FrameworkActive

langchain

LangChain github.com/langchain-ai/langchain

The agent engineering platform.

Explore graph

Updated 10 min ago · first seen 11 Sept 2026

framework_01M294J2BF0BC4CN30RNNA1V1Z

Version: langchain-core==1.6.3; T2 · 15 min ago
Released: 11 Sept 2026; T2 · 15 min ago
License: MIT; T2 · 15 min ago
Stars: 146,135; T2 · 10 min ago

Specification

License: MIT
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 15 min agomedium
Repository: github.com/langchain-ai/langchain
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 15 min agomedium
Created at: 17 Oct 2022
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 15 min agomedium
Default branch: master
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 15 min agomedium
Homepage: https://docs.langchain.com/langchain/
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 15 min agomedium
Kind: framework
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 15 min agomedium
Latest release: 11 Sept 2026
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 15 min agomedium
Latest release tag: langchain-core==1.6.3
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 15 min agomedium
Latest version: langchain-core==1.6.3
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 15 min agomedium
License name: MIT License
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 15 min agomedium
Forks: 24,415
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 10 min agomedium
Releases: 1,355
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 10 min agomedium
Stars: 146,135
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 10 min agomedium
Tags: 1,360
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 10 min agomedium
Watchers: 919
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 10 min agomedium
PyPI: langchain
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 15 min agomedium
Readme url: https://raw.githubusercontent.com/langchain-ai/langchain/HEAD/README.md
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 15 min agomedium
Releases url: https://github.com/langchain-ai/langchain/releases
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 15 min agomedium
Topics: agents, ai, ai-agents, anthropic, chatgpt, deepagents, enterprise, framework, gemini, generative-ai, langchain, langgraph, llm, multiagent, open-source, openai, pydantic, python, rag, typescript
Source:GitHub public repositories (HTML, releases.atom, raw files)T2observed 15 min agomedium

Each value shows its source, tier and observation time. Conflicting claims are kept side by side and flagged — never averaged. How AI Atlas records facts →

Provenance

Attributed facts

Source tiers

T220

Freshest observation

10 min ago

Conflicts

None

As of

Rewind the record: see this entity's attributes exactly as AI Atlas knew them on a given day.

Claim history

21 claims · 20 properties

Licenselicense1

Claim history for License
Value	Valid from → to	Status	Source	Confidence	Extractor
MIT	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Repositoryrepository_url1

Claim history for Repository
Value	Valid from → to	Status	Source	Confidence	Extractor
https://github.com/langchain-ai/langchain	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Created atcreated_at1

Claim history for Created at
Value	Valid from → to	Status	Source	Confidence	Extractor
17 Oct 2022	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Default branchdefault_branch1

Claim history for Default branch
Value	Valid from → to	Status	Source	Confidence	Extractor
master	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Descriptiondescription1

Claim history for Description
Value	Valid from → to	Status	Source	Confidence	Extractor
The agent engineering platform.	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Homepagehomepage1

Claim history for Homepage
Value	Valid from → to	Status	Source	Confidence	Extractor
https://docs.langchain.com/langchain/	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Kindkind1

Claim history for Kind
Value	Valid from → to	Status	Source	Confidence	Extractor
framework	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Latest releaselatest_release_at1

Claim history for Latest release
Value	Valid from → to	Status	Source	Confidence	Extractor
11 Sept 2026	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Latest release taglatest_release_tag1

Claim history for Latest release tag
Value	Valid from → to	Status	Source	Confidence	Extractor
langchain-core==1.6.3	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Latest versionlatest_version1

Claim history for Latest version
Value	Valid from → to	Status	Source	Confidence	Extractor
langchain-core==1.6.3	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

License namelicense_name1

Claim history for License name
Value	Valid from → to	Status	Source	Confidence	Extractor
MIT License	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Forksmetric.forks1

Claim history for Forks
Value	Valid from → to	Status	Source	Confidence	Extractor
24,415	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Releasesmetric.releases1

Claim history for Releases
Value	Valid from → to	Status	Source	Confidence	Extractor
1,355	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Starsmetric.stars2

Claim history for Stars
Value	Valid from → to	Status	Source	Confidence	Extractor
146,135	11 Sept 2026 21:09 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic
146,134	11 Sept 2026 21:04 UTC → 11 Sept 2026 21:09 UTC	superseded	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Tagsmetric.tags1

Claim history for Tags
Value	Valid from → to	Status	Source	Confidence	Extractor
1,360	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Watchersmetric.watchers1

Claim history for Watchers
Value	Valid from → to	Status	Source	Confidence	Extractor
919	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

PyPIpypi1

Claim history for PyPI
Value	Valid from → to	Status	Source	Confidence	Extractor
langchain	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Readme urlreadme_url1

Claim history for Readme url
Value	Valid from → to	Status	Source	Confidence	Extractor
https://raw.githubusercontent.com/langchain-ai/langchain/HEAD/README.md	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Releases urlreleases_url1

Claim history for Releases url
Value	Valid from → to	Status	Source	Confidence	Extractor
https://github.com/langchain-ai/langchain/releases	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Topicstopics1

Claim history for Topics
Value	Valid from → to	Status	Source	Confidence	Extractor
agents, ai, ai-agents, anthropic, chatgpt, deepagents, enterprise, framework, gemini, generative-ai, langchain, langgraph, llm, multiagent, open-source, openai, pydantic, python, rag, typescript	11 Sept 2026 21:04 UTC → current	current	GitHub public repositories (HTML, releases.atom, raw files)T2	medium	deterministic

Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →

Source documents
Source	Document	Type	Tier	Last observed	Snapshots
GitHub public repositories (HTML, releases.atom, raw files)	github.com/langchain-ai/langchain/releases.atom	feed	T2· Quality secondary	10 min ago	1
GitHub public repositories (HTML, releases.atom, raw files)	raw.githubusercontent.com/langchain-ai/langchain/HEAD/README.md	readme	T2· Quality secondary	10 min ago	1
GitHub public repositories (HTML, releases.atom, raw files)	github.com/langchain-ai/langchain	repository	T2· Quality secondary	10 min ago	2

Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.