Permanently delete one earlier version and its stored content, for example to purge a leaked value from history before retention removes it. The current version returns 409; revert to another version first. A version that does not exist returns 404.
OAuth scope: api:write.
DELETE
/api/v2/files/{fileId}/versions/{version}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
fileId*string
File identifier.
Match
^[A-Za-z0-9_-]+$Length
1 <= length <= 128version*integer
Version number.
Range
0 < value <= 2147483647Query Parameters
workspaceId*string
Workspace that owns the file.
Length
1 <= length <= 128Response Body
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
curl -X DELETE "https://www.sim.ai/api/v2/files/string/versions/1?workspaceId=string" \ -H "X-API-Key: YOUR_API_KEY"{
"data": {
"fileId": "wf_V1StGXR8z5jdHi6BmyT91",
"version": 2,
"deleted": true
}
}{
"error": {
"code": "BAD_REQUEST",
"message": "Invalid request"
}
}{
"error": {
"code": "UNAUTHORIZED",
"message": "Authentication required"
}
}{
"error": {
"code": "FORBIDDEN",
"message": "Insufficient workspace permissions",
"details": {
"code": "INSUFFICIENT_WORKSPACE_ROLE"
}
}
}{
"error": {
"code": "NOT_FOUND",
"message": "Not found"
}
}{
"error": {
"code": "CONFLICT",
"message": "The request conflicts with the current resource state"
}
}{
"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"
}
}