What is the best framework product?

LangChain is the top-rated framework product with a score of 87/100 on Unfragile.

How many framework products are there?

Unfragile indexes 6 framework products, ranked by real usage data.

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Framework

6 tools · Browse 6 framework AI artifacts on Unfragile.

Avg score: 79/100

6 free

6 open source

1

LangChain

87/100Free

Framework for building LLM apps — chains, agents, RAG, memory. Python & JS/TS. 200+ integrations.

Framework

2

Vercel AI SDK

79/100

Free

TypeScript toolkit for AI web apps — streaming, tool calling, generative UI. Works with 20+ LLM providers.

Framework

3

Model Context Protocol (MCP)

63/100Free

Open protocol for connecting AI to external tools and data — universal interface adopted by Claude, Cursor, and more.

Framework

4

LlamaIndex

83/100Free

Data framework for RAG and agents — 160+ data connectors, vector/keyword/graph indexing, query engines.

Framework

5

AutoGen

80/100Free

Microsoft's multi-agent conversation framework — agents collaborate, execute code, with human-in-the-loop.

Framework

6

CrewAI

79/100Free

Multi-agent orchestration framework — define AI agents with roles, organize into collaborative crews.

Framework

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Agent? One curl.

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