999.dev logo999.dev

Your AI Teammate That Actually Ships Code

999.dev integrates with your existing tools, communicates naturally, and helps your team deliver faster by handling development tasks from Slack to GitHub.

Start Shipping Faster

See 999.dev in action.

Seamless Stack Integration

999 connects to the tools you already trust (Slack, GitHub, Linear) and works quietly in the background to keep your projects moving.

Slack
Live
Slack integration demo
999 lives in Slack. Ask questions, assign tasks, and get updates in the same place you work. No switching tabs. No extra noise.
Linear
Coming Soon
Linear integration demo
Coming soon: 999 will file tickets, update statuses, and keep your backlog in sync without you lifting a finger.
GitHub
Coming Soon
GitHub integration demo
From branches to pull requests, 999 will handle your GitHub workflow. It writes code, opens PRs, and checks in when needed.

How 999 Fits Into Your Workflow

No new systems. No switching tools. 999 plugs into your Slack and existing stack, learns how you work, and helps you ship faster without the overhead.

1. Connect Your Stack

Link Slack, GitHub, Linear, and the tools you already use. Setup takes minutes. No new dashboards. No new habits.

Connect Your Stack demo

2. Talk to 999 in Slack

Ask for help, delegate tasks, or just stay in the loop. 999 responds like a teammate. It keeps context and adapts to how you work.

Talk to 999 in Slack demo

3. Let It Handle the Glue Work

999 files tickets, writes code, opens pull requests, and keeps your backlog moving. It takes action when it can, and checks in when it should.

Let It Handle the Glue Work demo

Powerful Features, Seamless Experience

999.dev is packed with features designed to make your development lifecycle smoother and more efficient.

Real-time Slack Communication

Converse naturally with 999.dev in your Slack channels for instant collaboration.

Automatic Ticket Creation

999.dev intelligently creates and updates Linear tickets based on discussions.

GitHub Branch & PR Management

Automates branch creation, PR submissions, and status updates on GitHub.

Code Generation & Review

Assists in writing boilerplate code, suggesting improvements, and performing initial reviews.

Team Workflow Integration

Adapts to your existing development processes and team conventions.

Smart Task Prioritization

Helps identify and focus on critical tasks to improve team velocity.

Teams Are Already Using 999

From solo builders to full-stack teams, 999 is quietly becoming the AI teammate devs trust to move faster.

"999 is like having a senior dev on-call who never gets tired. It handles the glue work so my team can focus on the hard stuff."

De

Dev Lead @ TechCorp

"I ask it to open a PR or create a ticket, and it's done. I barely leave Slack now. It's fast, accurate, and easy to trust."

Sa

Sarah M., Engineer

"We're building fast, and 999 fits right into our workflow. Linear and GitHub support can't come soon enough."

CT

CTO @ StartupX

1,500+ Developers on the Waitlist

Join them and see what it's like to have a teammate who never drops the ball.