The Graph Database That Understands Your Ontology
Define your data model as an OWL ontology. OWLGraph handles reasoning, inference, and subsumption queries — so your application doesn't have to.
@prefix : <http://fiveloaves.ai/ontology#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
:Scripture a owl:Class .
:Prophecy a owl:Class ;
rdfs:subClassOf :Scripture .
:Fulfillment a owl:Class ;
rdfs:subClassOf :Scripture .
:fulfills a owl:ObjectProperty ;
rdfs:domain :Fulfillment ;
rdfs:range :Prophecy .
# Insert data → OWLGraph materializes the inferences
# Query :Scripture → returns all Prophecies AND FulfillmentsIntelligence Lives in the Database
Stop writing inference logic in your application layer. OWLGraph moves semantic reasoning where it belongs.
Ontology-as-Schema
Define your data model in standard OWL2 RL Turtle format. No proprietary schema language — use the same ontologies you already have.
Write-Time Materialization
Inferred triples are computed when data is written, not at query time. Reads are fast because the reasoning is already done.
Subsumption Queries
Query a parent class and automatically get all subclass instances. No manual UNION queries or application-level logic.
Auto-Generated GraphQL
Your ontology becomes a fully typed GraphQL API instantly. Classes become types, properties become fields.
Transitive Reasoning
Property chains and transitive relationships are resolved natively in the database. Genealogies, containment, and dependency graphs just work.
Ontology Introspection
Query your ontology structure at runtime. List classes, properties, hierarchies, and inference rules through a dedicated API.
Built for Semantic Applications
Any domain that benefits from formal ontologies benefits from OWLGraph.
Theology & Religious Studies
Model Scripture as a knowledge graph with typological chains, prophecy fulfillments, and cross-references across interpretive traditions.
Healthcare & Life Sciences
Cross-ontology queries across SNOMED, LOINC, and custom clinical ontologies for personalized medicine and drug interaction analysis.
Knowledge Management
Build enterprise knowledge graphs where organizational taxonomy drives automatic classification, search, and discovery.
Simple, Transparent Pricing
Start free. Scale as you grow. No hidden fees.
Developer
For proof-of-concept and learning
- 1 database instance
- 500 MB storage
- 100K queries/month
- Full OWL2 RL reasoning
- Community support
Starter
For side projects and MVPs
- 3 database instances
- 5 GB storage each
- 1M queries/month
- Daily backups
- Email support
Professional
For production applications
- 10 database instances
- 25 GB storage each
- 10M queries/month
- Read replicas
- Priority support
Need more? See full pricing & Enterprise plans
Ready to Build Semantic Applications?
Get started with OWLGraph for free. Load your first ontology in under 5 minutes.