Document Retrieval MCP Server
README.md
# Presentation Retrieval API - Agent-Ready REST Service
🚀 **LIVE API**: https://web-production-61829.up.railway.app
A production-ready REST API service that enables AI agents to autonomously build presentations by searching and retrieving relevant content from vector-embedded documents. Deployed on Railway with semantic search capabilities powered by OpenAI embeddings and Supabase vector database.
## 📋 Overview
The Presentation Retrieval API is designed specifically for **AI agent integration** to enable autonomous presentation creation. It provides 7 specialized endpoints for content discovery, key point extraction, slide generation, and supporting data retrieval. The service queries pre-generated document embeddings stored in Supabase PostgreSQL with pgvector extension.
### 🎯 **Perfect for AI Agents Building:**
- 📊 **Autonomous Presentations** - Complete slide deck generation
- 🔍 **Research Summaries** - Key insights from multiple documents
- 📈 **Data-Driven Reports** - Statistics and supporting evidence
- 📝 **Content Synthesis** - Multi-document analysis and compilation
- 🎨 **Presentation Templates** - Structure and format suggestions
## ✨ Key Features for AI Agents
- 🔍 **Semantic Search**: Natural language queries with OpenAI text-embedding-3-small
- 🎯 **Presentation-Focused**: 7 specialized endpoints for autonomous slide creation
- ⚡ **High Performance**: Connection pooling (5-20 connections), TTL caching (5min)
- 📊 **Content Intelligence**: Auto-extraction of key points, statistics, and citations
- 🔄 **Agent-Friendly**: RESTful design, JSON schemas, comprehensive error handling
- 🚀 **Production Ready**: Deployed on Railway, health monitoring, CORS enabled
- 🔒 **Secure Access**: User/session/project filtering, optional JWT authentication
## 🚀 Quick Start for Agents
### Test the API
```bash
# Health check
curl https://web-production-61829.up.railway.app/health
# Interactive API docs
open https://web-production-61829.up.railway.app/docs
```
### Basic Content Search
```bash
curl -X POST https://web-production-61829.up.railway.app/search-presentation-content \
-H "Content-Type: application/json" \
-d '{
"query": "machine learning algorithms",
"limit": 10,
"similarity_threshold": 0.7
}'
```
## 📡 API Endpoints Reference
**Base URL**: `https://web-production-61829.up.railway.app`
### 1. 🔍 Search Presentation Content
**Purpose**: Primary endpoint for finding relevant content for presentations
```http
POST /search-presentation-content
```
**Request:**
```json
{
"query": "machine learning algorithms",
"limit": 10,
"similarity_threshold": 0.7,
"content_types": ["key_point", "supporting_data"],
"topic": "AI fundamentals",
"audience_level": "intermediate",
"user_id": "optional-user-filter",
"metadata_filters": {"tag": "technical"}
}
```
**Response:**
```json
{
"success": true,
"query": "machine learning algorithms",
"results": [
{
"chunk_id": "chunk_123",
"document_id": "doc_456",
"content": "Machine learning algorithms can be categorized into supervised, unsupervised, and reinforcement learning...",
"similarity_score": 0.89,
"metadata": {
"page_number": 15,
"section_title": "ML Fundamentals"
}
}
],
"total_results": 8,
"execution_time_ms": 145
}
```
### 2. 🎯 Extract Key Points
**Purpose**: Extract structured key points from specific documents
```http
POST /extract-key-points
```
**Request:**
```json
{
"document_ids": ["doc_123", "doc_456"],
"topic": "neural networks",
"max_points": 10,
"summarize": true
}
```
**Response:**
```json
{
"success": true,
"topic": "neural networks",
"key_points": [
{
"point": "Neural networks consist of interconnected nodes called neurons",
