curl --request POST \
  --url https://api.gravixlayer.com/v1/vectors/{index_id}/delete \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "vector_ids": [
    "vec-001",
    "vec-002",
    "vec-003"
  ]
}'

{
  "deleted": 3,
  "failed": []
}