Ember — Keep your session warm

How it works

Hand it off at your desk. Pick it up at the campfire.

One handoff, three devices, zero babysitting. The build keeps burning while you're somewhere better than your chair.

1 Give it a repo + task

⌨️

Brief it from your laptop

Point Ember at a repo and describe the work. It clones, plans, codes, builds, and opens a PR — server-side on a per-session micro-VM. Or port a live local Claude Code / Codex session straight up.

laptop → cloud

2 It runs warm in your AWS

🔥

Close the lid

The session keeps running on an Amazon Bedrock AgentCore micro-VM with a persistent EFS workspace — banked and warm in your own account. Go outside. The loop doesn't need you.

your VPC · warm

3 Resume from any device

📱

Pick it up anywhere

Open a deep link on the web or your phone — same workspace, same context, still running. Course-correct over lunch, tap "ship it," then pull the grown session back home at night.

web · phone → home

💻 laptop──port──▶🔥 warm in your AWS──pull──▶📱 any device

Why Ember

The incumbents host it on their cloud. Ember runs on yours.

Same capability as Claude Code on the web or OpenAI Codex + Ona — minus the part where your source, secrets, and audit logs land in a vendor's account.

	Claude Code on the webAnthropic-managed	OpenAI Codex + OnaOpenAI-managed (acq. Gitpod)	Emberruns in your account
Where the agent runs	Anthropic cloud	OpenAI cloud	Your AWS account
Model choice	Claude only	OpenAI only	Claude · Codex · Bedrock
Does your code leave your account?	Yes	Yes	No
Who pays the LLM bill	Vendor subscription	Vendor subscription	Your plan ($0 marginal) or Bedrock
Audit logs & spend	In the vendor's system	In the vendor's system	Your CloudWatch / CloudTrail
Self-host / open source	No	No	MIT, one command

Warm sessions

A banked fire doesn't go out when you walk away.

WarmLive micro-VM, holding context and heat. Resume instantly. ~0.1¢/idle-min

IdleCoals dimming — workspace persisted to EFS, ready to flare back. parked

ColdGone out, nothing lost. Reopen and it rebuilds from the checkpoint. $0

Every session maps to a real warm/idle/cold state — it isn't a metaphor we bolted on, it's the mechanic. Close the lid and the embers hold their heat; reopen on any device and it flares straight back.

→Resumable everywhere. Persistent EFS workspace + deep links. Laptop, web, phone — same session.
→Bring your own plan. Connect the Claude Pro/Max or ChatGPT plan you already pay for — $0 marginal LLM cost.
→Or Bedrock, in-VPC. Pay-per-token, fully in your account, for compliance-restricted repos.
→Laptop ⇄ cloud handoff. port a live session up, pull the grown one back home.

Open-core

Free to self-host. Ready when your company is.

The core is MIT and stands up in your account in an afternoon. The enterprise tier adds the controls a security review asks for.

Self-host

MIT Core

Free · open source

Everything you need to run agentic coding in your own AWS account. One command, idempotent install.

✓ Claude Code + Codex on a warm micro-VM
✓ Bring your own plan ($0 marginal) or Bedrock
✓ Resumable sessions + live web terminal
✓ Laptop ⇄ cloud handoff (port-session MCP)
✓ One-command install.sh, account guard

Clone on GitHub

Enterprise

Ember for Teams

Talk to us · per-seat or Marketplace

The hardening path for company-wide rollout. Built to clear a platform/security review.

✓ SSO / SAML / OIDC + multi-tenancy
✓ VPC / PrivateLink network isolation
✓ Per-user secret isolation (KMS, Secrets Manager)
✓ Immutable audit export + cost governance
✓ Admin console + support SLA

Book a pilot

Close the laptop.
Your session stays warm.