AltCatalog

Alternatives to LangGraph

Framework for stateful, multi-agent workflows

Alt Score

Alt Score · 100

How this alternative ranks. How it works →

Verified coverage 90%100
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

#1 of 10 in AI agent frameworks

LangGraph ranks #1 of 10 in AI agent frameworks, with an Alt Score of 100. It is licensed under MIT License, open source with paid hosting from $39/seat/month (LangSmith Plus plan, includes LangGraph hosted deployment; usage-based charges apply on top) and available on Linux, macOS, Windows and Web. 13 of 13 checklist rows are verified against a public source.

LangGraph is a low-level orchestration framework (by LangChain) for building stateful, multi-agent applications as graphs.

Most compared with LlamaIndexCrewAIHaystack
Official site Suggest an edit Data history Work on LangGraph? Claim this page
Who it's for

Python and JS/TS developers building complex, long-running, or multi-agent LLM applications who need low-level control over orchestration rather than a high-level black-box agent loop.

What you get

An open-source (MIT-licensed) orchestration framework and runtime that models agents as stateful graphs, with built-in durable execution, checkpointed persistence, human-in-the-loop interrupts, streaming, and memory; a managed hosted deployment option (LangSmith Deployment, formerly LangGraph Platform) plus a Studio IDE are available as paid add-ons for production use.

How it works

Developers define agent logic as nodes (functions that call models or tools) connected by edges that route execution based on shared state, using LangGraph's StateGraph API; the runtime executes the graph step by step, checkpointing state after each step so agents can pause for human review, resume after failures, or persist context across long-running sessions.

Where LangGraph stands out

Verified capabilities most alternatives don't have.

Language (JS/TS) only 3 of 9 apps

See the full checklist

Why people leave LangGraph

Dashed reasons are sourced facts; the rest are opinions. Vendors can dispute.

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Ranked alternatives

Ordered by Alt Score. Click any score to see the breakdown.

Sponsored Paid slot. Never affects the ranked order below. Promote here →
01

LlamaIndex is a data framework for building LLM applications and agent workflows over your own data (RAG + agents).

MIT License
Alt Score

Alt Score · 96

How this alternative ranks. How it works →

Verified coverage 90%96
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

02

CrewAI is a Python framework for orchestrating role-playing, autonomous AI agents that collaborate as a crew.

MIT LinuxmacOSWindowsWeb
Alt Score

Alt Score · 93

How this alternative ranks. How it works →

Verified coverage 90%92
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

03

Haystack (by deepset) is an open-source framework for building production LLM applications, RAG pipelines and agents.

Apache-2.0
Alt Score

Alt Score · 93

How this alternative ranks. How it works →

Verified coverage 90%92
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

04

Mastra is an open-source TypeScript framework for building AI agents, workflows and RAG, from the team behind Gatsby.

Apache License 2.0
Alt Score

Alt Score · 93

How this alternative ranks. How it works →

Verified coverage 90%92
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

05

Agno (formerly Phidata) is a full-stack Python framework for building multi-agent systems with memory, knowledge and tools.

Apache-2.0
Alt Score

Alt Score · 86

How this alternative ranks. How it works →

Verified coverage 90%85
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

06

AutoGen is an open-source Microsoft framework for building multi-agent applications with conversable, collaborating agents.

MIT LinuxmacOSWindows
Alt Score

Alt Score · 86

How this alternative ranks. How it works →

Verified coverage 90%85
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

07

Semantic Kernel is a Microsoft open-source SDK for integrating LLMs and building AI agents in C#, Python and Java.

MIT LinuxmacOSWindows
Alt Score

Alt Score · 86

How this alternative ranks. How it works →

Verified coverage 90%85
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

08
O

The OpenAI Agents SDK is a lightweight, provider-agnostic framework for building multi-agent workflows with handoffs and guardrails.

MIT
Alt Score

Alt Score · 83

How this alternative ranks. How it works →

Verified coverage 90%81
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

09

Pydantic AI is a Python agent framework that brings type-safe, structured outputs and dependency injection to LLM apps.

MIT
Alt Score

Alt Score · 79

How this alternative ranks. How it works →

Verified coverage 90%77
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

Feature comparison

Rows come from the AI agent frameworks checklist (17 rows). Human-verified cells only. ? means the value has not been verified.

Comparing LangGraph LlamaIndex × CrewAI × Haystack × Mastra × Agno ×
+ Add app
AutoGen OpenAI Agents SDK Pydantic AI Semantic Kernel
AI agent frameworks checklist LangGraphLlamaIndexCrewAIHaystackMastraAgno
Pricing model
Starts at
License
Platforms
Open source
Language (Python)
Language (JS/TS)
Multi-agent orchestration
Graph / stateful workflows
Human-in-the-loop
Streaming support
Built-in memory / state persistence
Tool / function calling
Model-agnostic (multi-provider)
Observability / tracing integration
Managed / hosted deployment
RAG support
verified pending unknown (?) Click any cell to view its source or propose a value
Sources & verification 18

Every fact and feature listed for LangGraph is verified against its own pages. Each alternative is sourced on its own page.

FAQ

Yes. AutoGen, Semantic Kernel and OpenAI Agents SDK have a free tier or are fully free. Free-tier limits in the comparison table are verified and dated.

LlamaIndex, CrewAI and Haystack — every license claim links its source.