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About

OpenHarness is an open-source TypeScript SDK for developers building custom AI-agent applications, including coding agents, CLI tools, and web-based assistants. It provides stateless agent execution, explicit conversation-state handling, streaming events, composable middleware for retries, persistence and context compaction, hierarchical subagents, and permission-controlled tools. Developers can connect model providers through the Vercel AI SDK, add external capabilities through Model Context Protocol (MCP), and use filesystem or shell tools through configurable providers. The SDK also offers React hooks and Vue composables for streaming agent output into application interfaces. OpenHarness is installed as an npm package and is intended to be embedded in projects running on Node.js or edge runtimes; it is a developer library rather than a hosted end-user agent service.

About

OpenLegion is a production-grade AI agent framework and platform for building an AI workforce by describing the team you want. Tell OpenLegion “I want a marketing agency,” “I want a sales team,” or “I want a research desk,” and it deploys the agent stack with roles, budgets, permissions, and secure credential controls built in. Instead of stopping at chat, OpenLegion is designed for real workflows; agents can browse websites, fill out forms, write and run code, send emails and messages, manage files and folders, research and summarize, scrape data, qualify sales leads, process spreadsheets, post to social media, monitor for changes, and trigger workflows through Slack, Telegram, or Discord. Each agent runs in its own isolated container with per-agent budgets, tool permissions, persistent memory, MCP-compatible skills, and vault-secured credentials that agents never touch.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Software developers and engineering teams building custom AI-agent applications, including coding agents, CLI tools, and web assistants.

Audience

Operations-heavy teams that need secure, budget-controlled AI agent fleets to automate browser, coding, research, sales, and internal workflows in production

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

$19 per month
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

OpenHarness
open-harness.dev/

Company Information

OpenLegion
United States
www.openlegion.ai/

Alternatives

Deep Agents

Deep Agents

LangChain

Alternatives

Mastra

Mastra

Mastra AI
eve

eve

Vercel
Mastra

Mastra

Mastra AI

Categories

Categories

Integrations

Model Context Protocol (MCP) Supported
Anthropic Supported
ChatGPT Not Supported
Claude Not Supported
Claude Duet Not Supported
Claude for Legal Not Supported
Discord Not Supported
Docker Not Supported
Gemini Not Supported
OpenAI Supported
Slack Not Supported
Telegram Not Supported
Vercel AI SDK Supported

Integrations

Model Context Protocol (MCP) Supported
Anthropic Not Supported
ChatGPT Supported
Claude Supported
Claude Duet Supported
Claude for Legal Supported
Discord Supported
Docker Supported
Gemini Supported
OpenAI Not Supported
Slack Supported
Telegram Supported
Vercel AI SDK Not Supported
Claim OpenHarness and update features and information
Claim OpenHarness and update features and information
Claim OpenLegion and update features and information
Claim OpenLegion and update features and information