Validate a standalone flow definition

curl -X POST https://api.runtype.com/v1/public/products/validate/flow \
     -H "Content-Type: application/json" \
     -d '{
  "description": "Generates an assistant response from the latest user message",
  "name": "My Flow",
  "steps": [
    {
      "config": {
        "model": "claude-sonnet-4-5",
        "systemPrompt": "You are a helpful assistant.",
        "userPrompt": "{{userMessage}}"
      },
      "name": "Generate Response",
      "type": "prompt"
    }
  ]
}'

{
  "errors": [
    {
      "code": "string",
      "message": "string",
      "path": "string",
      "severity": "string"
    }
  ],
  "recommendations": [
    {
      "code": "string",
      "message": "string",
      "path": "string",
      "severity": "string"
    }
  ],
  "valid": true,
  "warnings": [
    {
      "code": "string",
      "message": "string",
      "path": "string",
      "severity": "string"
    }
  ]
}

Validates a flow definition in isolation, without requiring a full product object.

Request

This endpoint expects an object.

Response

Validation result

errorslist of objects

recommendationslist of objects

validboolean

warningslist of objects

Errors

400

Bad Request Error

500

Internal Server Error