HTTP/2 200
date: Thu, 24 Jul 2025 20:34:27 GMT
content-type: text/html; charset=utf-8
vary: X-PJAX, X-PJAX-Container, Turbo-Visit, Turbo-Frame, X-Requested-With,Accept-Encoding, Accept, X-Requested-With
etag: W/"fb84b1f9686ff49299bb44012621b999"
cache-control: max-age=0, private, must-revalidate
strict-transport-security: max-age=31536000; includeSubdomains; preload
x-frame-options: deny
x-content-type-options: nosniff
x-xss-protection: 0
referrer-policy: origin-when-cross-origin, strict-origin-when-cross-origin
content-security-policy: default-src 'none'; base-uri 'self'; child-src github.githubassets.com github.com/assets-cdn/worker/ github.com/assets/ gist.github.com/assets-cdn/worker/; connect-src 'self' uploads.github.com www.githubstatus.com collector.github.com raw.githubusercontent.com api.github.com github-cloud.s3.amazonaws.com github-production-repository-file-5c1aeb.s3.amazonaws.com github-production-upload-manifest-file-7fdce7.s3.amazonaws.com github-production-user-asset-6210df.s3.amazonaws.com *.rel.tunnels.api.visualstudio.com wss://*.rel.tunnels.api.visualstudio.com objects-origin.githubusercontent.com copilot-proxy.githubusercontent.com proxy.individual.githubcopilot.com proxy.business.githubcopilot.com proxy.enterprise.githubcopilot.com *.actions.githubusercontent.com wss://*.actions.githubusercontent.com productionresultssa0.blob.core.windows.net/ productionresultssa1.blob.core.windows.net/ productionresultssa2.blob.core.windows.net/ productionresultssa3.blob.core.windows.net/ productionresultssa4.blob.core.windows.net/ productionresultssa5.blob.core.windows.net/ productionresultssa6.blob.core.windows.net/ productionresultssa7.blob.core.windows.net/ productionresultssa8.blob.core.windows.net/ productionresultssa9.blob.core.windows.net/ productionresultssa10.blob.core.windows.net/ productionresultssa11.blob.core.windows.net/ productionresultssa12.blob.core.windows.net/ productionresultssa13.blob.core.windows.net/ productionresultssa14.blob.core.windows.net/ productionresultssa15.blob.core.windows.net/ productionresultssa16.blob.core.windows.net/ productionresultssa17.blob.core.windows.net/ productionresultssa18.blob.core.windows.net/ productionresultssa19.blob.core.windows.net/ github-production-repository-image-32fea6.s3.amazonaws.com github-production-release-asset-2e65be.s3.amazonaws.com insights.github.com wss://alive.github.com api.githubcopilot.com api.individual.githubcopilot.com api.business.githubcopilot.com api.enterprise.githubcopilot.com; font-src github.githubassets.com; form-action 'self' github.com gist.github.com copilot-workspace.githubnext.com objects-origin.githubusercontent.com; frame-ancestors 'none'; frame-src viewscreen.githubusercontent.com notebooks.githubusercontent.com; img-src 'self' data: blob: github.githubassets.com media.githubusercontent.com camo.githubusercontent.com identicons.github.com avatars.githubusercontent.com private-avatars.githubusercontent.com github-cloud.s3.amazonaws.com objects.githubusercontent.com release-assets.githubusercontent.com secured-user-images.githubusercontent.com/ user-images.githubusercontent.com/ private-user-images.githubusercontent.com opengraph.githubassets.com copilotprodattachments.blob.core.windows.net/github-production-copilot-attachments/ github-production-user-asset-6210df.s3.amazonaws.com customer-stories-feed.github.com spotlights-feed.github.com objects-origin.githubusercontent.com *.githubusercontent.com; manifest-src 'self'; media-src github.com user-images.githubusercontent.com/ secured-user-images.githubusercontent.com/ private-user-images.githubusercontent.com github-production-user-asset-6210df.s3.amazonaws.com gist.github.com; script-src github.githubassets.com; style-src 'unsafe-inline' github.githubassets.com; upgrade-insecure-requests; worker-src github.githubassets.com github.com/assets-cdn/worker/ github.com/assets/ gist.github.com/assets-cdn/worker/
