Best Agent Frameworks Tools (2026)
The top agent frameworks tools on Flux, ranked by Flux Score and community signal. 49 tools compared — vote to move them up the board.
LangGraph
Stateful orchestration framework for agents
CrewAI
Framework for orchestrating role-playing AI agents
Browser Use
Let AI agents control your browser
Relevance AI
Build and manage an AI workforce, no code
Composio
Tool and MCP integration layer for AI agents
LangChain
The framework for building LLM apps and agents.
OpenAI Agents SDK
Lightweight framework for building multi-agent workflows.
DeerFlow
ByteDance's open-source SuperAgent harness for research and automation.
Letta (MemGPT)
The agent-memory framework from the MemGPT team.
Braintrust
Eval and observability platform for AI & agents.
HyperAgent
Playwright supercharged with AI — natural-language browser automation.
Chroma
Developer-friendly open-source embedding database
Cognee
Memory and knowledge-graph layer for AI agents
Dify
Open-source LLM app and agent development platform
DSPy
Programmatically optimize LLM prompts and pipelines
Fetch.ai
uAgents framework for autonomous economic AI agents
Flowise
Open-source drag-and-drop LLM agent builder
Giza
Agent stack for autonomous DeFi (DeFAI)
Haystack
Production-ready orchestration for RAG and agent pipelines
Langflow
Python-native visual builder for LLM agents and RAG
LlamaIndex
Data framework with first-class agent primitives for RAG-centric agents
Milvus
Open-source vector database for billion-scale search
Olas
Protocol for co-owned, autonomous onchain AI agents
PydanticAI
Type-safe Python agent framework from the Pydantic team
Stack AI
No-code platform for enterprise AI agents
thirdweb
Full-stack Web3 development platform
Turbopuffer
Serverless vector + hybrid search on object storage
Wayfinder
Omnichain protocol for AI agents that navigate any blockchain
Weaviate
Open-source vector database with native hybrid search
AgentOps
Observability and analytics for AI agents.
Arize AI
AI observability and LLM monitoring for production models.
Arize Phoenix
Open-source observability for tracing and evaluating AI agents.
AutoGen
Microsoft's event-driven framework for multi-agent conversations.
Claude Code
Anthropic's terminal coding agent for repo-wide engineering work.
Coinbase AgentKit
Toolkit giving AI agents on-chain wallets, swaps, and contract calls.
Confident AI
Evaluation and observability for LLM apps, built on DeepEval.
ElizaOS
Open-source framework for building autonomous on-chain AI agents — the default for DeFAI.
Google ADK
Agent Development Kit for building multi-agent pipelines on Vertex AI.
Google Antigravity
Google's unified orchestration platform for building agents.
Helicone
Open-source observability platform for LLM applications.
Inngest
Durable execution and orchestration for background jobs and agents.
Langfuse
Open-source LLM engineering and observability platform.
Mastra
TypeScript framework for agents, workflows, RAG, and observability in one package.
Microsoft Agent Framework
Microsoft's enterprise agent orchestration layer for Azure AI Foundry.
nexos.ai
AI agent management console for governing fleets across departments.
Rasa
Low-code conversational AI platform with on-prem deployment.
ShipAI
Agentic SaaS boilerplate with workflow orchestration and tool-calling scaffolding.
Temporal
Durable execution platform for reliable distributed workflows.
Vercel AI SDK
TypeScript toolkit for building AI apps and agents with streaming and tool-calling.