These tools expose an API, so you can call them from your own code rather than working through their interface. This is the list to start from if you are building AI into a product, a script or an automation.
Rocket Visual COBOL AI provides AI-assisted capabilities for modern software development workflows.
Paid
API
Rytr helps writers turn prompt, topic, tone, and basic context into emails, social posts, product copy, outlin...
Freemium
Free plan API
Semantic Scholar provides AI-assisted academic search for papers, citations, authors, and related research for...
Free
Free plan API
An AI SQL assistant that converts natural-language database questions into queries and helps users work throug...
Freemium
Free plan API
Testim helps developers automated functional testing for web applications with practical AI-assisted workflows...
Paid
API
Virbo provides AI avatar and presenter videos for creators, marketers, educators, and teams making practical v...
Freemium
API
Agnaistic provides conversational AI assistance for users who want interactive answers, follow-ups and task-fo...
Freemium
Free plan API
Amazon Polly provides cloud text to speech for creators, businesses, educators, and developers who need practi...
Paid
API
Amazon SageMaker AI provides AI-assisted capabilities for developers, AI engineers, or software teams.
Paid
API
Apollo AI provides conversational AI assistance for users who want interactive answers, follow-ups and task-fo...
Freemium
Free plan API
AppFactor provides AI-assisted capabilities for modern software development workflows.
Paid
API
Archbee AI provides conversational AI assistance for users who want interactive answers, follow-ups and task-f...
Freemium
Free plan API
Azure AI Foundry provides AI development or engineering capabilities.
Paid
API
ChatCSV provides AI-assisted capabilities for modern software or AI workflows.
Paid
API
AI-enabled work management platform for tasks, projects, documents, goals, and team collaboration.
Freemium
Free plan API
CodeGeeX4 provides AI-assisted capabilities for software development.
Freemium
Free plan API Open source
Coder helps developers self-hosted developer environment platform for provisioning secure cloud development wo...
Free
Free plan API
Codestral helps developers with coding-focused Mistral models and related software-development workflows.
Paid
API
Creatify provides product-focused AI advertising videos for creators, marketers, educators, and teams making p...
Freemium
API
Cresta provides conversational AI assistance for users who want interactive answers, follow-ups and task-focus...
Freemium
Free plan API
API access to DeepSeek models for coding, reasoning, chat, and tool-enabled applications built by developers.
Paid
API
Dynatrace Davis AI helps developers ai-powered observability assistant for analyzing application and infrastru...
Paid
API
AI meeting assistant that records calls and produces transcripts, summaries, and useful follow-up information.
Freemium
Free plan API
Fliki provides text-to-video with AI narration for creators, marketers, educators, and teams making practical...
Freemium
API
What to check before you choose
Having an API is the start of the question rather than the end of it. Rate limits, pricing per call, whether there is a sandbox to develop against, and whether your inputs are retained or used for training all vary enormously, and all of them shape whether a tool is viable at scale. Official API documentation is the only reliable source for those details, and it changes often — treat this list as a way to find the candidates, then verify the specifics with the vendor before you build.
