Shipeasy
Flags experimentsApiOperations

List universes

Returns a single page of universes ordered by created_at desc, id desc. The universes table has no updated_at, so this list is keyed on creation time.

Returns a single page of universes ordered by created_at desc, id desc. The universes table has no updated_at, so this list is keyed on creation time.

Use case

Snapshot every universe in the project — for example to audit which unit_type and holdout_range are in use before launching a new experiment.

GET
/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

Query Parameters

limit?integer

Page size (1–500). Defaults to 100.

Default100
Range1 <= value <= 500
cursor?string

Opaque cursor returned in the previous page's next_cursor. Omit for the first page.

q?string

Case-insensitive substring filter across the resource's human-readable text columns (e.g. name, title, description). OR-matched across those columns; omit to return everything.

Lengthlength <= 100

Header Parameters

X-Project-Id?string

Project the request operates on. Optional — defaults to the project the SDK key belongs to; pass it only to scope a multi-project key (the generated client sets it once from its configuration, so per-call callers never thread it).

Response Body

application/json

application/json

application/json

application/json

application/json

application/json

application/json

curl -X GET "https://shipeasy.ai/api/admin/universes"
{
  "data": [
    {
      "id": "uni_01j7w8a1b2c3d4e5f6g7h8i9j0",
      "name": "primary_users",
      "unitType": "user_id",
      "holdoutRange": [
        9500,
        9999
      ],
      "createdAt": "2026-04-12T10:14:08.000Z"
    }
  ],
  "next_cursor": null
}
{
  "error": "Malformed request (bad JSON, missing project scope).",
  "code": "BAD_REQUEST"
}
{
  "error": "Missing or invalid admin SDK key.",
  "code": "UNAUTHORIZED"
}

{
  "error": "Key is valid but not allowed to act on this project.",
  "code": "FORBIDDEN"
}

{
  "error": "The resource does not exist or is not visible to the caller.",
  "code": "NOT_FOUND"
}

{
  "error": "A resource with this name already exists in the project.",
  "code": "ALREADY_EXISTS"
}

{
  "error": "The request body failed structural (schema) validation.",
  "code": "VALIDATION"
}

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