Shipeasy
Flags experimentsApiOperations

Create a universe

Creates a new universe. Only name is required — unit_type defaults to user_id and holdout_range defaults to null (no holdout).

Returns 409 if name already exists in the project. Returns 403 if you supply holdout_range on a plan below Pro.

Use cases
  • Default universe — { "name": "primary_users" }. Per-user randomisation, no holdout.
  • Reserved holdout — supply holdout_range to carve out a measurement slice excluded from all experiments.
  • Account-level — unit_type: 'account_id' so multi-seat accounts see one consistent variant.
POST
/api/admin/universes

Authorization

bearerSdkKey
AuthorizationBearer <token>

Pass an admin SDK key as Authorization: Bearer sdk_admin_…. Mint via POST /api/admin/keys with type: "admin".

In: header

Header Parameters

X-Project-Id*string

Project the request operates on. Must match the project the SDK key belongs to.

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

Response Body

application/json

application/json

application/json

application/json

application/json

application/json

application/json

curl -X POST "https://shipeasy.ai/api/admin/universes" \  -H "X-Project-Id: string" \  -H "Content-Type: application/json" \  -d '{    "name": "primary_users"  }'
{
  "id": "uni_01j7w8a1b2c3d4e5f6g7h8i9j0",
  "name": "primary_users"
}
{
  "error": "string",
  "code": "string",
  "detail": "string"
}
{
  "error": "string",
  "code": "string",
  "detail": "string"
}
{
  "error": "string",
  "code": "string",
  "detail": "string"
}
{
  "error": "string",
  "code": "string",
  "detail": "string"
}
{
  "error": "string",
  "code": "string",
  "detail": "string"
}
{
  "error": "string",
  "code": "string",
  "detail": "string"
}