Developer
Free
Free seat with pay-as-you-go usage
- Traces
- Up to 5k base traces per month included
- Seats
- One seat on Developer
Finding the possibilities
LangChain
● Identity checkedAgent Platform · Vendor site 2026-10-04
LangChain provides the open LangGraph and LangChain frameworks plus LangSmith for tracing, evaluation, and deploying agents. LangSmith cloud plans charge per seat with pay-as-you-go trace usage beyond included bundles.
- Category
- Agent Platform
- Free access
- Developer plan at $0 per seat with up to 5k base traces per month
- API access
- LangSmith and deployment APIs documented for agent observability and hosting
Is LangChain right for you?
A good fit for
Engineering teams building production agents who need tracing, evals, and deployment in one platform.
Before you choose
Trace, deployment, and engine usage is pay-as-you-go after plan bundles; Enterprise requires sales for SSO and self-host.
Overview
LangChain’s platform helps teams own agent intelligence end to end, from open-source frameworks to LangSmith monitoring and hosted deployment.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| LangSmith | Provides observability, evaluation, and deployment for agents. | Facts sourced | 2026-10-04 |
| Open frameworks | LangChain and LangGraph remain open-source agent frameworks. | Facts sourced | 2026-10-04 |
| Usage billing | Plans include base trace bundles with pay-as-you-go overages. | Facts sourced | 2026-10-04 |
Understand the total cost
LangChain pricing & plans
Plus
$39.00 /mo
Per-seat monthly billing plus usage
- Traces
- Up to 10k base traces per month included
- Features
- Access to Deployment and Engine products
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Explore toolThe practical questions
Frequently asked questions
What is LangChain used for?
LangChain provides the open LangGraph and LangChain frameworks plus LangSmith for tracing, evaluation, and deploying agents. LangSmith cloud plans charge per seat with pay-as-you-go trace usage beyond included bundles.
Does LangChain have a free plan?
Developer plan at $0 per seat with up to 5k base traces per month. This record lists ongoing free access; check the plan limits before starting.
How much does LangChain cost?
The listed monthly price is $39.00 USD at monthly billing. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use LangChain through an API?
LangSmith and deployment APIs documented for agent observability and hosting. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
Trace, deployment, and engine usage is pay-as-you-go after plan bundles; Enterprise requires sales for SSO and self-host.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.