Reliable mobile AI for real-world action.
Sentinel is a chat-first assistant that executes real-world tasks. A deterministic core handles logic and flow control, while AI agents navigate websites only when APIs are unavailable. Critical action gates keep you in control.
Real-world requests
Ask once. Sentinel handles the action.
From address changes and listings to reservations and bookings, Sentinel takes care of the work while you stay in control.
With Sentinel, no more "I can't do that"
Deterministic flows and AI navigation unlock tasks other assistants cannot reliably complete.
01
Connect your calendar
We handle scheduling conflicts, time zones, and reminders so you never double book.
02
One-time secure logins
Sentinel uses ephemeral sessions and never stores your passwords.
03
Critical action gates
Payments, cancellations, and legal submissions always require your approval.
How it works
A reliable path from intent to execution.
Sentinel plans the task, confirms key steps, and executes with a deterministic engine so outcomes are consistent and explainable.
01
Capture the intent
Explain what you want in chat or via voice. Context from location, photos, and calendar is added automatically.
02
Build a deterministic plan
Our node-based engine maps the steps, APIs, and fallbacks before any action is taken.
03
Confirm critical actions
You approve high-impact steps like payments, cancellations, and identity changes.
04
Execute and verify
Sentinel completes the task, collects confirmations, and stores receipts in your workspace.
Hybrid architecture
Deterministic core + AI navigation.
Reliability comes from deterministic logic, not just language models. AI is used only when a website is the only path.
Deterministic core
Handles orchestration, retries, and structured API logic.
AI navigation layer
Vision and LLMs only operate inside bounded, observable workflows.
Audit trail
Every step is logged with receipts and confirmations.
Use cases
Real tasks Sentinel can execute.
From personal admin to ecommerce listings, Sentinel navigates the full flow end to end.
Life admin
Move without the paperwork
Update your address on Amazon, your bank, and your utility portal in one request.
Outputs: confirmation emails, updated profiles, calendar reminders.
Marketplace listings
List products everywhere
Upload photos, set pricing, and post on Vinted and eBay simultaneously.
Outputs: listing URLs, pricing summary, inventory status.
Reservations
Book a table in minutes
Sentinel checks availability, completes SMS verification, and adds the booking to your calendar.
Outputs: booking confirmation, calendar event, reminder.
Travel
Plan and book travel
Find flights, compare options, and hold seats until you approve payment.
Outputs: itinerary options, approval request, ticket receipt.
Commerce
Manage orders and returns
Request a return, print labels, and schedule carrier pickup.
Outputs: return label, pickup confirmation, refund status.
Operations
Handle recurring workflows
Coordinate vendor invoices, upload receipts, and update your bookkeeping tool.
Outputs: reconciled transactions, archived receipts.
Mobile-first context
The assistant that knows where you are and what you see.
Sentinel is built for mobile so it can use real-world signals to kick off tasks instantly.
Photo triggers
Capture a receipt or item photo and turn it into an action instantly.
Location triggers
Nearby availability, local services, and trusted vendors are always in reach.
Secure SMS handling
Sentinel reads verification codes and completes steps without leaving the flow.
Safety and trust
You stay in control of every critical action.
Sentinel is designed for high-stakes workflows with guardrails built in from the start.
Critical action gates
Payments, cancellations, and identity changes require explicit approval before execution.
One-time secure sessions
We use ephemeral sessions and never store raw credentials or sensitive data.
Deterministic audit trail
Every action is recorded with receipts, confirmations, and structured logs.
Fallback and recovery
If a step fails, Sentinel pauses and proposes next actions instead of guessing.
FAQ
Answers to common questions.
Need more? Reach out and we can share a private demo.
What makes Sentinel different from other AI agents?
Sentinel uses a deterministic core for logic and flow control, and relies on AI navigation only when APIs are unavailable. That keeps outcomes consistent and auditable.
How do approvals work?
Critical actions like payments, cancellations, or identity changes require explicit confirmation before Sentinel executes them.
Do you store passwords?
No. Sentinel uses one-time secure logins and ephemeral sessions to complete tasks without storing credentials.
What platforms are supported?
We are mobile-first and prioritize iOS and Android. Web access is used to complete tasks when APIs are not available.
Ready to delegate the work?
Join the Sentinel waitlist.
We are onboarding early customers who need reliable task execution.