Otis
ChatGPT pluginClient billing in your chat
Otis keeps the billing records of a consultant or small agency: clients, billable hours and timers, expenses, invoices and payments. Your assistant is the interface. Tell it what you worked on, what you spent or who paid, and Otis stores it as structured records.
When you are ready to bill, the assistant drafts the invoice from unbilled work. Otis numbers it, calculates totals and tax, and checks it against the business's tax profile before it can be issued. An invoice is issued only after you approve its exact total, and an issued invoice is never rewritten. Payments are recorded against invoices, so the assistant can tell you what is unpaid and what is ready to invoice.
Otis records billing facts. It does not send invoices, move money or connect to bank accounts. It runs no AI model of its own: every answer comes from your records and the rules on the server. Sign in with your email; records can be exported in full at any time.
Otis is #10,463 of 13,927 ChatGPT plugins by placement, up 112 places in a week.
- Featured
- No
not on the featured shelf
Movement
From our daily snapshots over the last 30 days.
Rank by placement
Rank in Finance
In its category
How this plugin compares with others in the same category. Positions are counted within the category, not across the whole directory.
Finance875th of 1,131 by placement
| # | Plugin | Position | 7d |
|---|---|---|---|
| 873 | #10441 | 122places up | |
| 874 | #10446 | 20places down | |
| 875 | #10463 | 112places up | |
| 876 | #10481 | 153places up | |
| 877 | #10515 | 88places up |
Also on other marketplaces
Example prompts
- “Which invoices are still unpaid, and how much is due on each?”
- “What can I invoice Fernhill Coffee for?”
- “Record 2 hours of permit review for Harbor & Pine at $130 an hour.”
Skills
add-expense
Record or correct an Otis expense, optionally billable to a client.
business-settings
Review or set up Otis business identity, currency and invoice preferences; only owners can save changes.
clients
Find Otis clients and maintain confirmed billing and tax details.
create-invoice
Prepare an Otis invoice from available work, review tax and discounts, and issue only after exact-draft approval.
export
Export Otis records or audit history as paginated JSON using current read permissions.
invoices
Review Otis drafts, issued invoices and recorded balances, or cancel a specifically requested draft.
menu
Show the Otis menu and route a user to an independent business workflow when they ask for /otis or need help choosing a task.
payments
Review or record reported partial/full payments for issued Otis invoices.
record-work
Record or correct Otis billable time, services or reported AI usage, or start and stop a timer that tracks work time.
tax-settings
Review Otis tax guidance and confirmed registrations; only owners can save a tax profile.
- Categories
- Made by
- Boon IT SRL · Website
- Sign-in
- On Install
- Capabilities
- Record billable hours, fixed fees and AI usage per client, Time work with a timer and record it at an hourly rate, Record expenses and bill them back to clients, Draft, check and issue invoices after you approve the exact total, Record payments and see what is unpaid or ready to invoice, Export all business records
- Availability
- Available
- Version
- 0.3.2
- Created
- October 24, 2026
- More info
- Sponsorship
- Promote this plugin