Technical / Code-First Frameworks · Updated 1 November 2026
Top Frameworks
Ranked by real-world demand. As of 1 November 2026, LangChain is the most-sought framework — index 77.0 of 100.
Framework finder
Which agent framework should you use?
There are 34 on the board. Answer 3 quick questions and get the 2–3 that actually fit how you build — not just the most popular.
How these frameworks differ
The board ranks by demand. This map places each tool by low-level / composable → high-level / opinionated and single-agent → multi-agent team, so you can choose by fit, not just popularity.
| # | Tool | Index | Demand | GitHub ⭐ | Searches/mo |
|---|---|---|---|---|---|
| 1 | LangChainThe most widely adopted LLM application toolkit — chains, tools, and hundreds of integrations in Python and JavaScript. | 77.0 | 191k | 38k | |
| 2 | LangGraphGraph-based agent orchestration from the LangChain team — explicit nodes, edges, and state for controllable, inspectable workflows. | 67.1 | 48k | 33k | |
| 3 | LlamaIndexThe data framework for LLM apps — connects agents to your own documents with best-in-class retrieval (RAG). | 61.7 | 56k | 4.9k | |
| 4 | CrewAIRole-based multi-agent framework — define a crew of cooperating agents and let them divide the work. | 60.0 | 60k | 7.6k | |
| 5 | Google ADKGoogle's Agent Development Kit — Gemini-native, multi-agent by design, wired into Google Cloud. | 58.8 | 22k | 8.1k | |
| 6 | Agent SSimular's computer-use framework — agents that drive a desktop the way a person does. | 57.9 | 13k | 77k | |
| 7 | OpenAI Agents SDKOpenAI's lightweight SDK for building agents, with built-in handoffs, guardrails, and tracing. | 57.9 | 34k | 5.4k | |
| 8 | Spring AIBrings LLM and agent patterns to the Spring ecosystem for Java teams. | 57.6 | 9.6k | 3.6k | |
| 9 | Anthropic Claude Agent SDK~Anthropic's SDK for building agents on Claude — the same harness that powers Claude Code. | 57.0 | 10k | 9.9k | |
| 10 | HaystackDeepset's production-oriented framework for search, RAG, and agent pipelines. | 56.3 | 27k | 3.9k | |
| 11 | Microsoft Agent FrameworkMicrosoft's unified agent framework for Python and .NET — the successor to AutoGen and Semantic Kernel, with graph-based workflows and enterprise plumbing. | 53.4 | 14k | 6.6k | |
| 12 | Strands AgentsModel-driven SDK for building an agent harness end to end — Python and TypeScript, any model, any cloud. | 51.9 | 9k | 2.4k | |
| 13 | VoltAgentTypeScript agent framework with a built-in observability console for tracing runs. | 50.6 | 11k | 356 | |
| 14 | Pydantic AIType-safe agent framework from the Pydantic team — structured, validated outputs built in. | 50.3 | 21k | — | |
| 15 | MastraTypeScript-first agent framework — workflows, RAG, and evals with a strong developer experience. | 50.0 | 29k | 1.6k | |
| 16 | CopilotKitThe frontend stack for in-app agents — React and mobile components that put an agent inside your product's UI. | 50.0 | 38k | 1.6k | |
| 17 | DSPyStanford's framework for programming rather than prompting LLMs — it optimises prompts and pipelines automatically. | 49.6 | 39k | 1.1k | |
| 18 | Semantic KernelMicrosoft's enterprise orchestration framework for .NET, Python, and Java — now converging into Microsoft Agent Framework. | 49.5 | 29k | 1.6k | |
| 19 | Eliza (elizaOS)TypeScript framework for autonomous character agents, popular for social and web3 personas. | 45.6 | 20k | 720 | |
| 20 | AgnoFast, lightweight framework for multimodal, multi-agent systems with built-in memory and knowledge. | 45.2 | 43k | 1.2k | |
| 21 | Letta (MemGPT)Agents with persistent, self-editing memory — grown out of the MemGPT research — that learn across sessions. | 42.9 | 25k | 575 | |
| 22 | smolagentsHugging Face's minimal agent library — agents that think in code, in about a thousand lines. | 42.7 | 30k | 1.6k | |
| 23 | AgentScopeAlibaba's multi-agent framework built for visibility — inspect, replay and debug what your agents actually did. | 40.7 | 35k | 280 | |
| 24 | Vision Agents~Stream's SDK for voice and vision agents — model-agnostic, built for real-time video. | 40.6 | 8.2k | 170 | |
| 25 | Qwen-AgentAlibaba's agent framework on top of Qwen — function calling, MCP and a code interpreter out of the box. | 38.8 | 17k | — | |
| 26 | CAMEL~Research-driven multi-agent framework for building and studying communicating, role-playing agent societies. | 37.8 | 18k | 117 | |
| 27 | OpenAI SwarmOpenAI's experimental, educational framework for lightweight multi-agent handoffs — superseded by the Agents SDK. | 37.6 | 22k | 480 | |
| 28 | GriptapePython framework for secure, structured agent workflows with off-prompt data handling. | 37.5 | 2.6k | 205 | |
| 29 | Atomic AgentsModular, schema-first framework for composing predictable agent pipelines from small parts. | 37.4 | 6.3k | 390 | |
| 30 | Guidance~Constrained-generation library that steers model output with grammars and templates instead of free text. | 34.8 | 22k | 20 | |
| 31 | Spring AI AlibabaAlibaba's agentic framework for Java teams, built on top of Spring AI. | 34.6 | 11k | 46 | |
| 32 | Marvin~Prefect's lightweight toolkit for turning LLM calls into typed, reliable Python functions. | 31.4 | 6.2k | 35 | |
| 33 | PraisonAIMulti-agent framework aimed at standing up ready-made agent teams with very little setup. | 27.5 | 9.3k | 21 | |
| 34 | PocketFlow~A 100-line agent framework — the minimal core, with none of the abstraction layers. | 24.7 | 11k | 260 |
Index = market demand (search + AI demand) weighted most heavily, then adoption, real usage, momentum, production-readiness and community. ◇ proprietary / closed-source (no public repo — scored on demand). ~ demand estimated from product-site traffic. Methodology → · All boards →