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   * [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.
   * [APITemplate.io](https://apitemplate.io) - Auto-generate images and PDF documents with a simple API or automation tools like Zapier & Airtable. No CSS/HTML is required. The free plan comes with 50 images/month and three templates.
   * [APIVerve](https://apiverve.com) - Get instant access to over 120+ APIs for free, built with quality, consistency, and reliability in mind. The free plan covers up to 50 API Tokens per month. (Possibly taken down, 2025-06-25)
-  * [Arize AI](https://arize.com/) - Machine learning observability for model monitoring and root-causing issues such as data quality and performance drift. Free up to two models.
+  * [Arize AI](https://arize.com/) - AI observability and evaluation platform that helps teams understand, evaluate, and continuously improve AI agents and applications. Free plan includes unlimited users and evals, 25k spans and 1GB ingestion per month, 15-day retention, and Signal (10 issues per month). No credit card required. Self-hosting open-source option with Arize Phoenix.
   * [Beeceptor](https://beeceptor.com) - No-code, cloud-based platform for mocking and debugging multi-protocol APIs (REST, SOAP, gRPC & GraphQL), providing instant servers with rules-based logic, CRUD & stateful mocking, proxying, and CORS management for faster integration and testing. The free plan includes 50 requests per day and provides a public dashboard/endpoint where anyone with the dashboard URL can view submitted requests and responses.
   * [BigDataCloud](https://www.bigdatacloud.com/) - Provides fast, accurate, and free (Unlimited or up to 10K-50K/month) APIs for modern web like IP Geolocation, Reverse Geocoding, Networking Insights, Email and Phone Validation, Client Info and more.
   * [Brave Search API](https://brave.com/search/api/) - Independent web, news, image, video search and AI/LLM context API, suitable for RAG pipelines and AI agents. Free tier includes $5 in monthly credits (credit card required for verification).
@@ -1025,7 +1025,7 @@ This list results from Pull Requests, reviews, ideas, and work done by 1600+ peo
 
 ## Generative AI
 
-  * [Arize AX](https://arize.com) - AI engineering platform that helps AI eng/PMs, evaluate, and observe AI applications and agents with built-in Alyx agent. Free product includes 25k spans and ingestion volume of 1gb per month.
+  * [Arize AX](https://arize.com) - AI engineering platform that helps AI engineerings and PMs, evaluate, and observe AI applications and agents with built-in Alyx agent. Free product includes unlimited users and evals, 25k spans, 10 free Signals per month (always-on SRE agent that finds and fixes issues in production), 1GB ingestion per month. Self-hosting option with open-source Arize Phoenix.
   * [Audio Enhancer](https://voice-clone.org/tools/audio-enhancer) - AI-powered audio enhancer SaaS that removes noise and echo while preserving natural vocal clarity. totally Free: unlimited one-click enhancements, no login required, supports MP3/WAV/FLAC
   * [Braintrust](https://www.braintrustdata.com/) - Evals, prompt playground, and data management for Gen AI. Free plan gives upto 1,000 private eval rows/week.
   * [Clair](https://askclair.ai/) - Clinical AI Reference. Students have free access to the professional tool suite, which includes Open Search, Clinical Summary, Med Review, Drug Interactions, ICD-10 Codes, and Stewardship. Additionally, a free trial for the professional suite is available.