Connect AI apps
Use your CommSync inbox from Claude, ChatGPT, Codex, Cursor, VS Code, n8n, and any MCP app. Paste one URL, sign in, and choose the lines the app can use.
CommSync has its own MCP server. An AI app that speaks the Model Context Protocol can read your conversations, find contacts, and send SMS and email for you. Examples are Claude, ChatGPT, Codex, Cursor, VS Code, and n8n.
You connect an app with OAuth. You paste one URL into the app, sign in to CommSync, and approve the app on one screen. You do not copy a secret, and you can disconnect the app at any time.
Where to start
Open Settings → Connect AI apps in CommSync. The page shows your server URL and a short guide for each app.
Your server URL
Every app uses the same URL: the /api/mcp route on your CommSync API origin.
For CommSync cloud, that is:
https://server.commsync.ai/api/mcpSettings → Connect AI apps shows the URL for your workspace, with a copy button.
New to CommSync?
You can start in the AI app. CommSync reads your email and texts for the app, so you connect a line before you approve. When the app opens CommSync and you have no account yet, one visit does all of it:
- Select Create an account, and enter your name, email address, and password.
- Enter the 6-digit code from the email. You can also use the button in the email.
- The screen shows Connect a line first. Select Connect a line.
- Choose Just me or a team, then add a card. Your workspace starts a free 7-day trial of Power. The card is charged only when the trial ends.
- Connect an email address or a phone number.
- CommSync takes you back to the consent screen. Select Allow access.
- CommSync sends you straight back to the app.
CommSync keeps the request open for up to 2 hours while you set up. A line that you connect later reaches the app with no new sign-in.
If someone invited you to a team, the Connect a line first screen shows the invite. Select Accept to work in that team. If the team already gave you a line, the screen shows Allow access at once.
Connect an app
Works in claude.ai, Claude Desktop, and the Claude mobile apps.
- In Claude, open Settings → Connectors.
- Choose Add custom connector. Name it CommSync and paste your server URL.
- Select Connect. Claude opens CommSync. Sign in and allow access.
On Claude Team and Enterprise, an owner adds the connector one time. Each person then connects their own CommSync account.
The consent screen
Before an app gets access, CommSync shows you one screen. Read it before you select Allow access.
| On the screen | What it tells you |
|---|---|
| The app | The name of the app, and the address where CommSync sends you back. |
| Verified | A green pill. It appears only when CommSync can prove the app, for example Claude on claude.ai. |
| The app tile | The mark of a brand that CommSync proved. n8n Cloud also gets the n8n mark, because only n8n runs app.n8n.cloud. It gets no Verified pill: the address shows whose workspace it is, so check it. Any other app gets the first letter of its name. |
| App on this device | A desktop app such as Cursor, Codex, or Claude Code. CommSync cannot verify its name. Continue only if you just added CommSync to that app. |
| Your account | The CommSync account and workspace that the app gets. Select Switch to use a different account. |
| It will be able to | Read conversations, send messages, and organize your inbox, with the permissions of your role. The app never sees your password. |
| Channel access | Every line that you can access, and the lines that you connect later. On a wide screen the line list is already open. On a phone, select Change to limit the app to specific lines. |
An account with no line sees Connect a line first in place of this screen. It has no Allow access button, because the app would have nothing to read. Select Connect a line. After you connect the line, CommSync brings you back here.
Did you start this?
Select Cancel if you did not add CommSync to an app a moment ago. A sign-in request that you did not start can come from someone who wants access to your inbox.
If the app sends a sign-in request that CommSync cannot use, the screen shows an error and stops there. CommSync does not send you back to the app. Go back to the app and connect again.
A sign-in request works for 30 minutes, or for up to 2 hours while you connect your first line. If it runs out, the screen shows Request expired and one button, Return to the app. The app then lets you select Connect again. You are already signed in, so the next try takes one tap. CommSync cannot start a new request by itself, because only the app holds the secret that completes it.
After Cancel, CommSync takes you back to a verified app by itself. For any other app, the screen shows the address, and you choose whether to follow the link.
Manage connected apps
Under Settings, in Connect AI apps, you see every app that you allowed. Each row shows the app, when it last called CommSync, and the lines it can use.
Click a row to open the settings of that app:
- Channel access sets the lines. The next request uses the change, and the app stays signed in.
- Security details sets how much of your account security mail the app reads. See Security details.
- Disconnect, at the bottom, stops the app at once on every device. Connect it from the app to use it again.
Click Save to apply your changes. Right-click a row to edit or disconnect it.
Security
- The app never receives your password or an API key.
- The access token of the app lasts one hour, and the app renews it in the background.
- A renewal token changes at each use. If an old copy appears later, CommSync signs out that connection.
- CommSync stores only a hash of each code and token.
- A lead who acts as a teammate cannot connect or disconnect apps for that teammate. Neither can CommSync support.
For the protocol details, see MCP server → Authentication.