All-Search MCP Server

# LangConnect LangConnect is a RAG (Retrieval-Augmented Generation) service built with FastAPI and LangChain. It provides a REST API for managing collections and documents, with PostgreSQL and pgvector for vector storage. ## Features - FastAPI-based REST API - PostgreSQL with pgvector for document storage and vector embeddings - Docker support for easy deployment ## Getting Started ### Prerequisites - Docker and Docker Compose - Python 3.11 or higher ### Running with Docker 1. Clone the repository: ```bash git clone https://github.com/langchain-ai/langconnect.git cd langconnect ``` 2. Start the services: ```bash docker-compose up -d ``` This will: - Start a PostgreSQL database with pgvector extension - Build and start the LangConnect API service 3. Access the API: - API documentation: http://localhost:8080/docs - Health check: http://localhost:8080/health ### Development To run the services in development mode with live reload: ```bash docker-compose up ``` ## API Documentation The API documentation is available at http://localhost:8080/docs when the service is running. ## Environment Variables The following environment variables can be configured in the `docker-compose.yml` file: | Variable | Description | Default | |----------|-------------|---------| | POSTGRES_HOST | PostgreSQL host | postgres | | POSTGRES_PORT | PostgreSQL port | 5432 | | POSTGRES_USER | PostgreSQL username | postgres | | POSTGRES_PASSWORD | PostgreSQL password | postgres | | POSTGRES_DB | PostgreSQL database name | postgres | ## License This project is licensed under the terms of the license included in the repository. ## Endpoints ### Collections #### `/collections` (GET) List all collections. #### `/collections` (POST) Create a new collection. #### `/collections/{collection_id}` (GET) Get a specific collection by ID. #### `/collections/{collection_id}` (DELETE) Delete a specific collection by ID. ### Documents #### `/collections/{collection_id}/documents` (GET) List all documents in a specific collection. #### `/collections/{collection_id}/documents` (POST) Create a new document in a specific collection. #### `/collections/{collection_id}/documents/{document_id}` (DELETE) Delete a specific document by ID. #### `/collections/{collection_id}/documents/search` (POST) Search for documents using semantic search.