Agents-Flex
Website: https://agentsflex.com/
Open-source Java AI agent framework with RAG, MCP, WebSearch and observability.
Agents-Flex is a lightweight open-source AI agent development framework for the Java ecosystem. The official site verifies support for RAG, MCP, AI Skills, WebSearch, SubAgent architecture, LLM Wiki, Text2SQL, LLM load balancing and high availability, OpenTelemetry observability, token usage statistics, trace analysis, multi-model integrations including OpenAI, Qwen, DeepSeek and Ollama, function and tool calling, JavaScript and Python script execution, vector databases including PGVector, Milvus, Chroma and Redis, image generation and understanding, memory, rerank and Spring Boot integration. The site states that Agents-Flex is released under the Apache License.
Agents-Flex is released under the Apache License.
What is Agents-Flex?
Agents-Flex is an open-source AI agent framework for Java teams. The official site describes it as a lightweight AI agent development framework for the Java ecosystem with RAG, MCP, AI Skills, WebSearch, SubAgent, LLM Wiki and enterprise observability.
What can you do with it?
Developers can build agents with tool calling, WebSearch, MCP connections, Text2SQL, RAG pipelines, vector stores, multi-model routing, memory, reranking, prompt frameworks, image generation and understanding, JavaScript or Python execution, and Spring Boot integration. Observability features include OpenTelemetry, token statistics, distributed tracing and log controls.
Pricing and affiliate notes
The official site states that Agents-Flex is released under the Apache License, so pricing is stored as free. No public affiliate program was verified, so affiliate monetization is disabled.
Best fit
Agents-Flex is best for Java developers, backend teams, AI developers, engineering teams and technical founders building production AI agents inside existing Java or Spring environments.