Endpoint
PUT https://workflows.eachlabs.run/api/v1/workflows/{workflowID}/versions/{versionID}
- Create or update the version
- Generate or update the state machine
- Set this version as the latest version
Once a version is locked, it cannot be modified.
Path Parameters
| Parameter | Type | Required | Description |
|---|
workflowID | string | Yes | Workflow UUID or slug |
versionID | string | Yes | Version identifier (e.g., v1, v2) |
Request Body
| Field | Type | Required | Description |
|---|
version_id | string | Yes | Version identifier (must match path) |
definition | object | Yes | Complete workflow definition |
locked | boolean | No | Lock this version (default: false) |
production | boolean | No | Mark as production (default: false) |
allowed_to_share | boolean | No | Make unlisted (true) or private (false) |
Code Examples
curl -X PUT https://workflows.eachlabs.run/api/v1/workflows/WF_ID/versions/v2 \
-H "Content-Type: application/json" \
-H "X-API-Key: YOUR_API_KEY" \
-d '{
"version_id": "v2",
"definition": {
"version": "v2",
"input_schema": {
"type": "object",
"required": ["prompt"],
"properties": {
"prompt": {"type": "string"}
}
},
"steps": [
{
"step_id": "generate_text",
"type": "model",
"model": "openai-chatgpt-5",
"params": {
"user_prompt": "{{inputs.prompt}}"
}
},
{
"step_id": "generate_image",
"type": "model",
"model": "flux-dev",
"params": {
"prompt": "{{generate_text.output}}"
},
"fallback": {
"enabled": true,
"model": "flux-1-1-pro",
"params": {
"prompt": "{{generate_text.output}}"
}
}
}
]
},
"production": true
}'
Response
{
"version_id": "v2",
"slug": "text-to-image-generator",
"locked": false,
"production": true,
"allowed_to_share": false,
"trigger_count": 0,
"status": "active",
"created_at": "2025-12-05T14:20:00Z",
"updated_at": "2025-12-05T14:20:00Z",
"definition": { ... }
}
Error Responses
| Status | Body | Description |
|---|
400 | {"error": "definition is required"} | Missing definition |
401 | {"error": "Invalid or missing API key"} | Auth failure |
403 | {"error": "version is locked"} | Cannot modify a locked version |
404 | {"error": "workflow not found"} | Invalid workflow ID |
