Galaxy MCP Server

Live MCP server for the Galaxy vault. Lets Claude (mobile/web) and other chat interfaces query your Obsidian vault in real time via GitHub.

Setup — do this once

Step 1: Create a private GitHub repo for the vault

1. Go to github.com → New repository

2. Name it galaxy-vault, set it to Private

3. Do NOT initialize with README

Step 2: Install Obsidian Git and push the vault

1. In Obsidian: Settings → Community Plugins → Browse → search "Obsidian Git" → Install → Enable

2. Open the Obsidian Git settings:

   • Auto pull interval: 5 (minutes)

   • Auto push interval: 5 (minutes)

   • Commit message: vault: auto-sync {{date}}

3. Run command palette → "Obsidian Git: Initialize a new repo"

4. Run command palette → "Obsidian Git: Open source control view"

5. Stage all → Commit → set remote to your new private repo URL → Push

After this, every edit to the vault auto-pushes to GitHub within 5 minutes.

Step 3: Create a GitHub Personal Access Token

1. github.com → Settings → Developer Settings → Personal access tokens → Fine-grained tokens

2. Name: galaxy-mcp

3. Repository access: select galaxy-vault only

4. Permissions: Contents → Read-only

5. Copy the token

Step 4: Deploy to Railway

1. Go to railway.app → New Project → Deploy from GitHub repo → select this galaxy-mcp repo

2. Add environment variables (Settings → Variables):

GITHUB_TOKEN=   (the token from step 3)
GITHUB_OWNER=   (your GitHub username)
GITHUB_REPO=    galaxy-vault
API_KEYS=       (two random keys, comma-separated — run `openssl rand -hex 32` twice)

3. Railway will auto-deploy. Copy your public URL (e.g. https://galaxy-mcp-production.up.railway.app)

Related MCP server: obsidian-codex-mcp

Connecting to Claude.ai (mobile + web)

1. Open claude.ai → Settings → Integrations → Add MCP Server

2. URL: https://your-railway-url.up.railway.app/mcp

3. Auth: Bearer token → paste Priya's API key

4. For Vinod: repeat with his API key

Connecting to ChatGPT (Custom GPT)

ChatGPT doesn't speak MCP natively. Add it as a Custom Action:

1. Create a Custom GPT → Configure → Add Action

2. Import schema from: https://your-railway-url.up.railway.app/openapi.json

3. Auth: API Key → Bearer → paste API key

(The server serves an OpenAPI schema automatically at /openapi.json)

Available tools