langchain.com

Langchain

Framework for LLM application development

Type: Development License: Open-Source Price: Free - Langsmith Pricing Varies Category: Development tools AimostAll Score: 87/100

AimostAll Score

87/ 100
Data coverage: 50% (medium confidence)
Last evaluated: 2026-08-22
Methodology: version 1
Developer100
Business78
Valuenot enough data
Trust83
Why this score?

Each check below is a fact we could verify from public sources. Unknown checks are excluded from the calculation instead of counting as a negative, and the score is pulled toward the midpoint when coverage is low — that is what data coverage reports.

Developer100/100 · 93% of checks known

  • YesPublic API source ↗LangSmith platform and LLM gateway consumed programmatically.
  • YesPublic API reference source ↗Documentation published for the platform and frameworks.
  • YesDeveloper documentation source ↗Documentation, guides and academy published.
  • YesOfficial SDKs / client libraries source ↗Framework libraries are the primary distribution.
  • YesDocumented integrations source ↗Works with any model provider.
  • YesOpen-source core source ↗langchain, langgraph and deepagents are open-source frameworks.
  • YesSelf-hosting possible source ↗Open-source frameworks run in the developer's own stack.

Not determined: Webhooks / automation hooks.

Business78/100 · 33% of checks known

  • YesPublic pricing source ↗Public pricing page for the platform.
  • YesBusiness / enterprise tier source ↗Fleet agents offering for whole companies.
  • YesCommercial plan exists source ↗Paid LangSmith plans.

Not determined: Team collaboration, Admin / role management, SSO available, Security / compliance information, Customer data export, Documented support channels.

Valuenot published · 24% of checks known

  • YesTransparent pricing source ↗Public pricing page for the platform.
  • YesBrowser app source ↗LangSmith observability console.

Not determined: Free tier, Free trial, Concrete plan limits, No card required to start, Cancellation / refund policy, Mobile app, Desktop app.

Trust83/100 · 45% of checks known

  • YesOfficial documentation source ↗Documentation linked site-wide.
  • YesPublic pricing source ↗Public pricing page for the platform.
  • YesWebsite reachable source ↗Homepage probe during evidence gathering.

Not determined: Privacy policy, Terms of service, Identifiable vendor, Published contact channel, Changelog / release notes, Status page.

Scores are calculated by AimostAll with fixed, public rules (methodology v1). AI assists only with factual research; it never picks the number. Placement and scores cannot be bought.

What is Langchain?

LangChain is a framework for developing applications powered by language models. It provides tools for chaining LLM calls, integrating with data sources, building agents, and creating complex AI workflows.

Listing trust signals

Listing ID

734

Directory refresh date

2026-08-22

Pricing confidence

Medium confidence based on currently stored pricing metadata.

Pricing, category and fit

Langchain is listed as a Development tool on AimostAll.

License model: Open-Source. Pricing label: Free - Langsmith Pricing Varies.

Use this page to compare Langchain with other development tools, watch tutorials, and explore similar alternatives.

Video Tutorials

Latest YouTube tutorials matched to this tool (updates twice per day).

Frequently asked questions about Langchain

What does Langchain do?

Framework for LLM application development.

Is Langchain free or paid?

Langchain is listed on AimostAll as open-source with a pricing label of Free - Langsmith Pricing Varies.

Where can I compare alternatives to Langchain?

Use the alternatives section below or browse the wider development category to compare similar tools.