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Atmosphere/atmosphere

Portable AI agent runtime for the JVM. One @Agent class runs on Spring AI, LangChain4j, Anthropic, or 9 more behind one SPI. Token streaming, tool calls, human approvals, and governance over WebSocket, SSE, gRPC, or WebTransport/HTTP3. Speaks MCP, A2A, and AG-UI.

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Owner	Atmosphere
License (as declared)	Apache-2.0
Stars	3,821
Forks	764
Main language	Java
Created	30 June 2010
Last updated at source	14 October 2026

javaa2aacpagentic-aiai-agentsanthropiccrewaiembabelevent-drivenkooglangchain4jllmmcpmultiagentquarkusragspring-aispring-bootssewebsocket

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