LangChain
langchain.com
Open sourceMCPNo card
Open-source framework for stateful, multi-step AI agent workflows
- Free tier
- Yes
- Per month
- Free – $39/seat
- MCP
- Yes
Why it's here
Broad ecosystem and mature agent workflows; free SDK, but deployment and RAG need engineering.
Free tier
OSS framework free; LangSmith Developer: 1 seat, 5,000 traces/month
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Last verified
Agent Frameworks
#5 of 26Broad ecosystem and mature agent workflows; free SDK, but deployment and RAG need engineering.
| per month | Open sourceFreeSDK free; models and deployment cost extra | DeveloperUsage5k traces/mo included; usage thereafter | Plus$39/seat+ metered tracing, compute and LLM usage | EnterpriseCustom+ usage; optional self-hosting |
|---|---|---|---|---|
| Native agents | ||||
| Own LLM keys | ||||
| No usage meter | ||||
| Built-in RAG | ||||
| API & embed | ||||
| MCP tools | ||||
| Triggers | ||||
| Human approval | ||||
| Run logs | ||||
| Team seats | 1 seats | 1 seats |