Spacecake is live · free · last verified 30 Oct 2026 · viability monitor
Spacecake
Spacecake is an open-source desktop GUI for Claude Code with live context-window tracking for AI coding.
For anyone already paying for Claude Pro and living inside Claude Code, Spacecake is worth installing just for the context gauge. It shows usage percentage and running spend next to the model name, and the team's own guide argues quality drops near 60% capacity. The alpha caveat is real, but the price is zero.
Verdict generatedVerified 16h ago · liveness 51/100 · cite: rightaichoice.com/tools/spacecake
- Developers already running Claude Code on a Claude Pro plan
- Developers who prefer writing markdown specs before writing code
- Teams tracking multiple AI agent tasks with named owners
- Developers who want live context-window and cost visibility during Claude Code runs
- Teams that need multi-model support beyond Anthropic
- Developers who prefer a pure terminal with no GUI layer
- People who don't use Claude Code or lack a Claude Pro subscription
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Skip Spacecake if you need multi-model routing or work outside Anthropic's Claude Code workflow — it assumes Claude Code is installed and a Claude Pro subscription is active, so the app's $0 price does not cover the model access it depends on.
The app is $0/mo during public alpha, but it requires a paid Claude Pro subscription and a working Claude Code install, so the real recurring cost sits with Anthropic, not Spacecake.
Spacecake itself is $0/mo during public alpha, which makes it the cheapest way to get a GUI over Claude Code — but the total cost of ownership is a Claude Pro subscription plus the per-run spend shown in the in-app cost gauge. Compared with Cursor or GitHub Copilot, which bundle model access into their own paid tiers, Spacecake is cheaper on software and narrower on models.
In short
Spacecake — Spacecake is an open-source desktop GUI for Claude Code with live context-window tracking for AI coding. Best for Developers already running Claude Code on a Claude Pro plan, Developers who prefer writing markdown specs before writing code, Teams tracking multiple AI agent tasks with named owners. Free to use.
What is Spacecake?
Spacecake — Spacecake is an open-source desktop GUI for Claude Code with live context-window tracking for AI coding. Best for Developers already running Claude Code on a Claude Pro plan, Developers who prefer writing markdown specs before writing code, Teams tracking multiple AI agent tasks with named owners. Free to use.
Spacecake is a free, open-source desktop app that wraps Anthropic's Claude Code CLI in a visual shell. The workflow stays terminal-first — you still run Claude Code commands — but the fiddly parts move into a GUI: specs, plans, git, and agent tasks. It installs as a native build on macOS (Apple silicon and Intel), Windows x86-64, and Linux (.deb and AppImage).
Key features
- WYSIWYG markdown editor with Mermaid diagram rendering and live checklists
- Integrated terminal streaming Claude Code output in the same window
- Real-time context-window monitor showing usage percentage and running cost
- Agent task board with pending, in-progress, and completed columns
- Named agent task ownership (agent-1, agent-2) with drag-and-drop between columns
- Git panel: commit, amend, push, pull, and branch management
- Change tracking with file diff status (M, U, D, A) and commit history
- Per-project CLAUDE.md system prompt editing in-app
- JSON stack configuration for coding conventions (stack, style, tests)
- ship-faster.md template covering research, plan, and implement phases
- Plan mode support separating read-only research from code execution
- Claude Code model alias configuration, including the opusplan alias
- Cross-platform desktop builds: macOS (Apple silicon and Intel), Windows x86-64, Linux (deb and AppImage)
- Open-source codebase
- Dark, light, and auto theme selection
Behind the verdict
Where Spacecake actually earns its place is the moment the CLI stops telling you enough. A raw terminal shows tokens moving but not how close you are to the quality cliff. Spacecake's live readout — model, percentage, current cost — is the single feature we'd reach for first, and it's why we'd pick this over a plain terminal wrapper. Second reason to install: markdown plans that render. WYSIWYG editing with Mermaid diagrams and checklists means specs are readable, not just runnable. If you already write plans before code, that's a real workflow fit rather than decoration. The git panel is the quiet workhorse. Commit, amend, push, pull, branch management, and diff statuses (M, U, D, A) with history cover the loop most Claude Code sessions revisit constantly. Nothing exotic, just fewer context switches. The agent task board is where the scope narrows. Pending, in-progress, and completed columns with named owners (agent-1, agent-2) and drag-and-drop are useful once you're coordinating more than one agent. For a single agent it's overhead you can skip. When to pass: if you need multi-model support, this isn't Cursor or GitHub Copilot — Spacecake is Anthropic-only and assumes Claude Code and a Claude Pro plan already exist. Pure-terminal people will find the visual layer unnecessary. And the March 22 updater fix for data loss is a reminder that public alpha software still earns stability, so don't put it in front of critical production work without a fallback. Closest alternative: staying in the raw CLI and adding your own context-tracking scripts.
