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@@ -202,6 +202,7 @@ This list is the result of Pull Requests, reviews, ideas and work done by 1100+
   * [Apify](https://www.apify.com/) — Web scraping and automation platform to create an API for any website and extract data. Ready-made scrapers, integrated proxies, and custom solutions. Free plan with $5 platform credits included every month.
   * [API Mocha](https://apimocha.com) - Completely free online API mocking for testing and prototyping.  Make up to 500 requests per day, fully customizable API responses, download mock rules as a Postman collection.
   * [APITemplate.io](https://apitemplate.io) - Auto-generate images and PDF documents with a simple API or automation tools like Zapier & Airtable. No CSS/HTML required. Free plan comes with 50 images/month and 3 templates.
+  * [Arize AI](https://arize.com/) - Arize AI free observability tool for monitoring machine learning models in production and root-causing issues such as data quality and performance drift.
   * [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.
@@ -715,6 +716,7 @@ This list is the result of Pull Requests, reviews, ideas and work done by 1100+
   * [appdynamics.com](https://www.appdynamics.com/) — Free for 24 hours metrics, application performance management agents limited to one Java, one .NET, one PHP and one Node.js
   * [appneta.com](https://www.appneta.com/) — Free with 1-hour data retention
   * [appspector.com](https://appspector.com/) - Mission control, for remote iOS/Android/Flutter debugging. Free for small traffic usage (64MB of logs).
+  * [Arize AI](https://arize.com/) - Arize AI free observability tool for monitoring machine learning models in production and root-causing issues such as data quality and performance drift.
   * [assertible.com](https://assertible.com) — Automated API testing and monitoring. Free plans for teams and individuals.
   * [blackfire.io](https://blackfire.io/) — Blackfire is the SaaS-delivered Application Performance Solution. Free Hacker plan (PHP only)
   * [checklyhq.com](https://checklyhq.com) - Open source E2E / Synthetic monitoring and deep API monitoring for developers. Free plan with 5 users and 50k+ check runs.