"supporting_text": "Each neuron receives inputs, processes them, and produces an output...",
"source_document_id": "doc_123",
"importance_score": 0.95,
"page_number": 8,
"tags": ["architecture", "fundamentals"]
}
],
"total_documents_processed": 2,
"execution_time_ms": 320
}
```
### 3. 🎨 Generate Slide Suggestions
**Purpose**: AI-powered slide content generation for presentations
```http
POST /generate-slide-suggestions
```
**Request:**
```json
{
"topic": "Introduction to Machine Learning",
"outline": ["Definition", "Types", "Applications", "Challenges"],
"duration_minutes": 30,
"slide_count": 15,
"style": "professional"
}
```
**Response:**
```json
{
"success": true,
"slides": [
{
"slide_number": 1,
"title": "What is Machine Learning?",
"content_type": "introduction",
"main_content": "Machine learning is a subset of artificial intelligence...",
"bullet_points": [
"Subset of artificial intelligence",
"Learns from data without explicit programming",
"Improves performance with experience"
],
"speaker_notes": "Start with a relatable example...",
"suggested_visuals": "Brain network diagram",
"citations": ["doc_123"]
}
],
"total_slides": 15,
"estimated_duration_minutes": 30,
"presentation_outline": ["What is Machine Learning?", "Types of ML", "..."],
"execution_time_ms": 890
}
```
### 4. 📊 Find Supporting Data
**Purpose**: Discover statistics, data points, and visualization suggestions
```http
POST /find-supporting-data
```
**Request:**
```bash
curl -X POST "https://web-production-61829.up.railway.app/find-supporting-data?query=AI market growth&limit=5"
```
**Response:**
```json
{
"success": true,
"query": "AI market growth",
"data_points": [
{
"chunk_id": "stat_789",
"content": "The global AI market is expected to reach $1.8 trillion by 2030",
"similarity_score": 0.91,
"metadata": {"source": "McKinsey Report 2023"}
}
],
"statistics": [
{"metric": "Market Size 2030", "value": "$1.8T", "source": "McKinsey"}
],
"visualizations": [
{"type": "line_chart", "title": "AI Market Growth 2020-2030"}
],
"total_results": 5,
"execution_time_ms": 210
}
```
### 5. 📚 Get User Documents
**Purpose**: List available documents for presentation use
```http
GET /user-documents/presentation-ready
```
**Response:**
```json
{
"success": true,
"documents": [
{
"document_id": "doc_123",
"filename": "AI_Research_2023.pdf",
"title": "Artificial Intelligence Research Trends",
"chunk_count": 45,
"upload_date": "2023-12-01T10:00:00Z",
"metadata": {"tags": ["AI", "research", "2023"]}
}
],
"total_documents": 12,
"presentation_ready_count": 12,
"execution_time_ms": 25
}
```
### 6. 🔍 Find Presentation Examples
**Purpose**: Discover existing presentation templates and structures
```http
GET /find-presentation-examples?topic=machine learning&limit=5
```
**Response:**
```json
{
"success": true,
"examples": [
{
"title": "ML 101: A Beginner's Guide",
"structure": ["Introduction", "Core Concepts", "Algorithms", "Applications"],
"slide_count": 20,
"estimated_duration": 25,
"audience_level": "beginner",
"key_topics": ["supervised learning", "neural networks", "applications"]
}
],
"total_examples": 5,
"execution_time_ms": 180
}
```
### 7. 📝 Extract Citations & Sources
**Purpose**: Generate proper citations for presentation sources
```http
POST /extract-citations-sources
```
**Request:**
```json
{
"document_ids": ["doc_123", "doc_456"],
"citation_style": "APA",
"include_urls": true
}
```
**Response:**
```json
{
"success": true,
"citations": [
{
"text": "Machine learning algorithms have shown remarkable progress...",
"source": "Smith, J. (2023). AI Advances in Healthcare",
"document_id": "doc_123",
"page_number": 15,
"url": "https://example.com/paper",
"author": "Dr. Jane Smith",
"date": "2023-03-15T00:00:00Z"
}
],
"total_citations": 8,
