Related Products
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About
AG-UI is an open, lightweight, event-based protocol that standardizes how AI agents connect to user-facing applications. Built for simplicity and flexibility, it enables seamless integration between AI agents, real-time user context, and user interfaces. AG-UI is designed for agent-human interaction: during agent executions, backends emit events compatible with standard AG-UI event types, and agent backends can accept simple AG-UI-compatible inputs as arguments. It works with any event transport, including SSE, WebSockets, webhooks, and other streaming systems, while providing a flexible middleware layer that ensures compatibility across diverse environments. AG-UI brings agents into user-facing applications and complements the wider agentic protocol stack: MCP gives agents tools, A2A allows agents to communicate with other agents, and AG-UI connects agents directly to the user interface.
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About
The UCP and AP2 documentation describes how the Universal Commerce Protocol (UCP) integrates with the Agent Payments Protocol (AP2) to support secure, verifiable transactions initiated by AI agents or platforms on behalf of users, making it possible for commerce systems to handle discovery, checkout, and payment without intermediaries. UCP is fully compatible with AP2, which acts as the trust layer for agent-led transactions by requiring a secure, cryptographically verifiable exchange of intent and authorization between platforms and businesses using Verifiable Digital Credentials (VDCs); this ensures businesses receive signed checkout commitments that can’t be altered mid-flow and platforms issue proofs of payment authorization tied specifically to a cart state, reducing fraud and making transactions final and authentic.
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Audience
AI product developers building interactive agent-powered applications that need structured streaming, tool calls, shared state, and human-in-the-loop control
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Audience
Developers and platform architects building AI-driven commerce experiences who need a protocol for secure, interoperable agent-initiated purchasing and payment flows
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Support
Phone Support
24/7 Live Support
Online
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Support
Phone Support
24/7 Live Support
Online
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API
Offers API
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API
Offers API
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
Free
Free Version
Free Trial
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Pricing
No information available.
Free Version
Free Trial
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Reviews/
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Reviews/
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Training
Documentation
Webinars
Live Online
In Person
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Training
Documentation
Webinars
Live Online
In Person
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Company InformationAG-UI
United States
ag-ui.com
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Company InformationUniversal Commerce Protocol (UCP)
United States
ucp.dev/documentation/ucp-and-ap2/
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Alternatives |
Alternatives |
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Categories |
Categories |
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Integrations
Agent Development Kit (ADK)
Agent Payments Protocol (AP2)
Agno
CrewAI
LangGraph
LlamaIndex
Mastra AI
Model Context Protocol (MCP)
PydanticAI
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Integrations
Agent Development Kit (ADK)
Agent Payments Protocol (AP2)
Agno
CrewAI
LangGraph
LlamaIndex
Mastra AI
Model Context Protocol (MCP)
PydanticAI
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