Get an immutable deployment version and its pinned workflow graph snapshot.
GET
/api/v2/workflows/{id}/versions/{version}Authorization
apiKey X-API-Key<token>
Your Sim API key, personal or workspace-scoped. Generate one under Settings, then API Keys. Operations that reject workspace keys say so in their own description.
In: header
Path Parameters
id*string
Unique workflow identifier.
Length
1 <= lengthversion*integer
Numeric deployment version.
Range
0 < value <= 2147483647Response Body
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
curl -X GET "https://www.sim.ai/api/v2/workflows/string/versions/3" \ -H "X-API-Key: YOUR_API_KEY"{
"data": {
"id": "version_3",
"version": 3,
"name": "Escalation routing",
"description": "Adds the priority escalation branch.",
"isActive": true,
"createdAt": "2026-06-12T10:30:00.000Z",
"state": {
"blocks": {},
"edges": []
}
}
}{
"error": {
"code": "BAD_REQUEST",
"message": "Invalid request"
}
}{
"error": {
"code": "UNAUTHORIZED",
"message": "API key required"
}
}{
"error": {
"code": "FORBIDDEN",
"message": "Insufficient workspace permissions",
"details": {
"code": "INSUFFICIENT_WORKSPACE_ROLE"
}
}
}{
"error": {
"code": "NOT_FOUND",
"message": "Not found"
}
}{
"error": {
"code": "RATE_LIMITED",
"message": "API rate limit exceeded",
"details": {
"retryAfter": "2026-01-01T00:00:30.000Z"
}
}
}{
"error": {
"code": "INTERNAL_ERROR",
"message": "Internal server error"
}
}{
"error": {
"code": "SERVICE_UNAVAILABLE",
"message": "Service temporarily unavailable"
}
}