"citation_style": "APA",
"execution_time_ms": 120
}
```
### 8. ❤️ Health Check
**Purpose**: Monitor API status and dependencies
```http
GET /health
```
**Response:**
```json
{
"status": "healthy",
"version": "1.0.1",
"database_connected": true,
"cache_enabled": true,
"services": {
"openai": true,
"database": true,
"cache": true
}
}
```
## 🤖 Agent Integration Examples
### Python with requests
```python
import requests
import json
class PresentationAPI:
def __init__(self, base_url="https://web-production-61829.up.railway.app"):
self.base_url = base_url
def search_content(self, query, limit=10, similarity_threshold=0.7):
"""Search for presentation content"""
response = requests.post(
f"{self.base_url}/search-presentation-content",
json={
"query": query,
"limit": limit,
"similarity_threshold": similarity_threshold
}
)
return response.json()
def generate_slides(self, topic, outline=None, slide_count=10):
"""Generate slide suggestions"""
response = requests.post(
f"{self.base_url}/generate-slide-suggestions",
json={
"topic": topic,
"outline": outline,
"slide_count": slide_count,
"style": "professional"
}
)
return response.json()
def extract_key_points(self, document_ids, topic, max_points=10):
"""Extract key points from documents"""
response = requests.post(
f"{self.base_url}/extract-key-points",
json={
"document_ids": document_ids,
"topic": topic,
"max_points": max_points,
"summarize": True
}
)
return response.json()
# Usage example
api = PresentationAPI()
# Step 1: Search for content
results = api.search_content("machine learning algorithms", limit=5)
print(f"Found {len(results['results'])} relevant chunks")
# Step 2: Generate slides
slides = api.generate_slides("Introduction to Machine Learning", slide_count=8)
print(f"Generated {slides['total_slides']} slides")
# Step 3: Extract key points
if results['results']:
doc_ids = [chunk['document_id'] for chunk in results['results'][:3]]
key_points = api.extract_key_points(doc_ids, "machine learning", max_points=5)
print(f"Extracted {len(key_points['key_points'])} key points")
```
### LangChain Integration
```python
from langchain.tools import BaseTool
from langchain.agents import AgentExecutor, create_react_agent
from langchain.prompts import PromptTemplate
import requests
class PresentationSearchTool(BaseTool):
name = "presentation_search"
description = "Search for presentation content using semantic similarity"
def _run(self, query: str, limit: int = 10) -> str:
response = requests.post(
"https://web-production-61829.up.railway.app/search-presentation-content",
json={"query": query, "limit": limit}
)
data = response.json()
if data["success"]:
results = []
for chunk in data["results"]:
results.append(f"Content: {chunk['content'][:200]}... (Score: {chunk['similarity_score']:.2f})")
return "\n\n".join(results)
return "No results found"
class SlideGeneratorTool(BaseTool):
name = "generate_slides"
description = "Generate slide suggestions for a presentation topic"
def _run(self, topic: str, slide_count: int = 10) -> str:
response = requests.post(
"https://web-production-61829.up.railway.app/generate-slide-suggestions",
json={
"topic": topic,
"slide_count": slide_count,
"style": "professional"
}
)
data = response.json()
if data["success"]:
slides_summary = []
for slide in data["slides"]:
slides_summary.append(f"Slide {slide['slide_number']}: {slide['title']}")
return f"Generated {len(data['slides'])} slides:\n" + "\n".join(slides_summary)
return "Failed to generate slides"
# Create agent with presentation tools
tools = [PresentationSearchTool(), SlideGeneratorTool()]
prompt = PromptTemplate.from_template("""
You are a presentation creation assistant. Use the available tools to help create presentations.
