List workflows on the n8n instance. Returns id, name, active state, tags and dates. Supports cursor pagination.

Get a full workflow by ID, including nodes, connections and settings.

Create a new workflow (created inactive; use activate_workflow to enable it). 'nodes' and 'connections' are JSON in n8n's standard export format.

Replace an existing workflow (PUT). Pass the full workflow JSON (typically the result of get_workflow with modifications); read-only fields (id, active, tags, dates) are stripped automatically.

Activate a workflow (starts running on its triggers).

Deactivate a workflow (stops responding to its triggers).

Permanently delete a workflow. ⚠️ Irreversible — confirm with the user before using.

List workflow executions. Useful for debugging: filter by status ('error', 'success', 'waiting') or by workflowId.

Get the details of an execution. With includeData=true it returns per-node data (can be very large) — ideal for diagnosing errors.

Delete an execution record. ⚠️ Irreversible.

List the tags available on the n8n instance.

Verify that the n8n instance responds and the API key is valid.