Providing temporary use of online non-downloadable software using large language models (LLMs) for computer software code generation; software as a service (SAAS) services featuring software using artificial intelligence for code generation and software development; platform as a service (PAAS) featuring computer software platforms using artificial intelligence for planning, generating, modifying, testing, debugging, documenting and deploying computer software and computer source code; providing temporary use of online non-downloadable autonomous artificial intelligence software agents for generating, modifying and managing computer software and computer source code; application service provider featuring application programming interface (API) software for code generation and software development; providing temporary use of online non-downloadable computer software development tools.