diff --git a/src/api/MysaApiClient.ts b/src/api/MysaApiClient.ts
index a6bede8..cd11631 100644
--- a/src/api/MysaApiClient.ts
+++ b/src/api/MysaApiClient.ts
@@ -6,7 +6,7 @@ import { ChangeDeviceState } from '@/types/mqtt/in/ChangeDeviceState';
 import { InMessageType } from '@/types/mqtt/in/InMessageType';
 import { StartPublishingDeviceStatus } from '@/types/mqtt/in/StartPublishingDeviceStatus';
 import { OutMessageType } from '@/types/mqtt/out/OutMessageType';
-import { Devices, Firmwares } from '@/types/rest';
+import { Devices, DeviceStates, Firmwares } from '@/types/rest';
 import { fromCognitoIdentityPool } from '@aws-sdk/credential-providers';
 import {
   AuthenticationDetails,
@@ -213,6 +213,24 @@ export class MysaApiClient {
     return response.json();
   }
 
+  async getDeviceStates(): Promise<DeviceStates> {
+    this._logger.debug(`Fetching device states...`);
+
+    const session = await this.getFreshSession();
+
+    const response = await this._fetcher(`${MysaApiBaseUrl}/devices/state`, {
+      headers: {
+        Authorization: `${session.getIdToken().getJwtToken()}`
+      }
+    });
+
+    if (!response.ok) {
+      throw new MysaApiError(response);
+    }
+
+    return response.json();
+  }
+
   async setDeviceState(deviceId: string, setPoint?: number, mode?: MysaDeviceMode) {
     this._logger.debug(`Setting device state for '${deviceId}'`);
 
diff --git a/src/types/rest/Firmwares.ts b/src/types/rest/Firmwares.ts
index 7e649ac..c5dda13 100644
--- a/src/types/rest/Firmwares.ts
+++ b/src/types/rest/Firmwares.ts
@@ -1,8 +1,17 @@
+/** Device firmware information */
 export interface FirmwareDevice {
+  /** Device ID */
   Device: string;
+  /** Device firmware version */
   InstalledVersion: string;
 }
 
+/**
+ * Collection of firmware devices indexed by device ID
+ *
+ * Maps device ID strings to their corresponding firmware device objects, providing a lookup table for all devices
+ * associated with a user account.
+ */
 export interface Firmwares {
   Firmware: Record<string, FirmwareDevice>;
 }
diff --git a/src/types/rest/States.ts b/src/types/rest/States.ts
new file mode 100644
index 0000000..337d5b4
--- /dev/null
+++ b/src/types/rest/States.ts
@@ -0,0 +1,69 @@
+/** Represents a timestamped value with metadata */
+export interface TimestampedValue<T = number> {
+  /** Timestamp when the value was recorded */
+  t: number;
+  /** The actual value */
+  v: T;
+}
+
+/** Represents the state of a single device */
+export interface DeviceState {
+  /** Device identifier */
+  Device: string;
+  /** Overall timestamp for the device state */
+  Timestamp: number;
+  /** Time the device has been on */
+  OnTime: TimestampedValue<number>;
+  /** Temperature set point */
+  SetPoint: TimestampedValue<number>;
+  /** Display brightness level */
+  Brightness: TimestampedValue<number>;
+  /** Schedule mode setting */
+  ScheduleMode: TimestampedValue<number>;
+  /** Hold time setting */
+  HoldTime: TimestampedValue<number>;
+  /** Wi-Fi signal strength */
+  Rssi: TimestampedValue<number>;
+  /** Thermostat mode */
+  TstatMode: TimestampedValue<number>;
+  /** Available heap memory */
+  FreeHeap: TimestampedValue<number>;
+  /** Sensor temperature reading */
+  SensorTemp: TimestampedValue<number>;
+  /** Current mode */
+  Mode: TimestampedValue<number>;
+  /** Voltage measurement */
+  Voltage: TimestampedValue<number>;
+  /** Temperature corrected for calibration */
+  CorrectedTemp: TimestampedValue<number>;
+  /** Duty cycle percentage */
+  Duty: TimestampedValue<number>;
+  /** Heat sink temperature */
+  HeatSink: TimestampedValue<number>;
+  /** Time the device has been off */
+  OffTime: TimestampedValue<number>;
+  /** Connection status */
+  Connected: TimestampedValue<boolean>;
+  /** Current consumption */
+  Current: TimestampedValue<number>;
+  /** Humidity reading */
+  Humidity: TimestampedValue<number>;
+  /** Lock status */
+  Lock: TimestampedValue<number>;
+}
+
+/**
+ * Collection of device states indexed by device ID
+ *
+ * Maps device ID strings to their corresponding device state objects, providing a lookup table for all devices
+ * associated with a user account.
+ */
+export interface DeviceStatesObj {
+  /** Device state objects indexed by their unique device ID strings */
+  [deviceId: string]: DeviceState;
+}
+
+/** Top-level interface for the device states REST API response. */
+export interface DeviceStates {
+  DeviceStatesObj: DeviceStatesObj;
+}
diff --git a/src/types/rest/index.ts b/src/types/rest/index.ts
index efa93be..23a4e1d 100644
--- a/src/types/rest/index.ts
+++ b/src/types/rest/index.ts
@@ -1,2 +1,3 @@
 export * from './Devices';
 export * from './Firmwares';
+export * from './States';