Catalog Systems Agent frameworks (no first-party memory layer) LangChain (framework)

LangChain (framework)

https://www.langchain.com/

Dominant Python/JS framework for LLM apps — tool calling, agents, retrievers, runnables. Memory is one component (LangMem cross-listed); the framework itself is the product.

Active · Verified 2026-10-27 · fresh as of 2026-10-27 · 24 cited facts, 2 with a third-party source · 1 recorded change · Suggest a correction

At a glance

Type
LLM orchestration framework vendor fix
Tier
T1
Section
Agent frameworks (no first-party memory layer)
Created
2022 repo fix
Latest release
v1.4.7 (2026-10-21) registry fix
License
MIT (OSS framework) vendor fix
GitHub
langchain-ai/langchain — ~149k stars, last commit 2026-10 repo fix
Pricing
searched not found fix
Funding
LangChain Inc raised $25M Series A 2024-02 (Sequoia led; $200M valuation rumored); ~$110M total per later rounds 2024-2025. vendor fix
Freshness
2026-10-27 fix
Layer
agent-infra repo fix
Licensing
open-source vendor fix
Deployment locus
local repo fix
Platform vs product
platform repo fix
Maturity
ga vendor fix
SDK languages
python, typescript repo fix
Protocols
mcp-client vendor fix
Developer activity
OpenRank 59.23 (12-mo avg 72) · 381 participants — 2026-09 third-party fix
Maintainer health
24 issues in 90 days, 88% answered or closed · 100 releases in 12 months (latest 2026-10-29) · bus factor 5 — as of 2026-11-01 repo

When to use

Optimised for: searched not found

Anti-fit: searched not found

Pros & cons

Pros

searched not found

Cons

searched not found

Claims & capabilities

$100M Series B at $1.1B (Feb 2025, IVP led); LangSmith eval/observability is the commercial wedge.

Technical surface

API surface
searched not found
Backend storage
not applicable — not a memory product
Deployment
Both (self-hosted + managed cloud) — OSS library; agents deploy to LangSmith Deployment (cloud, hybrid or self-hosted)
Embedding model
not applicable — not a memory product
Multi-tenancy
searched not found
MCP
yes — MCP client tools via MCPAdapter in langchain.mcp (langchain[mcp] 1.4+, beta; successor to langchain-mcp-adapters)
A2A
searched not found
OpenTelemetry
searched not found

Compare LangChain (framework) with…

Alternatives to LangChain (framework) → live options ranked by shared design, licence, hosting and MCP support

Similar systems

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    Anthropic-introduced open protocol (Nov 2024) for connecting LLMs to data sources and tools. Donated by Anthropic to the Linux Foundation's Agentic AI Foundation (announced 2025-12-09); now governed as Model Context Protocol, a Series of LF Projects, LLC. Supported across Claude, ChatGPT, VS Code, Cursor and many other clients.

  • Vercel AI SDK T1

    Vercel's TypeScript LLM SDK — streaming, tool calls, structured outputs, agents. Dominant framework for Next.js LLM apps.

  • LlamaIndex (framework) T1

    Data framework for LLM apps — connectors, indices, query engines, agents, workflows. Memory is one of many subsystems (LlamaIndex Memory cross-listed).

  • OpenAI Agents SDK T1

    OpenAI's official Python framework for agents — handoffs, guardrails, tracing built in. Successor to OpenAI Swarm (experimental); officially supported.

  • LangGraph (orchestration) T1

    LangChain's stateful graph runtime for agents — explicit state, persistence, time-travel debugging, human-in-the-loop. Memory is one persistence target (LangGraph Persistence cross-listed).

  • CrewAI T1

    Multi-agent framework — Crews (sequential) + Flows (event-driven). Open-source core + CrewAI Enterprise. Memory available via Mem0 / Letta adapters (CrewAI Memory cross-listed).

Sources (23 cited facts, 2 third-party)

Each fact links to the page it came from; the badge says who published it (how to read sources).

