“How much have we collected?”
Milton AI gives you the figure first, then offers to narrow it. Paid only, still owed, or the split by event.
For small nonprofit event teams
Bring registrations, parade plans, volunteers, and board reporting together. So your community event doesn’t have to live in your head.
No platform cost to your organization. We help build your first year.

The work behind a good event
Your festival and your parade may share a team, a season, and half the same participants. Your tools should be able to keep up.
Step 1 of 8
Applications, payment records, and required documents stay connected to the people they belong to.
Explore registration
Step 2 of 8
Keep sponsorship purchases, included spaces, and promised benefits together, with a clear view of what still needs doing.
Explore sponsorships
Step 3 of 8
Keep track of your vendors and their booth assignments, with a map that shows where everyone belongs.
Explore event maps
Step 4 of 8
Every vendor credentialed and checked in, without the chase.
Explore vendor coordination
Step 5 of 8
Agreements that arrive with the registration, not three weeks after it.
Explore contracts
Step 6 of 8
Bring shifts, assignments, check-in, and recorded hours into one place, so you can see where help is needed.
Explore volunteer coordination
Step 7 of 8
Build your lineup, arrange staging, and prepare the signs and instructions your team needs on parade morning.
Explore parade operations
Step 8 of 8
Bring the numbers behind your event into reports you can review, print, and share without rebuilding a spreadsheet.
Explore reporting


Meet Milton AIThe AI assistant inside Karsenics
Milton AI is an AI assistant built on a large language model: Claude, from Anthropic. Ask about your event in your own words, and it answers from what your organization has loaded into Karsenics, like your setup, your registrations and money, and the agreements you upload. Your organization can turn it off at any time.
AI can make mistakes. Your automated emails come from Milton, which does not use AI. How Milton and Milton AI handle your data
Meet Milton AI in a walkthroughMilton AI gives you the figure first, then offers to narrow it. Paid only, still owed, or the split by event.
See issues across registrations, volunteers, and sponsors, with steps that take you to the relevant work.
Review your event’s financial picture and the records behind it, then print or export what you need.
See reportingA smaller team shouldn’t mean a bigger burden
We’re two event directors with roughly thirty years of combined experience. We built Karsenics around the work we know, including the part where someone has to help you get started.
Why we built KarsenicsTell us how your season works, who takes part, and where the spreadsheets are wearing thin.
We help shape your registrations, requirements, deadlines, and event-day arrangements.
We work through the setup with you so your team knows where to go and what to do next.
The money question, answered
The organization gets the platform without a platform charge. Participants pay the Karsenics fee when they register.
$0
Registration, parade operations, volunteer coordination, reporting, and help building your first year.
8%
Never less than $5 or more than $60, and nothing on a free registration. The Karsenics part of one Service & Processing Fee, shown at checkout, the same on every event in your season. One sponsorship purchase carries one Service & Processing Fee, however many spaces or events it includes.
Stripe's actual cost is added to the fee at cost, nothing more. Your organization handles its refunds and payment disputes. The fee is not refunded except as our Refund and Cancellation Policy describes.
We’ll walk through the payment setup and responsibilities with you before you decide.
See the full pricingBuilt with a longer view. Karsenics PBC allocates 20% of net profit, after founder compensation, to the Community Growth Fund. First distribution: after year five, then every third year.
More about the fundBefore we talk
For you, your team, and the board member who wants to know how it all works.
Small community nonprofits running festivals, parades, markets, fairs, trade shows, and similar events. It is built for the person managing the details, often with a small staff and a volunteer board.
There is no platform charge to your organization. Participants pay the Karsenics fee at checkout: 8% of what the participant pays for each registration, never less than $5 or more than $60, on every event in your season. A free registration carries no fee. One sponsorship purchase carries one Service & Processing Fee, however many spaces or events it includes. An entry your organization makes free, with its reason on record, carries no fee at all. Ceremonial and civic guests, public safety units, school and youth performers, a grand marshal, a courtesy comp: record why, and it costs nobody anything. Participants see one line at checkout, the Service & Processing Fee. It combines the Karsenics fee and Stripe's actual cost for the way they pay, with nothing added to Stripe's part. Directly under it they read that it covers processing their payment and running their registration, and that your organization does not keep it.
We help build your first year with you. We work through your event structure, registration needs, deadlines, and day-of plans together. Setup timing depends on your event; we will discuss that in our first conversation.
Yes. Join early access and we will walk you through the working product, using a fictional event. You can ask questions and see the parts that matter to your organization before making a decision.
Participants pay by card or from a US bank account, straight into your organization's own Stripe account, and it reaches your bank on Stripe's payout schedule. Your organization issues refunds and handles payment disputes. The Service & Processing Fee is not refunded when your organization refunds a participant, except as our Refund and Cancellation Policy describes.
Karsenics PBC allocates 20% of net profit, calculated after founder compensation, to the Community Growth Fund. Allocations are based on completed, non-refunded registrations. The first distribution is after year five, then every third year. It is a long-term commitment, not an immediate rebate.
Early access is open
What you’re planning. What’s getting complicated.
We’ll show you where Karsenics can help.