Your code stays on your server.
Projects, sessions and provider keys live on the machine you choose. Prompts and code context go only to the AI providers you connect.
Free · Self-hosted · Bring your own model
Your AI coding team,
on your own machine.
Koyd runs several AI agents on one project at the same time. File locks keep them out of each other's way, workflows repeat your process step by step, and the work keeps running on your server after you close the tab.
Server for Windows today, Mac and Linux soon. Use it from any browser, your phone included. Bring your own AI account or API key.
Run agents side by side.
Keep the work in one place.
Koyd handles the coordination. You set the direction and review the result.
01FILE LOCKS
One checkout. No stepping on toes.
Put one session on the API and another on the interface. They work in the same folder, and Koyd locks each file an agent is editing until its turn ends. No worktrees to create or merge back.
Agents are told which files another session holds.
How file locks work02WORKFLOWS
Write your process down once.
Plan, build, run the tests, review, then wait for your OK. A workflow runs the same steps every time, sends failures back with notes, and pauses wherever you want a human.
Turn on notifications and your phone tells you when a review is waiting.
See how workflows run03YOUR SERVER
Close the tab. The agents keep going.
Koyd Server runs on your own computer: a workstation, a spare PC, or a cloud server. The browser is only a window into it, so you can close it, switch devices, or check in from your phone while the work continues.
Connect several servers to one app and switch between them.
Choose where work runs
WORKFLOWS
Your process,
run the same way every time.
Describe the steps once: plan, build, test, review, approve. Koyd runs them on your server, loops back when a check fails, and stops to ask you where you said it should.
- Build it in the visual editor, or keep it as YAML in your repo so the team can review it like any other change.
- Start runs from Koyd, from the terminal, on a schedule, or from your own app through the Workflow API.
- Give each run its own branch, so your working copy stays untouched until you decide.
- Approve or send notes back from any paired device, including your phone.
- Built-in steps map what a run changed and split the work into clean commits.
Ship it
“Friendlier due dates” · own branch
- 0:41
Plan
AI step · Ask mode, no edits
- 3:12
Build
AI step · second attempt
- 0:24
Run tests
npm testfailed once, back to Build - 1:05
AI review
Reviews the diff · verdict: pass
- Waiting
Your review
Approve, or send notes back
Review from any paired device, or your phone.
Everything around the agents
Planning, review, a browser, project context, and a way to check in from your phone. It all lives in the same app, on the same server.
SWARMS
Hand a bigger goal to a team.
An orchestrator splits the goal into tasks, assigns them to specialist agents, and checks the result before it calls the job done. The built-in Forge team has a builder, an integrator, a tester and a reviewer.
How swarms workREVIEW
See exactly what changed.
Every turn lists the files it touched. Search all of a session’s changes, read highlighted diffs side by side, and discard what you don’t want. Then split the work into logical commits.
Reviewing agent workSHARED BROWSER
A real browser for your agents.
Agents test your app in Chromium on your server while you watch. Take over when it needs a person, like a sign-in, then hand it back. Screenshots and recordings stay with the session.
Using the shared browserCODE MAPS + MEMORY
Maps of how your code works.
Code maps explain a feature with links into the source, and flag links that drift as the code changes. Turn on memory for a project and agents keep its facts between sessions.
Code maps and memoryKNOWLEDGE BASES
Answers from your own docs.
Import files and web pages into local knowledge bases. Chats and workflow steps search them and list the sources under each answer.
Setting up knowledge basesPHONE + DEVICES
Check in from your phone.
Pair a phone over Wi-Fi with a QR code. The mobile layout keeps the message box above the keyboard, and a notification takes you straight to a review that is waiting for you.
Koyd on your devicesMODELS
Use the models you already pay for.
Connect Anthropic, OpenAI, GitHub Copilot, Google, OpenRouter, Amazon Bedrock and more, or your own compatible endpoint. Pick a model per session or per workflow step.
Providers and modelsTERMINALS + DATABASES
Terminals and SQL, next to the chat.
Server terminals you can reattach to from any device, and a SQL client for Postgres, MySQL, SQLite and SQL Server, right next to the conversation.
Tools in the workspaceTEAMS (BETA)
Pay for AI together as a team.
Pay for AI providers together, set budgets per person and per model, and share reviewed skills and agents. Everything syncs through storage your team owns.
How Teams works
KOYD APPS
Make the tools
you wish existed.
Ask an agent to build a small tool around the way you work, like a dashboard, a tracker or a review board. Save it as a Koyd App and keep improving it as your work changes.
Agents can use it too.
A saved app with a backend can offer tools to your sessions, so agents work with the same data you see in its interface.
Your data stays put.
Apps keep their data on your Koyd Server. Open them on your desktop or your phone, wherever that server is connected.
Give it its own AI.
Apps can hold private AI conversations, using the models, agents, skills and MCP servers you choose for them.
Nothing sits in the middle
There is no Koyd cloud between you and your work. The app talks straight to the server you installed.
No account to create.
Pair each device once with a link, a QR code or a one-time code. You can see every paired device and remove access at any time.
Free, with your own AI.
Koyd costs nothing to use. Your provider bills model usage to your own subscription or API key.
Signed releases.
The installer and every update check the release signature before anything changes. Updates install from a button in the app, after you read the release notes.
Questions, answered plainly
Short answers to what people ask first. Each one links to the guide with the details.
01COST & MODELS
Is Koyd free?
Yes. Koyd is free to download and use, and there is no account to create. Your AI provider bills model usage on your own subscription or API key.
Connect a modelWhich AI models can I use?
Models from any provider you connect, including Anthropic, OpenAI, GitHub Copilot, Google, OpenRouter, Amazon Bedrock, Mistral and xAI. You can also add your own endpoint that speaks the OpenAI, Anthropic or Google API. Different sessions and workflow steps can use different models.
Providers and modelsCan my team use Koyd?
Each person runs their own Koyd Server. Teams (beta) lets a group pay for AI providers together, with budgets and spending limits, and share reviewed skills and agents, synced through an Amazon S3 bucket or Azure Blob Storage container your team owns.
How Teams works02WHERE IT RUNS
Where does my code run?
On the computer running Koyd Server: your laptop, a workstation, or a cloud server. The browser or installed app is only the client, so closing it does not stop the agents. The server machine has to stay awake and online.
Where everything runsWhich systems does it run on?
The server installer is available for Windows today, and Mac and Linux installers are on the way. The app runs in any current browser on a desktop, tablet or phone, and you can install it like a regular app.
Download optionsCan I use it from my phone?
Yes. On the same Wi-Fi, open Settings → Instances → Get a browser link on the server computer, choose Enable sharing on this network, then Create setup link, and scan the QR code. Trust the server’s certificate once, then connect. Reaching the server from outside your network needs an HTTPS address you set up yourself.
Use another device on your network03HOW IT WORKS
What is the difference between a workflow and a swarm?
In a workflow you decide the steps in advance, and every run follows them. In a swarm you give a goal and an orchestrator plans the tasks as it goes. Workflows suit processes you repeat; swarms suit larger one-off jobs.
Swarm or workflowDo file locks prevent every conflict?
No. File locks coordinate Koyd’s own agent tools in a shared checkout. They do not stop other programs or your editor from changing a file. Review the changes before you commit, especially when other tools touch the same files.
How file locks workWhat are Koyd Apps?
Small tools you build with an agent and save in Koyd, like a dashboard or a tracker. Apps can keep data on your server, hold private AI conversations, and offer tools your agents can use in their sessions.
What a Koyd app isStill have a question?
The guides cover setup, workflows, swarms and teams step by step. If something is missing, write to us.