What changed

Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)

  1. 2026-10-27
    • Latest release first recorded as “v1.4.7 (2026-10-21)” source
    • Deployment first recorded as “Both (self-hosted + managed cloud) — OSS library; agents deploy to LangSmith Deployment (cloud, hybrid or self-hosted)” source
    • MCP support first recorded as “yes — MCP client tools via MCPAdapter in langchain.mcp (langchain[mcp] 1.4+, beta; successor to langchain-mcp-adapters)” source
    #270

Related systems

References (65)

  • Activeloop Deep Lake integrates with — LangChain's all-providers integrations page lists DeepLake: "Vector database for deep learning applications". (verified 2026-10-29)
  • Alibaba Qwen 3 family integrates with — LangChain docs have a Qwen chat model integration page. (verified 2026-10-29)
  • Amazon Neptune Analytics integrates with — LangChain docs have an Amazon Neptune openCypher graph integration page. (verified 2026-10-29)
  • Amazon Nova family integrates with — LangChain docs have an Amazon Nova chat model integration page. (verified 2026-10-29)
  • Anchor (Anchor Browser) integrates with — LangChain's all-providers integrations page lists Anchor Browser: "Browser automation and web scraping tools". (verified 2026-10-29)
  • Anthropic Claude (foundation models) integrates with — LangChain docs have an Anthropic integration provider page (Claude models for advanced reasoning and conversation). (verified 2026-10-29)
  • AWS SageMaker integrates with — LangChain docs have a SageMaker endpoint LLM integration page. (verified 2026-10-29)
  • Baseten integrates with — LangChain docs have a Baseten integration provider page (ML model deployment and serving platform). (verified 2026-10-29)
  • Bedrock AgentCore (AWS) integrates with — LangChain docs have a Bedrock AgentCore Browser tool integration page. (verified 2026-10-29)
  • Browser Use integrates with — LangChain docs have a Browser Use integration provider page (Browser agents and cloud browsers for AI applications). (verified 2026-10-29)
  • Browserbase integrates with — LangChain docs have a Browserbase integration provider page (Headless browser automation platform). (verified 2026-10-29)
  • Chroma integrates with — LangChain docs have a Chroma integration provider page (Open-source embedding database for AI apps). (verified 2026-10-29)
  • Cognee integrates with — LangChain's all-providers integrations page lists Cognee: "Memory layer for AI applications and agents". (verified 2026-10-29)
  • Cohere Command R+ / Command A integrates with — LangChain docs have a Cohere integration provider page (Language AI platform for enterprise applications). (verified 2026-10-29)
  • Cohere Embed integrates with — LangChain docs have a Cohere embeddings integration page (CohereEmbeddings). (verified 2026-10-29)
  • Composio integrates with — LangChain docs have a Composio tools integration page. (verified 2026-10-29)
  • Confident AI / DeepEval integrates with — LangChain's all-providers integrations page lists Confident AI: "Confident AI is an LLM observability platform. `confident-trace` traces LangChain runs through the callback system and exports them over OpenTelemetry". (verified 2026-10-29)
  • Databricks Vector Search (now Databricks AI Search) integrates with — LangChain docs have a Databricks Vector Search vector store integration page. (verified 2026-10-29)
  • Daytona integrates with — LangChain docs have a Daytona integration provider page (Secure and elastic infrastructure for running your AI-generated code). (verified 2026-10-29)
  • DeepSeek R1 / V3 family integrates with — LangChain docs have a DeepSeek integration provider page (Advanced reasoning and coding AI models). (verified 2026-10-29)
  • Diffbot integrates with — LangChain's all-providers integrations page lists Diffbot: "Structured web knowledge for developers and LLM applications". (verified 2026-10-29)
  • e2b integrates with — LangChain's all-providers integrations page lists E2B: "Cloud sandboxes for running AI-generated code". (verified 2026-10-29)
  • Elasticsearch integrates with — LangChain docs have an Elasticsearch integration provider page (Distributed search and analytics engine). (verified 2026-10-29)
  • FalkorDB integrates with — LangChain's all-providers integrations page lists FalkorDB: "Graph database with ultra-low latency". (verified 2026-10-29)
  • Fireworks AI integrates with — LangChain docs have a Fireworks integration provider page (Fast inference for open and proprietary language models). (verified 2026-10-29)
  • Google Gemini 3 family integrates with — LangChain docs have a Google provider page covering Gemini chat models (langchain-google-genai). (verified 2026-10-29)
  • Helicone integrates with — LangChain docs have a Helicone integration provider page (LLM observability and monitoring platform). (verified 2026-10-29)
  • Hindsight (Vectorize) integrates with — LangChain's all-providers integrations page lists Hindsight: "Open-source long-term memory engine for AI agents". (verified 2026-10-29)
  • Hyperbrowser integrates with — LangChain's all-providers integrations page lists HyperBrowser: "Web automation and scraping platform". (verified 2026-10-29)
  • Jamba (AI21 Labs) integrates with — LangChain docs have an AI21 integration provider page (AI21 Labs' Jurassic models for text generation). (verified 2026-10-29)
