Comes with your company in it. Bends to any tool you have.
Castan is an AI that builds and runs a small company with its owner. It joins your calls and sends the recap, remembers every promise, chases the invoices, connects to any tool you have, and asks before it acts. Everything it makes is yours: the pages, the code, the customers, the data.
Plant once. Grow forever. Flat pricing per company, read-only connections, your data stays yours.
Remembers every promise
Gmail, Slack, meetings, invoices and GitHub, joined in a single memory. Ask "who owes us money and what did we promise them?" and get the answer with citations.
A counselor, not a chatbot
A staged journey from idea to revenue. It researches your market, scores your odds, and remembers every settled decision so you never argue the same thing twice.
Attends every call
The Castan bot joins Zoom, Meet or Teams. Transcripts land in Castan and every participant gets a recap link worth forwarding.
Chases every invoice, keeps the books
P&L, COGS, burn and runway computed straight from your ledger. Import a bank statement and it categorizes itself. Investor numbers, always current.
Bends to any tool you have
It starts full, with the company already in it. Then it takes the shape you need.
Connect anything
If it has an MCP server, Castan connects to it: one click for Linear, Notion, GitHub, Stripe, Jira, Sentry and more, or paste any address. Its tools become sources Castan reads and actions it proposes, with your approval.
Describe a routine
"Every Monday, the invoices over thirty days with the last thing each customer said." It becomes an agent that asks before it sends.
Ask for a page
A customer dashboard, a board for the weekly review. Studio builds it into your repository, as a pull request you merge.
Up and running in an afternoon
Define the business together. Every decision you settle is remembered and never re-asked.
OAuth in, read-only. Slack, email, GitHub and your books flow into a tenant-isolated graph.
Ask anything. Approve agent runs. Send the bot to a meeting. Watch the books keep themselves.
Flat per company. Never per seat.
Castan needs everyone's data to work, so nobody pays by the head. Asking what your company knows is never metered.
- Memory: every connected source, answers with citations
- Counselor, journey and success-odds assessments
- Meeting assistant: joins calls, recaps, in-chat answers
- Financials: P&L, burn, runway, bank-statement import
- Agents: invoice chasing, weekly review, approvals inbox
- Build agent: code changes as pull requests, plus hosting
- Lists, customer 360, team invites
- No meter on asking what your company knows
Plans differ by company size and fair-use allowances, never by features.
- Up to 3 people
- 5 meeting hours / month
- 5,000 items indexed per source
- 8 market assessments / month
- 3 connected sources
- 5 Studio agent runs / month
- Up to 10 employees
- 10 meeting hours / month
- 20,000 items indexed per source
- 15 market assessments / month
- 4 connected sources
- 10 Studio agent runs / month
The first 20 customers pay $199/mo for life, applied automatically at checkout. Twenty in total, then the price is gone for good.
- Up to 25 employees
- 40 meeting hours / month
- 50,000 items indexed per source
- 30 market assessments / month
- 6 connected sources
- 25 Studio agent runs / month
- Up to 60 employees
- 100 meeting hours / month
- 100,000 items indexed per source
- 60 market assessments / month
- 8 connected sources
- 60 Studio agent runs / month
More than 60 people, or particular requirements? Write us: hello@castan.ai · Romanian company? Prices in lei