Installation

OWLGraph Cloud (Recommended)

The fastest way to start is with OWLGraph Cloud — our fully managed Database-as-a-Service.

Sign up for a free Developer account
Create a database from the dashboard
Load your ontology via the HTTP API
Start querying

No infrastructure to manage. Free tier includes 500 MB storage and 100K queries/month.

Self-Hosted

Prerequisites

Go 1.26.1+ (for building from source)
GCC (for cgo / jemalloc)
Docker (for the dev cluster)
jemalloc (auto-built by the Makefile)

Build from Source

git clone https://github.com/owlgraph/owlgraph.git
cd owlgraph

# Full build: compile binary + run all OWL tests
./scripts/build.sh

# Build the binary only
./scripts/build.sh build

# Compile check + tests (fast CI gate, no binary)
./scripts/build.sh verify

Start a Dev Cluster

# Build Docker image from local binary
make local-image

# Start 1 Zero + 1 Alpha
cd dev && docker compose up -d

# Check health
curl http://localhost:8080/health

Endpoints

Service	Protocol	Address	Purpose
Alpha HTTP	HTTP	`localhost:8080`	Queries, mutations, ontology
Alpha gRPC	gRPC	`localhost:9080`	dgo client connections
Zero HTTP	HTTP	`localhost:6080`	Cluster administration

Docker Deployment

# Build the OWLGraph Docker image
make local-image

# Run with Docker Compose
cd dev && docker compose up -d

The dev/docker-compose.yml defines a single-node cluster suitable for development and testing.