  • Kuzu integrates with — LangChain docs have a Kuzu integration provider page (Embedded graph database management system). (verified 2026-10-29)
  • Langfuse integrates with — LangChain docs have a LangFuse integration provider page (LLM engineering platform and observability). (verified 2026-10-29)
  • LangSmith integrates with — LangChain docs have a LangSmith sandbox integration page. (verified 2026-10-29)
  • LiteLLM integrates with — LangChain docs have a LiteLLM integration provider page (Unified interface for 100+ LLM APIs). (verified 2026-10-29)
  • Memgraph integrates with — LangChain docs have a Memgraph integration provider page (Real-time graph database platform). (verified 2026-10-29)
  • Milvus integrates with — LangChain docs have a Milvus integration provider page (Open-source vector database for AI applications). (verified 2026-10-29)
  • Mistral Embed integrates with — LangChain docs have a MistralAI embeddings integration page (MistralAIEmbeddings). (verified 2026-10-29)
  • Mistral Large 2 / Mixtral family integrates with — LangChain docs have a MistralAI integration provider page (Efficient open-source language models). (verified 2026-10-29)
  • MLflow integrates with — LangChain docs have an MLflow Tracking integration provider page (Experiment tracking and model registry). (verified 2026-10-29)
  • Modal integrates with — LangChain docs have a Modal integration provider page (Serverless cloud computing for data science). (verified 2026-10-29)
  • MongoDB Atlas Vector Search integrates with — LangChain docs have a MongoDB integration provider page (Document-based NoSQL database platform). (verified 2026-10-29)
  • Neo4j integrates with — LangChain docs have a Neo4j integration provider page (Native graph database and analytics platform). (verified 2026-10-29)
  • Nomic Embed integrates with — LangChain's all-providers integrations page lists Nomic: "Open-source embedding models and tools". (verified 2026-10-29)
  • OpenAI Embeddings integrates with — LangChain docs have an OpenAI embeddings integration page (OpenAIEmbeddings). (verified 2026-10-29)
  • OpenAI GPT family (GPT-5 / GPT-4o / o3 / o4) integrates with — LangChain docs have an OpenAI integration provider page (GPT models and comprehensive AI platform). (verified 2026-10-29)
  • OpenInference integrates with — LangChain docs have an OpenInference integration provider page (OpenTelemetry instrumentation that records LangChain and LangGraph operations using OpenInference semantic conventions). (verified 2026-10-29)
  • OpenRouter integrates with — LangChain docs have an OpenRouter integration provider page (Unified API for models from multiple providers). (verified 2026-10-29)
  • pgvector integrates with — LangChain docs have a PGVector vector store integration page (langchain-postgres). (verified 2026-10-29)
  • Pinecone integrates with — LangChain docs have a Pinecone integration provider page (Managed vector database for ML applications). (verified 2026-10-29)
  • Portkey AI integrates with — LangChain docs have a Portkey integration provider page (AI gateway and observability platform). (verified 2026-10-29)
  • Qdrant integrates with — LangChain docs have a Qdrant integration provider page (Vector similarity search engine). (verified 2026-10-29)
  • Replicate integrates with — LangChain docs have a Replicate integration provider page (Cloud platform for running ML models). (verified 2026-10-29)
  • RunPod integrates with — LangChain's all-providers integrations page lists Runpod: "GPU cloud platform for AI workloads". (verified 2026-10-29)
  • Sentence Transformers integrates with — LangChain docs have a Sentence Transformers embeddings integration page. (verified 2026-10-29)
  • Stagehand integrates with — LangChain docs have a Stagehand browser tool integration page. (verified 2026-10-29)
  • Stardog integrates with — LangChain's all-providers integrations page lists Stardog: "Enterprise knowledge graph platform". (verified 2026-10-29)
  • SuperLocalMemory integrates with — LangChain's all-providers integrations page lists SuperLocalMemory: "Local-first chat message history stored in SQLite with no cloud dependencies". (verified 2026-10-29)
  • Together AI integrates with — LangChain docs have a Together integration provider page (Fast inference for open-source models). (verified 2026-10-29)
  • TruLens integrates with — LangChain docs have a TrueLens integration provider page (Evaluation framework for LLM applications). (verified 2026-10-29)
  • Turbopuffer integrates with — LangChain docs have a turbopuffer vector store integration page. (verified 2026-10-29)
  • Typesense integrates with — LangChain's all-providers integrations page lists TypesenseVectorStore: "Vector store integration for Typesense with vector and hybrid search, metadata filtering, scoring, MMR, and sync & async APIs". (verified 2026-10-29)
  • vLLM integrates with — LangChain docs have a vLLM chat model integration page. (verified 2026-10-29)
  • Voyage AI (MongoDB) integrates with — LangChain docs have a VoyageAI by MongoDB integration provider page (Embedding models and semantic search). (verified 2026-10-29)
  • Weaviate integrates with — LangChain docs have a Weaviate integration provider page (Open-source vector database with GraphQL). (verified 2026-10-29)
  • xAI Grok 4 integrates with — LangChain docs have a XAI integration provider page (xAI's Grok models for conversational AI). (verified 2026-10-29)

