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Description

The Agent Development Kit (ADK) is a powerful open-source platform designed to help developers create AI agents with ease. It integrates seamlessly with Google’s Gemini models and various AI tools, providing a modular framework for building both basic and complex agents. ADK supports flexible workflows, multi-agent systems, and dynamic routing, enabling users to create adaptive agents. The platform offers a rich set of pre-built tools, third-party library integrations, and deployment options, making it ideal for building scalable AI applications in any environment, from local setups to cloud-based systems.

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 Yes 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

No images available

Integrations

AG-UI Yes 
Agent Control Yes 
Agent2Agent (A2A) Yes 
Agentspan Yes 
Anthropic No 
Gemini Yes 
Gemini Enterprise Yes 
Gemini Enterprise Agent Platform Yes 
Google Cloud Run Yes 
Hindsight Yes 
Model Context Protocol (MCP) No 
OpenAI No 
OpenUI Yes 
Openlayer Yes 
Prefactor Yes 
Simaril Yes 
Vercel AI SDK No 
asqav Yes 

Integrations

AG-UI No 
Agent Control No 
Agent2Agent (A2A) No 
Agentspan No 
Anthropic Yes 
Gemini No 
Gemini Enterprise No 
Gemini Enterprise Agent Platform No 
Google Cloud Run No 
Hindsight No 
Model Context Protocol (MCP) Yes 
OpenAI Yes 
OpenUI No 
Openlayer No 
Prefactor No 
Simaril No 
Vercel AI SDK Yes 
asqav No 

Pricing Details

Free
Open source
Free Trial No 
Free Version Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Deployment

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

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

Google

Founded

1998

Country

United States

Website

google.github.io/adk-docs/

Vendor Details

Company Name

OpenHarness

Website

open-harness.dev/

Product Features

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Alternatives

No Alternatives
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