Tools available:
{tools}
Question: {input}
{agent_scratchpad}
""")
# agent = create_react_agent(llm, tools, prompt)
# agent_executor = AgentExecutor(agent=agent, tools=tools, verbose=True)
```
### JavaScript/Node.js Integration
```javascript
class PresentationAPI {
constructor(baseUrl = 'https://web-production-61829.up.railway.app') {
this.baseUrl = baseUrl;
}
async searchContent(query, limit = 10, similarityThreshold = 0.7) {
const response = await fetch(`${this.baseUrl}/search-presentation-content`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
query,
limit,
similarity_threshold: similarityThreshold
})
});
return response.json();
}
async generateSlides(topic, outline = null, slideCount = 10) {
const response = await fetch(`${this.baseUrl}/generate-slide-suggestions`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
topic,
outline,
slide_count: slideCount,
style: 'professional'
})
});
return response.json();
}
async findSupportingData(query, limit = 5) {
const response = await fetch(
`${this.baseUrl}/find-supporting-data?query=${encodeURIComponent(query)}&limit=${limit}`,
{ method: 'POST' }
);
return response.json();
}
}
// Usage example
const api = new PresentationAPI();
async function createPresentation(topic) {
try {
// Step 1: Search for content
const contentResults = await api.searchContent(topic, 10);
console.log(`Found ${contentResults.total_results} relevant pieces of content`);
// Step 2: Generate slide structure
const slides = await api.generateSlides(topic, null, 12);
console.log(`Generated ${slides.total_slides} slides`);
// Step 3: Find supporting data
const supportingData = await api.findSupportingData(topic);
console.log(`Found ${supportingData.total_results} supporting data points`);
return {
content: contentResults.results,
slides: slides.slides,
data: supportingData.data_points
};
} catch (error) {
console.error('Error creating presentation:', error);
}
}
// Create a presentation about AI
createPresentation('artificial intelligence trends').then(presentation => {
console.log('Presentation created successfully!');
});
```
## 🔄 Autonomous Presentation Builder Workflow
Here's a complete workflow for an AI agent to autonomously build a presentation:
### Step 1: Topic Analysis & Content Discovery
```python
def discover_content(topic, subtopics=None):
"""Discover relevant content for the presentation"""
api = PresentationAPI()
# Main topic search
main_results = api.search_content(topic, limit=15, similarity_threshold=0.75)
# Subtopic searches if provided
subtopic_results = []
if subtopics:
for subtopic in subtopics:
results = api.search_content(f"{topic} {subtopic}", limit=8)
subtopic_results.extend(results['results'])
return {
'main_content': main_results['results'],
'subtopic_content': subtopic_results,
'total_chunks': len(main_results['results']) + len(subtopic_results)
}
```
### Step 2: Structure Planning
```python
def plan_presentation_structure(topic, duration_minutes=30):
"""Plan the presentation structure and slide count"""
api = PresentationAPI()
# Estimate slide count (2-3 minutes per slide)
slide_count = max(8, min(20, duration_minutes // 2))
# Generate initial structure
slides = api.generate_slides(
topic=topic,
slide_count=slide_count,
duration_minutes=duration_minutes
)
# Get presentation examples for inspiration
examples_response = requests.get(
f"https://web-production-61829.up.railway.app/find-presentation-examples",
params={"topic": topic, "limit": 3}
)
examples = examples_response.json()
return {
'slides': slides['slides'],
'outline': slides['presentation_outline'],
'estimated_duration': slides['estimated_duration_minutes'],
'examples': examples.get('examples', [])
}
```
### Step 3: Content Population
```python
def populate_slide_content(slides, discovered_content):
"""Populate slides with discovered content"""
api = PresentationAPI()
enriched_slides = []
for slide in slides:
# Find most relevant content for this slide
slide_query = f"{slide['title']} {slide['main_content'][:100]}"
relevant_content = api.search_content(slide_query, limit=3)
# Get supporting data if needed
if slide['content_type'] in ['supporting_data', 'key_point']:
supporting_data = requests.post(
"https://web-production-61829.up.railway.app/find-supporting-data",
params={"query": slide['title'], "limit": 2}
).json()
slide['supporting_data'] = supporting_data.get('data_points', [])
# Add relevant content to slide
slide['source_content'] = relevant_content['results']
enriched_slides.append(slide)
return enriched_slides
```
### Step 4: Citation & Source Management
```python
def add_citations(slides, source_documents):
"""Add proper citations to all slides"""
api = PresentationAPI()
# Extract citations from all source documents
doc_ids = list(set([doc['document_id'] for doc in source_documents]))
citations_response = requests.post(
"https://web-production-61829.up.railway.app/extract-citations-sources",
json={
"document_ids": doc_ids,
"citation_style": "APA",
"include_urls": True
}
)
citations = citations_response.json()
# Map citations to slides
for slide in slides:
slide_citations = []
for source in slide.get('source_content', []):
doc_id = source['document_id']
# Find matching citations
matching_citations = [
c for c in citations['citations']
if c['document_id'] == doc_id
]
slide_citations.extend(matching_citations)
slide['citations'] = slide_citations
return slides
```
### Step 5: Complete Autonomous Workflow
```python
def create_autonomous_presentation(topic, duration_minutes=30, subtopics=None):
"""Complete autonomous presentation creation workflow"""
print(f"🎯 Creating presentation: {topic}")
# Step 1: Discover content
print("🔍 Discovering content...")
