Connect common.ink to your AI tools

Add persistent memory and live deployment capabilities in minutes.

Before you start

1. A common.ink account — Sign up or Sign in

All clients below use OAuth — no API key needed. You can optionally create an API key for scripts or custom integrations.

ChatGPT

Requires a paid ChatGPT plan (Plus, Pro, Team, or Enterprise). No API key needed — ChatGPT uses OAuth to connect.

Open ChatGPT at chat.openai.com
Click your profile icon (bottom-left)
Go to Settings > Connectors
Enable Developer Mode (under Advanced settings)
Click "Create" to add a new connector

Fill in the connector details:

Name	`common.ink`
Description	`Persistent memory and live apps for your AI workflows`
Connector URL	`https://common.ink/mcp`

Set Authentication to "OAuth"
Click Create — you'll be redirected to common.ink to log in and authorize access

Then in any conversation, click "+" > "More" to select common.ink from your connectors.

Claude Web (claude.ai)

Requires a Claude Pro, Max, Team, or Enterprise plan. No API key needed — Claude uses OAuth to connect.

Open claude.ai and click your profile icon, then Settings
Click Connectors in the left sidebar
Scroll down and click "Add custom connector"
Enter the MCP server URL:
```
https://common.ink/mcp
```
Click "Add" — Claude will discover the OAuth endpoints automatically
You'll be redirected to common.ink to log in and authorize access
Back in Claude, click "+" in the chat composer, then "Connectors" to enable it

More details: Getting started with custom connectors using remote MCP

Claude Code (CLI)

No API key needed — Claude Code supports OAuth natively.

Run one command:

claude mcp add --transport http commonink https://common.ink/mcp

Then type /mcp to authenticate. Claude Code will open a browser window for you to log in and authorize access.

Example session:

$ claude mcp add --transport http commonink https://common.ink/mcp
Added HTTP MCP server commonink with URL: https://common.ink/mcp

$ claude
> /mcp
Authentication successful. Connected to commonink.

> show me my notes
# Claude lists your notes via the note_list tool

Claude Desktop App

No API key needed — Claude Desktop uses mcp-remote which handles OAuth automatically.

Open Claude Desktop
Click the Claude menu in your menu bar (macOS) or system tray (Windows)
Go to Settings > Developer
Click "Edit Config" to open claude_desktop_config.json

Add this configuration:

{
  "mcpServers": {
    "common-ink": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://common.ink/mcp"]
    }
  }
}

Restart Claude Desktop completely (quit and relaunch)
A browser window will open for you to log in and authorize access
Look for the MCP tools icon in the bottom-right of the input box

Config file locations:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json

Other MCP Clients

For any MCP-compatible client, use these connection details:

MCP Endpoint	`https://common.ink/mcp`
Transport	Streamable HTTP
Authentication	OAuth 2.1 with PKCE (auto-discovered) or Bearer token (API key)
OAuth Discovery	`https://common.ink/.well-known/oauth-protected-resource`

Clients that support OAuth 2.1 (like ChatGPT and Claude) will auto-discover endpoints and handle authentication. For clients that don't support OAuth, use an API key as a Bearer token.