---
title: "Validate workflow"
description: "Validate a workflow structure without saving it. Checks for:\n- Valid node connections and port compatibility\n- Required configuration fields\n- Circular dependencies\n- Orphaned nodes\n- Missing required inputs\n"
source: https://flowdrop.io/docs/api/validation/validateWorkflow
site: FlowDrop documentation
---
# Validate workflow
`POST /workflows/validate`

Validate a workflow structure without saving it. Checks for:
- Valid node connections and port compatibility
- Required configuration fields
- Circular dependencies
- Orphaned nodes
- Missing required inputs

## Request body

- `application/json` — Workflow

## Responses

- `200` — Validation results (`application/json`: ValidationResponse)
- `400` — Bad request - invalid parameters or request body (`application/json`: ErrorResponse)
- `500` — Internal server error (`application/json`: ErrorResponse)

*Tags: Validation*