DevCat
No account. No server. Your machine, your keys, your agents.
Run Claude Code, Codex, Gemini or the built-in DevCat Agent next to the diff, the commit graph, your SQL editor and your Kubernetes pods. Build with your team in Rooms, give every agent one memory, and keep them going from your phone or a chat app. A free download for macOS, Windows and Linux.
Latest release on GitHub.
An agent sends the whole conversation to the model again at every step. The DevCat Agent is built so the model provider can answer most of it from its prompt cache, which is billed at a fraction of the price.
The system prompt and the tool list stay the same for the whole chat. Only the new tool results go in as fresh input.
A rolling cache point on Anthropic, a per-chat cache key on OpenAI, and cache hits counted for DeepSeek, GLM and Kimi too.
The chat shows how much of its input came from the cache and estimates the cost at the cached price. Trace shows the tokens of every step.
Long chats are summarized, long tool output is read in parts, and research helpers work in a fresh context of their own.
Everything a project needs is a tab away, and DevCat keeps each project's connections, chats and repos together. The docs explain each part step by step.
Claude Code by default, or OpenAI Codex, Gemini CLI, GitHub Copilot, Aider, opencode or your own CLI. DevCat runs the one you installed, with your own login.
Sessions are listed per project, so you can pick up yesterday's conversation in a click. Or start a ghost chat: a fresh window that keeps nothing.
The DevCat Agent runs on any OpenAI- or Anthropic-compatible model, asks before it edits or runs anything, follows your AGENTS.md and uses your MCP servers.
Right-click a database or cluster and ask: it already knows the tables. It queries, dumps and exports, and dropping a database takes your OK twice. Every agent shares one memory.
The Diff tab shows every change as it happens. Tick the files to commit and discard the rest.
Ask for a code review before you commit.
Rooms share files and folders, docs you write side by side, whiteboards, a thread and tasks with your team, peer to peer and end-to-end encrypted. No account, no server.
Mention anyone's DevCat Agent: it reads the room, takes tasks and suggests changes people accept or reject.
DevCat finds nested repositories and shows the commit graph, blame, branches, tags and stashes.
Fetch, pull and push from the same window.
PostgreSQL, MySQL and MariaDB, SQLite, SQL Server, MongoDB and Redis. Browse and edit tables, compare schemas and move data between them.
Connections go through SSH tunnels when they need to, and passwords stay in your system keychain.
Kubernetes with any kubeconfig context: workloads, logs, a shell in any pod, port forwards and Helm releases. RabbitMQ through its management API.
OpenVPN, WireGuard and SSH forwards, including a SOCKS proxy, with live traffic for each.
Link a Telegram or Discord chat to a project: Allow or Deny what the agent asks, send new requests, and get the answer and the files back.
DevCat Mobile for Android and iPhone does the same and more: reply, run a query or check a pod. It reaches your computer directly or through a relay that only passes encrypted traffic. No account to create.
Pick an installer from the latest release, or use a terminal. The scripts check the download's SHA-256 and install for your user only. New to DevCat? Start with First steps.
brew install --cask devcathq/devcat/devcatcurl -fsSL https://devcathq.github.io/DevCat/install.sh | sh -s -- --app& ([scriptblock]::Create((irm https://devcathq.github.io/DevCat/install.ps1))) -AppFor servers and SSH sessions: devcat serve shares your agents and connections with DevCat Mobile or a browser, without a window.
curl -fsSL https://devcathq.github.io/DevCat/install.sh | shirm https://devcathq.github.io/DevCat/install.ps1 | iex