diff --git a/src/core/Api.ts b/src/core/Api.ts
new file mode 100644
index 00000000..b7353789
--- /dev/null
+++ b/src/core/Api.ts
@@ -0,0 +1,37 @@
+import { ErrorLike, JsonPlayObject, PlayState } from "./Atomic.js"
+
+export type PlayApiCommon = {
+    uid: string
+    componentId: number
+    state: PlayState
+    play: JsonPlayObject
+    compacted: boolean
+    playedAt: string
+    seentAt: string
+    updatedAt: string
+    parentUid?: string
+    // TODO add parent source type/name?
+}
+
+export type PlayInputApi = {
+    id: number
+    data: object
+    play: JsonPlayObject
+    createdAt: string
+}
+
+export type QueueStateApi = {
+    id: number
+    queueName: string
+    queueState: string
+    retries: number
+    error?: ErrorLike
+    createdAt: string
+    updatedAt: string
+}
+
+export type PlayApiCommonDetailed = PlayApiCommon & {
+    error: ErrorLike
+    input: PlayInputApi
+    queueStates: QueueStateApi[]
+}
\ No newline at end of file