Otis
Claude connectorCommunityFree client billing for consultants and small agencies: hours, timers, expenses, invoices and payments, kept as records your assistant can…
Otis keeps the billing records of a consultant or small agency: clients, billable hours and timers, expenses, invoices and payments. Claude is the interface. Tell it what you worked on, what you spent or who paid, and Otis stores it as structured records.
When you're ready to bill, Claude 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 Claude 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.
Free. Sign in with your email; no API key. Records are stored in the European Union and can be exported in full at any time.
- Tools
- 25
exposed by this connector
Movement
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Popularity score
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Trending score
In its categories
How this connector compares with others in the same category. Positions are counted within the category, not across the whole directory.
Productivity4,453rd of 4,952 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 4451 |  Organic Search by PaidSync.ai | 1,585 | — | 999places down |
| 4452 | 1,585 | — | 999places down | |
| 4453 | OtisThis page | 1,585 | — | — |
| 4454 | 1,585 | — | 602places down | |
| 4455 | 1,585 | — | 999places down |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 |  Intuit QuickBooks Labs | 57,784,459 | 13,209 #289 | — |
| 2 |  Adspirer Social Ads | 30,557,087 | 14,248 #216 | — |
| 3 | 15,667,540 | 15,307 #141 | 1places down | |
| 4 |  Hevy | 1,955,298 | 8,690 #1014 | — |
| 5 | 1,658,113 | 8,969 #954 | 5places up |
Financial services1,121st of 1,227 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 1119 | 1,585 | — | — | |
| 1120 | 1,585 | — | 999places down | |
| 1121 | OtisThis page | 1,585 | — | — |
| 1122 | 1,585 | — | 999places down | |
| 1123 | 1,585 | — | — |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 | Intuit QuickBooks Labs | 57,784,459 | 13,209 #93 | — |
| 2 | 1,658,113 | 8,969 #276 | 5places up | |
| 3 | 874,651 | 8,366 #317 | — | |
| 4 |  Schwab Advisor Services | 355,610 | 8,916 #278 | — |
| 5 | 283,621 | 6,870 #440 | 0 |
Tools
- billable_record
- billables_list
- business_get
- business_set
- businesses_list
- client_save
- clients_list
- expense_record
- expenses_list
- feedback_send
- invoice_cancel_draft
- invoice_check
- invoice_draft
- invoice_get
- invoice_issue
- invoices_list
- otis_menu
- payment_record
Show all 25Show fewer
- payments_list
- records_export
- tax_guide
- tax_profile_set
- timer_start
- timer_stop
- timers_list
- Categories
- Sign-in
- Required
- Connector URL
- https://mcp.otisbase.com/mcp
- Transport
- Streamable HTTP
- Works with
- Claude, Claude API, Claude Code, Claude Desktop
- Added
- October 24, 2026
- More info
- Sponsorship
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