claude-memory/graph/insights/insight-n8n-test-workflow-api-cannot-trigger-schedule-based-22d124.md

id	type	title	tags	importance	confidence	created	updated	relations
22d124fd-34e9-4538-acef-9962642a0e54	insight	Insight: n8n test_workflow API cannot trigger schedule-based workflows	n8n mcp api limitation	0.5	0.8	2026-02-20T04:17:05.893034+00:00	2026-03-01T15:58:51.839215+00:00	target type direction strength edge_id c3070599-c723-4993-bada-3103e6f03e53 RELATED_TO incoming 0.77 0e0bbad1-952b-413b-ade8-9e9cd58d4465 target type direction strength edge_id de4a3c65-6eb5-4f73-ad69-685dba0a7847 RELATED_TO incoming 0.83 e3349a77-3b63-4acd-a4cd-ae3a61882888

n8n API Limitation: Schedule Triggers Not Testable via API

Observation

The n8n MCP n8n_test_workflow tool (and the underlying n8n API) only works with externally-triggerable workflows. Supported trigger types:

• Webhook
• Form
• Chat

Limitation

Schedule-triggered workflows (e.g., cron, interval) cannot be executed on-demand via the API or MCP tools.

Workarounds

• Wait for the next scheduled run
• Manually test the SSH command chain outside n8n
• Temporarily add a webhook trigger node to test, then remove it
• Use the n8n UI "Execute Workflow" button (manual run from the editor)