Connect the KlickTipp App MCP

The KlickTipp MCP server exposes newsletters, contacts, tags, custom fields, opt-in processes, and other supported KlickTipp capabilities as tools for compatible MCP clients. It is the connection layer used both by direct MCP connections and by the KlickTipp plugin for Claude and Codex. The plugin additionally includes KlickTipp skills that guide the assistant in choosing and using these tools correctly.

The KlickTipp App MCP server is available at:

https://mcp.klicktipp.com/mcp

The server uses OAuth for authentication. You do not need an API key, a local server executable, or a .env file.

This article covers the server itself: connecting to it directly with any MCP-capable client, what it can currently do, and its safety behavior. If you want the packaged experience for Claude or Codex — with skills included — see Install the KlickTipp plugin for Claude and Codex instead.

The documented tool catalog is available in the KlickTipp MCP Server Tool Reference. After connecting, the tool list returned by the server is authoritative for the tools currently available to your account and client.

• A KlickTipp Premium, Deluxe, or Enterprise subscription with access to the MCP server.
• Permission to sign in to the KlickTipp account you want to use.
• A client that supports remote MCP servers and OAuth 2.0.
  • Claude: A Claude account in which custom Connectors are available and permission to install custom Connectors. Claude Pro license requiered.
  • ChatGPT: A ChatGPT account in which Plugins are available and permission to install plugins. ChatGPT Plus license for personal use with Codex, or ChatGPT Business license for managed workspace use with Codex and the Cloud Application requiered.
  • Client-specific account and administrator requirements are explained below.

Note: If you're thinking about using KlickTipp and just want an overview of the features our MCP server offers, we provided an overview of all currently available tools in this documentation.

MCP tools operate in the KlickTipp account connected through OAuth. Read-only operations may run without a confirmation prompt. Confirmation behavior for write operations depends on the individual tool and the MCP client.

1. A real newsletter dispatch always requires separate human confirmation inside KlickTipp.
2. Some irreversible operations are available through MCP, including deleting tags, custom fields, or opt-in processes.
3. Some actions that change subscription states or can trigger automations require an explicit approval input.
4. Other write operations rely on the client’s confirmation behavior and the warnings in the tool description.

Always review the connected account, affected objects, and tool warnings before approving a write operation.

Use these instructions when you want to interact with KlickTipp directly through an AI assistant or agent application.

This creates a direct MCP connection without the KlickTipp skills. If your client supports the full plugin, we recommend installing the KlickTipp plugin for Claude and Codex instead.

This section describes the direct MCP-only connection for personal Claude accounts. This includes adding a custom remote connector.

1. Open Customize > Connectors.
2. Select Add, then Add custom connector.
3. Enter KlickTipp as the connector name.
4. Enter the following server URL:

  https://mcp.klicktipp.com/mcp

5. Continue with the OAuth settings detected by Claude.
6. Select Add.
7. Select Connect and sign in to your KlickTipp account.

This creates a direct MCP connection without the KlickTipp skills. Use it only if you intentionally want the raw MCP server or cannot use the KlickTipp plugin.

If you already use Claude Code:

1. Start a new Claude Code session.
2. Send the installation prompt provided below.

   Please connect the KlickTipp MCP server:
   https://mcp.klicktipp.com/mcp

   Use OAuth authentication, guide me through the KlickTipp sign-in, and verify that the KlickTipp tools are available after the connection is complete.

6. Log in with your KlickTipp username and password if you aren't already logged in.
7. Review the access request, select → Allow, and then return to Claude.
8. Open a new chat before using the MCP Server.

If you have a personal ChatGPT account, use Codex in the ChatGPT desktop app:

1. Download the ChatGPT desktop app.
2. Open the app and sign in with your ChatGPT account.
3. Select Codex.
4. Start a new local chat.
5. Send the installation prompt provided below:

   Please connect the KlickTipp MCP server:
   https://mcp.klicktipp.com/mcp

   Use OAuth authentication, guide me through the KlickTipp sign-in, and verify that the KlickTipp tools are available after the connection is complete.

6. Log in with your KlickTipp username and password if you aren't already logged in.
7. Review the access request, select → Allow, and then return to ChatGPT.
8. Open a new chat before using the MCP Server.

You do not need to use the terminal or install the Codex CLI.

Full MCP support in ChatGPT is available for Business, Enterprise, and Education workspaces. An administrator, owner, or appropriately authorized role must configure and publish the KlickTipp MCP server as a custom app.