server: github.com
content-encoding: gzip
accept-ranges: bytes
set-cookie: _gh_sess=zUSjHi6pxqwimo2hRZyX%2By0UiDEw%2B089rAMMY%2FfHQ2rsG1vr6hBmAxDjDDHcPrkUahlvmjpTmH1H4WJKl%2BzS0pnYw7%2BMReBZw7s%2FeE%2BPIthtYV4h4g%2BdUk1iDN7LlWUrkC4Ww9JxPGQiqhuszWfrZRg3eBux4813Jdj2O3kT8OjOLg0AygQzKX2tITP%2FwRlQ06bFUZT5alpig3n9TA8YSmvcV5a7Vz5MUmF7%2BaBABWSBaqcFfIGBgzttbFK8V4%2FIlJO%2Bjld1o4ohgvMD%2B3GL8A%3D%3D--hYYFU4GzD2diwyMC--FKxv%2B75QGGaHPW74EBw78A%3D%3D; Path=/; HttpOnly; Secure; SameSite=Lax
set-cookie: _octo=GH1.1.69953609.1753389267; Path=/; Domain=github.com; Expires=Fri, 24 Jul 2026 20:34:27 GMT; Secure; SameSite=Lax
set-cookie: logged_in=no; Path=/; Domain=github.com; Expires=Fri, 24 Jul 2026 20:34:27 GMT; HttpOnly; Secure; SameSite=Lax
x-github-request-id: A8C8:63E3F:5455A:71D62:688298D3
LangChain · GitHub
Build context-aware, reasoning applications with LangChain’s flexible abstractions and AI-first toolkits.
Core OSS libraries:
Products:
LangSmith
- platform for building and monitoring production-grade LLM applications
LangGraph Platform
- infrastructure for deploying LangGraph agents
OSS extensions and apps:
ChatLangChain
and ChatLangChain.js
- chatbot for answering questions about LangChain's open source libraries
Open Canvas
- document & chat-based UX for writing code or markdown. Inspired by OpenAI's Canvas (TypeScript)
OpenGPTs
- open source version of OpenAI's GPTs API (Python)
Email assistant
- AI assistant that helps you maintain your emails (Python)
LangChain + Next.js template
- template LangChain.js + Next.js application
Social media agent
- agent for sourcing, curating, and scheduling social media posts with human-in-the-loop (TypeScript)
Agent Protocol
- Agent Protocol is our attempt at codifying the framework-agnostic APIs that are needed to serve LLM agents in production
Popular repositories
Loading
🦜🔗 Build context-aware reasoning applications
Jupyter Notebook
112k
18.3k
Build resilient language agents as graphs.
Python
16.2k
2.8k
🦜🔗 Build context-aware reasoning applications 🦜🔗
TypeScript
15.2k
2.6k
Fully local web research and report writing assistant
Python
7.9k
803
Repositories
Showing 10 of 207 repositories
langchain
Public
🦜🔗 Build context-aware reasoning applications
langchain-ai/langchain’s past year of commit activity
langchain-ai/langsmith-sdk’s past year of commit activity
langchain-ai/langsmith-docs’s past year of commit activity
JavaScript
138
MIT
70
60
13
Updated Jul 24, 2025
langchain-ai/open-swe’s past year of commit activity
TypeScript
79
MIT
17
25
15
Updated Jul 24, 2025
langgraph
Public
Build resilient language agents as graphs.
langchain-ai/langgraph’s past year of commit activity
langchain-ai/text2sql-agent’s past year of commit activity
Python
1
MIT
1
0
1
Updated Jul 24, 2025
langchainjs
Public
🦜🔗 Build context-aware reasoning applications 🦜🔗
langchain-ai/langchainjs’s past year of commit activity
agentevals
Public
Readymade evaluators for agent trajectories
langchain-ai/agentevals’s past year of commit activity
Python
274
MIT
21
5
2
Updated Jul 24, 2025
helm
Public
Repository hosting Langchain helm charts.
langchain-ai/helm’s past year of commit activity
Shell
63
Apache-2.0
25
3
3
Updated Jul 24, 2025
langgraphjs
Public
Framework to build resilient language agents as graphs.
langchain-ai/langgraphjs’s past year of commit activity
You can’t perform that action at this time.