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Phasethrive uses Claude AI to generate your personalized schedule. You'll need a free API key — it takes about 2 minutes to set up.
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Phasethrive helps you build a schedule that actually fits your life — not a template, but a plan tailored to the specific factors that shape your energy, focus, mood, and capacity on any given day.
Phasethrive draws on peer-reviewed research across several fields. Seasonal light changes affect brain chemistry, sleep, and mood in measurable ways across the year. Hormonal cycles and age — including perimenopause and menopause — shift cognitive capacity, emotional regulation, and recovery needs week to week. Neurological differences including ADHD and autism change the way energy is spent, recovered, and sustained. Chronotype, sleep, nutrition timing, movement, and social connection all interact to determine what a genuinely sustainable day looks like for a specific person.
Phasethrive was made by a neurodivergent woman, for neurodivergent women — but it can be used by anyone who wants to take a more complex and holistic approach to how they structure their time. If your life doesn't fit a one-size-fits-all schedule, Phasethrive was built for you.
All scheduling decisions are grounded in peer-reviewed research. View the research citations and evidence standards.
Phasethrive uses Claude, an AI by Anthropic. To generate your schedule you need a personal API key — a code that connects this app to Claude on your behalf.
sk-ant-Your API key and all answers stay in your browser only. Phasethrive never stores, sees, or transmits your data — your key goes directly from your browser to Anthropic to generate the schedule, and nowhere else.
New Anthropic accounts come with free credits to get started. If you find Phasethrive useful and want to use it regularly, those credits will eventually run out. At that point the simplest option is an Anthropic API subscription, which gives you a monthly credit balance to draw from at a low pay-as-you-go rate. There's no pressure — you'll know when credits run low because schedule generation will stop working, and you can add more at any time.
You'll need a Claude API key to generate your schedule. You can fill in the steps without one, but you won't be able to generate until it's set up.
Most of us are not struggling because we aren't trying hard enough. We're struggling because the tools, the schedules, and the advice available to us were designed for a version of a person that most of us have never been.
This started from a simple place. I wanted a life that felt balanced, not optimized. I wanted to stop waking up having neglected my friendships, my body, my sleep, and the things that actually make me feel like a person, because something always seemed more urgent. I wanted a framework that understood that rest is not laziness, that a social life is not optional, that some weeks your nervous system needs gentleness and some weeks it can handle more, and that none of this is weakness.
I also wanted something that understood what it actually feels like to live in a body affected by hormones, seasons, and neurodivergence, and in the particular loneliness of a generation that stays in close contact with people it almost never sees in person. We text constantly and hug rarely. We follow the lives of people we love through small rectangles of light and call it connection, and on some level it is, but something still goes missing in translation. A schedule that doesn't account for the human need for real presence, real rest, and real joy is just a more elaborate way of burning out.
The research Phasethrive draws on covers all of it. How your cycle phase affects your cognitive and emotional capacity. How the light available to you in January versus June changes your brain chemistry in measurable ways. How masking your neurodivergence costs energy that has to come from somewhere. How hobbies, nature, solitude, and face-to-face connection are not rewards for finishing your work but essential inputs to a functioning human life. This science exists and it is well funded and peer reviewed, but it is scattered across disciplines nobody expects regular people to read. Phasethrive reads it for you and applies it to your specific life.
A few ways to use Phasethrive with a lighter footprint
Once you've generated a schedule that feels right, you don't need to start from scratch every time. Generate a weekly or monthly plan rather than a daily one once you understand your patterns. Save your output and use it as a reference for several weeks before regenerating. When you do come back, copy your previous notes into the additional context field so Phasethrive isn't rebuilding your profile from zero. The more you bring forward, the less processing is needed, and the smaller the footprint of each use.
On what this costs
Every schedule generation uses server energy and a small amount of water for data center cooling. The calculator below shows honest estimates based on published research. They are not alarming numbers, but they are real ones, and you should have them.
Use Phasethrive when it serves you. Use it thoughtfully. That's the whole point.
Every block from your schedule is listed below. Edit titles, adjust times, delete what you don't need, add anything missing — then export as a .ICS file that opens in any calendar app (Apple, Google, Outlook, Samsung).