Agent tool / platformFree source · check hosted pricingLiveFrom public docsDurableApproval-gated
LangGraph
LangChain
Low-level orchestration for stateful agents, with durable execution and human-in-the-loop.
Overview
LangGraph builds agents as graphs with persisted state, so they can survive failures and resume where they left off. Human-in-the-loop interrupts let a person inspect and modify state mid-run. LangSmith Deployment hosts long-running, stateful agents.
Production criteria
| Approval gatesCan a person or policy hold an action until it is approved? | Built in Human-in-the-loop interrupts pause the graph for review. |
|---|---|
| Restart recoveryDoes work resume after a crash or redeploy without repeating finished steps? | Built in Durable execution: agents persist through failures and resume. |
| Evidence trailCan you inspect what ran, with what inputs, and who approved it? | Documented pattern Persisted state per step can be inspected; LangSmith adds tracing. |
| Kill switchCan an operator withdraw permission or stop further actions? | Not claimed Not documented by the vendor or not yet reviewed. |
| Policy controlsDo declared rules decide which tools and actions are allowed? | Not claimed Not documented by the vendor or not yet reviewed. |
| Sandbox isolationDoes code or tool execution run inside an isolated boundary? | Not claimed Not documented by the vendor or not yet reviewed. |
Marks reflect the documentation linked below as of 2026-10-29. How we mark criteria.
Limits and scope
- Durability depends on the checkpointer backend you configure.
Also in Agent frameworks with checkpoints
- Microsoft Agent Framework — Build and orchestrate agents and multi-agent workflows in Python and .NET.
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