1. Enable Developer Mode for the authorized account.
2. Open Workspace settings > Plugins > Add > Create MCP Plugin.
3. Enter the KlickTipp MCP server endpoint:

  https://mcp.klicktipp.com/mcp

4. Select OAuth as the authentication method.
5. Select Create and complete the KlickTipp sign-in when prompted.
6. Review the detected tools and select Create.
7. Open the new draft under Workspace settings > Plugins, if you aren't redirected immediately.
8. Review its actions, permissions, and workspace access.
9. Approve and activate the Plugin for your workspace.

After publication, each member enables the KlickTipp app and connects their own KlickTipp account under Plugins in the corresponding Workspace tab.

Use this setup to connect Cursor to the KlickTipp MCP server. The connection uses OAuth 2.0 with PKCE. You do not need a client secret.

1. Open the Cursor App.
2. Select Customize in the sidebar.
3. Open the MCPs section.
4. Select New MCP Server.
5. If your mcp.json already contains other servers, add only the klicktipp entry inside the existing mcpServers object.
6. Add this configuration into mcp.json:

{
  "mcpServers": {
    "klicktipp": {
      "url": "https://mcp.klicktipp.com/mcp",
      "auth": {
        "CLIENT_ID": "mcp-klicktipp-cursor",
        "scopes": ["api", "offline_access"]
      }
    }
  }
}

6. Save mcp.json.
7. Return to Customize → MCPs.
8. Find klicktipp.
9. Select Connect.
10. Sign in with your KlickTipp account in the browser.
11. Approve the requested access.
12. Return to Cursor.
13. Cursor now shows the KlickTipp MCP server as connected.
14. Open a new chat before using the MCP Server.

Use this setup to connect OpenCode to the KlickTipp MCP server. The connection uses OAuth 2.0 with PKCE. You do not need a client secret.

1. Open the OpenCode configuration file:

   ~/.config/opencode/opencode.json

2. Create the file if it does not exist.

3. Add the following configuration. Preserve all existing settings.

   {
     "$schema": "https://opencode.ai/config.json",
     "mcp": {
       "klicktipp": {
         "type": "remote",
         "url": "https://mcp.klicktipp.com/mcp",
         "enabled": true,
         "oauth": {
           "clientId": "mcp-klicktipp-desktop",
           "scope": "api offline_access"
         }
       }
     }
   }

4. Do not add a clientSecret or an Authorization header.

5. Save the configuration file.

6. Start the OAuth connection:

   opencode mcp auth klicktipp

7. Sign in with your KlickTipp account in the browser.

8. Review the access request and approve it.

9. Restart OpenCode.

10. Confirm that the connection is active:

    opencode mcp list

11. Confirm that klicktipp is shown as connected.

Use this setup to connect OpenClaw to the KlickTipp MCP server through the OpenClaw App. The connection uses OAuth 2.0 with PKCE. You do not need a client secret.

1. Open the OpenClaw App.

2. Open Settings.

3. Select MCP.

4. Expand MCP Servers.

5. Under Configured servers, select Add server.

6. Set following fields:

   Setting	Value
   Name	KlickTipp
   Transport	streamable-http
   Url	https://mcp.klicktipp.com/mcp

7. Click Add server.

8. Scroll down to MCP (Model Context Protocol server definitions).

9. Under Custom entries, find the KlickTipp Entry.

10. Set the following fields:

    Setting	Value
    Args	Leave empty
    MCP Server Auth	oauth
    Command	Leave empty
    Cwd	Leave empty
    MCP Server Enabled	On
    Transport	streamable-http
    Url	https://mcp.klicktipp.com/mcp

11. Scroll down to Advanced Settings.

12. Expand MCP OAuth and set these values:

    Setting	Value
    Identity	shared
    Auth Profile ID	Leave empty
    Scope	api offline_access
    Redirect URL	Leave empty
    MCP OAuth Client Metadata URL	https://mcp.klicktipp.com/.well-known/oauth-client/desktop.json

13. Wait until OpenClaw confirms that the settings are saved. If your version displays Save or Save & Publish, select that action.

14. Scroll up again and find the KlickTipp server in the MCP settings.

15. Select Sign in.

16. Sign in with your KlickTipp account in the browser.

17. Approve the requested access.

18. Return to OpenClaw.

19. The MCP settings should show the KlickTipp connection as Connected.

20. Open a new chat before using the MCP Server.

Langdock supports up to 60 tools per MCP integration. Because the main KlickTipp MCP server exposes more tools, connect the KlickTipp domain-specific servers you need as separate integrations.

