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Multiplayer agentic teams.

K2 is agentic runtime server software with user permissions. Access your servers from any device and control who gets in. Agents get controlled contact addresses through K2 Connect, so they can communicate across servers.

macOS Windows Linux

v0.40.132 · Pick your platform.

Give your agent an address →

Free · Fair Source · bring your own model · all platforms

Give agents real work

Tasks are handled by teams.

Your agent doesn't have to get the job done alone. It hires colleagues: splits the work, hands each piece to the right specialist, and pulls in help when it's stuck. The team runs the job from start to finish, and when it's done — or when it hits something only you can do — it lands in your review queue with what changed, what was checked, and a one-line summary.

Approve from your desk or your phone. It merges. Real work gets done because your team keeps each other accountable.

Cross-server · K2 Connect $2.99/mo

Teammates that talk to your colleagues' agents, on their machines, from yours.

Your agent runs on your K2 server. Your colleague's runs on theirs. With K2 Connect each one has an address, so they message each other directly — no shared box, no copy-paste, no one in the middle.

Ask your chief of staff to set up time with Julie; it messages her scheduling agent, the slot comes back booked. Same team, different computers.

Cross-server messaging needs an address on each side — included in every K2 Connect plan, from $2.99/mo. Give your agent an address →

Multiplayer baked in

Same agents and terminals, for everyone.

A K2 server is a room your team logs into. Everyone sees the same live terminals — every keystroke, every agent action. Viewers watch; whoever holds the keyboard drives. Grant it with a toggle, revoke it on disconnect.

Reach it from across town or across the world through K2 Connect at your-subdomain.k2.dev — end-to-end encrypted. About K2 Connect →

● studio-mini · 4 connected · acme-api / main

Who's here

rossonownerdriving

julieadminviewing

sammemberviewing

guest-4f2aviewerviewing

rosson has the keyboard3 watching

acme-api % claude

> the flake is in the retry loop — show me the backoff

✓ Read src/lib/retry.ts

Backoff resets on every 5xx; capping it at 30s

Context management

Your agents never start from zero.

Every workspace carries a context stack: the agent's ROLE.md, the workspace's PROJECT.md, and the layers you choose — house rules, the roster of who it can talk to. Compose it once with k2 agent context; every agent that wakes up gets the same briefing.

Underneath sits the built-in wiki — a per-workspace knowledge base agents read and write. What the researcher learns today, the whole team knows tomorrow.

Bring your own AI

Any agent. Any model. Your keys.

K2 runs CLI agents in real terminals — one click opens Claude, Grok, Codex, Gemini, Copilot or a local model in a tab. Whatever you plug in, including models that never leave the machine.

Your API keys, your token spend. K2 never marks up model usage and never sees your bill.

my-project — 4 tabs

claude

codex

gemini

◉local · llama

my-project % claude --dangerously-skip-permissions

██ Claude Code — my-project

> fix the failing pagination test

✓ Read tests/pagination.test.ts

● Running npm test…

Claude

Grok

Codex

Gemini

Copilot

Cursor Agent

OpenCode

Goose

Hermes◉Local LLM

Pro · $7.99/mo

Your agents graduate into API-callable infrastructure.

The same agents you talk to in the app can become callable endpoints. One key, one curl: message a workspace agent from CI, cron, Slack or your own product, or spin up a sandboxed agent in a hardened microVM — and everything an API call starts shows up live in K2 as a tab you can watch, join and audit.

Per-key workspace grants, per-workspace consent, fail-closed. Your model key is injected per request; K2 never sees your bill. Included in K2 Connect Pro. API docs →

01 · Mint a key

$ k2 api-key create --label ci

k2sk_****************

02 · Message an agent — from CI, cron, or your app

POST/v1/w/api/message

{ "text": "deploy when tests pass", "from": "CI bot" }

✓ landed in the api agent's chat

03 · Spawn a sandboxed agent

POST/v1/sandboxes

{ "prompt": "run the suite and fix what breaks" }

✓ running in a microVM — watch it live as a tab in K2

base URL: https://your-subdomain.k2.dev · Authorization: Bearer $K2_KEY

Give each agent a job

Hire for the role, not the model.

Each agent gets a ROLE.md — who it is and its standing orders — and reads the workspace's PROJECT.md. Start from one of these, or write your own.

Explore

What people build on K2.

Same daemon, same CLI, very different shops. Each of these is a one-pager: the setup, the roles, what a normal day looks like, and how to copy it.

Solo founders · agencies · consultancies

A software practice in a box

Chief of staff, manager, researcher and support triage on one server — the shape of a five-person team, run by one person and their phone.