AI Infrastructure & MLOps Freemium

LangChain

Open-source libraries and LangSmith platform for production AI agents

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PricingFreemium
Starting price$39/seat/mo
Free planYes
Free trialYes
APIYes
Open sourceYes
DeploymentHybrid
Last verifiedAugust 3, 2026
Overview

Tool overview

LangChain is listed under AI Infrastructure & MLOps AI tools.

Summary

What is LangChain?

LangChain provides MIT-licensed Python and JavaScript libraries, LangGraph agent orchestration, and the LangSmith platform for tracing, evaluation, deployment, and operating production agents.

Best fit

Best for

Teams building and operating production AI agents

Audience

Who is it for?

AI developersSoftware engineersML platform teamsEnterprise AI organizations
Recommendation

Decision note

Rebuilt from the original export under the complete V412/V411 factual-source-verification workflow. Preview only. Apply remains blocked until Failures = 0, Warnings = 0, Unmapped = 0, Missing = 0; explicit clears are reviewed; image import is disabled; a representative WordPress edit screen is compared with the export and proposed row; and a post-Apply zero-change Preview succeeds.

Capabilities

Key features

LangChain Python and JavaScript libraries

LangGraph durable agent orchestration

LangSmith tracing, evaluation, and deployment

Large model, tool, and data integration ecosystem

Workflows

Use cases

Build tool-using AI agents

Create RAG and workflow applications

Trace and evaluate production systems

Deploy and operate agent services

Strengths

Pros

  • Free open-source libraries and Developer tier
  • MIT license
  • Cloud, hybrid, and self-hosted enterprise options
Considerations

Limitations

LangChain-community has been sunset and integrations are moving to provider-owned packages.

Production agents require evaluation, observability, security, and permissions.

Cost

Pricing details

Pricing modelFreemium
Starting price$39/seat/mo
Free planYes
Free trialYes
Pricing context

Billing options

Free DeveloperMonthly per seat plus usageEnterprise contract
Pricing context

Pricing note

LangSmith Developer is $0 per seat with 5,000 base traces monthly. Plus is $39 per seat monthly with 10,000 base traces, then pay-as-you-go. Enterprise is custom.

View official pricing
Compatibility

Supported languages

  • English
Connectivity

Integrations

OpenAI

Anthropic

Google

AWS Bedrock

Azure

Vector databases

MCP

Partner packages

Specs

Technical details

PlatformsWeb, API
Multilingual supportUnknown
Login requiredYes
Open sourceYes
LicenseMIT
DeploymentHybrid
CompanyLangChain, Inc.
Current versionLangChain 1.3.2; Core 1.4.7
Models / versionsLangChain LangGraph LangSmith
Editions / plansLangChain LangGraph LangSmith Developer LangSmith Plus Enterprise
Data confidenceHigh
Last verifiedAugust 3, 2026
Documentation → Source code → Release notes → Data source →
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Answers

Frequently asked questions

LangChain provides MIT-licensed Python and JavaScript libraries, LangGraph agent orchestration, and the LangSmith platform for tracing, evaluation, deployment, and operating production agents.
Teams building and operating production AI agents
The listed pricing model for LangChain is Freemium. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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