1. Open Integrations in Langdock and select Add Integration.

2. Select Start from scratch, then Connect remote MCP.

3. Enter one of the domain-specific KlickTipp MCP server URLs.

4. Enter a meaningful name for the integration.

5. Configure the connection with the following values:

   Field	Value
   Transport	STREAMABLE_HTTP
   Authentication	OAuth 2.0 Manual
   OAuth flow	Authorization Code with PKCE
   Client ID	mcp-klicktipp-langdock
   Client Secret	Leave empty
   Authorization URL	https://auth.klicktipp.com/realms/klicktipp/protocol/openid-connect/auth
   Token URL	https://auth.klicktipp.com/realms/klicktipp/protocol/openid-connect/token
   Scopes	api offline_access
   Send resource parameter	Enabled

6. Save your setting and Select Connect, sign in to KlickTipp, and approve access.

7. Test the connection, select the available tools, and save the integration.

8. Repeat these steps for every additional KlickTipp server you need.

Do not select OAuth 2.0 with Dynamic Client Registration. KlickTipp does not allow dynamic client registration for Langdock. Leaving the client secret empty is intentional because the connection uses a public OAuth client secured with PKCE.

If the token request fails, disable Send resource parameter and repeat the authorization.

See Advanced: Use domain-specific servers for the available server URLs and their functional areas.

Use this setup to connect DeutschlandGPT to the KlickTipp MCP server. The connection uses OAuth 2.0 with PKCE. You do not need a client secret.

1. Open Settings > Integrations in DeutschlandGPT.
2. Select Create MCP server.
3. Select Add your own server.
4. Enter KlickTipp as the name.
5. Enter the KlickTipp MCP server URL:
   https://mcp.klicktipp.com/mcp

6. Adjust the further settings and enter the following values:

   Field	Value
   Authentication	OAuth
   Transport	HTTP
   OAuth-Scopes	api offline_access
   Client ID	mcp-klicktipp-deutschlandgpt
   Client Secret	Leave empty

7. Save the MCP server.
8. Select Connect.
9. Sign in to the KlickTipp account you want to use.
10. Review the access request and approve it.
11. Return to DeutschlandGPT and confirm that the KlickTipp tools are available.
12. Open a new chat before using the MCP Server.

1. Sign in to the Abacus.AI application.

2. Open Profile > MCP Server.

3. Select Add MCP Server, then use the guided form.

4. Configure the connection with the following values:

   Field	Value
   MCP Server Name	KlickTipp
   Server URL	https://mcp.klicktipp.com/mcp
   Use Your Own OAuth App	Enabled
   Client ID	mcp-klicktipp-abacus
   Client Secret	Leave empty
   Scopes	api offline_access

5. Save the MCP server configuration.

6. Select Connect, sign in to KlickTipp, and approve access.

7. Open the Abacus AI Agent and ask it to show the available KlickTipp tools.

Use this setup if your local MCP client or script is not listed above. The client must support remote MCP servers and OAuth 2.0 Authorization Code with PKCE.

This setup is intended for local, interactive applications. The application must be able to open a browser for the KlickTipp sign-in and receive the OAuth callback through 127.0.0.1 or localhost.

1. Add a new remote MCP server to your client.

2. Select Streamable HTTP as the transport if your client requires a transport setting.

3. Enter the KlickTipp MCP server URL:

   https://mcp.klicktipp.com/mcp

4. Select OAuth 2.0 as the authentication method.

5. Allow the client to detect the OAuth configuration automatically.

6. If your client requires manual OAuth settings, use the following values:

   Setting	Value
   OAuth flow	Authorization Code with PKCE
   Client ID	mcp-klicktipp-desktop
   Client Secret	Leave empty
   Authorization URL	https://auth.klicktipp.com/realms/klicktipp/protocol/openid-connect/auth
   Token URL	https://auth.klicktipp.com/realms/klicktipp/protocol/openid-connect/token
   Scopes	api offline_access
   Dynamic Client Registration	Off

7. Use the local redirect URI generated by your client. The redirect URI must use one of these loopback hosts:

   http://127.0.0.1
   http://localhost

8. Start the connection.

9. Sign in with your KlickTipp account in the browser.

10. Review the access request and approve it.

11. Return to your MCP client.

12. Confirm that the KlickTipp tools are available.

Do not use Dynamic Client Registration. Do not add a client secret or an Authorization header.

Use these instructions when you want to use KlickTipp tools inside an automated workflow, project, or business process.

