Question 1

What is the Model Context Protocol (MCP)?

Accepted Answer

MCP is an open protocol that standardizes how applications provide context to Large Language Models (LLMs). It acts as a bridge, enabling AI models to access and interact with external data sources and tools in a consistent manner.

Question 2

What does the UBOS MCP Postgres Query Server do?

Accepted Answer

This server allows AI models, like those used in Claude Desktop, to securely query PostgreSQL databases. It provides read-only access, query validation, and timeout protection to safeguard your data.

Question 3

Is the MCP Postgres Query Server secure?

Accepted Answer

Yes, security is a top priority. The server enforces read-only access, validates queries to prevent harmful operations, uses SSL encryption for database connections, and has timeout protection to prevent resource exhaustion.

Question 4

What kind of SQL queries can be executed through the MCP Postgres Query Server?

Accepted Answer

Only `SELECT` queries are permitted. The server strictly enforces read-only access to prevent any modifications to your database.

Question 5

How do I connect the MCP Postgres Query Server to Claude Desktop?

Accepted Answer

You need to modify the Claude Desktop configuration file (`claude_desktop_config.json`) to add an entry for the `postgres-query-server`, specifying the command and arguments, including the PostgreSQL connection string.

Question 6

What happens if a query takes too long to execute?

Accepted Answer

The server has timeout protection. Queries running longer than 10 seconds (by default) are automatically terminated to prevent resource exhaustion.

Question 7

What format are the query results returned in?

Accepted Answer

Query results are returned in a structured JSON format, making it easy for AI models to parse and process the data.

Question 8

Can I customize the query validation logic?

Accepted Answer

Yes, you can modify the `isReadOnlyQuery()` function to enforce more specific query validation rules.

Question 9

Where do I find the code for the MCP Postgres Query Server?

Accepted Answer

The main server implementation is in `src/index.ts`. You can find the project on GitHub (link in the description).

Question 10

What is UBOS?

Accepted Answer

UBOS is a full-stack AI Agent Development Platform that helps you orchestrate AI Agents, connect them with your enterprise data, build custom AI Agents with your LLM model and Multi-Agent Systems. Our platform is designed to bring AI Agent capabilities to every business department.

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