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 pricing
● 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
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
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.
LangChain pricing questions
Is LangChain free?
Yes. LangChain has an ongoing free plan. Developer plan at $0 per seat with up to 5k base traces per month
How much does LangChain cost?
LangChain paid plans start at $39 per month (Plus $39/mo). Prices are in USD and last checked Oct 4, 2026.
Does LangChain have an API?
API or developer access is mentioned. LangSmith and deployment APIs documented for agent observability and hosting