Referenced by (66)

  • AgentOps integrates with — AgentOps docs have a LangChain (framework) integration page. (verified 2026-10-29)
  • ArangoDB integrates with — ArangoGraphML for ML pipelines; LangChain integration.
  • Arcade.dev integrates with — Arcade docs have a LangChain (framework) integration page. (verified 2026-10-29)
  • Arize Phoenix integrates with — Arize Phoenix docs have a LangChain (framework) integration page. (verified 2026-10-29)
  • Auth0 for AI Agents integrates with — Auth0 for AI Agents docs have a LangChain SDK page. (verified 2026-10-29)
  • AutoGen / AG2 integrates with — Microsoft AutoGen autogen-ext ships a LangChain tool adapter (autogen_ext.tools.langchain). (verified 2026-10-29)
  • AWS Bedrock AgentCore Memory integrates with — Native integrations with LangChain/LangGraph and Strands.
  • Bifrost (Maxim AI) integrates with — Bifrost SDK integrations include a drop-in proxy page for the LangChain SDK. (verified 2026-10-29)
  • Braintrust integrates with — Braintrust docs have a LangChain (framework) integration page. (verified 2026-10-29)
  • Browserbase integrates with — Browserbase docs have a LangChain (framework) integration page. (verified 2026-10-29)
  • Chroma integrates with — Chroma's docs have a LangChain (framework) integration page. (verified 2026-10-29)
  • Cohere Command R+ / Command A integrates with — Cohere docs: "Cohere Chat on LangChain (Integration Guide)". (verified 2026-10-29)
  • Cohere Embed integrates with — Cohere docs "Integrating Embedding Models with Other Tools": LangChain (Cohere Embed on LangChain) and Cohere guide. (verified 2026-10-29)
  • Comet ML integrates with — Comet's Opik docs have a LangChain (framework) integration page. (verified 2026-10-29)
  • Composio integrates with — Composio's SDKs and frameworks page lists a LangChain (framework) provider. (verified 2026-10-29)
  • CrewAI integrates with — CrewAI docs have a LangChain tool adapter page. (verified 2026-10-29)
  • Datadog Agent Observability (LLM Observability) integrates with — Datadog LLM Observability auto-instrumentation page lists a LangChain LLM integration. (verified 2026-10-29)
  • Daytona integrates with — Daytona docs have a guide for running LangChain (framework) with Daytona sandboxes. (verified 2026-10-29)
  • Dgraph integrates with — Google Gen AI Toolbox integration; LangChain agent orchestration.
  • Elasticsearch integrates with — Elastic Search Labs has a LangChain (framework) integration page. (verified 2026-10-29)
  • Fireworks AI integrates with — Fireworks AI docs integration: LangChain. (verified 2026-10-29)
  • Flowise Memory integrates with · depends on at runtime — Was a visual LangChain canvas with LangChain-native memory nodes (Buffer, Buffer Window, Conversation Summary Buffer) backed by an internal chat_message DB table
  • Galileo integrates with — Galileo's third-party integrations docs list LangChain (framework) as a supported integration. (verified 2026-10-29)
  • Google Cloud Model Armor integrates with — Google Cloud Model Armor docs have an "Integrate with LangChain" page. (verified 2026-10-29)
  • Guardrails AI integrates with — Guardrails AI docs have a LangChain integration page. (verified 2026-10-29)
  • Helicone integrates with — Helicone docs have a LangChain (framework) integration page. (verified 2026-10-29)
  • HoneyHive integrates with — HoneyHive integrations docs have a LangChain tracing/integration page. (verified 2026-10-29)
  • IBM ContextForge MCP Gateway integrates with — IBM ContextForge docs have a LangChain integration page. (verified 2026-10-29)
  • Inspect AI integrates with — Inspect AI "Agent Bridge" page documents bridging LangChain agents into Inspect evaluations. (verified 2026-10-29)
  • Laminar integrates with — Laminar integrations docs have a LangChain and LangGraph observability page. (verified 2026-10-29)
  • LanceDB integrates with — LanceDB's docs have a LangChain (framework) integration page. (verified 2026-10-29)
  • Langflow integrates with — Langflow components bundle: LangChain bundle components. (verified 2026-10-29)
  • Langfuse integrates with — Langfuse's integrations directory has a LangChain (framework) integration page. (verified 2026-10-29)
  • LangMem (LangChain) depends on at runtime — adjacent-infrastructure cell: requires LangChain / LangGraph; BYO LLM + store
