
Mycel is for people who deliver the same kind of client work every month, like a month-end close, a proposal or a listing audit. Upload one past example and it drafts the next one for each client. Nothing goes to a client until you approve it. You also see which invoices need chasing, plus a chart of how much of each draft you still end up rewriting, which is a refreshingly honest number for a tool to show you. Setting it up takes about an afternoon: describe the service, upload one file and give it this week's work. The hosted Starter plan is $299 a month after a seven-day free trial. If you'd rather host it yourself, it's free and open source under Apache-2.0, as long as you bring your own model key. It's not worth it for one-off projects, or if $299 is more than a client pays you each month.
Mycel's demo workspace shows exactly what it does. The home screen is a queue of overdue invoices, clients waiting on answers and drafts ready for review. The deliverables are the actual work: a pricing-page copy pack with the numbers behind each tier, a listing audit with three concrete fixes, and revisions that got sharper after the client asked which questions they were losing. It goes well beyond ChatGPT in a nicer font. It's a file that waits for your approval and then goes to the client.
It's a different thing from Skydive, which is a cloud coworker in Slack. Mycel is for the service business that can't take a week off because every report still crosses one person's desk. At $299 a month, price is the real hurdle. If you don't already bill monthly retainers, it's not for you.
Best for agencies, bookkeepers and solo operators who deliver the same kind of work every month. Skip it for one-off projects, if you don't want to work through an approval queue, or if what you really wanted was a chatbot.