content = discover_content(topic, subtopics)
print(f" Found {content['total_chunks']} relevant content pieces")
# Step 2: Plan structure
print("📋 Planning structure...")
structure = plan_presentation_structure(topic, duration_minutes)
print(f" Created {len(structure['slides'])} slides")
# Step 3: Populate content
print("📝 Populating slide content...")
populated_slides = populate_slide_content(
structure['slides'],
content['main_content'] + content['subtopic_content']
)
# Step 4: Add citations
print("📚 Adding citations...")
final_slides = add_citations(
populated_slides,
content['main_content'] + content['subtopic_content']
)
print("✅ Presentation created successfully!")
return {
'title': topic,
'slides': final_slides,
'outline': structure['outline'],
'duration': structure['estimated_duration'],
'source_count': content['total_chunks'],
'citation_count': sum(len(s.get('citations', [])) for s in final_slides)
}
# Example usage
presentation = create_autonomous_presentation(
topic="The Future of Artificial Intelligence",
duration_minutes=25,
subtopics=["machine learning", "neural networks", "AI ethics", "automation"]
)
print(f"Created presentation with {len(presentation['slides'])} slides")
print(f"Estimated duration: {presentation['duration']} minutes")
print(f"Sources cited: {presentation['citation_count']}")
```
## 🧪 Testing & Development
### Interactive API Testing
```bash
# 1. Health Check
curl https://web-production-61829.up.railway.app/health
# 2. Test Content Search
curl -X POST https://web-production-61829.up.railway.app/search-presentation-content \
-H "Content-Type: application/json" \
-d '{
"query": "artificial intelligence",
"limit": 5,
"similarity_threshold": 0.7
}'
# 3. Test Slide Generation
curl -X POST https://web-production-61829.up.railway.app/generate-slide-suggestions \
-H "Content-Type: application/json" \
-d '{
"topic": "Introduction to AI",
"slide_count": 8,
"duration_minutes": 20
}'
```
### API Documentation & Explorer
- **Swagger UI**: https://web-production-61829.up.railway.app/docs
- **ReDoc**: https://web-production-61829.up.railway.app/redoc
- **OpenAPI JSON**: https://web-production-61829.up.railway.app/openapi.json
### Response Times & Performance
- **Search queries**: 100-300ms (depending on result count)
- **Slide generation**: 500-1000ms (depending on complexity)
- **Key points extraction**: 200-500ms
- **Health check**: <50ms
### Error Handling Examples
```python
import requests
def handle_api_errors(response):
"""Example error handling for the API"""
if response.status_code == 200:
data = response.json()
if data.get('success'):
return data
else:
print(f"API Error: {data.get('error', 'Unknown error')}")
elif response.status_code == 422:
print("Validation Error:", response.json())
elif response.status_code == 500:
print("Server Error:", response.text)
else:
print(f"HTTP {response.status_code}: {response.text}")
return None
# Example usage
response = requests.post(
"https://web-production-61829.up.railway.app/search-presentation-content",
json={"query": "test", "limit": 5}
)
result = handle_api_errors(response)
```
### Rate Limiting & Best Practices
```python
import time
import requests
from functools import wraps
def rate_limit(calls_per_second=5):
"""Simple rate limiting decorator"""
min_interval = 1.0 / calls_per_second
last_called = [0.0]
def decorator(func):
@wraps(func)
def wrapper(*args, **kwargs):
elapsed = time.time() - last_called[0]
left_to_wait = min_interval - elapsed
if left_to_wait > 0:
time.sleep(left_to_wait)
ret = func(*args, **kwargs)
last_called[0] = time.time()
return ret
return wrapper
return decorator
@rate_limit(calls_per_second=3) # 3 calls per second
def search_content(query):
response = requests.post(
"https://web-production-61829.up.railway.app/search-presentation-content",
json={"query": query, "limit": 10}
)
return response.json()
```
### Client Libraries & SDKs
#### Python SDK Example
```python
# presentation_api_client.py
import requests
from typing import List, Dict, Optional
