Agentty

Agentty is a native C++26 terminal coding agent offering millisecond startup, sandboxing, and multi-model support.

Agentty is a native C++26 terminal coding agent designed as a drop-in alternative to claude-code. It features a single static binary with millisecond cold start, sandboxing by default, and a one-command SSH air-gap. Users can sign in with existing subscriptions like Claude Pro/Max, ChatGPT, GitHub Copilot, or Kimi, or use backends such as DeepSeek, Google Gemini, xAI Grok, Mistral, OpenAI, Groq, OpenRouter, Together, Cerebras, Fireworks, or local Ollama models. It includes smart mode orchestration, codebase learning via SKILL.md and local retrieval, isolated subagents, and runs inside Zed over ACP. The software is open source under the MIT license.

Agentty at a glance

Best for: Software engineer
Runs on: Linux, macOS, Windows, CLI
Pricing: Free
Released: April 2026
Category: AI coding tool
Website: agentty.org

Key features

Native C++26 implementation with millisecond cold start
Sandboxing by default using bwrap or sandbox-exec
Support for Claude, ChatGPT, Copilot, Kimi, and OpenAI-compatible models
Smart mode self-supervised orchestrator with subagents
Codebase learning with durable cross-session memory
One-command SSH air-gap over SOCKS5
Integration with Zed over the Agent Client Protocol

Use it for

Pair programming directly inside the terminal
Executing hard refactors with adjustable reasoning effort
Running shell commands and code blocks interactively
Rewinding files and transcripts to previous git checkpoints

Companions

Tools that articles about Agentty recommend using with it, each with its job.

Context7 — Provides up-to-date documentation for AI agents and code editors.
Ollama — Run local models at zero marginal cost, with code kept on your machine.
OpenRouter — Access over 500 models and 80 providers through one unified API.
Daytona — Runs sessions in isolated sandboxes synced to git branches.
Composio — Equips AI agents with tools, managed user auth, and sandboxes across 1,500+ apps
Oh My OpenCode Slim — Lightweight multi-agent orchestration and background tasks.

Alternatives to Agentty

OpenCode — Works with 75+ model providers, local models, and existing subscriptions
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pstack — Improves AI coding agent outcomes with rigorous workflows.
Agentation — It translates clicks into CSS selectors and source paths for agents.
Agent Pets — Approve agent permission prompts and send replies directly from any browser tab
AgentDock — Manages multiple coding agents from one screen-edge inbox without switching tabs.
Agent Archive — Hand off coding sessions between Claude Code, Codex, and Cursor across machines.
Agentic Coding Biolerplate — Provides shared instructions and review workflows for coding assistants.
Zero — Operates entirely on the local machine with configurable permission-gated actions.
CodeGraph — It eliminates file crawling, reducing AI agent tool calls by 88% and cutting costs.
Agent Skills — Encodes senior-engineer workflows and quality gates into 24 skills.
Agent Native — Define capabilities once for the agent, UI, APIs, and integrations.

All Agentty alternatives