Evernote Notes app with a memorable second-brain pitch. Visit ↗
BYOB New inbox in every project
Codex, Claude, and Gemini Integration
You do not have to leave your terminal to build on BYOB. Dedicated installers connect OpenAI Codex, Anthropic Claude Code and Google Antigravity to your BYOB account, so the agent you already trust can work on the hosted project.
Runs on the stack you trust
Prompt to product
From one-line brief to finished app.
Compare the one-line brief with what BYOB ships. Real layout, data, and deploy status, editable from the same workspace.
TD
Team Tasks
Shared task tracking
Today4
Done11
Streak6d
Open live app ↗
Drag the handle. Or focus it and use the arrow keys.
Get inspired
Sites like this, live today.
Real sites that do it well. Build something like this with BYOB.
Fresh from the community
See what builders ship, or start from an example.
Live workspace
Code, chat, and preview in one place.
The workspace is built for repeated product work, not disposable demos. Every generated file stays inspectable, every change is visible, and every follow-up can target the exact part of the app you care about.
01 · EDITOR
Generated code, ready to edit.
Every file BYOB writes stays visible and editable. Follow-ups target the exact lines you care about instead of regenerating from scratch.
- Added lines highlighted the moment they land
Code
Act mode TodoPage.svelte
schema.ts
1
<script lang='ts'>2
type Task = { id: string; title: string; done: boolean
}3
let tasks = $state<Task[]>([])4
5
function toggleTask(id: string) {6
task.done = !task.done // just added by BYOB7
}8
</script> main · 0 problems Preview ready
02 · AI COMMAND
Plan, build, and refine in one chat.
Describe the outcome once. BYOB turns it into a build plan, implements it step by step, and keeps every change visible while you iterate.
- Build plan with live progress you can inspect
B BYOB AI
Chat Act
Your prompt
“Build a todo app for beginners”
Build plan
80%- Task list UI + empty state
- Add + toggle actions
- Progress summary…
Add due dates and filter by done…
03 · LIVE PREVIEW
See every change the second it lands.
The preview updates as BYOB works, with deploy status attached, so the path from edit to production stays inspectable.
- Real app state, not a static mockup
Live preview
/TD
Team Tasks
Shared task tracking
Progress 2 of 3 done
- Wireframe landing page
- Task list component
- Responsive polish + QA
Ask BYOB to refine
Deployed · SvelteKit · SSL on
Prompt to app
From first prompt to a workspace you can ship.
Start conversationally, approve the shape, let Tool Mode implement, then refine and deploy from the same workspace.
- 01 Describe the product Start with the outcome, audience, and any constraints. BYOB turns the idea into a practical build plan.
- 02 Shape the UX Review the proposed flows, screens, data needs, and visual direction before code starts moving.
- 03 Generate the app Tool Mode writes SvelteKit code, connects integrations, and keeps each change visible in preview.
- 04 Test and refine Ask for edits, roll back when needed, run checks, and keep the project editable instead of disposable.
- 05 Deploy Ship the finished app, connect domains, and keep iterating from the same workspace.
Agent and backend
Code with your agent, ship with a real backend.
Connect Codex, Claude Code, or Antigravity to your project, then store data and ship to production without leaving the workspace.
- Approve project access from BYOB
- Installs the byob command
- Preview, deploy, git diff, DNS, credits, and code tools
npmnpx -y byob-cli codex installApprove only the projects your agent can touch, then read context, edit files, inspect diffs, test previews, and roll back from your terminal.
- 1
- prompt to start
- 3
- live panes
- 24/7
- edge preview
Loved by builders
Rated 4.9/5 by developers and founders using BYOB to move from idea to shipped product.
Built for shipping
The parts that usually slow you down are already here.
BYOB handles product planning, implementation, preview, testing, database work, and deployment from one focused interface, with coding-agent access and production analytics when you want to keep working from your own terminal.
This part is hands-on. The cards drift until you touch them. Drag to rearrange, or press and hold one to feel it push back.
Agent integrations
Give Codex, Claude Code, or Antigravity scoped access through BYOB CLI or Agent MCP. Your agent reads context, edits code, tests previews, and deploys from your terminal.
Git history and diffs
Every change lands as a commit. Inspect history, compare diffs, and see exactly what changed since the last deploy.
Inbox in every project
Every project ships with an inbox. Collect messages, leads, and feedback from your app without wiring a third party.
Email sending built in
Send magic links, OTP codes, and transactional mail from your own sender address. Resend-backed, no SMTP setup.
Google and magic-link login
Offer Continue with Google plus passwordless email codes. Sessions and callbacks are handled.
Custom domains and SSL
Point your domain at BYOB with guided DNS checks. Certificates are automatic.
