Keep the books
Double-entry books, invoices, bills, and bank reconciliation. Cash or accrual reports.
August ledger
| Client payment | +$4,800.00 |
|---|---|
| Office supplies | −$128.40 |
| Software | −$49.00 |
Reconciled
With Zazen
Your agent is your bookkeeper.
Zazen is accounting software built for AI agents.
Free to start. Bring your own AI.
How it works
Your agent knows your business. It knows accounting. Now it has a ledger.
Your agent does the work.
It categorizes transactions, matches each receipt to the card or check that paid it, reconciles your bank accounts, and runs your reports.
You stay in charge.
You decide whether your agent can only read, draft entries, or post them. Each change is logged with the reason for it, and you can review all of it in the Zazen app.
Your agent
Connected to Zazen
Connected to ZazenClose August and show me how much we made.
- Categorized 42 transactions
- Matched 18 receipts
- Reconciled Business Checking
- Ran profit & loss for August
August is reconciled. Here are the highlights from your P&L:
| Revenue | $18,400.00 |
|---|---|
| Expenses | −$11,262.40 |
| Net income | $7,137.60 |
Books, evidence, and a complete history
Built to show its work.
Keep the evidence
Supporting documents stay attached. Transactions can be automatically matched.
Transaction details
Office supplies$128.40
August 24 · Business checking
Office-supplies-receipt.pdfAttached to transaction
Matched to receipt
Keep the history
A complete audit trail records what happened and what changed.
Office supplies history
- Transaction categorizedYour agent · 10:42 AMUncategorized → Office supplies
- Receipt attachedYour agent · 10:43 AM
- Reconciled to bank statementYour agent · 10:45 AM
More features
Getting paid
- Split payments
- Card fees & net deposits
- Customer deposits & retainers
- Credit memos & write-offs
- Retainage
Hard ones, done right
- Sales tax
- Prepaids & accruals
- Loan principal & interest
- Owner draws & contributions
- Bounced checks
Bank & receipts
- CSV bank imports
- Statement reconciliation
- Card & check matching
- Duplicate receipts & bank lines
- Trust (IOLTA) accounts
Reports
- Cash & accrual reports
- Reports by job or client
- Preview drafts in reports
- Excel export
- Reconciled months stay locked
Built-in guardrails
Your agent works.
The rules still apply.
Every entry goes through rigorous automated checks before it reaches your books. If something’s wrong, Zazen tells your agent exactly what to fix.
About 30 checks before anything posts, including:
- Does it balance?
- Is that month already reconciled?
- Does a payment cover more than the bill?
- Was this invoice already entered?
You set the permissions.
Give your agent full control, or require your approval before entries post.
Every change leaves a trail.
See who changed what, when, and why, with before-and-after details. Your agent has to explain every change.
You can correct mistakes.
Reverse entries and make corrections, with supporting documents still attached.
Pricing
$10/month
Try it free for 60 days.
No card required. After that, $10 a month covers up to five sets of books.
Your AI provider’s usual charges still apply.
Open source
Self-host anytime.
Use our hosted version, or run Zazen on your own servers. The code is public, so you can see exactly how your books are kept.
Your data
Export everything, anytime.
Every journal entry, the full history, and your reports, exported to Excel. If you stop paying, your books stay readable and exportable for at least 90 days.
Get started
Getting started is a conversation.
- Copy the prompt.
- Paste it into Claude, ChatGPT, or any MCP agent.
- Sign in and approve access.Your agent sets up the rest.
Start with this prompt
Install Zazen using https://app.getzazen.com/mcp and set up my books.
Free for 60 days, then $10/month. No card required.
Step-by-step setup