> ## Documentation Index
> Fetch the complete documentation index at: https://docs.stackone.com/llms.txt
> Use this file to discover all available pages before exploring further.

# n8n - Connect StackOne

> Use the StackOne MCP server to connect your work systems to n8n.

StackOne is in n8n's built-in list of MCP servers, so an n8n AI Agent can use it after you sign in, with no URL to enter. On n8n versions without that list, add it with the MCP Client Tool node instead.

## Before you start

* A StackOne [project](https://docs.stackone.com/gateway/concepts/organizations-and-projects.md) you are a member of.
* A [connector profile](https://docs.stackone.com/connect/managing-connectors/connector-profiles.md) in the project for each provider the client should reach, with the actions you want exposed enabled.
* (Optional) A [linked account](https://docs.stackone.com/connect/managing-connectors/linking-accounts.md) for each provider. Accounts can also be linked during the consent flow.

## Connect StackOne

> [tab] From the MCP servers list
>
> **1. Add StackOne to an agent**
>
> 1. In a workflow, add an **AI Agent** node.
> 2. On the agent, click **Tool +**. In n8n's agent builder, click **Add Tool** instead.
> 3. Search for `StackOne`, or open the **MCP Servers** section, and select **StackOne**.
>
> If StackOne isn't listed, your n8n version doesn't have the MCP servers list. Use the **With the MCP Client Tool** tab.
>
> **2. Sign in and authorize**
>
> n8n opens the StackOne sign-in and saves the result as an MCP credential.
>
> 1. Sign in to StackOne. In a desktop app or code editor, this opens in your browser.
> 2. If StackOne asks for a project, pick yours and click **Continue to Accounts**.
> 3. Pick the work systems n8n can use (your Linked Accounts).
> 4. If you see **Load tools when needed**, leave it on.
> 5. Click **Authorize**.
>
> ![StackOne's Select accounts screen with two Linked Accounts ticked, Load tools when needed on, and the Authorize button](https://mintcdn.com/stackone-60/RgaE_4ZxFuvAQ6gS/images/ai-platforms/oauth-consent-select-accounts.png?fit=max\&auto=format\&n=RgaE_4ZxFuvAQ6gS\&q=85\&s=66ef4eb4d8bf6e5246e5f01ec959c187)
>
> **3. Choose the tools**
>
> Under **Tools to include**, pick all of StackOne's tools, a selected list, or all except a selected list.

> [tab] With the MCP Client Tool
>
> **1. Add the MCP Client Tool**
>
> 1. In a workflow, add an **AI Agent** node.
> 2. Under its tools, click **+** and search for **MCP Client Tool**.
> 3. Set **URL** to `https://mcp.stackone.com/mcp`.
> 4. Set the transport to **HTTP Streamable**. StackOne does not serve SSE, so an SSE endpoint will not connect.
>
> **2. Sign in and authorize**
>
> Set **Authentication** to **OAuth2**, then complete the sign-in in the browser. n8n stores the result as a reusable credential.
>
> 1. Sign in to StackOne. In a desktop app or code editor, this opens in your browser.
> 2. If StackOne asks for a project, pick yours and click **Continue to Accounts**.
> 3. Pick the work systems n8n can use (your Linked Accounts).
> 4. If you see **Load tools when needed**, leave it on.
> 5. Click **Authorize**.
>
> ![StackOne's Select accounts screen with two Linked Accounts ticked, Load tools when needed on, and the Authorize button](https://mintcdn.com/stackone-60/RgaE_4ZxFuvAQ6gS/images/ai-platforms/oauth-consent-select-accounts.png?fit=max\&auto=format\&n=RgaE_4ZxFuvAQ6gS\&q=85\&s=66ef4eb4d8bf6e5246e5f01ec959c187)
>
> If your n8n version doesn't offer OAuth2 on this node, use a token app URL instead. See [token apps](https://docs.stackone.com/ai-platforms/mcp-server.md#client-setup-token-apps).
>
> **3. Test the connection**
>
> Click **Execute Step** to check the connection and see the available tools, then pick what the workflow needs from **Tools to include**.

> [!NOTE]
>
> An OAuth grant belongs to the person who approved it, and n8n workflows usually run unattended long after that. A token app URL is often the better fit for a scheduled workflow, since it carries its own credential and doesn't depend on one person's grant.

> [accordion] Add or change accounts
>
> n8n reaches only the Linked Accounts you approved when you connected. To add one you link later, or one someone shares with you afterwards:
>
> **1. Open Connected Apps**
>
> In the StackOne dashboard, go to [**Connected Apps**](https://app.stackone.com/connected_apps).
>
> **2. Edit the connection**
>
> 1. Open the **⋮** menu on the row for n8n and select **Edit tool access**.
> 2. Select the Linked Account.
> 3. Click **Save changes**.
>
> To review or revoke the connection, use the same **⋮** menu in **Connected Apps**.


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