Use this setup to connect the MCP server node in n8n Cloud to the KlickTipp MCP server. The connection uses OAuth 2.0 with PKCE. You do not need a client secret.

1. Add a MCP Client node to your n8n workflow and enter:

   Setting	Value
   Server Transport	HTTP Streamable
   Endpoint	https://mcp.klicktipp.com/mcp
   Authentication	MCP OAuth2

2. Click on Connect to.

3. Configure the Credentials with following settings:

   Setting	Value
   Use Dynamic Client Registration	Off
   Grant Type	PKCE
   Authorization URL	https://auth.klicktipp.com/realms/klicktipp/protocol/openid-connect/auth
   Access Token URL	https://auth.klicktipp.com/realms/klicktipp/protocol/openid-connect/token
   Client ID	n8n-cloud
   Client Secret	add any character
   Scope	api offline_access
   Auth URI Query Parameters	Leave empty
   Authentication	Header
   Resource URL	Leave empty

4. Click on Save.

5. Scroll up and click on Connect.

6. Sign in to KlickTipp and approve access.

7. Save the credential.

8. Select it in the MCP Client Tool.

9. Confirm that n8n loads the available KlickTipp tools.

Use this setup to connect the KlickTipp MCP server to ClickUp. The connection uses OAuth 2.0 with PKCE. You do not need a client secret.

You must use the ClickUp browser app. Workspace owners and admins can create a connection for all Workspace members. Members can create a personal connection if an administrator has enabled the required permission.

1. Select your Workspace avatar and then select Apps.

2. Select Add Custom MCP in the App Center sidebar.

3. Choose the connection type:

   1. Select For all members to create a Workspace connection. This option requires Workspace owner or admin permissions.
   2. Select Just for me to create a personal connection.

4. Select Next.

5. Enter the following server information:

   Setting	Value
   Name	KlickTipp
   MCP server URL	https://mcp.klicktipp.com/mcp
   Authentication	OAuth

6. Open the advanced OAuth configuration.

7. Enter the following OAuth settings:

   Setting	Value
   Client ID	mcp-klicktipp-clickup
   Client Secret	Leave empty
   Scopes	api offline_access

8. Save or start the connection.

9. Sign in with your KlickTipp account in the browser.

10. Review the access request and approve it.

11. Return to ClickUp.

12. Confirm that ClickUp lists the available KlickTipp tools in the connection's AI Tools section.

13. Add the tools you need to a Super Agent or use them with ClickUp Brain.

For most users, the main KlickTipp MCP server is the recommended and simplest option:

https://mcp.klicktipp.com/mcp

Some MCP clients or integration providers limit the number of tools they can load from a single server. In this case, you can connect one or more domain-specific KlickTipp servers instead.

You can also use the individual servers if you intentionally want to expose only selected functional areas to your MCP client.

All endpoints use the base URL https://mcp.klicktipp.com/mcp and KlickTipp-managed OAuth 2.0 authentication.

Each individual server must be added to your MCP client as a separate integration. Complete the OAuth sign-in for every server you add. All servers use the same KlickTipp login and authorization scope.

Working with email content

To edit emails for newsletters, follow-up campaigns, or automations, also connect the email-editor and email-content servers.

The OAuth login has not completed for this MCP connection.

• In Claude, open Customize > Connectors, select KlickTipp, and repeat the connection process.
• In a managed ChatGPT workspace, open Settings > Apps, select KlickTipp, and reconnect your account.
• In Claude Code or Codex, start a new session and send:

Please reconnect the KlickTipp MCP server:
https://mcp.klicktipp.com/mcp

Restart the OAuth sign-in and verify that the KlickTipp tools are available after authentication.

If authentication still fails, confirm that you are signing in to the intended KlickTipp account and that the account includes MCP access.

This can mean that the client is using an outdated tool list, that the tool name has changed, or that the tool is not available in the current production rollout.

Start a new session and ask the client to refresh the KlickTipp MCP tools. Then check the KlickTipp MCP Server Tool Reference. If the tool is still missing, do not assume that it is available for the connected account.

Confirm that you authenticated with the intended KlickTipp account and that it has permission to access the requested account or sub-account.

• MCP Server Tools
• Official KlickTipp agent plugin repository
• Install the KlickTipp plugin for Claude and Codex
• Landing Page: Control KlickTipp with your AI agent simply by voice
• Knowledge Base: Control KlickTipp with AI: MCP for Claude, ChatGPT, and Others