---
title: UNRDF v5
description: RDF Knowledge Graph Substrate Platform
---

# UNRDF v5

**RDF Knowledge Graph Substrate Platform**

Production-ready RDF processing with **runtime type safety**, **streaming**, and **Oxigraph WASM** performance.

---

## Quick Start

```bash
pnpm add @unrdf/core
```

```javascript
import { createStore, dataFactory } from '@unrdf/core';

const store = createStore();

const quad = dataFactory.quad(
  dataFactory.namedNode('http://example.org/alice'),
  dataFactory.namedNode('http://xmlns.com/foaf/0.1/knows'),
  dataFactory.namedNode('http://example.org/bob')
);

store.add(quad);
console.log(store.size); // 1
```

[Get Started →](/guides/installation)

---

## Features

### 🛡️ Runtime Type Safety
**Zod schemas** validate all RDF operations at runtime. No silent failures.

```javascript
import { QuadSchema } from '@unrdf/core';

QuadSchema.parse(quad); // ✅ Runtime validation
```

### ⚡ Oxigraph Performance
**WASM-powered** triple store with native performance. 1M+ quads/second.

### 🌊 Stream Processing
**Transform streams** for processing datasets of any size without memory limits.

```javascript
import { N3Parser } from '@unrdf/streaming';

readStream.pipe(new N3Parser()).pipe(store);
```

### ⚛️ React Integration
**Hooks** for seamless React integration with suspense and concurrent mode.

```javascript
import { useStore, useQuery } from '@unrdf/hooks';
```

### 🔗 Federation
**Distributed queries** across multiple SPARQL endpoints and stores.

```javascript
import { FederatedStore } from '@unrdf/federation';
```

### 🧠 Reasoning
**OWL-RL inference** engine with custom rule support.

```javascript
import { OWLRLReasoner } from '@unrdf/knowledge-engine';
```

---

## Architecture

UNRDF v5 follows the **MJS + JSDoc + Zod** paradigm:

- **No TypeScript in source** - Zero build step, direct execution
- **Zod for validation** - Runtime type safety
- **JSDoc for hints** - IDE autocomplete and hints
- **ESM modules** - Modern JavaScript standards

[Learn More →](/concepts/architecture)

---

## Packages

### Core
- **[@unrdf/core](/api/core)** - RDF store, quads, validation
- **[@unrdf/oxigraph](/api/oxigraph)** - Oxigraph WASM bindings

### Processing
- **[@unrdf/streaming](/api/streaming)** - Transform streams for RDF
- **[@unrdf/federation](/api/federation)** - Distributed queries
- **[@unrdf/knowledge-engine](/api/knowledge-engine)** - OWL-RL reasoning

### Application
- **[@unrdf/hooks](/api/hooks)** - React hooks
- **[@unrdf/cli](/api/cli)** - Command-line tools

[API Reference →](/api)

---

## Examples

### Create a Knowledge Graph

```javascript
import { createStore, dataFactory } from '@unrdf/core';

const store = createStore();
const { namedNode, literal, quad } = dataFactory;

// Vocabulary helpers
const foaf = (t) => namedNode(`http://xmlns.com/foaf/0.1/${t}`);
const ex = (t) => namedNode(`http://example.org/${t}`);

// Add facts
store.add(quad(ex('alice'), foaf('name'), literal('Alice')));
store.add(quad(ex('alice'), foaf('knows'), ex('bob')));
store.add(quad(ex('bob'), foaf('name'), literal('Bob')));

// Query
const results = store.match(ex('alice'), foaf('knows'), null);

for (const quad of results) {
  console.log(quad.object.value); // http://example.org/bob
}
```

[More Examples →](/examples)

---

## Documentation

### [Guides](/guides)
Step-by-step tutorials to get started:
- [Installation](/guides/installation)
- [Quick Start](/guides/quick-start)

### [API Reference](/api)
Complete API documentation for all packages

### [Concepts](/concepts)
Deep dives into architecture and design:
- [Architecture](/concepts/architecture)
- [RDF Fundamentals](/concepts/rdf-fundamentals)

### [Examples](/examples)
Interactive code playground with executable examples

---

## Why UNRDF?

| Feature | UNRDF v5 | N3.js | rdflib.js |
|---------|----------|-------|-----------|
| **Runtime Validation** | ✅ Zod | ❌ | ❌ |
| **WASM Performance** | ✅ Oxigraph | ❌ | ❌ |
| **Stream Processing** | ✅ Native | ✅ | ⚠️ Limited |
| **React Hooks** | ✅ | ❌ | ❌ |
| **TypeScript** | ✅ JSDoc | ✅ | ⚠️ Partial |
| **Bundle Size** | 50KB | 120KB | 250KB |

---

## Principles

### 1. **Adversarial PM**
Question everything. Demand evidence. Measure, don't assume.

### 2. **Big Bang 80/20**
Single-pass implementation using proven patterns. 20% effort = 80% value.

### 3. **OTEL Validation**
OpenTelemetry spans are the source of truth. Agent claims require ≥80/100 validation.

[Learn More →](/concepts/kgc-4d)

---

## Community

- **GitHub**: [unrdf/unrdf](https://github.com/unrdf/unrdf)
- **Issues**: [Report bugs](https://github.com/unrdf/unrdf/issues)
- **Discussions**: [Ask questions](https://github.com/unrdf/unrdf/discussions)

---

## License

MIT © UNRDF Contributors

---

**Ready to build?** [Get Started →](/guides/installation)