Visual editing
Click any element in the live preview and describe the change. Copy, spacing, color, behavior.
AI testing agent
Run full-site or feature checks and get implementation-level feedback you can apply in one step.
Version rollback
Step between saved states or redeploy a known commit when an experiment goes sideways.
One-click deploy
Builds publish to production hosting in one step. Deploys can auto-save the project state first.
Deployment analytics
Worker traffic, errors, CPU timing, subrequests, and custom-domain status from the workspace.
Supabase aware
Connect Supabase and BYOB reads schemas, drafts migrations, and generates types that match your app.
Team collaboration
Invite people in and keep sessions coordinated so work never overwrites work.
- Vision inputs
- Voice coding
- Project templates
- SEO-ready output
- Context tracking
- Model lock
Simple pricing
Start with credits, upgrade when usage is steady.
Pay as you go when you are exploring. Move to Pro or Max when BYOB becomes part of your regular build workflow.
Pay as you go
$0
$1 = 100 credits
Pro
$25
2,000+ credits/mo
Max
$79
8,000+ credits/mo
Live estimator
What will your app cost?
Try the cost calculator. Drag the pages slider, toggle the options, and watch the agency quote vs BYOB update instantly.
Open full cost calculator →Number of pages: 5
Traditional agency estimate
$5,750 upfront
Yearly maintenance
~$1,150 / year
BYOB estimate
~$45 in credits
BYOB builds the same site from one prompt and hosts it on the edge. Planning estimates, not quotes.
See BYOB plansView full pricing
Need white-label and SSO? Talk to us →
BYOB installs into Codex, Claude Code and Antigravity through one-command MCP setups: byob codex install, byob claude install and byob gemini install. Each authenticates with OAuth, registers the BYOB MCP server, and syncs BYOB skills so the agent can manage projects, deployments and domains.
One protocol, three agent homes
Codex, Claude Code and Antigravity are different products, but they share one integration surface: Model Context Protocol. BYOB exposes its project operations as MCP tools, and the installers simply teach each agent where that server lives. Authorization happens once through an OAuth device flow, stored locally by the CLI, so the grant belongs to your BYOB account rather than to a single agent. Because the underlying contract is the same, the developer experience is consistent even though the clients look nothing alike.
What each installer writes
Running byob codex install registers the server with Codex and writes the equivalent config when the executable is missing. byob claude install adds the server at user scope or merges the entry safely into Claude's JSON config. byob gemini install targets Antigravity and writes its MCP configuration, while Antigravity discovers skills from the shared agents directory automatically. In every case the installer also drops the platform skill and coding skills into the folders that client scans.
Codex is the deepest integration
Codex gets two extra modes. A BYOB-billed remote session connects a local terminal UI to the coding agent running inside the project container, with model usage charged to BYOB credits. Local Codex billed instead opens the project as an SSH workspace so Codex App edits the real files under its normal tools. A doctor command reports what is actually available for the selected mode, which matters when a workspace lacks a runtime or a connection has rotated. Other agents use the shared workspace path for edits.
Claude Code and Antigravity at the control plane
For Claude Code and Antigravity, the MCP connection is the project control plane. It carries project context and status, plus deployment, rollback, billing, environment, domain, testing and analytics operations. When the agent session exposes direct file tools, those can edit the remote container; when it does not, edits go through the shared SSH workspace helpers. That split is deliberate and worth understanding before assuming any connected agent can rewrite files directly.
Choosing an agent, honestly
All three integrations can read project context and run lifecycle operations. Codex offers the richest editing and billing modes, while Claude Code and Antigravity rely on the shared workspace for source changes. Agents outside these three are not locked out: any client that accepts a standard command, arguments and environment entry can start the BYOB MCP server. What you should not expect is identical behavior across every client, because each one surfaces tools and files differently.
FAQ
Frequently Asked Questions
Which coding agents does BYOB support?
First-class installers exist for OpenAI Codex, Anthropic Claude Code and Google Antigravity, and any other MCP-capable client can connect through a standard server entry.
Does BYOB work with Google Gemini?
Yes, through Antigravity, the Google DeepMind agent; the gemini installer writes its MCP configuration and installs the shared BYOB skills.
Can I connect more than one agent to the same project?
Yes. Use one MCP server entry per project and per client; each command or server should name exactly one project to avoid ambiguity.
What can a connected agent actually do?
It can read project context, check status and billing, deploy or roll back, manage domains and environment keys, run tests and analytics, and edit source when file tools or the shared workspace are available.
Is the integration the same for all three agents?
The protocol and skill layer are shared, but the installer, config location and Codex-specific workspace and billing modes differ by client.
Build the first version today.
Start with one clear prompt. BYOB will help turn it into a product you can inspect, edit, test, and ship.