Pg Aiguide

Name: Pg Aiguide
Author: timescale

by timescaleversion 0.6.1i★ –iComputer or cloud

Registry nameio.github.timescale/pg-aiguide

Install

Overview

Description from the maker (original English)

Comprehensive PostgreSQL documentation and best practices, including ecosystem tools

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Computer or cloud
Transport: stdio, Streamable HTTP
Category: Databases & datasets
You need to fill in: OPENAI_API_KEY, PGHOST, PGPORT, PGUSER, PGPASSWORD, PGDATABASE, DB_SCHEMA

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
You fill in yourself: OPENAI_API_KEY, PGHOST, PGPORT, PGUSER, PGPASSWORD, PGDATABASE, DB_SCHEMA

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Runs in the cloudNothing to install; it connects over the internet
npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://mcp.tigerdata.com/docs

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "pg-aiguide": {
      "command": "npx",
      "args": [
        "-y",
        "@tigerdata/pg-aiguide"
      ],
      "env": {
        "OPENAI_API_KEY": "your-value",
        "PGHOST": "your-value",
        "PGPORT": "your-value",
        "PGUSER": "your-value",
        "PGPASSWORD": "your-value",
        "PGDATABASE": "your-value",
        "DB_SCHEMA": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http pg-aiguide https://mcp.tigerdata.com/docs

Or run it on your computer

claude mcp add pg-aiguide --env OPENAI_API_KEY=your-value --env PGHOST=your-value --env PGPORT=your-value --env PGUSER=your-value --env PGPASSWORD=your-value --env PGDATABASE=your-value --env DB_SCHEMA=your-value -- npx -y @tigerdata/pg-aiguide

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "pg-aiguide": {
      "url": "https://mcp.tigerdata.com/docs"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "pg-aiguide": {
      "command": "npx",
      "args": [
        "-y",
        "@tigerdata/pg-aiguide"
      ],
      "env": {
        "OPENAI_API_KEY": "your-value",
        "PGHOST": "your-value",
        "PGPORT": "your-value",
        "PGUSER": "your-value",
        "PGPASSWORD": "your-value",
        "PGDATABASE": "your-value",
        "DB_SCHEMA": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "pg-aiguide": {
      "type": "http",
      "url": "https://mcp.tigerdata.com/docs"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "pg-aiguide": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@tigerdata/pg-aiguide"
      ],
      "env": {
        "OPENAI_API_KEY": "your-value",
        "PGHOST": "your-value",
        "PGPORT": "your-value",
        "PGUSER": "your-value",
        "PGPASSWORD": "your-value",
        "PGDATABASE": "your-value",
        "DB_SCHEMA": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://mcp.tigerdata.com/docs

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

OPENAI_API_KEY secret required env
Your API key for text embeddings via OpenAI
PGHOST secret required env
PostgreSQL host to connect to
PGPORT secret required env
PostgreSQL port to connect to
PGUSER secret required env
PostgreSQL user to connect as
PGPASSWORD secret required env
PostgreSQL password to connect with
PGDATABASE secret required env
PostgreSQL database to connect to
DB_SCHEMA secret env
PostgreSQL database schema to use

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account timescale, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Databases & datasetsi

More stars than 0% of the other 954 servers in this category
Published to the registry more recently than 31% of the other 954 servers in this category
Basic checks equal to or better than 100% of the other 954 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Pg Aiguide safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: OPENAI_API_KEY, PGHOST, PGPORT, PGUSER, PGPASSWORD, PGDATABASE, DB_SCHEMA

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.6.1) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Supabase, MongoDB MCP Server, Elasticsearch MCP Server

Alternatives

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

pg-aiguide

AI-optimized PostgreSQL expertise for coding assistants

pg-aiguide helps AI coding tools write dramatically better PostgreSQL code. It provides:

Semantic search across the official PostgreSQL manual (version-aware)
AI-optimized “skills” — curated, opinionated Postgres best practices used automatically by AI agents
Extension ecosystem docs, starting with TimescaleDB, with more coming soon

Use it as:

Agent Skills via npx skills — works with Claude Code, Cursor, Codex, Gemini CLI, and 40+ other agents
a public MCP server that can be used with any AI coding agent, or
a Claude Code plugin optimized for use with Claude's native skill support.

⭐ Why pg-aiguide?

AI coding tools often generate Postgres code that is:

outdated
missing constraints and indexes
unaware of modern PG features
inconsistent with real-world best practices

pg-aiguide fixes that by giving AI agents deep, versioned PostgreSQL knowledge and proven patterns.

See the difference

https://github.com/user-attachments/assets/5a426381-09b5-4635-9050-f55422253a3d

Video Transcript

Prompt given to Claude Code:

Please describe the schema you would create for an e-commerce website two times, first with the tiger mcp server disabled, then with the tiger mcp server enabled. For each time, write the schema to its own file in the current working directory. Then compare the two files and let me know which approach generated the better schema, using both qualitative and quantitative reasons. For this example, only use standard Postgres.

Result (summarized):

4× more constraints
55% more indexes (including partial/expression indexes)
PG17-recommended patterns
Modern features (GENERATED ALWAYS AS IDENTITY, NULLS NOT DISTINCT)
Cleaner naming & documentation

Conclusion: _pg-aiguide produces more robust, performant, maintainable schemas._

🚀 Quickstart

Agent Skills

Install curated PostgreSQL best-practice skills for your AI coding agent:

npx skills add timescale/pg-aiguide --skill postgres

Or install the schema exploration skill to investigate an existing PostgreSQL database:

npx skills add timescale/pg-aiguide --skill schema-exploration

Or pick individual skills interactively:

npx skills add timescale/pg-aiguide

Works with Claude Code, Cursor, Codex, Gemini CLI, VS Code, and 40+ other agents.