  • LangSmith integrates with · depends on at runtime — Best integration with the LangChain / LangGraph stack — debug memory + chain + agent in one trace
  • LiveKit Agents integrates with — LiveKit Agents docs have a LangChain (framework) model plugin page. (verified 2026-10-29)
  • LlamaIndex (framework) integrates with — LlamaIndex has an official LLM integration package llama-index-llms-langchain in its repo. (verified 2026-10-29)
  • Mem0 integrates with — Mem0 docs have a LangChain Integration integration page (Build personalized AI agents using LangChain for conversation flow and Mem0 for long-term memory retention). (verified 2026-10-29)
  • Memgraph integrates with — Memgraph 3.0 adds native vector search alongside graph traversal. LangChain toolkit.
  • Milvus integrates with — Milvus's integrations overview lists a Milvus + LangChain (framework) integration tutorial. (verified 2026-10-29)
  • MongoDB Atlas Vector Search integrates with — MongoDB's Atlas AI Integrations page lists LangChain (framework) as an integration (some entries are marked community-maintained). (verified 2026-10-29)
  • n8n (AI agent flows) integrates with — n8n docs: n8n's advanced-AI nodes are its implementation of LangChain. (verified 2026-10-29)
  • Neo4j integrates with — Neo4j's GenAI ecosystem docs have a LangChain (framework) integration page. (verified 2026-10-29)
  • NVIDIA NeMo Guardrails integrates with — NeMo Guardrails docs have a LangChain integration page. (verified 2026-10-29)
  • OpenInference integrates with — The OpenInference repo README lists an OpenInference instrumentation package for LangChain (framework). (verified 2026-10-29)
  • OpenLLMetry (Traceloop) integrates with — OpenLLMetry's What's Supported page lists LangChain (framework) as instrumented out of the box. (verified 2026-10-29)
  • OpenRouter integrates with — OpenRouter docs have a community guide on using OpenRouter with LangChain. (verified 2026-10-29)
  • Paragon ActionKit integrates with — Paragon "ActionKit for Tool Calling" page has a LangGraph / LangChain section. (verified 2026-10-29)
  • pgvector integrates with · depends on at runtime — Used as agent conversation memory via LangChain + MCP.
  • Phidata (now Agno) integrates with — Agno ships a langchaindb vector DB integration module (agno.vectordb.langchaindb). (verified 2026-10-29)
  • Pinecone integrates with — Pinecone's integrations directory has a LangChain (framework) integration page. (verified 2026-10-29)
  • Portkey AI integrates with — Portkey docs have a Langchain Agents agent framework integration page. (verified 2026-10-29)
  • Pydantic-AI integrates with — Pydantic AI third-party tools docs cover using LangChain tools and toolsets. (verified 2026-10-29)
  • Pydantic Logfire integrates with — Pydantic Logfire integrations docs have a LangChain page. (verified 2026-10-29)
  • Qdrant integrates with — Qdrant's documentation has a LangChain (framework) integration page. (verified 2026-10-29)
  • Restate integrates with — Restate AI docs integration page: Restate & LangChain. (verified 2026-10-29)
  • smolagents (Hugging Face) integrates with — smolagents tools tutorial covers using LangChain tools. (verified 2026-10-29)
  • Stagehand integrates with — Stagehand docs have a LangChain (framework) integration page. (verified 2026-10-29)
  • Steamship depends on at runtime — adjacent-infrastructure cell: LangChain (deep integration); Heroku-style PaaS heritage; YC alumni network
  • Supabase Vector integrates with — Supabase's AI & Vectors docs have a LangChain (framework) integration page. (verified 2026-10-29)
  • Together AI integrates with — Together AI docs third-party/agent integrations: LangChain (langchain-together package). (verified 2026-10-29)
  • TrueFoundry AI Gateway integrates with — TrueFoundry AI Gateway ecosystem lists a LangChain integration page. (verified 2026-10-29)
  • Vercel AI Gateway integrates with — Vercel AI Gateway docs have a LangChain framework integration page. (verified 2026-10-29)
  • Vercel AI SDK integrates with — AI SDK docs have a LangChain adapter page. (verified 2026-10-29)
  • Weaviate integrates with — Weaviate's integrations / model-provider docs list LangChain (framework) as an integration. (verified 2026-10-29)
  • Weights & Biases integrates with — W&B Weave docs have a LangChain (framework) integration page. (verified 2026-10-29)