2025 is the year of AI agents, according to a Google paper from October 2024, an AI agent is software that consists of three tiers. Langflow is a low-code development environment that treats agents as first-class citizens, allowing users to create and run simple agents with ease. By using the "Simple Agent" template in Langflow, users can connect components such as a calculator and web browser to solve real-world problems like currency conversion. The agent's knowledge and capabilities can be extended through various means, including API integrations, and it can be consumed by other applications via network requests. Astra DB provides a complete data API for building production RAG apps with high relevancy and low latency.