diff --git a/cmd/examples/main.go b/cmd/examples/main.go
index 91d92c9..2e6dc04 100644
--- a/cmd/examples/main.go
+++ b/cmd/examples/main.go
@@ -57,7 +57,7 @@ func main() {
 	// Example: Get track by ID (if we have results)
 	if len(tracks) > 0 {
 		fmt.Println("\n--- Getting track details ---")
-		track, err := client.GetTrack(ctx, tracks[0].ID)
+		track, err := client.GetTrack(ctx, string(tracks[0].ID))
 		if err != nil {
 			log.Printf("Get track failed: %v", err)
 		} else {
diff --git a/internal/models/album.go b/internal/models/album.go
index f16d4be..328df8e 100644
--- a/internal/models/album.go
+++ b/internal/models/album.go
@@ -8,20 +8,20 @@ import (
 // Album represents a full album from the Yandex Music API.
 type Album struct {
 	BaseModel
-	ID          string     `json:"id"`
-	Title       string     `json:"title"`
-	CoverURI    string     `json:"cover_uri"`
-	Genre       string     `json:"genre"`
-	Year        int        `json:"year"`
-	TrackCount  int        `json:"track_count"`
-	Available   bool       `json:"available"`
-	ReleaseDate string     `json:"release_date"`
-	Artists     []Artist   `json:"artists"`
-	Labels      []Label    `json:"labels"`
-	Volumes     [][]Track  `json:"volumes"`
-	Description string     `json:"description"`
-	Meta        *AlbumMeta `json:"meta"`
-	Best        *Best      `json:"best"`
+	ID          JSONID      `json:"id"`
+	Title       string      `json:"title"`
+	CoverURI    string      `json:"cover_uri"`
+	Genre       string      `json:"genre"`
+	Year        int         `json:"year"`
+	TrackCount  int         `json:"track_count"`
+	Available   bool        `json:"available"`
+	ReleaseDate string      `json:"release_date"`
+	Artists     []Artist    `json:"artists"`
+	Labels      []Label     `json:"labels"`
+	Volumes     [][]Track   `json:"volumes"`
+	Description string      `json:"description"`
+	Meta        *AlbumMeta  `json:"meta"`
+	Best        *Best       `json:"best"`
 	// Additional fields
 	Region                       string          `json:"region"`
 	AvailableForPremiumUsers     bool            `json:"available_for_premium_users"`
@@ -226,8 +226,8 @@ type Best struct {
 type TrailerInfo struct {
 	BaseModel
 	PreviewURI string `json:"preview_uri"`
-	TrackID    string `json:"track_id"`
-	AlbumID    string `json:"album_id"`
+	TrackID    JSONID `json:"track_id"`
+	AlbumID    JSONID `json:"album_id"`
 	Duration   int    `json:"duration"`
 }
 
diff --git a/internal/models/base.go b/internal/models/base.go
index d5cb68d..daf3f96 100644
--- a/internal/models/base.go
+++ b/internal/models/base.go
@@ -4,6 +4,8 @@ package models
 
 import (
 	"encoding/json"
+	"fmt"
+	"strconv"
 
 	"gitea.mrixs.me/Mrixs/yandex-music-api-go/internal/utils"
 )
@@ -81,3 +83,30 @@ func (b *BaseModel) SetClient(c ClientInterface) {
 func (b *BaseModel) GetClient() ClientInterface {
 	return b.Client
 }
+
+// JSONID is an ID that can be represented as either a JSON string or a JSON number.
+// The Yandex Music API sometimes returns IDs as numbers (e.g., 12345) and sometimes
+// as strings (e.g., "12345"). JSONID accepts both and stores the value as a string.
+type JSONID string
+
+// UnmarshalJSON implements json.Unmarshaler, accepting both JSON strings and numbers.
+func (id *JSONID) UnmarshalJSON(data []byte) error {
+	// Try string first
+	var s string
+	if err := json.Unmarshal(data, &s); err == nil {
+		*id = JSONID(s)
+		return nil
+	}
+	// Try number (float64 is the default JSON number decoding)
+	var f float64
+	if err := json.Unmarshal(data, &f); err != nil {
+		return fmt.Errorf("cannot unmarshal %v into JSONID: %w", string(data), err)
+	}
+	*id = JSONID(strconv.FormatFloat(f, 'f', -1, 64))
+	return nil
+}
+
+// String returns the ID as a Go string.
+func (id JSONID) String() string {
+	return string(id)
+}
diff --git a/internal/models/track.go b/internal/models/track.go
index 0b02ef1..1490ff8 100644
--- a/internal/models/track.go
+++ b/internal/models/track.go
@@ -8,7 +8,7 @@ import (
 // Track represents a full track from the Yandex Music API.
 type Track struct {
 	BaseModel
-	ID                       string           `json:"id"`
+	ID                       JSONID           `json:"id"`
 	Title                    string           `json:"title"`
 	DurationMs               int              `json:"duration_ms"`
 	StorageID                string           `json:"storage_id"`
@@ -149,14 +149,14 @@ func (t *Track) GetDownloadInfo(quality string) *DownloadInfo {
 
 // Major represents major label info for a track.
 type Major struct {
-	ID          string `json:"id"`
+	ID          JSONID `json:"id"`
 	Name        string `json:"name"`
 	Description string `json:"description"`
 }
 
 // TrackLyricsInfo represents minimal lyrics info for a track.
 type TrackLyricsInfo struct {
-	ID        string `json:"id"`
+	ID        JSONID `json:"id"`
 	Text      string `json:"text"`
 	Major     *Major `json:"major"`
 	Available bool   `json:"available"`