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   * [Abstract API](https://www.abstractapi.com) — API suite for a variety of use cases including IP geolocation, gender detection or even email validation.
   * [algorithmia.com](https://algorithmia.com/) — Host algorithms for free. Includes free monthly allowance for running algorithms. Now with CLI support.
   * [Apify](https://www.apify.com/) — Web scraping and automation platform that lets you create an API extracting websites data. Free tier with 10k monthly crawls and 7 days data retention.
+  * [Atlas toolkit](https://atlastk.org/) - Lightweight library to develop single-page web applications that are instantly accessible. Available for Java, Node.js, Perl, Python and Ruby.
   * [Beeceptor](https://beeceptor.com) - Mock a rest API in seconds, fake API response and much more. Free 50 requests per day, public dashboard, open endpoints (anyone having link to the dashboard can view requests and responses).
   * [bigml.com](https://bigml.com/) — Hosted machine learning algorithms. Unlimited free tasks for development, limit of 16 MB data/task.
   * [Calendarific](https://calendarific.com) - Enterprise-grade Public holiday API service for over 200 countries. Free plan includes 1000 calls per month.