Open-Source Agentic AI Category "AI Agent Development Frameworks"

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Runs without your laptopBrowser + messaging appsBackups and clonesMemory survives restarts

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Hosted agent

OpenClaw or Hermes

saved state

Browser

Slack

“I checked the inbox, handled the routine messages, and sent you the one question that needs a decision.”

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AtlasClaw

Open-source enterprise framework for multi-user agents, governed execution, webhooks, Skills, and provider-based integrations.

Agentic AI: Anthropic Cybersecurity Skills

Anthropic Cybersecurity Skills

Open-source library of 817 structured cybersecurity skills for AI coding agents and security workflows.

DeerFlow

Open-source super agent harness by ByteDance for long-horizon research, coding, and creation with sub-agents, memory, sandboxes, and skills.

Sublayer

Model-agnostic Ruby framework for building AI-powered automations with Generators, Actions, and Agents.

ConnectOnion

Open-source Python framework for building production-ready LLM agents with plain functions as tools.

Agent Browser

Open-source CLI that lets AI agents control Chrome with compact text output for browser automation tasks.

VoltAgent

Open-source TypeScript framework and engineering platform for building agents with memory, tools, workflows, RAG, guardrails, and observability.

PageIndex

Reasoning-based vectorless RAG for long documents using a hierarchical tree index, available as open source plus cloud chat, MCP, and API.

memU

Open-source agentic memory framework for 24/7 proactive AI agents with file-system memory, intention prediction, and lower token costs.

Mastra

Open-source TypeScript framework for building AI agents, workflows, RAG, memory and MCP, with optional cloud studio and observability.

Agent S

Open-source GUI agent framework that lets an LLM use your computer like a human via an Agent-Computer Interface.

Rasa

Open-source conversational AI framework with Pro & Studio tools to build secure, production-grade chat and voice assistants.

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