diff --git a/achievement.go b/achievement.go
index ca6458a..ef840f7 100644
--- a/achievement.go
+++ b/achievement.go
@@ -12,6 +12,7 @@ import (
 func (c *Client) GetAchievementUnlocks(params models.GetAchievementUnlocksParameters) (*models.GetAchievementUnlocks, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetAchievementUnlocks.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.A(params.AchievementID),
diff --git a/comment.go b/comment.go
index c69962b..7c80456 100644
--- a/comment.go
+++ b/comment.go
@@ -13,6 +13,7 @@ import (
 func (c *Client) GetComments(params models.GetCommentsParameters) (*models.GetComments, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetComments.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.T(params.Type.GetCommentsType()),
diff --git a/event.go b/event.go
index 45283b6..ec9fc3b 100644
--- a/event.go
+++ b/event.go
@@ -12,6 +12,7 @@ import (
 func (c *Client) GetAchievementOfTheWeek(params models.GetAchievementOfTheWeekParameters) (*models.GetAchievementOfTheWeek, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetAchievementOfTheWeek.php"),
 		raHttp.APIToken(c.Secret),
 	)
diff --git a/feed.go b/feed.go
index 80f8913..070de4d 100644
--- a/feed.go
+++ b/feed.go
@@ -14,6 +14,7 @@ import (
 func (c *Client) GetRecentGameAwards(params models.GetRecentGameAwardsParameters) (*models.GetRecentGameAwards, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetRecentGameAwards.php"),
 		raHttp.APIToken(c.Secret),
 	}
@@ -64,6 +65,7 @@ func (c *Client) GetRecentGameAwards(params models.GetRecentGameAwardsParameters
 func (c *Client) GetActiveClaims(params models.GetActiveClaimsParameters) ([]models.GetActiveClaims, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetActiveClaims.php"),
 		raHttp.APIToken(c.Secret),
 	)
@@ -81,6 +83,7 @@ func (c *Client) GetActiveClaims(params models.GetActiveClaimsParameters) ([]mod
 func (c *Client) GetClaims(params models.GetClaimsParameters) ([]models.GetClaims, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetClaims.php"),
 		raHttp.APIToken(c.Secret),
 	}
@@ -104,6 +107,7 @@ func (c *Client) GetClaims(params models.GetClaimsParameters) ([]models.GetClaim
 func (c *Client) GetTopTenUsers(params models.GetTopTenUsersParameters) ([]models.GetTopTenUsers, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetTopTenUsers.php"),
 		raHttp.APIToken(c.Secret),
 	)
diff --git a/game.go b/game.go
index 8bec116..ec34c91 100644
--- a/game.go
+++ b/game.go
@@ -13,6 +13,7 @@ import (
 func (c *Client) GetGame(params models.GetGameParameters) (*models.GetGame, error) {
 	resp, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetGame.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.I([]string{strconv.Itoa(params.GameID)}),
@@ -31,6 +32,7 @@ func (c *Client) GetGame(params models.GetGameParameters) (*models.GetGame, erro
 func (c *Client) GetGameExtended(params models.GetGameExtentedParameters) (*models.GetGameExtented, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetGameExtended.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.I([]string{strconv.Itoa(params.GameID)}),
@@ -57,6 +59,7 @@ func (c *Client) GetGameExtended(params models.GetGameExtentedParameters) (*mode
 func (c *Client) GetGameHashes(params models.GetGameHashesParameters) (*models.GetGameHashes, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetGameHashes.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.I([]string{strconv.Itoa(params.GameID)}),
@@ -75,6 +78,7 @@ func (c *Client) GetGameHashes(params models.GetGameHashesParameters) (*models.G
 func (c *Client) GetAchievementCount(params models.GetAchievementCountParameters) (*models.GetAchievementCount, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetAchievementCount.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.I([]string{strconv.Itoa(params.GameID)}),
@@ -93,6 +97,7 @@ func (c *Client) GetAchievementCount(params models.GetAchievementCountParameters
 func (c *Client) GetAchievementDistribution(params models.GetAchievementDistributionParameters) (*models.GetAchievementDistribution, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetAchievementDistribution.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.I([]string{strconv.Itoa(params.GameID)}),
@@ -126,6 +131,7 @@ func (c *Client) GetAchievementDistribution(params models.GetAchievementDistribu
 func (c *Client) GetGameRankAndScore(params models.GetGameRankAndScoreParameters) ([]models.GetGameRankAndScore, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetGameRankAndScore.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.G(params.GameID),
diff --git a/http/request.go b/http/request.go
index c3679f6..294feb1 100644
--- a/http/request.go
+++ b/http/request.go
@@ -53,9 +53,9 @@ func BearerToken(token string) RequestDetail {
