Software as a service (SaaS) featuring artificial intelligence software in the nature of an autonomous artificial intelligence agent for executing tasks on behalf of users via natural language commands, automating business workflows, managing electronic mail and calendar data, automating web browser operations, executing operating system-level commands, reading and writing computer files, and performing business operations research and analysis; software as a service (SaaS) featuring artificial intelligence software for simulating human conversation and generating text responses based on natural language inputs; software as a service (SaaS) featuring artificial intelligence software for integrating with third-party messaging platforms, including chat and instant messaging applications; software as a service (SaaS) featuring artificial intelligence software for deploying, managing, and orchestrating automated background tasks and scheduled operations; software as a service (SaaS) featuring artificial intelligence software for performing document summarization, inbox management, and automated business task execution; providing temporary use of on-line non-downloadable software for routing natural language commands to large language model providers and executing responses through connected business tools and applications; application service provider (ASP) services featuring application programming interface (API) software for integrating artificial intelligence agent functionality with third-party business applications and services; design and development of computer software featuring artificial intelligence for autonomous task execution and business workflow automation