Models under the hood
as of 2026-10-24
Limitations
- Spacecake is an open-source desktop GUI layered on top of Anthropic's Claude Code CLI, so it is only useful if you already have a working Claude Code install and a Claude subscription; the app being free does not make the underlying service free.
- It is currently labeled a public alpha, and the recent changelog is bug fixes rather than features — a March 22, 2026 fix for data loss in the updater and a March 21, 2026 fix for popovers closing unexpectedly — so stability is still being earned.
- Claude Code's context quality degrades at around 60% capacity, per Spacecake's own 2026-03-26 guide; the in-app context monitor surfaces that threshold but does not eliminate it.
- It targets Anthropic's models only, so multi-model routing is out of scope.
as of 2026-10-10
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Is Spacecake still active?
Spacecake is live · free · last verified 30 Oct 2026 · viability monitor.
Viability score
How well maintained and how widely used is Spacecake? Built from what the vendor actually publishes (docs, changelog, tutorials, integrations, pricing), whether the site is live, and how much real users discuss it. How we calculate this
Last calculated: October 2026
How we score →What do users say about Spacecake?
What people actually say about Spacecake — is it worth it?
Our community sentiment research written Jul 3, 2026 is more than 90 days old, so it is being re-reviewed against current data and is not shown.
How we verified this
Every listed fact about Spacecake — pricing, features, links, status — is re-read from the vendor's own pages by our verification pipeline and each change is logged with a date; the last pass ran on 30 Oct 2026. Pages mix model-assisted synthesis with human review; see how we verify.
Verification history
We have re-verified Spacecake 11 times since . Each pass re-reads the vendor's own pages and re-checks every listed field against that evidence; passes where nothing had changed are marked as such.
- — changed pricing tiers, description, features, our verdict, summary
- — changed who should skip it, who it suits, our verdict, features, description, summary, pricing tiers
- — changed limitations, description, our verdict, hidden costs, switching in, switching out, models, who should skip it, pricing fit, setup time, summary, use cases
- — changed features, description, who it suits, our verdict, who should skip it, summary, pricing tiers
- — changed limitations
- — changed switching in, limitations, who it suits, switching out, models, use cases, who should skip it, description, pricing tiers, pricing fit, summary, setup time, our verdict, features, hidden costs
Showing the 6 most recent of 11 verification passes.
Free to cite with attribution — this page re-verifies continuously.
How much does Spacecake cost in 2026?
Spacecake: Free to use. Pricing last verified 30 Oct 2026.
Plans compared
Every published Spacecake tier, its price as the vendor publishes it, who it fits, and what it adds over the tier below. The 12-month cost projection follows.
| Plan | Price | Billing | Who it's for |
|---|---|---|---|
| Public Alpha | Free | — | Solo developers and small teams already running Claude Code on a Claude Pro plan who want a free, inspectable GUI — including open-source contributors happy to run alpha software.Adds: Starting tier and currently the only tier: $0/mo for the full desktop app, WYSIWYG editor, integrated terminal, context monitor, agent task board and git integration, with no paid plans published. |
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Where the pricing makes sense
The company stage and team size where Spacecake's pricing actually pencils out — and where peers do it cheaper.