import logging
class PresentationAPIClient:
def __init__(self, base_url: str = "https://web-production-61829.up.railway.app"):
self.base_url = base_url.rstrip('/')
self.session = requests.Session()
self.logger = logging.getLogger(__name__)
def _make_request(self, method: str, endpoint: str, **kwargs) -> Dict:
"""Make HTTP request with error handling"""
url = f"{self.base_url}{endpoint}"
try:
response = self.session.request(method, url, **kwargs)
response.raise_for_status()
return response.json()
except requests.exceptions.RequestException as e:
self.logger.error(f"API request failed: {e}")
raise
def search_content(self, query: str, **kwargs) -> Dict:
return self._make_request(
'POST', '/search-presentation-content',
json={'query': query, **kwargs}
)
def generate_slides(self, topic: str, **kwargs) -> Dict:
return self._make_request(
'POST', '/generate-slide-suggestions',
json={'topic': topic, **kwargs}
)
def extract_key_points(self, document_ids: List[str], topic: str, **kwargs) -> Dict:
return self._make_request(
'POST', '/extract-key-points',
json={'document_ids': document_ids, 'topic': topic, **kwargs}
)
def health_check(self) -> Dict:
return self._make_request('GET', '/health')
```
#### TypeScript SDK Example
```typescript
// presentation-api-client.ts
interface SearchRequest {
query: string;
limit?: number;
similarity_threshold?: number;
content_types?: string[];
user_id?: string;
}
interface SlideRequest {
topic: string;
outline?: string[];
slide_count?: number;
duration_minutes?: number;
}
class PresentationAPIClient {
private baseUrl: string;
constructor(baseUrl = 'https://web-production-61829.up.railway.app') {
this.baseUrl = baseUrl.replace(/\/$/, '');
}
private async makeRequest<T>(
method: string,
endpoint: string,
data?: any
): Promise<T> {
const url = `${this.baseUrl}${endpoint}`;
const config: RequestInit = {
method,
headers: { 'Content-Type': 'application/json' },
};
if (data) {
config.body = JSON.stringify(data);
}
const response = await fetch(url, config);
if (!response.ok) {
throw new Error(`HTTP ${response.status}: ${await response.text()}`);
}
return response.json();
}
async searchContent(request: SearchRequest) {
return this.makeRequest('POST', '/search-presentation-content', request);
}
async generateSlides(request: SlideRequest) {
return this.makeRequest('POST', '/generate-slide-suggestions', request);
}
async healthCheck() {
return this.makeRequest('GET', '/health');
}
}
```
## 🔧 Configuration & Environment Variables
### Required Environment Variables
```env
# Database Connection (Required)
DATABASE_URL=postgresql://postgres.[project]:[password]@[host]:6543/postgres
# OpenAI Configuration (Required)
OPENAI_API_KEY=sk-proj-...
# Supabase Configuration (Optional)
SUPABASE_URL=https://[project].supabase.co
SUPABASE_API_KEY=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...
```
### Optional Configuration
```env
# Model Settings
EMBEDDING_MODEL=text-embedding-3-small
VECTOR_DIMENSIONS=1536
# Performance Settings
DB_POOL_MIN_SIZE=5
DB_POOL_MAX_SIZE=20
CACHE_TTL=300
CACHE_MAX_SIZE=1000
# Query Settings
MAX_RESULTS_LIMIT=20
DEFAULT_SIMILARITY_THRESHOLD=0.7
# Logging
LOG_LEVEL=INFO
```
### Authentication Configuration
```env
# JWT Settings (Optional)
JWT_SECRET_KEY=your-secret-key-change-in-production
ACCESS_TOKEN_EXPIRE_MINUTES=30
REQUIRE_AUTH=false # Set to true to enforce authentication
```
## Prerequisites
- Python 3.10 or higher
- Supabase project with pgvector extension enabled
- Existing document embeddings in Supabase (generated using OpenAI text-embedding-3-small)
- OpenAI API key for query embedding generation
- Supabase service role key
## Database Schema
The server expects the following tables in your Supabase database:
```sql
-- Documents table
CREATE TABLE documents (
id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
user_id uuid NOT NULL,
session_id text NOT NULL,
project_id text DEFAULT '-',
filename text NOT NULL,
file_type text NOT NULL,
file_size integer,
total_chunks integer,
