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Description

AG-UI is a lightweight and open protocol that focuses on event-driven communication, establishing a standardized method for AI agents to interface with applications aimed at users. Its design emphasizes ease of use and adaptability, facilitating smooth integration between AI agents, real-time user context, and various user interfaces. This protocol enhances agent-human interaction by allowing backend systems to emit events that align with the standard AG-UI event categories during agent operations, while also accepting straightforward AG-UI-compatible inputs. AG-UI operates seamlessly with multiple event transport methods, such as Server-Sent Events (SSE), WebSockets, webhooks, and other streaming solutions, incorporating a flexible middleware component that maintains compatibility across different environments. By integrating agents into user-oriented applications, AG-UI effectively complements the broader agent-focused protocol ecosystem: while MCP equips agents with essential tools, A2A facilitates inter-agent communication, and AG-UI specifically bridges the gap between agents and user interfaces. This comprehensive approach underscores AG-UI's pivotal role in enhancing interaction between users and AI technologies.

Description

OpenHarness is an open-source SDK developed in TypeScript, designed for developers aiming to create tailored AI-agent applications such as coding assistants, command-line tools, and web-based helpers. This toolkit features stateless agent execution, the ability to manage conversation states explicitly, and support for streaming events, alongside middleware that can be composed for retries, data persistence, and context management. Additionally, it supports hierarchical subagents and tools that operate under permission controls. Developers can easily link model providers via the Vercel AI SDK, enhance functionalities with the Model Context Protocol (MCP), and utilize filesystem or shell tools through customizable providers. The SDK includes React hooks and Vue composables to facilitate the integration of streaming agent outputs into various application interfaces. OpenHarness is available as an npm package and is designed for integration into projects that run on Node.js or edge environments, functioning as a developer-focused library rather than a service for end-users. Moreover, its architecture encourages flexibility and scalability in AI application development, allowing users to tailor their implementations to specific needs.

API Access

Has API No 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

No images available

Integrations

Model Context Protocol (MCP) Yes 
Agent Development Kit (ADK) Yes 
Agentivity Yes 
Agno Yes 
Anthropic No 
CrewAI Yes 
LangGraph Yes 
LlamaIndex Yes 
Mastra Yes 
OpenAI No 
OpenUI Yes 
PydanticAI Yes 
Vercel AI SDK No 

Integrations

Model Context Protocol (MCP) Yes 
Agent Development Kit (ADK) No 
Agentivity No 
Agno No 
Anthropic Yes 
CrewAI No 
LangGraph No 
LlamaIndex No 
Mastra No 
OpenAI Yes 
OpenUI No 
PydanticAI No 
Vercel AI SDK Yes 

Pricing Details

Free
Free Trial No 
Free Version Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based No 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

AG-UI

Country

United States

Website

ag-ui.com

Vendor Details

Company Name

OpenHarness

Website

open-harness.dev/

Product Features

UX

Animation No 
For Mobile No 
For Websites No 
Heatmaps No 
Prototyping No 
Screen Activity Recording No 
Unmoderated Testing No 
Usability Testing No 
User Journeys No 
User Research No 

Product Features

Alternatives

Alternatives

No Alternatives
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