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DirJournal Editorial Verdict

LangChain is listed on DirJournal under AI Developer Tools in San Francisco, California, United States.

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Editorial Verification

Full Audit Transparency Report

  • 200 OK StatusVerified

    Primary website is live, secure (HTTPS), and free of malware.

  • Domain AgeVerified

    Real-world domain age (≥1 yr, verified via the Wayback Machine) OR pre-migration legacy ID OR ≥2 years of platform tenure. Survival across multiple search-engine update cycles is itself a trust signal.

  • Schema ValidationVerified

    Valid Organization / ProfessionalService JSON-LD emitted on every page load — checked at render time.

  • Citation ClarityPending Manual Review

    Verified outbound links to at least two authoritative sources (social profiles, sameAs URLs).

  • Operational HistoryVerified

    Minimum 12-month active history in the claimed industry — derived from the business's founding year, Wayback-verified domain age, or listing tenure (any one signal passes).

  • Entity RegistrationPending Manual Review

    Cross-referenced with official state or country business registries.

  • Physical FootprintData Incomplete

    Verified non-virtual presence via Google Maps or official lease documentation.

    Complete in Dashboard

  • Active LeadershipData Incomplete

    Confirmation of key team members and executive roles.

    Complete in Dashboard

  • NAP ConsistencyData Incomplete

    Verified match of Name, Address, and Phone data across platforms.

    Complete in Dashboard

  • Professional LicensingPending Manual Review

    Verification of required industry-specific certifications or licenses.

  • Sentiment AuditPending Manual Review

    Manual review of third-party reputation signals (BBB, Trustpilot, etc.).

  • Editorial DiscretionPending Manual Review

    Final human review to ensure the business provides genuine value.

This entity has not yet undergone the 12-Point Manual Editorial Audit. The 5 Verified points above are objective system checks this listing already passes; the remaining 7 are manual editorial reviews that still need a human auditor's sign-off.

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About

LangChain

LangChain is the worlds most popular framework for building LLM-powered applications, founded in 2022 and headquartered in San Francisco, California. Founded by Harrison Chase and Ankush Gola, LangChain provides the open-source LangChain framework with Python and JavaScript libraries, the LangGraph orchestration framework for stateful AI agents, LangSmith for observability and evaluation, and LangServe for deployment. The platform supports integrations with all major LLMs including OpenAI, Anthropic, Google, Cohere, and open-source models, plus hundreds of vector databases, document loaders, and tools. LangChain has over 100,000 GitHub stars, is used by companies including Klarna, Replit, Rakuten, Elastic, and Morningstar, and raised 25 million Series A at a 200 million valuation.

DirJournal's Perspective

Editorial analysis

LangChain dominates the LLM application framework market with 100,000+ GitHub stars and adoption from enterprise players like Klarna and Morningstar. Its integrated stack—from core framework through LangGraph agents to LangSmith observability—positions it as the operational backbone for production

Reviewed by DirJournal Editorial Board

Frequently Asked

About LangChain

What does LangChain do?
LangChain is the worlds most popular framework for building LLM-powered applications, founded in 2022 and headquartered in San Francisco, California. Founded by Harrison Chase and Ankush Gola, LangChain provides the open-source LangChain framework with Python and JavaScript libraries, the LangGraph orchestration framework for stateful AI agents, LangSmith for observability and
Where is LangChain based?
LangChain is based in San Francisco, California, United States.
When was LangChain founded?
LangChain was founded in 2022 and has been operating for 4 years.
Technical Grounding
JSON-LDSoftwareApplication
Location
San Francisco, California, United States
Founded
2022
Team Size
1-10 employees
Digital Footprint · Technical Entity Graph
  • Website
    langchain.comHTTPS
  • Schema Type
    SoftwareApplication
  • JSON-LD
    Active
  • NAP Vault ID
    Not assigned
  • Social Profiles
    None linked
  • Platform Tenure
    New listing
View Technical Schema▸
@type
SoftwareApplication
areaServed
Global
openingHours
Mo-Su 00:00-23:59

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