{
  "schemaVersion": "1.0",
  "slug": "langchain",
  "title": "LangChain",
  "kind": "github_project",
  "summary": "Framework for LLM applications with retrieval, tools, and agent primitives.",
  "sourceUrl": "https://github.com/langchain-ai/langchain",
  "agentAccess": "approved",
  "license": {
    "spdx": "MIT",
    "allowsClosedSourceUse": true,
    "requiresNotice": true,
    "noLicenseFee": true
  },
  "install": {
    "steps": [
      "Read the quickstart and license.",
      "Build a minimal local example.",
      "Add production data, accounts, or tools only after review."
    ]
  },
  "outputs": [
    "library API",
    "agent workflow",
    "example application"
  ],
  "usage": {
    "whyUse": "Use it when a project needs broad LLM application building blocks and integrations and the team wants inspectable provenance before adoption.",
    "whenToUse": [
      "You need broad LLM application building blocks and integrations.",
      "The upstream README and license fit the target project.",
      "You can test the integration on non-production data first."
    ],
    "whenNotToUse": [
      "A smaller dependency is enough.",
      "The project overlaps with an existing framework in the same codebase."
    ],
    "safetyNotes": [
      "Keep required license notices when redistributing copied source or bundled code.",
      "Start with read-only examples.",
      "Add tests around tool calls, retrieval, and irreversible actions."
    ]
  },
  "repository": {
    "owner": "langchain-ai",
    "name": "langchain",
    "stars": 140307,
    "defaultBranch": "master"
  },
  "lifecycle": {
    "githubUpdatedAt": "2026-06-27T05:22:33Z",
    "githubPushedAt": "2026-06-26T21:28:59Z",
    "lastVerifiedAt": "2026-06-27T00:00:00.000Z"
  }
}