 }
 
 // UserAgent adds an User-Agent header with the package version
-func UserAgent() RequestDetail {
+func UserAgent(userAgent string) RequestDetail {
 	return requestDetailFn(func(r *Request) {
-		r.Headers["User-Agent"] = "go-retroachievements/v0.0.0"
+		r.Headers["User-Agent"] = userAgent
 	})
 }
 
diff --git a/http/request_test.go b/http/request_test.go
index fc2d417..6cd8f3c 100644
--- a/http/request_test.go
+++ b/http/request_test.go
@@ -18,7 +18,7 @@ func TestNewRequest(t *testing.T) {
 		"http://localhost",
 		raHttp.Path("/api/v1/some_resource"),
 		raHttp.Method(http.MethodPost),
-		raHttp.UserAgent(),
+		raHttp.UserAgent("go-retroachievements/v0.0.0"),
 		raHttp.APIToken("secret_token"),
 		raHttp.BearerToken("secret_bearer"),
 		raHttp.U("myUsername"),
diff --git a/leaderboards.go b/leaderboards.go
index c012db0..028867f 100644
--- a/leaderboards.go
+++ b/leaderboards.go
@@ -13,6 +13,7 @@ import (
 func (c *Client) GetGameLeaderboards(params models.GetGameLeaderboardsParameters) (*models.GetGameLeaderboards, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetGameLeaderboards.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.I([]string{strconv.Itoa(params.GameID)}),
@@ -38,6 +39,7 @@ func (c *Client) GetGameLeaderboards(params models.GetGameLeaderboardsParameters
 func (c *Client) GetLeaderboardEntries(params models.GetLeaderboardEntriesParameters) (*models.GetLeaderboardEntries, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetLeaderboardEntries.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.I([]string{strconv.Itoa(params.LeaderboardID)}),
diff --git a/system.go b/system.go
index 4db2941..6f8edc3 100644
--- a/system.go
+++ b/system.go
@@ -13,6 +13,7 @@ import (
 func (c *Client) GetConsoleIDs(params models.GetConsoleIDsParameters) ([]models.GetConsoleIDs, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetConsoleIDs.php"),
 		raHttp.APIToken(c.Secret),
 	}
@@ -45,6 +46,7 @@ func (c *Client) GetConsoleIDs(params models.GetConsoleIDsParameters) ([]models.
 func (c *Client) GetGameList(params models.GetGameListParameters) ([]models.GetGameList, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetGameList.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.I([]string{strconv.Itoa(params.SystemID)}),
diff --git a/ticket.go b/ticket.go
index 10b5c5e..450519e 100644
--- a/ticket.go
+++ b/ticket.go
@@ -13,6 +13,7 @@ import (
 func (c *Client) GetTicketByID(params models.GetTicketByIDParameters) (*models.GetTicketByID, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetTicketData.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.I([]string{
@@ -33,6 +34,7 @@ func (c *Client) GetTicketByID(params models.GetTicketByIDParameters) (*models.G
 func (c *Client) GetMostTicketedGames(params models.GetMostTicketedGamesParameters) (*models.GetMostTicketedGames, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetTicketData.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.F(1),
@@ -58,6 +60,7 @@ func (c *Client) GetMostTicketedGames(params models.GetMostTicketedGamesParamete
 func (c *Client) GetMostRecentTickets(params models.GetMostRecentTicketsParameters) (*models.GetMostRecentTickets, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetTicketData.php"),
 		raHttp.APIToken(c.Secret),
 	}
@@ -82,6 +85,7 @@ func (c *Client) GetMostRecentTickets(params models.GetMostRecentTicketsParamete
 func (c *Client) GetGameTicketStats(params models.GetGameTicketStatsParameters) (*models.GetGameTicketStats, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetTicketData.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.G(params.GameID),
@@ -107,6 +111,7 @@ func (c *Client) GetGameTicketStats(params models.GetGameTicketStatsParameters)
 func (c *Client) GetDeveloperTicketStats(params models.GetDeveloperTicketStatsParameters) (*models.GetDeveloperTicketStats, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetTicketData.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -125,6 +130,7 @@ func (c *Client) GetDeveloperTicketStats(params models.GetDeveloperTicketStatsPa
 func (c *Client) GetAchievementTicketStats(params models.GetAchievementTicketStatsParameters) (*models.GetAchievementTicketStats, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetTicketData.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.A(params.AchievementID),
diff --git a/user.go b/user.go
index 6b7a296..75c51f3 100644
--- a/user.go
+++ b/user.go
@@ -14,6 +14,7 @@ import (
 func (c *Client) GetUserProfile(params models.GetUserProfileParameters) (*models.GetUserProfile, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetUserProfile.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -32,6 +33,7 @@ func (c *Client) GetUserProfile(params models.GetUserProfileParameters) (*models