upload_date timestamp with time zone DEFAULT now(),
processing_status text DEFAULT 'completed',
metadata jsonb
);
-- Document embeddings table
CREATE TABLE document_embeddings (
id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
document_id uuid REFERENCES documents(id) ON DELETE CASCADE,
user_id uuid NOT NULL,
session_id text NOT NULL,
project_id text DEFAULT '-',
chunk_text text NOT NULL,
embedding vector(1536), -- OpenAI text-embedding-3-small
chunk_index integer NOT NULL,
chunk_metadata jsonb,
created_at timestamp with time zone DEFAULT now()
);
-- Create indexes for performance
CREATE INDEX idx_embeddings_vector ON document_embeddings
USING ivfflat (embedding vector_cosine_ops) WITH (lists = 100);
CREATE INDEX idx_embeddings_user_session ON document_embeddings(user_id, session_id);
CREATE INDEX idx_documents_user_session ON documents(user_id, session_id);
```
## Installation
### Option 1: Install from source
```bash
# Clone the repository
git clone https://github.com/your-org/document-retrieval-mcp
cd document-retrieval-mcp
# Create virtual environment
python -m venv venv
source venv/bin/activate # On Windows: venv\Scripts\activate
# Install dependencies
pip install -r requirements.txt
```
### Option 2: Install as package
```bash
pip install document-retrieval-mcp
```
## Configuration
1. Copy the environment template:
```bash
cp .env.example .env
```
2. Edit `.env` with your configuration:
```env
# Required
SUPABASE_URL=https://your-project.supabase.co
SUPABASE_API_KEY=your-service-role-key
OPENAI_API_KEY=your-openai-api-key
# Optional - customize as needed
EMBEDDING_MODEL=text-embedding-3-small
MAX_RESULTS_LIMIT=20
DEFAULT_SIMILARITY_THRESHOLD=0.7
```
## Usage
### Running the Server
```bash
# Direct execution
python src/server.py
# Or if installed as package
document-retrieval-mcp
```
### Claude Desktop Integration
Add the following to your Claude Desktop configuration (`~/Library/Application Support/Claude/claude_desktop_config.json` on macOS):
```json
{
"mcp_servers": {
"document-retrieval": {
"command": "python",
"args": ["/path/to/document-retrieval-mcp/src/server.py"],
"env": {
"SUPABASE_URL": "https://your-project.supabase.co",
"SUPABASE_API_KEY": "your-service-role-key",
"OPENAI_API_KEY": "your-openai-api-key"
}
}
}
}
```
## Available Tools
### 1. `search_documents`
Search for documents using semantic similarity.
**Parameters:**
- `query` (string, required): Search query text
- `user_id` (string, required): User identifier
- `session_id` (string, required): Session identifier
- `project_id` (string, optional): Project filter (default: "-")
- `top_k` (integer, optional): Number of results (default: 5, max: 20)
- `similarity_threshold` (float, optional): Minimum similarity (default: 0.7)
**Example:**
```json
{
"tool": "search_documents",
"params": {
"query": "machine learning algorithms",
"user_id": "user-123",
"session_id": "session-456",
"top_k": 10
}
}
```
### 2. `get_document_context`
Retrieve full document or specific chunks.
**Parameters:**
- `document_id` (string, required): Document UUID
- `user_id` (string, required): User identifier
- `session_id` (string, required): Session identifier
- `chunk_ids` (array, optional): Specific chunk UUIDs to retrieve
**Example:**
```json
{
"tool": "get_document_context",
"params": {
"document_id": "550e8400-e29b-41d4-a716-446655440000",
"user_id": "user-123",
"session_id": "session-456"
}
}
```
### 3. `list_user_documents`
List all documents accessible to the user.
**Parameters:**
- `user_id` (string, required): User identifier
- `session_id` (string, required): Session identifier
- `project_id` (string, optional): Project filter
- `page` (integer, optional): Page number (default: 1)
- `per_page` (integer, optional): Items per page (default: 20, max: 100)
**Example:**
```json
{
"tool": "list_user_documents",
"params": {
"user_id": "user-123",
"session_id": "session-456",
"page": 1,
"per_page": 50
}
}
```
### 4. `get_similar_chunks`
Find chunks similar to a reference chunk.
