n8n
n8n API Key Variable Scopes Tutorial: Least-Privilege Keys for Instance Variables
Give an n8n API key only the variable scopes it needs: create a scoped key, test variable list and create calls with curl, and fix 403 scope errors fast.
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n8n
n8n External Secrets Tutorial: Connect HashiCorp Vault and AWS Secrets Manager
Connect n8n to external secret stores with hands-on HashiCorp Vault and AWS Secrets Manager walkthroughs, $secrets expressions, and per-project vault scoping.