Integrating with APIs and Apps

When you want to automate tasks across different services, n8n provides a wide range of integration nodes to help you connect and interact with popular apps and APIs. These nodes allow you to automate everything from sending emails to managing tasks or posting messages. Here’s a categorized list of some of the most commonly used integration nodes in n8n:

Communication:

• Gmail;
• Slack;
• Microsoft Outlook;
• Twilio;
• Telegram.

Productivity & Project Management:

• Trello;
• Asana;
• Jira;
• Notion;
• Google Sheets.

Storage & File Management:

• Dropbox;
• Google Drive;
• OneDrive;
• Box.

CRM & Marketing:

• HubSpot;
• Salesforce;
• Mailchimp;
• ActiveCampaign.

Developer Tools:

• GitHub;
• GitLab;
• Bitbucket;
• HTTP Request (for custom APIs).

These nodes make it easy to connect your workflows with the tools you already use, handling the details of authentication and API communication for you.

To connect n8n with an external service, you usually need to authenticate using one of the supported methods. Here’s a step-by-step example of integrating with the Trello API using an API key, followed by an OAuth2 example for the Gmail node.

Connecting to Trello with an API Key:

1. Open your n8n workflow editor and add a new Trello node;
2. Click on the Credentials dropdown in the node’s settings and select Create New;
3. Enter your Trello API key and token, which you can obtain from your Trello account settings;
4. Save the credentials. The Trello node is now ready to use in your workflow.

Connecting to Gmail with OAuth2:

1. Add a Gmail node to your workflow;
2. In the node’s settings, click Credentials and choose Create New;
3. Provide the required OAuth2 details, such as Client ID and Client Secret, which you get from your Google Cloud Console;
4. Authorize n8n to access your Gmail account by following the OAuth2 consent flow;
5. Save the credentials and test the node to ensure it’s connected.

These steps are similar for most integration nodes—just choose the right authentication method and supply your credentials in a secure way.