 func (c *Client) GetUserRecentAchievements(params models.GetUserRecentAchievementsParameters) ([]models.GetUserRecentAchievements, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetUserRecentAchievements.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -54,6 +56,7 @@ func (c *Client) GetUserRecentAchievements(params models.GetUserRecentAchievemen
 func (c *Client) GetAchievementsEarnedBetween(params models.GetAchievementsEarnedBetweenParameters) ([]models.GetAchievementsEarnedBetween, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetAchievementsEarnedBetween.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -74,6 +77,7 @@ func (c *Client) GetAchievementsEarnedBetween(params models.GetAchievementsEarne
 func (c *Client) GetAchievementsEarnedOnDay(params models.GetAchievementsEarnedOnDayParameters) ([]models.GetAchievementsEarnedOnDay, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetAchievementsEarnedOnDay.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -93,6 +97,7 @@ func (c *Client) GetAchievementsEarnedOnDay(params models.GetAchievementsEarnedO
 func (c *Client) GetGameInfoAndUserProgress(params models.GetGameInfoAndUserProgressParameters) (*models.GetGameInfoAndUserProgress, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetGameInfoAndUserProgress.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -120,6 +125,7 @@ func (c *Client) GetGameInfoAndUserProgress(params models.GetGameInfoAndUserProg
 func (c *Client) GetUserCompletionProgress(params models.GetUserCompletionProgressParameters) (*models.GetUserCompletionProgress, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetUserCompletionProgress.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -138,6 +144,7 @@ func (c *Client) GetUserCompletionProgress(params models.GetUserCompletionProgre
 func (c *Client) GetUserAwards(params models.GetUserAwardsParameters) (*models.GetUserAwards, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetUserAwards.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -156,6 +163,7 @@ func (c *Client) GetUserAwards(params models.GetUserAwardsParameters) (*models.G
 func (c *Client) GetUserClaims(params models.GetUserClaimsParameters) ([]models.GetUserClaims, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetUserClaims.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -174,6 +182,7 @@ func (c *Client) GetUserClaims(params models.GetUserClaimsParameters) ([]models.
 func (c *Client) GetUserGameRankAndScore(params models.GetUserGameRankAndScoreParameters) ([]models.GetUserGameRankAndScore, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetUserGameRankAndScore.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -193,6 +202,7 @@ func (c *Client) GetUserGameRankAndScore(params models.GetUserGameRankAndScorePa
 func (c *Client) GetUserPoints(params models.GetUserPointsParameters) (*models.GetUserPoints, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetUserPoints.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -215,6 +225,7 @@ func (c *Client) GetUserProgress(params models.GetUserProgressParameters) (*map[
 	}
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetUserProgress.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -234,6 +245,7 @@ func (c *Client) GetUserProgress(params models.GetUserProgressParameters) (*map[
 func (c *Client) GetUserRecentlyPlayedGames(params models.GetUserRecentlyPlayedGamesParameters) ([]models.GetUserRecentlyPlayedGames, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetUserRecentlyPlayedGames.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -259,6 +271,7 @@ func (c *Client) GetUserRecentlyPlayedGames(params models.GetUserRecentlyPlayedG
 func (c *Client) GetUserSummary(params models.GetUserSummaryParameters) (*models.GetUserSummary, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetUserSummary.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -284,6 +297,7 @@ func (c *Client) GetUserSummary(params models.GetUserSummaryParameters) (*models
 func (c *Client) GetUserCompletedGames(params models.GetUserCompletedGamesParameters) ([]models.GetUserCompletedGames, error) {
 	r, err := c.do(
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetUserCompletedGames.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),
@@ -302,6 +316,7 @@ func (c *Client) GetUserCompletedGames(params models.GetUserCompletedGamesParame
 func (c *Client) GetUserWantToPlayList(params models.GetUserWantToPlayListParameters) (*models.GetUserWantToPlayList, error) {
 	details := []raHttp.RequestDetail{
 		raHttp.Method(http.MethodGet),
+		raHttp.UserAgent(c.UserAgent),
 		raHttp.Path("/API/API_GetUserWantToPlayList.php"),
 		raHttp.APIToken(c.Secret),
 		raHttp.U(params.Username),