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Herdr Review
Herdr is a terminal-native agent runtime and multiplexer that provides persistent terminal workspaces with agent state awareness and an API for agents to use.
shipped Jun 5, 2026aifreemium
1Herdr accumulated over 1,400 stars on GitHub, gaining +169 stars/day as of early June 2026.
2Version 0.6.3 introduced new persistence paths for updates, server restarts, and larger sessions.
3Provides real-time agent status tracking, including 'blocked', 'working', 'done', and 'idle' states.
4Supports remote SSH attachment and thin-client access for agent sessions.
Herdr at a Glance
About Herdr
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overview
What is Herdr?
Herdr is a terminal-native agent runtime and multiplexer tool developed by Herdr that enables engineers, developers, and users of AI coding agents to manage multiple AI agents in parallel. It provides persistent terminal workspaces with agent state awareness and an API for agents to use. Herdr functions as a terminal multiplexer purpose-built for AI coding agents, allowing developers to spawn, monitor, and coordinate multiple instances of AI coding agents such as Claude Code, Codex, or Gemini CLI within split panes in a single terminal interface. It is designed to address the pain points of managing multiple AI coding agents in traditional terminal multiplexers like tmux, offering persistent terminal sessions, workspaces, panes, tabs, mouse-friendly TUI controls, and remote SSH sessions.
quick facts
Quick Facts
| Attribute | Value |
|---|---|
| Developer | Herdr |
| Business Model | Freemium |
| Pricing | Freemium |
| Platforms | Web |
| API Available | Yes |
| Integrations | Pi, OMP, Claude Code, Codex, GitHub Copilot CLI, OpenCode, Hermes Agent, Qoder CLI |
features
Key Features of Herdr
Herdr provides a comprehensive set of features designed to enhance the management and orchestration of AI coding agents within a terminal environment. These capabilities bridge the gap between traditional terminal multiplexers and specialized AI agent applications, offering both persistence and agent-specific intelligence.
- 1Terminal-native agent runtime and multiplexer for AI agents.
- 2Persistent terminal workspaces with detach and reattach functionality.
- 3Real-time agent state awareness, tracking 'blocked', 'working', 'done', and 'idle' states.
- 4CLI and Unix socket API for orchestrating agent fleets and delegating tasks.
- 5Remote SSH access and thin-client support for agent sessions.
- 6Mouse-friendly TUI controls, keyboard shortcuts, and TUI navigation.
- 7Support for running multiple AI coding agents simultaneously in split panes, tabs, and workspaces.
- 8Built-in agent status tracking and notifications to reduce cognitive load.
- 9Live handoff functionality to preserve terminal state during server updates.
- 10Enhanced agent detection for various AI coding agent prompts, including arrow-glyph selectors.
use cases
Who Should Use Herdr?
Herdr is primarily targeted at engineers, developers, and AI practitioners who regularly interact with and manage multiple AI coding agents. Its design addresses specific challenges encountered when orchestrating complex AI-driven development workflows.
- 1Engineers and Developers: For running 3-10 AI coding agents in parallel across various projects without losing track of their activities.
- 2Users of AI Coding Agents: To manage long-running AI coding sessions with persistence, allowing users to detach and reattach later without losing work.
- 3AI Practitioners: For monitoring and coordinating AI agents with real-time state tracking (blocked, working, done, idle) and notifications.
- 4Teams Requiring Agent Orchestration: To orchestrate agent fleets through CLI and socket API, enabling a main orchestrating AI agent to delegate tasks to different agents for parallel or collaborative work.
- 5Remote Developers: For remote SSH attachment and thin-client support for agent sessions, keeping agents running on a server and accessing them from any client.
pricing
Herdr Pricing & Plans
Herdr operates on a freemium business model. This typically implies that a basic version of the software is available for free, offering core functionalities, while advanced features, commercial support, or increased usage limits are provided through paid tiers. Specific details regarding the pricing structure, tier names, and associated costs for premium offerings are not publicly disclosed as of early June 2026.
- 1Free Tier: Provides basic functionality for individual users and initial exploration of Herdr's capabilities.
- 2Premium Tiers: Specific details regarding features, pricing, and availability are not publicly disclosed.
competitors
Herdr vs Competitors
Herdr positions itself as a specialized terminal multiplexer for AI agents, differentiating itself from both general-purpose terminal multiplexers and other AI agent management tools by integrating agent awareness directly into the terminal experience.
1
CAO is an open-source multi-agent orchestration framework that runs each AI coding agent in an isolated tmux session and coordinates them using a supervisor–worker pattern.
Like Herdr, CAO leverages tmux for session isolation and focuses on multi-agent orchestration within a terminal environment, but it is primarily an orchestration framework with a defined supervisor-worker pattern, whereas Herdr is described as a terminal multiplexer with agent features.
2
gptme↗
gptme is a personal, autonomous AI agent designed to run persistently in any terminal environment, offering a git-tracked 'brain' with a journal, tasks, knowledge base, and lessons for continuous learning.
gptme functions as a full-fledged autonomous agent with persistent workspaces and multi-agent coordination, similar to Herdr's agent runtime, but it emphasizes a 'personal AI agent' approach with a 'git-tracked brain' for long-term learning and task management.
3
Agent Terminal is a terminal application specifically built to understand and manage AI agents, providing project-scoped persistent workspaces, live status updates, and agent detection.
Agent Terminal is an enhanced terminal interface designed around AI agents, offering persistent tabs and agent awareness akin to Herdr's 'tmux for AI agents' concept, but its primary focus is on improving the terminal experience for agent users rather than acting as an agent runtime or orchestrator itself.
4
Warp Terminal↗
Warp is a modern, open-source agentic development environment that integrates AI-powered terminal features with an agent orchestration platform for both local and cloud agents.
While Herdr is a terminal-native agent runtime and multiplexer, Warp offers a more comprehensive 'agentic development environment' that includes a modern terminal, AI features, and a platform for orchestrating agents, potentially providing a broader scope of AI-assisted development.
❓
Frequently Asked Questions
+What is Herdr?
Herdr is a terminal-native agent runtime and multiplexer tool developed by Herdr that enables engineers, developers, and users of AI coding agents to manage multiple AI agents in parallel. It provides persistent terminal workspaces with agent state awareness and an API for agents to use.
+Is Herdr free?
Herdr operates on a freemium business model. A basic version of the software is available for free, offering core functionalities. Details regarding specific paid tiers, advanced features, or commercial support are not publicly disclosed.
+What are the main features of Herdr?
Key features of Herdr include its terminal-native agent runtime, multiplexer capabilities for AI agents, persistent terminal workspaces with detach/reattach functionality, real-time agent state awareness (blocked, working, done, idle), CLI and Unix socket API for orchestration, remote SSH access, and mouse-friendly TUI controls.
+Who should use Herdr?
Herdr is designed for engineers, developers, and AI practitioners who need to run and manage multiple AI coding agents simultaneously. It is particularly useful for managing long-running AI coding sessions, monitoring agent states, orchestrating agent fleets, and facilitating remote development with AI agents.
+How does Herdr compare to alternatives?
Herdr differentiates itself from general-purpose multiplexers like tmux by offering 'agent awareness' and real-time status tracking. Unlike terminal replacements such as Warp, Herdr is terminal-native and runs within existing terminals. It also provides a more integrated agent management experience compared to orchestration frameworks like CAO or personal agents like gptme.
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