AI Agent Frameworks

Managed cloud agent platforms and open source agent frameworks.

12 tools in current dataset

Cloud vendor tools

Vendor tool cards shown below. Detailed vendor comparison rows are still being added for this category.

AWS Bedrock Agents logo

AWS Bedrock Agents

AWS

Vendor

Modular AWS agent platform combining guided Bedrock Agents with framework-agnostic AgentCore deployment.

  • Framework-agnostic deployment via AgentCore
  • MicroVM isolation model
AWS
Proprietary
No version listedDocs
Google Agent Builder + ADK logo

Google Agent Builder + ADK

Google

Vendor

Open platform pairing the Agent Development Kit with managed agent services on Vertex AI.

  • Open-source ADK
  • Google Search grounding
GCP
Proprietary service + open source SDK
No version listedDocs
Microsoft Foundry Agent Service logo

Microsoft Foundry Agent Service

Microsoft

Vendor

Fully managed agent platform with deep Microsoft 365 integration and broad model access.

  • One-click Teams and M365 deployment
  • Supports MCP, A2A, and OpenAPI
Azure
Proprietary
No version listedDocs
Filter tools by type
Filter tools by cloud support

Filtered open source and third-party tools

9 matching non-vendor tools in this filtered view.

Atomic Agents logo

Atomic Agents

BrainBlend AI

Open Source

Minimalist agent framework emphasizing composability and predictable building blocks.

  • MIT licensed
  • Composable design
5,812MIT
2.7.5Docs
AutoGen logo

AutoGen

Microsoft

Open Source

Multi-agent framework from Microsoft now in maintenance mode after Agent Framework consolidation.

  • Large adoption
  • MIT licensed
57,096MIT
Maintenance mode — Maintenance mode. Microsoft merged AutoGen with Semantic Kernel into the Microsoft Agent Framework.
0.7.5Docs
BeeAI Framework logo

BeeAI Framework

Linux Foundation

Open Source

Open agent framework formerly known as Bee Agent Framework, now under Linux Foundation governance.

  • Apache 2.0 licensed
  • Foundation governance
3,216Apache 2.0
0.1.79Docs
CrewAI logo

CrewAI

crewAI Inc.

Open Source

Open source multi-agent framework focused on autonomous teams and task coordination.

  • Large open source adoption
  • MIT licensed
48,914MIT
1.14.1Docs
LangGraph logo

LangGraph

LangChain

Open Source

Stateful agent orchestration framework with graph-based execution and durable workflows.

  • Popular graph abstraction
  • Strong agent workflow patterns
29,298Proprietary core
1.1.7a2Docs
LlamaIndex logo

LlamaIndex

LlamaIndex Inc.

Open Source

Agent and retrieval framework with strong indexing, data connectors, and orchestration support.

  • Strong retrieval tooling
  • MIT licensed
48,601MIT
0.14.20Docs
Mastra logo

Mastra

Mastra AI

Open Source

Agent framework focused on composable workflows, tooling, and modern developer ergonomics.

  • Apache 2.0 plus enterprise path
  • Fast growth
23,011Apache 2.0 + EE
1.24.0Docs
OpenAI Agents SDK logo

OpenAI Agents SDK

OpenAI

Open Source

Production successor to Swarm for agentic OpenAI workflows with broader model support.

  • MIT licensed
  • Production successor to Swarm
20,784MIT
0.13.6Docs
Semantic Kernel logo

Semantic Kernel

Microsoft

Open Source

Microsoft orchestration SDK evolving into the unified Microsoft Agent Framework direction.

  • Broad language support
  • MIT licensed
27,706MIT
1.41.2Docs

Important notes

Warning

AutoGen: Maintenance mode. Microsoft merged AutoGen with Semantic Kernel into the Microsoft Agent Framework.

Warning

BeeAI Framework: Renamed from Bee Agent Framework; governance moved from IBM to Linux Foundation.

Warning

LangGraph: LangGraph core package uses a proprietary license. Auxiliary packages are MIT. Enterprises must review licensing carefully.

Warning

OpenAI Agents SDK: OpenAI Swarm was replaced by the Agents SDK.

Warning

Semantic Kernel: Evolving into the Microsoft Agent Framework.

Recent updates

2026-04-14
CrewAI

CrewAI posted a new pre-release on April 14 with resume hints for devtools failure handling and a Bedrock Converse API strict-mode fix, extending its agent runtime integrations.

Source
2026-04-09
OpenAI Agents SDK

The OpenAI Agents SDK April 9 release hardened SQLite and SQLAlchemy session handling and expanded tracing documentation, signaling continued stabilization of the production agent stack.

Source
2026-04-08
Semantic Kernel

Semantic Kernel's April 8 release included prompt-template serialization improvements and dependency updates, keeping Microsoft's orchestration SDK active as Agent Framework work continues.

Source
2026-03-16
LlamaIndex

LlamaIndex's March 16 release notes show coordinated package updates across the agent stack, including AgentMesh and Azure-related modules, alongside deprecation of Python 3.9 support.

Source