AgenticBook

Google A2A Protocol

github.com

Google's Agent-to-Agent (A2A) protocol for standardized inter-agent communication. Provides a structured way for agents to discover capabilities, delegate tasks, and exchange artifacts — designed to work alongside MCP for a complete agentic interop stack.

GoogleProtocolStandard

More in Agent Core & Orchestration

AgnoFrameworks & Orchestration Libraries

Lightweight, high-performance agent framework formerly known as Phidata. Agents are pure Python classes with built-in memory, knowledge, tools, and reasoning. Supports multimodal agents and ships with a monitoring UI out of the box.

PythonLightweightMultimodal
Llama AgentsFrameworks & Orchestration Libraries

Multi-agent framework built on LlamaIndex for building production agentic pipelines. Implements a message-queue architecture with service discovery and a control plane for coordinating agents. Enables both local development and cloud deployment.

PythonLlamaIndexProduction
TemporalWorkflow & State Management

Durable execution platform for long-running, fault-tolerant workflows. Agents built on Temporal survive process crashes, network failures, and server restarts — state is automatically persisted and replayed, making it production-grade infrastructure for complex multi-step agents.

GoTypeScriptDurable
AgencyMicro-Agent & Lightweight Libs

Minimal Go library for building message-passing agent systems with clean abstractions. Designed for developers who want full control over agent logic without opinionated orchestration overhead — ideal for embedding into existing Go services.

GoLightweightMinimal
CrewAIMulti-Agent Frameworks

Role-playing multi-agent framework where agents take on specialized roles (researcher, writer, engineer) and collaborate toward a shared goal. Supports both sequential and hierarchical process flows with human-in-the-loop checkpoints.

PythonOpen-SourceMulti-Agent
AutoGen StudioMulti-Agent Frameworks

Low-code interface to build, debug and evaluate multi-agent workflows powered by AutoGen. Provides a drag-and-drop UI for designing agent teams and testing their conversations. Ships with sample agents for coding, research, and data analysis.

MicrosoftNo-CodeUI