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Try agent

Pick the chat app you want to start with.

Choose a chat app and pair it with your InvoiceOS account once you have an invitation. Billie turns your notes into invoice drafts. Nothing is saved until you approve it.

  • Slack

    Test channel

    Join the private #invoice-os channel in the InvoiceOS workspace. Pairing opens when the Slack app setup is finished.

    Open #invoice-os

  • Telegram

    In setup

    A private chat with the InvoiceOS bot. You pair it in a direct message, never in a group.

  • Discord

    In setup

    Slash commands in a private chat with the InvoiceOS app. Opens after the Discord app is approved.

  • iMessage

    Not available yet

    Business iMessage needs an approved Apple messaging provider. A personal iMessage bot is not offered.

  • WhatsApp

    Pending approval

    Needs Meta business approval, your opt-in, and an approved template for replies sent after 24 hours.

How pairing works

Three steps, one private link.

  1. Get an invitation.

    InvoiceOS is invitation-only in this preview.

  2. Create a pairing code.

    Generate it in your InvoiceOS profile.

  3. Send the code privately.

    Post it in a direct message with the bot. The chat then links only to your account.

Clear limits

What Billie does, and what it won’t.

Billie will

  • Draft an invoice from your note
  • Show the draft as a PDF for you to review
  • Ask about details it cannot find

Billie won’t

  • Send anything to a customer
  • Take payments
  • Calculate tax or file a return