For even deeper PostgreSQL knowledge, also add the MCP server to give your agent semantic search over the official PostgreSQL, TimescaleDB, and PostGIS manuals.

MCP Server

For semantic search over PostgreSQL, TimescaleDB, and PostGIS documentation, add the public MCP server:

https://mcp.tigerdata.com/docs

Manual MCP configuration using JSON

"mcpServers": { "pg-aiguide": { "url": "https://mcp.tigerdata.com/docs" } } }

Or it can be used as a Claude Code Plugin:

claude plugin marketplace add timescale/pg-aiguide

claude plugin install pg@aiguide

Install by environment

Claude Code

This repo serves as a claude code marketplace plugin. To install, run:

claude plugin marketplace add timescale/pg-aiguide

claude plugin install pg@aiguide

This plugin uses the skills available in the skills directory as well as our publicly available MCP server endpoint hosted by TigerData for searching PostgreSQL documentation.

Codex

Run the following to add the MCP server to codex:

codex mcp add --url "https://mcp.tigerdata.com/docs" pg-aiguide

Cursor

One-click install:

Or add the following to .cursor/mcp.json

"mcpServers": { "pg-aiguide": { "url": "https://mcp.tigerdata.com/docs" } } }

Gemini CLI

Run the following to add the MCP server to Gemini CLI:

gemini mcp add -s user pg-aiguide "https://mcp.tigerdata.com/docs" -t http

OpenCode

Add the following to your global OpenCode config file (~/.config/opencode/opencode.json), or to a project level opencode.json. See the OpenCode config docs for more about file locations, and the MCP server docs for more about the mcp options.

"$schema": "https://opencode.ai/config.json", "mcp": { "pg-aiguide": { "type": "remote", "url": "https://mcp.tigerdata.com/docs" } } }

Add use pg-aiguide to your prompts to use the pg-aiguide tools.

Visual Studio

Click the button to install:

VS Code

Click the button to install:

Alternatively, run the following to add the MCP server to VS Code:

code --add-mcp '{"name":"pg-aiguide","type":"http","url":"https://mcp.tigerdata.com/docs"}'

VS Code Insiders

Click the button to install:

Alternatively, run the following to add the MCP server to VS Code Insiders:

code-insiders --add-mcp '{"name":"pg-aiguide","type":"http","url":"https://mcp.tigerdata.com/docs"}'

Windsurf

Add the following to ~/.codeium/windsurf/mcp_config.json

"mcpServers": { "pg-aiguide": { "serverUrl": "https://mcp.tigerdata.com/docs" } } }

💡 Your First Prompt

Once installed, pg-aiguide can answer Postgres questions or design schemas.

Simple schema example prompt

Create a Postgres table schema for storing usernames and unique email addresses.

Complex schema example prompt

You are a senior software engineer. You are given a task to generate a Postgres schema for an IoT device company.

The devices collect environmental data on a factory floor. The data includes temperature, humidity, pressure, as

the main data points as well as other measurements that vary from device to device. Each device has a unique id

and a human-readable name. We want to record the time the data was collected as well. Analysis for recent data

includes finding outliers and anomalies based on measurements, as well as analyzing the data of particular devices for ad-hoc analysis. Historical data analysis includes analyzing the history of data for one device or getting statistics for all devices over long periods of time.

Features

Documentation Search (MCP Tools)

`search_docs` Unified search tool supporting semantic (vector similarity) and keyword (BM25) search across multiple documentation sources:
postgres - Official PostgreSQL manual, scoped by version
tiger - Tiger Data's documentation (TimescaleDB and ecosystem)
postgis - PostGIS spatial extension documentation

Skills (AI-Optimized Best Practices)

[`view_skill`](API.md#view_skill) Exposes curated, opinionated PostgreSQL best-practice skills used automatically by AI coding assistants.

These skills provide guidance on:

Exploring existing PostgreSQL schemas and objects
Schema design
Indexing strategies
Data types
Data integrity and constraints
Naming conventions
Performance tuning
Modern PostgreSQL features

🔌 Ecosystem Documentation

Supported today:

TimescaleDB (docs + skills)
PostGIS (docs)

Coming soon:

pgvector

We welcome contributions for additional extensions and tools.

🛠 Development

See DEVELOPMENT.md for:

running the MCP server locally
adding new skills
adding new docs

🤝 Contributing

We welcome:

new Postgres best-practice skills
additional documentation corpora
search quality improvements
bug reports and feature ideas

📄 License

Apache 2.0

Pg Aiguide

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Or run it on your computer

Or run it on your computer

Or run it on your computer

Or run it on your computer

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Databases & datasetsi

Common questions

Alternatives

Supabase

MongoDB MCP Server

Elasticsearch MCP Server

README from the maker

pg-aiguide

⭐ Why pg-aiguide?

See the difference

🚀 Quickstart

Agent Skills

MCP Server

Install by environment

💡 Your First Prompt

Features

Documentation Search (MCP Tools)

Skills (AI-Optimized Best Practices)

🔌 Ecosystem Documentation

🛠 Development

🤝 Contributing

📄 License