Ontology
Defines how the business world should be understood and reasoned about by organizing objects, relationships, actions, metrics and rules into a shared semantic model.
OpenBKN Open Source Ontology Platform
Powerful, affordable ontology modeling for every business
OpenBKN is an open-source ontology platform for enterprises and AI agents. It models business objects, relationships, actions, metrics and rules to create queryable, actionable and traceable business knowledge networks.
Combine the creativity of large language models with the certainty of ontologies for accurate, secure and reliable enterprise AI.
AI agent platforms
OpenBKN
Platform
Business knowledge for agents
Data / systems
Connect agents and business knowledge
Why do enterprise AI agents need a Business Knowledge Network?
A Business Knowledge Network (BKN) uses ontology modeling to organize business semantics, data facts, decision logic, action boundaries and operational evidence. It helps enterprise AI agents understand business context, act safely within clear boundaries, and keep every decision and action traceable and verifiable.
Business Knowledge Network / BKN
Represents how the business world operates by connecting ontology models with enterprise data to form a queryable, actionable, governed and traceable business knowledge foundation.
OpenBKN
Builds, runs and governs BKNs with platform capabilities for ontology modeling, data connections, permissions, actions, tool calls, auditing and tracing.
Ontology modeling, Knowledge Network operations, business provenance—all in one platform
Put business knowledge to work
Connect business objects and relationships to query and use enterprise knowledge. Run BKN independently or through agents in real business scenarios.
Learn how to run BKNSwitch product feature
Choose the right plan for OpenBKN
View pricing and feature comparisonCommunity Community edition
For developers, technical teams and ecosystem partners
Build and validate business knowledge networks for free. Ideal for demos and proofs of concept.
- Model and manage knowledge networks from BKN Studio, CLI, SDK and Skills
- Try it in one click with dynamically loaded official examples
- Model objects, relations, actions and metrics
- Relation queries, path queries and semantic search
- Connect to MySQL, PostgreSQL, MariaDB and OpenSearch as data sources
- Execution Factory connects OpenAPI, MCP, SKILL and functions
- Local user and role management with top-level resource grants
- Activity audit, runtime diagnostics and semantic understanding
Professional Professional edition
Built for AI-native teamsFor fast-growing AI-native teams
Adds custom roles and permissions, fine-grained object authorization and advanced data connectivity on top of Community.
- Everything in Community
- Custom roles and permissions
- Fine-grained object authorization: operation permissions, explicit exceptions and full audit
- Advanced data connectivity: SQL Server and Oracle
- Logical views: derived and composite views
- Graph explorer: semantic search, path finding, canvas export and sharing
- Object Metrics: management, versioning, lineage and result queries
$1,490/month
$14,900/year
Enterprise Standard Enterprise Standard edition
For organizations running their enterprise AI agents on OpenBKN
Adds SAP HANA connectivity, fine-grained enterprise object permissions and business provenance on top of Professional.
- Everything in Professional
- Advanced data connectivity: SAP HANA
- Enterprise object rules: row and column filtering
- Property hiding, name-only display and column masking
- Audit of row and column permission changes
- Business provenance: timeline and evidence chain
Ready to build your ontology platform?
Connect your business data and build a knowledge network with OpenBKN,
giving every AI agent reliable, traceable business knowledge.
git clone https://github.com/openbkn-ai/openbkn-deploy.git && \
cd openbkn-deploy/deploy && \
sudo ./deploy.sh openbkn install