atmosphere: Portable AI agent runtime for the JVM

by Atmosphere · MCP Server · ★ 3.8k

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

How to install atmosphere

brew install Atmosphere/tap/atmosphere
npm install atmosphere.js

Taken from the project's README on GitHub. Check the security audit before running it.

Security audit verdict: SAFE · quality 65/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

a2aacpagentic-aiai-agentsanthropiccrewaiembabelevent-drivenjavakoog

Quick Facts

Stars3,830
Forks763
LanguageJava
CategoryMCP Server
LicenseApache-2.0
Quality Score65/100
Open Issues9
Last Updated2026-11-04
Created2010-06-30
Platformsjava, mcp
Est. Tokens~23k

About atmosphere

Atmosphere The real-time engine for AI agents on the JVM. Tokens flow from the LLM runtime to the client through a broadcaster you can filter, gate, and observe — over WebSocket, SSE, long-polling, or gRPC, and out through MCP, A2A, and AG-UI. A plain @Agent is a full deep agent, batteries-included, and Atmosphere handles reconnect, authorization, and governance.

Compatible Skills

These tools work well together with atmosphere for enhanced workflows:

  • JavaClaw — semantic(0.45)+complementary+shared_fw(anthropic,spring)+same_lang+similar_pop+shared_platform (82%)
  • mateclaw — semantic(0.36)+shared_fw(anthropic,spring)+rare_topics+same_lang+similar_pop+shared_platform (77%)
  • spring-ai-agent-utils — semantic(0.38)+complementary+shared_fw(spring)+rare_topics+same_lang+similar_pop+shared_platform (76%)

atmosphere alternative? Top 6 similar tools

Looking for a atmosphere alternative? If you're comparing atmosphere with other mcp server tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

  • voltagent by VoltAgent · ⭐ 10.9k

    AI Agent Engineering Platform built on an Open Source TypeScript AI Agent Framework

  • yu-ai-agent by liyupi · ⭐ 2.7k

    编程导航 2025 年 AI 开发实战新项目,基于 Spring Boot 3 + Java 21 + Spring AI 构建 AI 恋爱大师应用和 ReAct 模式自主规划智能体YuManus,覆盖 AI 大模型接入

  • mcp-memory-service by doobidoo · ⭐ 2.1k

    Open-source persistent memory for AI agent pipelines (LangGraph, CrewAI, AutoGen) and Claude. REST API + knowl

  • trpc-agent-go by trpc-group · ⭐ 1.9k

    A Go framework for building production agent systems with graph workflows, tools, memory, A2A, AG-UI, MCP, eva

  • cuga-agent by cuga-project · ⭐ 1.1k

    CUGA is an open-source generalist agent harness for the enterprise, supporting complex task execution on web a

  • argo by xark-argo · ⭐ 827

    ARGO is an open-source AI Agent platform that brings Local Manus to your desktop. With one-click model downloa

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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