Solon 4.0 ReActAgent Enables AI Agents to Query Databases and Call APIs

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Solon 4.0 introduces ReActAgent, a framework for building AI agents capable of reasoning and taking real-world actions beyond simple text generation. The ReActAgent implements a cognitive loop — Thought, Action, Observation — allowing agents to call external tools, query databases, and fetch live data iteratively. Developers can integrate the framework by adding the solon-ai-agent module and configuring a ChatModel powered by supported large language models such as Qwen3-32B or Llama 3.2. The framework supports both API-based and YAML-based configuration, making it adaptable for various deployment environments. According to the tutorial, ReActAgent has already seen production use in automated customer support, data analysis, and multi-step workflow automation.

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