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features
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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.

Description

Persona is a VanillaJS Agent UI Library that empowers developers to craft interactive front-end experiences using pure JavaScript. It is lightweight, highly extensible, and built to be WebMCP-native, making it compatible with any technology stack while seamlessly connecting to various SSE backends. Developers have the flexibility to begin with a floating launcher in the corner, a copilot docked next to an application, or even a full-height assistant that takes over the entire page, all while adjusting the launcher setup without altering the agent or application itself. This library is tailored for a diverse range of use cases, including support, documentation, sales, onboarding, internal tools, and personalized agent experiences, transforming the chat interface into an additional operational layer for the application. By utilizing WebMCP, developers can facilitate direct interactions with page actions, search functionalities, shopping carts, bookings, forms, and additional tools right from the browser through a document.modelContext; Persona intelligently identifies these tools, prompts the user for confirmation before execution, and streams the outcomes back into the ongoing conversation. Furthermore, this enhances user engagement by ensuring that interactions are intuitive and contextually relevant, ultimately leading to a more productive experience.

API Access

Has API Yes 

API Access

Has API No 

Screenshots View All

No images available

Screenshots View All

Integrations

OpenAI Yes 
Anthropic Yes 
CSS No 
Cloudflare No 
Eve No 
JavaScript No 
LangChain No 
Model Context Protocol (MCP) Yes 
Next.js No 
Svelte No 
Vercel No 
Vercel AI SDK Yes 
WebMCP No 

Integrations

OpenAI Yes 
Anthropic No 
CSS Yes 
Cloudflare Yes 
Eve Yes 
JavaScript Yes 
LangChain Yes 
Model Context Protocol (MCP) No 
Next.js Yes 
Svelte Yes 
Vercel Yes 
Vercel AI SDK No 
WebMCP Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Pricing Details

Free
Free Trial No 
Free Version Yes 

Deployment

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

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 Yes 

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) Yes 
In Person No 

Vendor Details

Company Name

OpenHarness

Website

open-harness.dev/

Vendor Details

Company Name

Runtype

Country

United States

Website

www.persona-chat.dev/

Product Features

Alternatives

No Alternatives

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