An ontology primer.
What an ontology is, how Oxagen's graph works, and how agents query it over MCP, REST, or the typed SDK. Written for developers and CIOs evaluating the stack.
11+
Node Types
MCP
Native protocol
Neo4j
Canonical graph
AES-256
At rest + in transit
Why an ontology?
AI without context is just guessing
Modern workloads span 15–25 systems — email, calendar, CRM, finance, docs, code. Each captures a fragment in isolation. The ontology connects them into one typed graph your agents can traverse.
An ontology isn't a database. It's a typed, queryable graph of the things in a workspace, the properties they have, and the edges between them. Palantir built a $250B company applying ontology-first architecture to complex data problems. Oxagen brings the same architectural discipline to the agent stack.
Cross-System Reasoning
Ask questions that span every app you use. "How much of my Ottawa trip can I get reimbursed?" requires data from your calendar, bank, email, and receipt photos. The ontology connects them all.
Contextual Automation
Agents that don't just detect events — they understand them. A new receipt photo isn't just an image; it's a business expense from a client dinner during an active trip with 4 attendees.
Goal-Linked Intelligence
Connect daily decisions to long-term goals. That $14.99/month subscription you haven't used in 11 months? Canceling it moves your house down payment date two months closer.
Semantic Search Everywhere
Ask in plain language, get precise answers from any connected system. You don't need to know which app has the information. The ontology knows.
Pattern Learning
Over time, Oxagen learns which contacts are business vs. personal, which spending categories correlate with events, which goals are on track. The longer you use it, the smarter it gets.
Privacy You Can Trust
Your ontology belongs to you. AES-256 encryption at rest, TLS 1.3 in transit, multi-tenant data isolation. Your data is never used to train models or shared with third parties.
See it in action
A $284 dinner becomes a fully understood expense.
The ontology cross-references the restaurant's timestamp with your calendar, counts six attendees from the meeting invite, identifies four as clients, and calculates a $237 reimbursable share — before you even open an app.
How Oxagen Works
Connect. Ontology. Agents. Three steps to ship.
Wire in typed data sources once. The ontology builds a workspace-scoped Neo4j graph. Your agents query it over MCP, REST, or the typed SDK.
Connect
Link Your Accounts. Oxagen Does the Rest.
Connect your email, calendar, notes, tasks, meetings, bank accounts, and photos. Secure OAuth and Plaid mean we never see your credentials. One-time setup, continuous intelligence.
Learn moreOntology
A Living Knowledge Graph of Everything.
Oxagen maps the entities and relationships across your connected accounts — people, transactions, trips, receipts, meetings, goals — into a structured knowledge graph that grows smarter every day.
Learn moreAgents
Always On. Always Contextual.
Agents monitor your ontology around the clock — inboxes, calendars, bank accounts. When something meaningful happens, they trigger the right workflow, surface urgent insights, or reach out to the right person. All grounded in real context.
Learn moreTerminology
The key concepts behind Oxagen
Tap any term to learn more. These are the building blocks of the Oxagen ontology surface.
Beta Roadmap
What to expect in the beta
We're building Oxagen in the open. Here's what early adopters get access to and what's on the roadmap.
Available at launch
Core platform features
- Connect Gmail, Google Calendar, and Plaid (12,000+ banks)
- Automatic ontology construction from connected data
- AI agent chat with natural language queries across your data
- Daily briefings with calendar, spending, and goal synthesis
- Receipt scanning via photo upload with OCR
- Basic budget tracking and subscription detection
- Shareable artifacts: expense dashboards and debt trackers
- 200 free credits per month on the Free tier
On the roadmap
Planned for upcoming releases
- Outlook Mail and Calendar connectors
- Google Drive and OneDrive file connectors
- MCP protocol integrations (Slack, Notion, GitHub, Zoom)
- Custom workflow and agent builder
- Trip intelligence with auto-generated expense reports
- Credit score monitoring and improvement plans
- Team and Enterprise plans with org-wide ontology
- SMS and WhatsApp messaging connector via Twilio
For Developers
Build on the ontology
Jump directly into the API docs. Every card links straight to the developer reference.
Your ontology is the brain. See how it acts.
Connect your accounts. Build your ontology. Let AI understand your entire life — not one app at a time.
No credit card required. Cancel anytime.