-
license-
qualityA
maintenanceA Model Context Protocol server that provides read-only access to PostgreSQL databases. This server enables LLMs to inspect database schemas and execute read-only queries.
Last updated
120,645
89,238
MIT
Polybase MCP
by shrey715
Allows connecting to MongoDB (including Atlas) databases to list collections, get sample document structure, and query documents.
Allows connecting to PostgreSQL databases to list tables, get schema, and execute read-only queries.
Allows connecting to Supabase PostgreSQL databases to list tables, get schema, and execute read-only queries.
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@Polybase MCPshow tables in my PostgreSQL database"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Polybase MCP
Universal Database Adapter for PostgreSQL, Supabase & MongoDB — built with the Model Context Protocol (MCP).
Features
PostgreSQL/Supabase — Connect via SQLAlchemy
MongoDB — Connect to MongoDB & Atlas
Read-Only Safety — Only SELECT/find queries allowed
Docker Ready — Multi-stage build with non-root user
Streamable HTTP — Works with Claude Desktop & VS Code
Related MCP server: Supabase MCP Server
Quick Start
Docker (Recommended)
# Build
docker build -t polybase-mcp -f docker/Dockerfile .
# Run
docker run -p 8000:8000 polybase-mcpServer available at http://localhost:8000/mcp
Local Development
git clone https://github.com/shrey715/polybase-mcp.git
cd polybase-mcp
uv sync
uv run python -m mcp_server.mainMCP Client Config
VS Code (.vscode/mcp.json)
{
"servers": {
"polybase-mcp": {
"url": "http://localhost:8000/mcp",
"type": "http"
}
}
}Claude Desktop
{
"mcpServers": {
"polybase-mcp": {
"url": "http://localhost:8000/mcp",
"transport": "http"
}
}
}Available Tools
Tool | Description |
| Connect to PostgreSQL or MongoDB |
| List tables (PG) or collections (Mongo) |
| Get table columns or sample doc structure |
| Execute read-only queries |
Connection Examples
# PostgreSQL
connect_db("postgresql://user:pass@host:5432/dbname")
# MongoDB
connect_db("mongodb://user:pass@host:27017/dbname")
# MongoDB Atlas
connect_db("mongodb+srv://user:pass@cluster.mongodb.net/dbname")Query Examples
# PostgreSQL - SQL
query_db("SELECT * FROM users LIMIT 10")
# MongoDB - collection:filter format
query_db("users") # all docs
query_db('users:{"active": true}') # with filterEnvironment Variables
Variable | Default | Description |
|
| Server bind address |
|
| Server port |
License
MIT
This server cannot be installed
Maintenance
–Maintainers
–Response time
–Release cycle
–Releases (12mo)
Commit activity
Resources
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Looking for Admin?
If you are the server author, to access and configure the admin panel.
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- Alicense-qualityDmaintenanceA Model Context Protocol server that provides read-only access to PostgreSQL databases, enabling LLMs to inspect database schemas and execute read-only queries.Last updated120,645MIT
- Alicense-qualityDmaintenanceA Model Context Protocol server that provides read-only access to PostgreSQL databases, enabling LLMs to inspect database schemas and execute read-only queries.Last updated120,645MIT
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