Chat with AI that can actually take action.
Sentinel is a mobile-first assistant that executes real-world tasks. Our deterministic core handles logic, APIs, and flow control; AI website navigation is used only when native APIs are unavailable. Critical action gates keep you in control for high-stakes steps.
Real-world requests
Ask once. Sentinel executes end to end.
From address updates and marketplace listings to bookings with SMS verification, Sentinel completes the workflow while you approve critical actions.
Built for reliable action, not just chat.
Most AI agents fail because logic lives in the model. Sentinel separates execution from language to keep outcomes consistent.
01
Deterministic execution core
Our node-based engine controls logic, APIs, retries, and flow state for reliable outcomes.
02
Mobile-first context triggers
Location, photos, and device context can start real tasks without manual setup.
03
Critical action gates
High-impact actions like payments or cancellations always require explicit approval.
How it works
A reliable path from intent to execution.
Sentinel plans the task, confirms key checkpoints, and executes through deterministic flows with API-first actions and web fallback when required.
01
Capture the intent
Describe the outcome in chat or voice. Sentinel adds context from your mobile environment when relevant.
02
Build a deterministic plan
The engine maps each step, integration, and fallback path before execution starts.
03
Confirm critical actions
High-stakes actions pause for approval so execution stays safe and controlled.
04
Execute and verify
Sentinel completes the workflow, gathers confirmations, and returns structured proof of completion.
Integration layer
Sentinel works with every tool in your stack
API-first integrations handle most actions. When APIs are missing, Sentinel can navigate websites inside bounded, observable workflows.
Use cases
Real tasks Sentinel can execute.
These are examples of tasks Sentinel can complete from a single request on mobile.
Life admin
Address update across services
"I moved. Update my address on Amazon, my bank, and the government electricity portal."
Outputs: account updates, confirmation records, follow-up reminders.
Marketplace listings
List inventory across marketplaces
"I took 3 photos of these Nikes. List them on Vinted and eBay for EUR 50."
Outputs: listing links, price settings, publishing status.
Reservations
Book with verification handling
"Book a table for 2 at a sushi place near my office for 8 PM." Sentinel checks availability, handles SMS verification, and adds it to your calendar.
Outputs: reservation confirmation, calendar event, reminder.
Account ops
Handle high-friction account tasks
Submit cancellations, profile changes, and other portal workflows with approval checkpoints.
Outputs: submitted requests, receipts, and status updates.
Daily execution
Run repeatable workflows
Reuse prior successful flows for similar requests while keeping critical actions gated.
Outputs: faster completion, fewer manual steps, consistent outcomes.
Safety and trust
You stay in control of every critical action.
Sentinel is designed for high-stakes workflows with deterministic execution and explicit approval gates.
Critical action gates
Payments, cancellations, and identity changes require explicit approval before execution.
One-time secure sessions
Sentinel uses one-time session handling so raw credentials are not retained as reusable secrets.
Deterministic audit trail
Every action returns structured confirmations so completed work is traceable and reviewable.
Bounded web fallback
When APIs are unavailable, website navigation runs inside constrained workflows rather than open-ended autonomy.
FAQ
Answers to common questions.
Questions about reliability, integrations, and product availability.
What makes Sentinel different from other AI agents?
Sentinel separates language understanding from execution. A deterministic core controls logic and actions, while AI navigation is used only as fallback.
What happens when a service has no API?
Sentinel can navigate the website in a bounded flow, then returns confirmations and asks for approval on critical steps.
Do you store passwords?
Sentinel is built around one-time secure sessions designed to avoid persistent credential storage.
Is Sentinel live today?
Sentinel has a functional Android MVP in private beta and is iterating toward broader public launch.
Ready to delegate real tasks?
Join the Sentinel waitlist.
Get early access to a mobile AI assistant built for reliable real-world execution.