Spacecake itself is $0/mo during public alpha, which makes it the cheapest way to get a GUI over Claude Code — but the total cost of ownership is a Claude Pro subscription plus the per-run spend shown in the in-app cost gauge. Compared with Cursor or GitHub Copilot, which bundle model access into their own paid tiers, Spacecake is cheaper on software and narrower on models.
Has Spacecake's pricing changed?
No plan price for Spacecake has moved since we began logging in Aug 2026; the pricing page is re-read on every verification pass.
Who should pick Spacecake?
Pick Spacecake if you are Developers already running Claude Code on a Claude Pro plan, Developers who prefer writing markdown specs before writing code, Teams tracking multiple AI agent tasks with named owners, Developers who want live context-window and cost visibility during Claude Code runs.
Look elsewhere if you are Teams that need multi-model support beyond Anthropic, Developers who prefer a pure terminal with no GUI layer, People who don't use Claude Code or lack a Claude Pro subscription, Anyone unwilling to run public-alpha software on a primary machine.
Skip it if Skip Spacecake if you need multi-model routing or work outside Anthropic's Claude Code workflow — it assumes Claude Code is installed and a Claude Pro subscription is active, so the app's $0 price does not cover the model access it depends on.
GeneratedReal-world workflow fit
Concrete scenarios for the personas Spacecake actually fits — and what changes day-one when you adopt it.
You open Spacecake, edit CLAUDE.md and the JSON stack block (next.js, functional, vitest) so Claude's suggestions match your conventions, then write a feature spec in the WYSIWYG editor with a Mermaid flow diagram and checklists.
Outcome: You run the spec through Claude Code in the integrated terminal while the context monitor shows '🧠 67% | 💰 $4.20', so you know when to compact or restart before quality drops past the 60% threshold.
You put three tasks on the board — create database schema (agent-1), build API endpoints (agent-2), add unit tests (pending) — and drag them from pending to in progress as each agent picks up work.
Outcome: You review the file diff statuses (M, U, D, A) in the git panel and commit the finished work without leaving the app or losing track of which agent produced what.
You use plan mode to keep Claude in its read-only research state, let it draft a structured plan across the affected files, and review the plan before approving execution.
Outcome: You catch cross-cutting concerns while the change is still a document rather than a diff, and the ship-faster.md template gives you a research → plan → implement skeleton to repeat the process.
Use cases
- Write a markdown feature spec with Mermaid diagrams in the editor, then execute it through Claude Code in the integrated terminal.
- Watch the context gauge to act before Claude Code hits the 60% capacity point where its output quality degrades, per Spacecake's 2026-03-26 guide.
- Track multiple agent tasks on the board with named owners like agent-1 and agent-2, review status, and commit the results through git integration.
- Edit CLAUDE.md visually and iterate on project conventions without leaving the app.
- Review file diffs (M, U, D, A) and commit history in the side panel after Claude Code finishes a generation task.
- Use the ship-faster.md template to run research, plan, and implement phases in order.
- Set a JSON stack config (e.g. next.js, functional style, vitest) so Claude's suggestions match your toolchain.
- Configure the opusplan alias so planning runs on Opus 4.6 and implementation drops to Sonnet 4.6.
Setup time & first value
How long it actually takes to get something useful out of Spacecake — broken out by persona, not the marketing-page minute.
Solo developer already on Claude Pro: install the dmg, exe, .deb or AppImage, point it at your Claude Code install and you are editing CLAUDE.md within 15–30 minutes. Teams: add an hour to align on the JSON stack block and task-board conventions, since agent ownership naming (agent-1, agent-2) works best when everyone agrees on it upfront.
Switching to or from Spacecake
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- →From a terminal-only Claude Code setup: install Spacecake and keep using the same Claude Code CLI underneath — the integrated terminal streams the output you already know.
