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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

OpenViking is an open source context database designed specifically for AI agents, built around a file-system paradigm that unifies the management of memories, resources, and skills. Instead of treating context as scattered chunks in a fragmented vector store, OpenViking organizes agent context into a virtual file system under the viking protocol, giving agents a structured way to store, navigate, retrieve, and observe the information they need. It is designed to help developers move beyond the hassle of manual context management by giving agents a minimalist interaction model for context, similar to reading and writing files. OpenViking supports hierarchical context loading, semantic retrieval, recursive retrieval, sessions, metrics, and observability, making it possible for AI agents to access the right level of information without stuffing everything into the prompt.

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 Not Supported
Mac Not Supported
Linux Not Supported
Cloud 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

AI agent developers that need to organize and retrieve memories, resources, and skills through a unified context management system

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

Free
Free Version 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 Not Supported
In Person Not Supported

Company Information

OpenHarness
open-harness.dev/

Company Information

OpenViking
Founded: 2026
United States
openviking.ai/

Alternatives

Deep Agents

Deep Agents

LangChain

Alternatives

claude-mem

claude-mem

cmem.ai
Mastra

Mastra

Mastra AI
CMEM Cloud

CMEM Cloud

cmem.ai
Hindsight

Hindsight

Vectorize
eve

eve

Vercel
VIKING Bookings

VIKING Bookings

Viking Bookings

Categories

Categories

Agentic AI Supported
AI Memory Layers Supported

Integrations

Model Context Protocol (MCP) Supported
Aider Not Supported
Anthropic Supported
Claude Not Supported
Claude Code Not Supported
Claude Desktop Not Supported
Claude Duet Not Supported
Cursor Not Supported
Gemini CLI Not Supported
Google Antigravity Not Supported
Hermes Agent Not Supported
Kimi Code Not Supported
Kiro Not Supported
OpenAI Supported
OpenAI Codex Not Supported
OpenClaw Not Supported
OpenCode Not Supported
Pi Agent Not Supported
TRAE Not Supported
Vercel AI SDK Supported

Integrations

Model Context Protocol (MCP) Supported
Aider Supported
Anthropic Not Supported
Claude Supported
Claude Code Supported
Claude Desktop Supported
Claude Duet Supported
Cursor Supported
Gemini CLI Supported
Google Antigravity Supported
Hermes Agent Supported
Kimi Code Supported
Kiro Supported
OpenAI Not Supported
OpenAI Codex Supported
OpenClaw Supported
OpenCode Supported
Pi Agent Supported
TRAE Supported
Vercel AI SDK Not Supported
Claim OpenHarness and update features and information
Claim OpenHarness and update features and information
Claim OpenViking and update features and information
Claim OpenViking and update features and information