Frederick
Frederick AI · Coding · Productivity
Frederick is an AI agent platform where agents build the apps your company needs and then keep running the work around them. Instead of handing you a chat box, it gives each agent a shared company memory, its own browser, and a sandbox to write code in. The same agent that ships an internal tool can later run the recurring work that used to follow it. Teams use it to build apps with AI, covering small internal tools and full customer-facing products alike. The free plan means you can test the whole loop before paying anything.
About Frederick
What Is Frederick
Frederick is a workspace for building and running software with AI agents. The pitch is simple: you describe what your company needs, an agent writes and publishes the app, and then the same agents keep operating it. Every app lands on a live link the moment it's built, so there's nothing to deploy by hand.
Most agent tools stop at generating code. Frederick pushes past that. Agents get somewhere to run. A coding sandbox handles the building, a browser sandbox handles clicking and typing on outside services, and background agents handle jobs that need to fire on a schedule. The company context layer ties it together. Plans, research, decisions, and files live in one place, and every agent reads from it.
The catch is that this is a young product, and the free tier is genuinely limited in ways you'll notice within the first week of real use. You get 15 AI credits on sign-up and two apps to start with. Credits expire at the end of each month, so unused ones don't roll over. Want recurring background agents or a full browser sandbox? You're looking at the paid tiers.
Getting Started
- Sign up at app.frederick.ai with an email; the free plan needs no credit card.
- Fill in your company context so agents know what you do, who you serve, and what matters right now.
- Describe the app you want in plain language and let the coding agent build and publish it to a live link.
- Test the published link, then connect the background and browser agents you need for ongoing work.
- Upgrade when you hit the credit or app limits on the free tier.
Product Information
A quick look at Frederick's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Founders and small teams
- Non-technical operators
- Product and engineering teams
Tasks
- Building internal tools
- Automating recurring work
- Operating external services
Scenarios
- A solo founder who needs a customer portal live this week and no time to wire one up.
- A team tracking projects and company context in one shared space instead of scattered docs.
- Setting up long-running tasks, like monitoring a staging app or drafting content on a schedule.
Key features
Agent-Built Apps
You describe what you need, and the coding agent writes the app and publishes it to a live link. From internal tools to full products, everything is ready for your customers, your team, and other agents to use immediately. No separate deploy step to babysit. That's the point.
Shared Company Context
It stores plans, research, decisions, and files in one shared place so that agents actually remember what your company is about across every task they touch. That context rides along on every task. You're not re-explaining your business each session. It improves as the company learns.
Background Agents
You can schedule recurring jobs or kick off long-running tasks and walk away, and the agents work in the background and report back when the whole thing is done. That's how a weekly report or a nightly test run happens without you staying in the loop.
Agent Computers and Browser Sandbox
Every agent can open a browser and use external services the way a person would: clicking, typing, and uploading files. This is what lets an agent finish a workflow on a site that never exposed an API, handling the clicks and the typing and the file uploads that would otherwise take you an afternoon to do by hand.
Multiplayer Workspaces
People and agents work in the same shared session. You can hand an agent a piece of positioning and watch it read and edit the page. Then you add your own changes alongside it. It feels closer to a shared document than a prompt-and-wait tool.
Coding Sandbox
Agents get a sandbox to build and test in before anything goes live. Code gets written, checked, and corrected there. Broken builds stay away from your published links.
Pros and cons
Pros
- Free tier covers the full build-and-publish loop, so you can judge it before paying.
- Agents run in the background, which means recurring work keeps moving while you're offline.
- The browser sandbox lets agents handle services that have no API, a limit many agent tools share.
- Shared company context cuts the setup time on every new task.
- Apps publish to live links immediately, with no separate deployment work.
Cons
- Credits expire at the end of each month, so you can't bank them for a busy stretch.
- The free plan allows only two apps and one-time background agents, which is tight for real use.
- There's no public API information, so teams planning to integrate it programmatically can't confirm support yet.
- Browser and coding sandboxes are capped on the free tier, so heavier automation needs a paid plan.
Frequently asked questions
It builds apps from a plain-language description and then runs the ongoing work around them. Agents can code, publish to a live link, open a browser to use outside services, and run background jobs on a schedule.
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