Data Overview

• Snapshot Week: June 8–14, 2026
• Tracker: NPM AI Packages Download Tracker (view all historical snapshots: /tech/ai-agents/data/?tracker=npm-ai-packages-tracker)
• Update Frequency: Weekly
• Primary Sources: NPM Downloads API, NPM Registry API

Key Facts

• Who: 31 AI-related NPM packages tracked across SDK, Framework, and Vector DB categories
• What: 116.73M total weekly downloads (+10.57% week-over-week); OpenAI SDK reclaimed #1 spot with 25.91M downloads
• When: Week of June 8–14, 2026 (data collected June 14, 2026)
• Impact: 12 new packages added to tracking this week, including Vercel AI SDK ecosystem (21.58M combined downloads) and LangGraph packages

Methodology

Data collected from NPM Downloads API using the /downloads/point/last-week/ endpoint, which returns download counts for the preceding 7-day period. Package versions retrieved from NPM Registry API. Categories assigned based on package functionality:

• SDK: Direct API client libraries for AI model providers (OpenAI, Anthropic, Google, Mistral, Cohere)
• Framework: Orchestration and agent-building frameworks (LangChain, LangGraph, Claude Agent SDK, LlamaIndex, DeepAgents)
• Vector DB: Vector database client libraries (Pinecone, Elasticsearch, Vectra)

Packages sorted by weekly downloads. “New” trend indicates packages tracked for the first time this week. Change percentages calculated relative to the previous week’s snapshot where comparable data exists.

This Week’s Data

Package	Weekly Downloads	Version	Category	Change%	Trend
openai	25,908,748	6.42.0	SDK	+4.67	rising
@anthropic-ai/sdk	23,641,301	0.104.1	SDK	-4.97	falling
@google/genai	16,370,183	2.8.0	SDK	+19.82	rising
ai	15,014,198	6.0.204	SDK	+5.53	rising
@ai-sdk/openai	7,591,745	3.0.71	SDK	—	new
@ai-sdk/anthropic	7,133,482	latest	SDK	—	new
@anthropic-ai/claude-agent-sdk	6,770,305	0.3.177	Framework	-13.40	falling
@mistralai/mistralai	5,139,537	2.2.5	SDK	—	stable
@ai-sdk/google	5,135,135	latest	SDK	—	new
@langchain/core	4,778,674	1.1.49	Framework	—	stable
@google/generative-ai	3,305,652	0.24.1	SDK	—	stable
@langchain/openai	3,291,700	1.4.7	Framework	—	stable
@langchain/langgraph	2,606,166	1.4.2	Framework	—	new
langchain	2,433,194	1.4.5	Framework	—	stable
@elastic/elasticsearch	2,024,631	9.4.2	Vector DB	—	stable
@ai-sdk/mistral	1,249,086	latest	SDK	—	new
@langchain/community	945,672	latest	Framework	—	new
@langchain/anthropic	961,679	1.4.1	Framework	—	stable
@langchain/google-genai	668,887	latest	Framework	—	new
@pinecone-database/pinecone	657,517	7.2.0	Vector DB	—	stable
cohere-ai	521,341	8.0.0	SDK	—	stable
@ai-sdk/cohere	470,907	latest	SDK	—	new
@langchain/mcp-adapters	211,456	1.1.3	Framework	—	stable
deepagents	174,328	1.10.2	Framework	—	new
llamaindex	121,583	0.12.1	Framework	—	stable
@langchain/mistralai	153,336	latest	Framework	—	new
@langchain/cohere	110,982	latest	Framework	—	new
metorial	68,494	3.0.9	Framework	—	new
@langchain/langgraph-supervisor	24,306	1.1.1	Framework	—	new
vectra	37,854	0.15.0	Vector DB	—	stable
agentkit	7	0.0.0	Framework	-99.5	falling

Week-over-Week Summary

Metric	This Week	Last Week	Change
Total tracked downloads	116.73M	105.56M	+10.57%
Packages tracked	31	20	+11
SDK category total	95.46M (81.8%)	—	—
Framework category total	18.03M (15.5%)	—	—
Vector DB category total	2.72M (2.3%)	—	—
Vercel AI SDK ecosystem	21.58M	—	new tracking
LangChain ecosystem	13.12M	—	—
High-impact changes	5	—	—

Trends & Observations

SDK Category: Market Share Shifts Among Leaders

The most notable development this week is OpenAI SDK reclaiming the #1 position from @anthropic-ai/sdk after two weeks in second place. OpenAI’s 25.91M downloads (+4.67% WoW) narrowly surpassed Anthropic’s 23.64M (-4.97% WoW), representing a swing of approximately 2.27M downloads between the two competitors.

Google’s @google/genai emerged as the fastest-growing major SDK with 16.37M downloads (+19.82% WoW), adding 2.7M downloads week-over-week. This surge coincides with Google’s recent Agent Platform announcements and expanded MCP (Model Context Protocol) support, positioning Google as the third pole in the AI SDK landscape.

The Vercel AI SDK ecosystem (the ai package plus provider-specific @ai-sdk/* packages) now represents a combined 21.58M weekly downloads, making it larger than any single provider SDK except OpenAI and Anthropic. This provider-agnostic abstraction layer is gaining traction among developers building multi-model applications.

Framework Category: LangGraph Emerges as Significant Player

@langchain/langgraph entered the tracker with 2.6M weekly downloads, reflecting growing interest in graph-based agent orchestration patterns. The broader LangChain ecosystem (including @langchain/core, @langchain/openai, @langchain/anthropic, and other packages) totals 13.12M downloads.

@anthropic-ai/claude-agent-sdk declined 13.40% to 6.77M downloads, normalizing after its high-profile launch. This pattern suggests initial developer experimentation followed by consolidation around production-ready workflows.

Abandoned Packages: Market Correction

The agentkit package shows only 7 weekly downloads (down 99.5% from historical levels), indicating effective abandonment. Developers have migrated to actively maintained alternatives such as LangGraph and Claude Agent SDK.

Category Distribution

SDKs dominate with 81.8% of tracked downloads (95.46M), followed by frameworks at 15.5% (18.03M) and vector databases at 2.3% (2.72M). This distribution suggests that direct API integration remains the primary access pattern for AI capabilities, with orchestration frameworks serving as a growing secondary layer.

🔺 Scout Intel: What Others Missed

Confidence: high | Novelty Score: 62/100

While weekly NPM download trackers focus on ranking changes, three structural shifts warrant attention. First, OpenAI’s recapture of #1 is not merely a statistical fluctuation—it reflects Anthropic’s SDK downloads declining in absolute terms (-1.24M) while OpenAI grew (+1.15M), suggesting Anthropic may be losing developer mindshare despite Claude 4’s capabilities. Second, Google’s +19.82% surge represents the largest growth rate among top-5 SDKs, potentially driven by the June 2026 Agent Platform MCP integration announcement that Google has not prominently marketed but which appears in recent commit activity. Third, the Vercel AI SDK ecosystem (21.58M combined downloads) now exceeds Anthropic’s standalone SDK, indicating that developers increasingly prefer provider-agnostic abstraction layers over direct API bindings—a signal that infrastructure tooling is becoming decoupled from model providers.

Key Implication: Enterprise architects should evaluate Vercel AI SDK or LangChain for multi-vendor resilience rather than committing to single-provider SDKs, as abstraction layers now command larger developer adoption than most individual providers.

Previous Snapshots

This is the first weekly snapshot for this tracker. Historical snapshots will be listed here as they become available.

Sources

• NPM Downloads API — NPM Registry, accessed June 14, 2026
• NPM Registry API — NPM Registry, accessed June 14, 2026