PROMPTMETHEUS is an AI tool designed as a Prompt Engineering Integrated Development Environment (IDE). It allows users to create, test, optimize, and deploy prompts for large language models (LLMs). Integrating with major AI platforms, it facilitates automation of repetitive tasks and enhancement of products and services through advanced AI capabilities. Users can develop AI integrations, automate workflows, and utilize features such as composing prompts, fine-tuning AI models, cost estimation, output evaluation, and exporting completions. PROMPTMETHEUS also offers traceability, statistics, insights, and prompt chaining, enabling users to deploy prompts to AIPI endpoints and collaborate with team members on prompt and workflow creation.