LangChain

Open source

Open source framework and platform for building applications powered by language models.

by LangChainOfficial site ↗Source code ↗

Pricing: free, subscription, usage, custom
Free tier: true
License: open-source, proprietary
Open source: Yes

Editorial review

LangChain has not yet been editorially reviewed. User reviews and published field data below are unaffected — we say so rather than implying an editorial verdict.

Facts & attributes

Every value carries its evidence state. “—” means unknown — never a silent default (P-02).

Identity · Taxonomy

Documentation(HTTPS URL): https://docs.langchain.com/Verified
Tags(open-source;cloud-native): LLM agents, agent observability, agent evaluation, open source, LLM gatewayVerification pending

Platform · Deployment

Delivery model(SaaS;self-hosted;desktop;mobile;embedded;managed-cloud;appliance): SaaS, self-hostedVerified

Pricing · Licensing

Free plan(true/false): trueVerification pending
License model(proprietary;open-source;source-available;dual-license): open-source, proprietaryVerification pending
Pricing model(free;subscription;usage;seat;asset;transaction;revenue-share;perpetual;custom): free, subscription, usage, customVerification pending
Source repository(HTTPS URL): https://github.com/langchain-ai/langchainVerified
SPDX license IDs(Apache-2.0;MIT): MITVerified
Starting price(29): 39Verified

Features · Product · Fit

Core capabilities(authoring;automation;analytics): agent observability with step-by-step tracing, online and offline agent evaluation, agent deployment on infrastructure built for long-running tasks, LLM gateway with cost controls, rate limiting, and PII redaction, ephemeral sandboxes for agent-generated code, no-code agents for the whole companyVerification pending

Api · Integrations · Ecosystem

API available(true/false): trueVerification pending
CLI(true/false): trueVerification pending

Audience · Use · Case

Best for(Neutral editorial summary): Engineering teams building, deploying, and improving LLM agents, backed by widely used open-source agent frameworks.Verification pending
Company-size fit(individual;SMB;mid-market;enterprise): individual, SMB, mid-market, enterpriseVerification pending
Primary use cases(build;monitor;automate): building LLM agents with open-source frameworks, debugging and monitoring agents in production, evaluating and improving agent performanceVerification pending
Skill level(beginner;intermediate;advanced;specialist): intermediateVerification pending

Lifecycle · Versioning

Changelog/release notes(HTTPS URL): https://changelog.langchain.com/Verified
Maintenance status(active;maintenance;deprecated;EOL;archived): activeVerified

Vendor · Maintainer

Vendor type(commercial;foundation;community;government;consortium;individual): commercialVerification pending

Also categorized in

LLM Orchestration Frameworks

User reviews

Review policy

No published reviews yet.