableweb.com).

A few of the APIs included in the report include are [Google](http://www.kinlane.com/category/google/) Maps, Google Search, Flickr, [Twitter](http://www.kinlane.com/category/twitter/), YouTube, [Amazon](http://www.kinlane.com/category/amazon/amazon-web-services/), eBay, [Facebook](http://www.kinlane.com/category/facebook/), [Microsoft](http://www.kinlane.com/category/microsoft/) Virtual Earth, and Wikipedia.

Ten APIs delivered 100% uptime during the reporting period including Basecamp, Delicious, eBay, goo.gl, Google Buzz, Google Charts, Google Maps, Google Search, Quora, and SimpleGeo.

API availability is extremely important to developers that are are integrating APIs into their applications, and knowing the track record of an API is valuable information for any developer considering adoption of an API.

Watchmouse provides [API performance monitoring](http://www.watchmouse.com/en/ "API performance monitoring") as a service for any API owner, not just for popular APIs.

###### Related articles

*   [Explorers Open API Access Beyond Developers](http://apievangelist.com/2011/03/24/explorers-open-api-access-beyond-developers/) (apievangelist.com)
*   [API downtime: Who's asleep at the wheel?](http://venturebeat.com/2011/03/25/api-downtime/) (venturebeat.com)
*   [28 APIs Used in 7 Days: Twitter, Bing, Amazon and Google Maps](http://blog.programmableweb.com/2011/03/05/28-apis-used-in-7-days-twitter-bing-amazon-and-google-maps/) (programmableweb.com)