- →From hand-edited CLAUDE.md files: open the per-project CLAUDE.md in the visual editor and add the JSON stack block for stack, style and test conventions.
- →From ad-hoc prompt notes: convert them into markdown specs in the WYSIWYG editor with Mermaid diagrams and checklists.
- →From scattered task tracking: move in-flight AI work onto the agent task board with named owners rather than tracking it in a separate tool.
- ↗To Cursor: if your team needs multi-model support beyond Anthropic, Cursor is the alternative Spacecake's own comparison posts point to.
- ↗To GitHub Copilot: for IDE-native completions in an existing editor rather than a separate desktop app.
- ↗To plain Claude Code in a terminal: everything Spacecake surfaces (including the context gauge) is a layer over the CLI, so you can drop the GUI without changing your underlying workflow.
Integrations
Resources & guides
Tutorials & Learning
YouTube returned 6 videos for “Spacecake”, and we withheld 6: 6 could not be judged, because “Spacecake” is a single word that other videos use for other things. We are showing none, because we could not prove any of them are about Spacecake.
Official links
What are the best Spacecake alternatives?
The closest alternatives to Spacecake we list are GitHub Copilot, Cursor and Ui Ux Pro Max Skill. Ranked by direct product-type match, not category overlap.
| Alternative | Pricing | Starts at | Last verified |
|---|---|---|---|
| GitHub Copilot | Freemium | Pricing not published | — |
| Cursor | Freemium | Pricing not published | — |
| Ui Ux Pro Max Skill | Free | Free | — |
Alternatives to Spacecake
View allGitHub Copilot
GitHub's AI coding agent for inline completion, delegated pull requests, code review, and recurring agent tasks across your repos.
Cursor
Cursor is an AI coding agent that plans, builds and ships features from your editor, CLI, Slack, GitHub and iOS.
Ui Ux Pro Max Skill
Free open-source design-intelligence skill that feeds UI styles, palettes, fonts, and chart rules into Claude Code, Cursor, and other AI coding assistants.
Tools that pair well with Spacecake
Common stack mates teams adopt alongside Spacecake, with the specific reason each pairing earns its keep.
GitHub Copilot
GitHub's AI coding agent for inline completion, delegated pull requests, code review, and recurring agent tasks across your repos.
Cursor
Cursor is an AI coding agent that plans, builds and ships features from your editor, CLI, Slack, GitHub and iOS.
Ui Ux Pro Max Skill
Free open-source design-intelligence skill that feeds UI styles, palettes, fonts, and chart rules into Claude Code, Cursor, and other AI coding assistants.
Spacecake vs its closest rival
Spacecake's closest head-to-head is with Locus Robotics — These tools serve completely different domains: Locus Robotics automates physical warehouse picking with AMRs, while Spacecake enhances the developer coding workflow with a visual Claude Code interface. Choose only if you need physical robot automation; choose Spacecake if you're a Claude Code user wanting a GUI. Verdict generated
Head-to-head comparisons
Spacecake vs Locus Robotics
These tools serve completely different domains: Locus Robotics automates physical warehouse picking with AMRs, while Spacecake enhances the developer coding workflow with a visual Claude Code interface. Choose only if you need physical robot automation; choose Spacecake if you're a Claude Code user wanting a GUI.
GeneratedSpacecake vs Presto Voice
If you run a QSR chain and need proven, enterprise-grade voice AI to boost revenue and efficiency, Presto Voice is the clear choice—but comes at a price. For developers already using Claude Code and wanting a structured, visual interface without extra cost, Spacecake offers a powerful free solution. These tools serve entirely different worlds; pick based on your domain.
GeneratedSpacecake vs Truleo
Truleo is purpose-built for law enforcement to extract leads from siloed data, while Spacecake is a developer tool that enhances Claude Code with a visual interface. Your choice depends entirely on your domain: if you're in policing, choose Truleo; if you're a coder, choose Spacecake.
GeneratedFrequently asked questions
Best-of guides
Used Spacecake? Help shape our editorial sentiment research.