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AI agent framework downloads tracker (updated daily)

PyPI and npm file-request counts for the agent frameworks people actually install. Updated daily. A download is not a user.

Live fetch UTC.

Data licensed CC BY 4.0, please credit AI Agents Info.

Published Updated AI Agents Info Research

Key takeaways

  • Fetched from pypistats and npm on 9 Nov 2026.
  • LangChain logolangchain leads this PyPI set with 155,918,257 downloads from 2026-10-10 through 2026-11-08.
  • ai leads this npm set with 140,196,706 downloads in the same complete window.
  • A download is a file request. These two registries are not one ranking.

Which AI agent framework has the most downloads?

langchain, with 155,918,257 downloads from 10 Oct 2026 through 8 Nov 2026 in the without_mirrors series.

The 30-day column sums the last 30 complete daily rows, 2026-10-10 through 2026-11-08. The related write-up is Which AI agent framework do people install?, which used this same window on November 9, 2026.

LangChainlangchain155,918,25735,271,6894,301,971langchain-ai/langchain
LangGraphlanggraph55,093,57913,876,2171,109,424langchain-ai/langgraph
Strands Agentsstrands-agents37,592,1858,863,289963,158strands-agents/harness-sdk
Claude Agent SDKclaude-agent-sdk33,887,2338,774,136748,665anthropics/claude-agent-sdk-python
Pydantic AI slimpydantic-ai-slim32,785,6818,730,134627,097pydantic/pydantic-ai
OpenAI Agents SDKopenai-agents17,426,9154,509,002326,857openai/openai-agents-python
Google ADKgoogle-adk10,099,2992,564,724240,894google/adk-python
Pydantic AIpydantic-ai6,575,7301,601,738105,808pydantic/pydantic-ai
CrewAIcrewai2,629,769590,72969,994crewAIInc/crewAI
LlamaIndexllama-index2,044,132411,75529,851run-llama/llama_index
smolagentssmolagents597,936175,09816,897huggingface/smolagents
AutoGen AgentChatautogen-agentchat401,015100,31910,576microsoft/autogen
AG2ag2200,79457,4356,028ag2ai/ag2
  • pydantic-ai-slim: The slim distribution that pydantic-ai depends on. Not a second product.
  • autogen-agentchat: The install name printed in the AutoGen README.
  • ag2: The AG2 distribution. Related to, but not the same file as, autogen-agentchat.

What do the npm packages show?

ai, with 140,196,706 downloads over the same complete days. Do not add that figure to a PyPI total.

Vercel AI SDKai140,196,70638,122,0833,650,851vercel/ai
LangGraph JS@langchain/langgraph15,932,1464,059,503399,671langchain-ai/langgraphjs
Mastra@mastra/core9,988,3332,680,402230,615mastra-ai/mastra
OpenAI Agents JS@openai/agents8,171,6951,974,083178,793openai/openai-agents-js
Google ADK JS@google/adk1,085,245312,53529,073google/adk-js
  • ai: The registry describes this as a model-provider toolkit. Apps that never run an agent loop still increment this count.

How have downloads changed over time?

Daily without_mirrors and npm rows from 10 Oct 2026 through 8 Nov 2026 are on this page. Trailing zeros are dropped so an incomplete today is not treated as a real day.

Daily PyPI without_mirrors downloads for the five largest packages in this set05M9M2026-08-112026-11-08
langchainlanggraphstrands-agentsclaude-agent-sdkpydantic-ai-slim
Daily npm downloads for the packages in this set04M8M2026-08-122026-11-09
ai@langchain/langgraph@mastra/core@openai/agents@google/adk

Where do these numbers come from?

Python totals are the sum of daily without_mirrors rows from pypistats.org/api/packages/{name}/overall?mirrors=false. The 7-day and last-day columns prefer pypistats’ recent endpoint when it returns. JavaScript totals use api.npmjs.org/downloads/range. The page revalidates about once a day. If a registry is down, the last successful snapshot stays up and the timestamp says so.

Package names are the distributions people install, not a quality ranking. Best AI agent frameworks is the licence and release table. GitHub stars for the paired repositories are the stars tracker.

FAQ

Which AI agent framework has the most downloads?

langchain has the most PyPI downloads in this set: 155,918,257 from 10 Oct 2026 through 8 Nov 2026, without mirrors. Fetched 9 Nov 2026. A download is a file request, including CI and dependency installs.

What do the npm packages show?

On npm, ai has 140,196,706 downloads over the same complete days. That is a separate registry.

Is a download a user?

No. PyPI’s without_mirrors series and npm’s download counts count package-file requests. CI, mirrors the filter still misses, and one project installing a dependency all land in the same number. Do not add a PyPI total to an npm total.

Where do the AI agent framework download numbers come from?

Python rows sum daily without_mirrors counts from pypistats.org/api/packages/{name}/overall?mirrors=false. JavaScript rows use api.npmjs.org/downloads/range. Trailing days that still read zero are dropped before the 30-day window. Nothing in the table is estimated.

How often is the downloads tracker updated?

The page revalidates about once a day. pypistats and npm often lag by one calendar day, so the latest complete day is the last non-zero row, not necessarily today.

Cite this data

Copy the citation or the HTML. Neither is required to use the figures. Please keep the date and the source.

Citation

AI Agents Info, "AI agent framework downloads tracker (updated daily)", 9 Nov 2026, https://www.aiagentsinfo.com/trackers/downloads

Embed

<blockquote cite="https://www.aiagentsinfo.com/trackers/downloads"><p>langchain had 155,918,257 PyPI downloads from 2026-10-10 through 2026-11-08, without mirrors.</p><footer><a href="https://www.aiagentsinfo.com/trackers/downloads">AI agent framework downloads tracker (updated daily)</a>, AI Agents Info.</footer></blockquote>

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