# Just Invoice AI agent for Slack & Microsoft Teams

Viktor is an AI employee that connects to Just Invoice with a scoped API key and helps you create invoices and manage recurring subscription billing the way a teammate would. Ask in plain English in Slack or Microsoft Teams; Viktor does the work in Just Invoice and reports back. Setup takes about two minutes.

- Tool: Just Invoice
- Category: Finance & Payments
- Connection: API key
- Works from: Slack and Microsoft Teams
- Page: https://viktor.com/integrations/just-invoice

## What can you ask Viktor to do in Just Invoice?

- "Send this month's invoices in Just Invoice to the customers on this list."
- "Find the customers in Just Invoice with a failed subscription payment and draft outreach."
- "Watch Just Invoice for a canceled subscription and alert me with the reason if given."
- "Pull this month's recurring revenue from Just Invoice and post it every month."

## What can Viktor do in Just Invoice?

Viktor works with Just Invoice through a managed connector to help you create invoices and manage recurring subscription billing: describe the task in plain English and Viktor figures out the right Just Invoice calls, runs the work, and reports back.

## How does Viktor work with Just Invoice?

1. Add Viktor to Slack or Microsoft Teams.
2. Connect Just Invoice with an API key - Viktor handles authentication.
3. Ask in plain English. Viktor runs the Just Invoice actions, chains them with your other tools when needed, and reports back. Sensitive actions wait for your approval.

## What is a Just Invoice AI agent?

A Just Invoice AI agent is an AI that connects to your Just Invoice account and completes work in it - it doesn't just answer questions about Just Invoice, it takes the actions. Viktor is that agent: an AI employee that works in Just Invoice on your behalf and delivers the finished result in Slack or Microsoft Teams.

Unlike workflow builders such as Zapier or Make, there is nothing to configure - no triggers to map, no workflows to maintain. You describe the outcome in plain English, and Viktor picks the right Just Invoice actions, chains them with the other 3,200+ tools it connects to, and asks for approval before anything sensitive runs.

### About Just Invoice

Invoice Management Software

## Security and permissions

- Scoped API keys - Viktor stores your key securely, uses only the scopes you grant, and you can revoke it at any time.
- Review-first approvals: sensitive Just Invoice actions wait for your sign-off before they run.
- Isolated compute per team, encrypted in transit and at rest - and your data is never used to train models.
- SOC 2 Type 1 compliant, with Type 2 and ISO 27001 in progress.

## FAQ

### Does Viktor integrate with Just Invoice?

Yes. Just Invoice is one of the 3,200+ tools Viktor connects to, via a managed connector. Once connected, anyone on your team can put Viktor to work in Just Invoice from Slack or Microsoft Teams - no workflow builder, no code.

### How do I connect Just Invoice to Viktor?

Ask Viktor in Slack or Microsoft Teams to connect Just Invoice, then paste an API key from your Just Invoice account when prompted. Viktor stores the key securely, uses only the scopes you grant, and you can revoke it at any time. Setup takes about two minutes.

### What can Viktor do in Just Invoice?

Viktor works with Just Invoice through a managed connector to help you create invoices and manage recurring subscription billing: describe the task in plain English and Viktor figures out the right Just Invoice calls, runs the work, and reports back with the result in Slack or Microsoft Teams.

### Do I need to build workflows to automate Just Invoice?

No. Viktor isn't a workflow builder - there are no triggers to map and no workflows to maintain. You ask for the outcome in plain English in Slack or Microsoft Teams, and Viktor decides which Just Invoice actions to take, runs them, and reports back.

### Is my Just Invoice data secure with Viktor?

Yes. Viktor connects to Just Invoice with a scoped API key, runs in an isolated environment per team, and never trains models on your data. Sensitive actions wait for your approval, and you can revoke access at any time. Viktor is SOC 2 Type 1 compliant, with Type 2 and ISO 27001 in progress.

### How much does the Just Invoice integration cost?

Nothing extra - every integration, including Just Invoice, is available on every plan. You can start free with up to $100 in credits, no credit card required; paid plans start at $50/month.

### Can Viktor use Just Invoice together with my other tools?

Yes - that's the point. Viktor connects to 3,200+ tools and works across them in a single run: it can pull data from Just Invoice, cross-reference it with another tool - for example Slack or Gmail, and deliver the finished result in Slack or Microsoft Teams.

## Viktor uses Just Invoice together with

- [Slack](https://viktor.com/integrations/slack)
- [Gmail](https://viktor.com/integrations/gmail)
- [Google Sheets](https://viktor.com/integrations/google-sheets)
- [HubSpot](https://viktor.com/integrations/hubspot)
- [Notion](https://viktor.com/integrations/notion)
- [Salesforce](https://viktor.com/integrations/salesforce)

## More Finance & Payments integrations

- [Customer.io](https://viktor.com/integrations/customer-io-2)
- [QuickBooks Sandbox](https://viktor.com/integrations/quickbooks-sandbox)
- [Bitget](https://viktor.com/integrations/bitget)
- [Xero](https://viktor.com/integrations/xero)
- [Xero Accounting](https://viktor.com/integrations/xero-accounting)
- [Stripe](https://viktor.com/integrations/stripe)
- [Baremetrics](https://viktor.com/integrations/baremetrics)
- [QuickBooks](https://viktor.com/integrations/quickbooks)

## Get started

Viktor is free to start - up to $100 in credits, no credit card required. All 3,200+ integrations are included on every plan. Sign up at https://viktor.com or browse all integrations at https://viktor.com/integrations.
