Tools & citations
Docs
LangGraph & AG-UI
The open-source thread-plane for Angular agents.
Make agent work persistent, durable, visible, reviewable, and resumable.
demo.threadplane.ai/hero
MIT · Angular 20–22 · no account, no cloud
Climb performance
Audited, scored, published.
Not self-reported. Every figure links to the body that published it.
AIRPORT DIAGRAM
Every stack has a gate.
THREADPLANE INTL (TPL)
ANGULAR · LANGGRAPH & AG-UI
CONCOURSE A — @threadplane/langgraph
- A1LANGGRAPH
CONCOURSE B — @threadplane/ag-ui
- B1AG-UI
- B2CREWAI
- B3MASTRA
- B4PYDANTIC AI
- B5MICROSOFT AGENT FRAMEWORK
- B6AWS STRANDS
All AI Models supported
- OpenAI
- Anthropic
- Azure OpenAI
- Amazon Bedrock
Architecture
The UI layer between your users and your agents.
Threadplane lives inside your Angular application and talks to your agents through the LangGraph SDK or AG-UI.
YOUR USERS
People
- web · mobile
YOUR ANGULAR APPLICATION
Threadplane
THE UI LAYER- Chat
- Approvals
- Threads
- Generative UI
- Client tools
- A2UI
- json-render
@threadplane/chat
ADAPTERS
LangGraph SDK
FIRST-CLASS- checkpoints · interrupts
- time travel · memory
- subgraphs · durable runs
ANY MODEL
- OpenAI · Anthropic · Google · Azure OpenAI · Amazon Bedrock
- your choice
Cleared direct
No runtime.
Your users reach your LangGraph or AG-UI server from your Angular app. Nothing of ours in between: no cloud, no key, no dev-only flag.
How it is wiredEverything your agent needs on screen.
Follow one workflow through tools, subagents, saved threads, approvals, and generated UI.
One workflow. Every step in your Angular app.
MIT · Angular 20–22 · no account, no cloud · LangGraph and AG-UI
What breaks between a demo and production
Free preflight briefing for agentic UI
Threadplane · Open source · Angular
From Prototype to Production
Production-ready chat, threads, and generative UI for AI agents.
Contents
- Streaming State Management
- Thread Persistence
- Tool-Call Rendering
- Human Approval Flows
- Generative UI
- Deterministic Testing
threadplane.ai2026
Shipping inside a large Angular platform? Bring your backend, security model, and design system.
Talk to an engineerQuestions
Frequently asked questions.
Is Threadplane a backend agent framework?
No. Threadplane is the Angular UI layer. Your agent runs in LangGraph, in an AG-UI-compatible runtime, or in your own service. Choosing an adapter
Can I use my existing Angular component library and design system?
Yes. The chat compositions are stylable, the primitives are headless, and generated UI renders components you register. Generated UI
Does generated UI execute arbitrary code?
No. The agent emits constrained structured output that is validated against a schema, and Angular renders registered components with a per-component fallback. json-render and A2UI
Does Threadplane require a hosted service or an account?
No. Every package is MIT and runs inside your Angular application against a backend you host. Pricing
Does Threadplane have a runtime I need to deploy?
No. The adapters call your LangGraph or AG-UI server from the browser. There is no Threadplane server in the request path, no key, and no production tier. How it is wired
Blog
Recent articles
Why Do Agent UI Libraries Require a Runtime?
Vercel AI SDK, TanStack AI, assistant-ui, CopilotKit, and Threadplane compared: where the agent loop runs, who holds the key, and what each design trades away.
Threadplane 0.1.0: The Coffee in the Hangar Is Free
The first minor release. Six MIT packages covering the last mile of an Angular agent UI — chat, durable threads, approvals, generative UI — no paid tier.
What Changes in Your Angular Code When the Agent Runtime Changes
AG-UI and LangGraph land on the same Angular contract. Here is what actually differs — and which differences are the protocol, not the adapter.
