Microsoft AI Agent: Run Your Microsoft 365 Stack From One Chat
Cassie reads and replies to your Outlook inbox
Vizzy works across OneDrive, Word, and Excel files
Daily Summarizer pulls Outlook and calendar in one brief
Trusted by over 50,000+ business owners and founders
How Sintra works across Microsoft 365
Cassie owns Outlook email. Vizzy owns the rest of the Microsoft stack. Together they read, draft, and run your day inside the apps you already pay for.
Authorize Microsoft 365
Open Sintra and pick the helper that owns the app you want first. Sign in with your Microsoft account. Most Microsoft 365 features need a work or school account with the right admin permissions.
Pick the helper per app
Cassie for Outlook mail. Vizzy for OneDrive files, Word, and Excel queries. Each helper has its own integration panel in Sintra. Connect the ones that match your workflow.
Talk to your helpers, not to apps
Ask Cassie for yesterday's emails from a specific client. Ask Vizzy to find the budget spreadsheet from last month. Each helper works against the Microsoft account you authorized and writes back what she found in chat.
Who benefits from using Microsoft AI Agent
Small businesses running on Microsoft 365 who want AI help that respects the stack they already chose.
Sintra vs other Microsoft 365 AI tools
Microsoft 365 AI tools are useful inside apps like Word, Excel, Outlook, and Teams. Sintra is more flexible for small business workflows that need support across multiple platforms, not just one software ecosystem.
Data-Backed Results From Real Users
+37%
Revenue growth in the first 90 days
5x
Faster content production across all channels
20h
Saved weekly on admin, support, and content work
80%
Of repetitive tasks fully automated
Set up Microsoft 365 with Sintra
Pick the helper for the app you want first
For email, open Cassie. For OneDrive, Word, or Excel queries, open Vizzy. The integrations panel inside each helper holds the Microsoft connection.
Sign in with your Microsoft account
Use a work or school account when possible, since personal Microsoft accounts have narrower API support. Approve the scopes the helper requests for the apps you want covered.
Confirm admin permissions if needed
Some Microsoft 365 organizations require an admin to allow the Sintra app. If you see a consent block on sign-in, send the admin a heads-up. See Sintra's help center for the current admin guide.
Test each connected app
Ask Cassie to summarize today's Outlook inbox. Ask Vizzy to find a specific OneDrive file. If both come back clean, the stack is wired up.
Used by more than
50,000+ founders.
I can’t recommend SintraAI enough. It’s like having a personal business coach 24/7, mapping out steps to grow my company and clarifying my priorities. I feel a renewed sense of focus and control every day.
December 29, 2024 • Socrate Concepcion • US
Each AI bot tackles my to-do list, from scheduling tasks to crawling my website for SEO tips. I love how it set up calendar reminders for all my commitments. Sintra.ai is well worth every penny, especially for a busy single-person business.
December 14, 2024 • Jennifer Glenn • US
As an entrepreneur launching a new venture, Sintra.ai has made a real difference. The AI assistants are like personal staff I can rely on. And whenever I needed support, the team was on point. A must-try for any budding business!
December 21, 2024 • Custódio Barreiros • HU
I once had a large team, and although I loved my helpers, they needed constant motivation. With Sintra, there’s no drama, just new ideas that I can simply accept or reject. It’s a huge relief—100% recommended.
December 26, 2024 • Holly Wehde • US
Hiring Sintra was a great decision for my struggling boutique. They handle social media posts, guide my ads, and even offered a solution for double social media pages. Now I can focus on my inventory and customers.
December 17, 2024 • Michele Davis • US
Signed up for Sintra X—it felt overwhelming at first, but once it understood how I think, it turned into a creative powerhouse. Support is top-notch, and the daily integrations impress me.
Dec 10, 2024 • Sami Liftoff • US
I’m not usually one to give top marks, but once I got comfortable with Sintra’s 12 helpers, I was blown away by their efficiency. They churn out so many analytical ideas I have to pause and digest them. It’s sometimes overwhelming, but in a good way.
December 29, 2024 • lars • DK
Sintra integrates with all my favorite tools and these little helpers automate my tasks in a huge way. They actually learn my company’s style day by day. It’s a massive step up from generic AI chats.
December 30, 2024 • Michelangelo • IT
My life is simpler with Sintra. It handles content creation, next steps, brainstorming, and copy. I highly recommend it if you want to free up mental space for what truly matters in your business.
December 28, 2024 • Lionel D'Alvia • US
My “team” in Sintra knocks out tasks like magic, offering fresh ideas for efficiency and better customer outreach. It’s a relief knowing I have AI assistants ready to go around the clock.
December 31, 2024 • Kat Angelica • US
I’ve only been using Sintra for a couple of weeks, but the experience has been great—especially with the social media bot reaching out to me with new ideas. The pull model feels super proactive and makes me more confident in my daily tasks.
December 30, 2024 • Bayan Qandil • US
I challenge anyone to compare other platforms to Sintra.ai and their staff—you won’t find a better customer experience. Everyone is professional, responsive, and genuinely cares about helping. Truly top-notch!
December 28, 2024 • Timothy Montjoy • US
This platform helps me like a full-time employee would. As a startup, I can’t afford extra staff, so Sintra stepped in to handle complex tasks and free me up for big-picture thinking.
December 28, 2024 • Jules Kincaid • US
I’m juggling multiple hats in my business, and these 12 AI “helpers” lighten the load. They even crack jokes and celebrate milestones with me! I saved thousands in consultant fees by letting Sintra handle SEO and content tasks.
December 30, 2024 • Michelle Smith • US
This platform helps me like a full-time employee would. As a startup, I can’t afford extra staff, so Sintra stepped in to handle complex tasks and free me up for big-picture thinking.
December 24, 2024 • Domanic R.H • US
More apps Sintra connects to
Bring Microsoft 365 to Sintra
Get Sintra X today. Cassie and Vizzy plug into Microsoft 365 so your existing stack starts answering you in chat. 14-day money-back guarantee.
Frequenly asked questions
It plugs Cassie into Outlook and Vizzy into OneDrive, Word, and Excel files. You ask in chat and the helpers work against the Microsoft account you connected.
Work or school accounts have the widest support, since personal Microsoft accounts have narrower API access. Sign in with the account type that matches your actual work setup.
Each connected app asks for the Microsoft Graph scopes the helper needs (mail send, file read, calendar read). Approve them on the Microsoft sign-in screen. Work and school accounts may need admin consent.
Yes. Cassie can hold both Gmail and Outlook on different connections. Vizzy can hold Drive and OneDrive at the same time. Tell her which stack to use per request.
Confirm the relevant Microsoft connection is still active in the helper's settings. If the sign-in expired, reauthorize. For tenant-level access blocks, an admin may need to re-allow Sintra. See Sintra's help center if it persists.
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