Open the editor and describe the board — the AI is included, with no key or account to set up. Claude designs while the verification gate checks.
trycherryblossom.com/app opens the editor with no install. You start on an empty 50 × 50 mm board called Untitled Circuit.
The agent designs your board in a cloud workspace that keeps running after you close the tab, so it needs to know whose account it belongs to. Type your first prompt whenever you like — pressing send asks you to sign in. A free account gets 150 AI actions a day and there are never third-party credentials to provide. Your first Pro subscription includes a 5-day trial.
Open the AI Assistant with the chat button or Ctrl/⌘ L and describe what you want to build. Try “Design a 555 timer LED blinker” or “Add an ESP32 with USB-C power”. Claude edits the circuit live while it finds parts, footprints, and datasheets.
After every AI edit, the gate reports either Circuit validated: no errors or a concrete issue such as an unconnected pin or missing footprint. It does not auto-fix; ask Claude to address each flag.
Switch between Schematic, PCB, 3D, and BOM tabs. The PCB view includes select, move, route, autoroute, and a DRC inspector. Want the raw source? Settings → Advanced → Show Code tab reveals the circuit's TSX.
Select Export for a KiCad project, Circuit JSON, or a BOM CSV — open formats, so the board leaves with you. There is nothing to save by hand: the agent writes every change straight to your account.
Managed AI is included on every plan, with no API key to connect. A free account gets 150 AI actions a day and 1M credits a month; Pro raises that to 600 actions a day and 4M credits a month, and Ultra is 8× that again plus the frontier model (Sakura 2 High). On Pro and Ultra you can turn on on-demand usage to keep working past the included allowance at $5 per 1M credits. The chat explains when you reach a limit and when credits reset.
Your boards live in your Cherry Blossom account — the files, the built board, and the history of every agent run — so a design is there on any machine you sign in from, and a run keeps going after you close the tab. They are private to your account, and Export takes a copy out at any time in open formats.
This is an early beta with weekly releases. Tell us in Discord if something breaks — and keep an eye on what the agent builds before you send a board to fab.
Stuck or found a bug? Ask in the Discord, which both founders read, or email us directly.
Schematic, PCB, Gerbers and BOM. No API key, no card.