**Parameters:**
- `chunk_id` (string, required): Reference chunk UUID
- `user_id` (string, required): User identifier
- `session_id` (string, required): Session identifier
- `top_k` (integer, optional): Number of results (default: 3, max: 10)
**Example:**
```json
{
"tool": "get_similar_chunks",
"params": {
"chunk_id": "chunk-789",
"user_id": "user-123",
"session_id": "session-456",
"top_k": 5
}
}
```
## Resources
The server provides two informational resources:
### 1. `resource://server-info`
Returns current server status and configuration.
### 2. `resource://schema-info`
Returns database schema information.
## Usage Examples with Claude
After configuring the server in Claude Desktop, you can use natural language:
```
User: "Search for documents about machine learning algorithms"
Claude: I'll search for documents about machine learning algorithms.
[Uses search_documents tool]
User: "Show me the full content of document ABC"
Claude: I'll retrieve the complete content of that document.
[Uses get_document_context tool]
User: "What documents do I have access to?"
Claude: Let me list all your available documents.
[Uses list_user_documents tool]
User: "Find similar content to this chunk"
Claude: I'll find chunks with similar content.
[Uses get_similar_chunks tool]
```
## Performance Optimization
The server implements several optimization strategies:
1. **Connection Pooling**: Maintains 5-20 database connections
2. **TTL Caching**: Caches metadata for 5 minutes
3. **Vector Indexes**: Uses IVFFlat indexes for fast similarity search
4. **Query Optimization**: Efficient SQL with proper WHERE clauses
5. **Async Operations**: Full async/await for concurrent requests
## Security
- **Service Role Key**: Bypasses RLS for performance
- **Application-Level Security**: WHERE clauses filter by user/session/project
- **Input Validation**: JSON Schema validation on all parameters
- **Error Sanitization**: No sensitive data in error messages
- **Environment Variables**: Secrets never hardcoded
## Troubleshooting
### Common Issues
1. **"Missing required environment variables"**
- Ensure all required variables are set in `.env` or environment
2. **"Connection pool timeout"**
- Check Supabase URL and API key
- Verify network connectivity
3. **"No results above similarity threshold"**
- Lower the similarity_threshold parameter
- Ensure embeddings exist for the user/session
4. **"Document not found or access denied"**
- Verify user_id and session_id match existing records
- Check document_id is valid
### Logging
Enable debug logging by setting:
```bash
export LOG_LEVEL=DEBUG
```
## Development
### Running Tests
```bash
# Install dev dependencies
pip install -e ".[dev]"
# Run tests
pytest
# With coverage
pytest --cov=src --cov-report=html
```
### Code Quality
```bash
# Format code
black src tests
# Lint
ruff check src tests
# Type checking
mypy src
```
## Architecture
The server follows a layered architecture:
```
┌─────────────────┐
│ MCP Client │
│ (Claude Desktop)│
└────────┬────────┘
│ JSON-RPC
┌────────▼────────┐
│ MCP Server │
│ (Protocol Layer)│
└────────┬────────┘
│
┌────────▼────────┐
│ Business Logic │
│ (Tools & Cache)│
└────────┬────────┘
│
┌────────▼────────┐
│ Data Access │
│ (AsyncPG + OAI) │
└────────┬────────┘
│
┌────────▼────────┐
│ Supabase │
│ (PostgreSQL + │
│ pgvector) │
└─────────────────┘
```
## Contributing
Contributions are welcome! Please:
1. Fork the repository
2. Create a feature branch
3. Add tests for new functionality
4. Ensure all tests pass
5. Submit a pull request
## License
MIT License - see LICENSE file for details.
## Support
For issues and questions:
- GitHub Issues: [https://github.com/your-org/document-retrieval-mcp/issues](https://github.com/your-org/document-retrieval-mcp/issues)
- Documentation: [https://docs.your-org.com/mcp/document-retrieval](https://docs.your-org.com/mcp/document-retrieval)
## Acknowledgments
- Built with the [Model Context Protocol](https://modelcontextprotocol.io)
- Powered by [Supabase](https://supabase.com) and [pgvector](https://github.com/pgvector/pgvector)
- Embeddings by [OpenAI](https://openai.com)This server cannot be deployed
Maintenance
ActivityInactive
ResponsivenessNo issues