---
title: Biblos Semantic Search API
emoji: 📖
colorFrom: blue
colorTo: purple
sdk: docker
pinned: false
license: mit
---

# Biblos Semantic Search API

Semantic search over the entire Bible using BGE-large embeddings. This API keeps the model and embeddings in memory for fast responses (~50-100ms after initial load).

## Features

- ✅ Fast semantic search with BGE-large-en-v1.5 embeddings
- ✅ Model stays loaded in memory (no cold starts)
- ✅ Searches entire Bible (Old and New Testament)
- ✅ CORS enabled for easy integration
- ✅ RESTful JSON API with FastAPI
- ✅ Automatic API documentation at `/docs`

## API Endpoints

### `GET /`
Health check and API information

### `GET /health`
Detailed health status and available books

### `POST /search`
Perform semantic search

**Request Body:**
```json
{
  "query": "What did Jesus say about love?",
  "limit": 10  // Optional: results to return (1-100, default: 10)
}
```

**Response:**
```json
{
  "query": "What did Jesus say about love?",
  "results": [
    {
      "book": "jhn",
      "chapter": 13,
      "testament": "new",
      "content": "A new commandment I give to you, that you love one another...",
      "similarity": 0.892
    }
  ],
  "total_searched": 7957,
  "execution_time_ms": 87.3
}
```

## Quick Start

### Using cURL
```bash
curl -X POST https://dssjon-biblos-api.hf.space/search \
  -H "Content-Type: application/json" \
  -d '{
    "query": "faith and works",
    "limit": 5
  }'
```

### Using JavaScript
```javascript
const response = await fetch('https://dssjon-biblos-api.hf.space/search', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    query: 'faith and works',
    limit: 5
  })
})

const data = await response.json()
console.log(data.results)
```

### Using Python
```python
import requests

response = requests.post(
    'https://dssjon-biblos-api.hf.space/search',
    json={
        'query': 'faith and works',
        'limit': 5
    }
)

data = response.json()
print(data['results'])
```

## Interactive Documentation

Visit `/docs` on your deployed Space for interactive Swagger UI documentation where you can test the API directly.

## Performance

- First request: ~2-3 seconds (model loading)
- Subsequent requests: **50-100ms** (model already in memory)
- No cold starts after initial load
- Supports concurrent requests

## Model Information

- **Model:** BAAI/bge-large-en-v1.5
- **Embedding dimensions:** 1024
- **Total Bible passages:** ~31,000
- **Total books:** 66

## Deployment

This Space uses Docker SDK with FastAPI. The model and embeddings are loaded once at startup and kept in memory for fast responses.

## Data

The Bible embeddings are pre-computed and stored in the `data/` directory. See `prepare_data.py` for how to generate embeddings from your own Bible XML source.

## License

MIT License - Free to use for any purpose