Connect the tools.

Create a Personal Access Token and give it access to only the bases it needs.

Connect an Airtable button to n8n without exposing your live link.

Create the app, choose permissions, test a token, and plan how it will stay valid.

Build a small read-only request, choose fields, and follow pagination safely.

Enable the Gmail API, create a Google OAuth client, and connect one mailbox to n8n.

Create a project, configure consent, choose scopes, and connect an OAuth client.

Make a Gemini API key, save it in n8n, and test it.

Create a Slack app, give it only the scopes it needs, add it to a channel, and connect OAuth.

Connect Slack’s Events API to an n8n webhook, acknowledge events quickly, and verify that requests really came from Slack.

Create the OAuth connection and test one file upload.

Clean private account details out of an n8n file before sharing it.

Create an n8n API key, connect the n8n node, and limit the risk when a workflow reads or updates another workflow.

See how one app gets safe, limited access to another.