diff --git a/internal/api/handlers/channels.go b/internal/api/handlers/channels.go
index 1a592f3..ed0d533 100644
--- a/internal/api/handlers/channels.go
+++ b/internal/api/handlers/channels.go
@@ -7,6 +7,7 @@ import (
 	"encoding/hex"
 	"net/http"
 	"strconv"
+	"strings"
 	"time"
 
 	"github.com/MeshCore-Beacon/beacon-server/internal/api"
@@ -63,7 +64,7 @@ func listChannels(reader api.Reader) http.HandlerFunc {
 			cursor = c
 		}
 		var hashHex []byte
-		if hash := r.URL.Query().Get("hash"); hash != "" {
+		if hash := strings.ToLower(r.URL.Query().Get("hash")); hash != "" {
 			h, decodeErr := hex.DecodeString(hash)
 			if decodeErr != nil {
 				respondError(w, http.StatusBadRequest, "invalid channel hash")
diff --git a/internal/api/handlers/messages.go b/internal/api/handlers/messages.go
index 150e21c..da5f8ee 100644
--- a/internal/api/handlers/messages.go
+++ b/internal/api/handlers/messages.go
@@ -7,6 +7,7 @@ import (
 	"encoding/hex"
 	"net/http"
 	"strconv"
+	"strings"
 	"time"
 
 	"github.com/MeshCore-Beacon/beacon-server/internal/api"
@@ -44,7 +45,7 @@ func MessagesRouter(reader api.Reader) http.Handler {
 func listMessages(reader api.Reader) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		channelIDParam := r.URL.Query().Get("channelID")
-		channelHashParam := r.URL.Query().Get("channelHash")
+		channelHashParam := strings.ToLower(r.URL.Query().Get("channelHash"))
 		if channelIDParam != "" && channelHashParam != "" {
 			respondError(w, http.StatusBadRequest, "filter by either channelId or channelHash, not both")
 			return
diff --git a/internal/api/handlers/nodes.go b/internal/api/handlers/nodes.go
index 44d7c71..86b5a59 100644
--- a/internal/api/handlers/nodes.go
+++ b/internal/api/handlers/nodes.go
@@ -7,6 +7,7 @@ import (
 	"encoding/hex"
 	"net/http"
 	"strconv"
+	"strings"
 
 	"github.com/MeshCore-Beacon/beacon-server/internal/api"
 	"github.com/go-chi/chi/v5"
@@ -83,7 +84,7 @@ func listNodes(reader api.Reader) http.HandlerFunc {
 			cursor = c
 		}
 		var pubkey []byte
-		if pubkeyParam := r.URL.Query().Get("pubkey"); pubkeyParam != "" {
+		if pubkeyParam := strings.ToLower(r.URL.Query().Get("pubkey")); pubkeyParam != "" {
 			b, err := hex.DecodeString(pubkeyParam)
 			if err != nil {
 				respondError(w, http.StatusBadRequest, "pubkey must be a valid hex string")
diff --git a/internal/api/handlers/packets.go b/internal/api/handlers/packets.go
index 35e189f..985d5ce 100644
--- a/internal/api/handlers/packets.go
+++ b/internal/api/handlers/packets.go
@@ -7,6 +7,7 @@ import (
 	"encoding/hex"
 	"net/http"
 	"strconv"
+	"strings"
 	"time"
 
 	"github.com/MeshCore-Beacon/beacon-server/internal/api"
@@ -212,7 +213,7 @@ func listPacketsBackfill(reader api.Reader) http.HandlerFunc {
 //	@Router		/packets/{packetHash} [get]
 func getPacket(reader api.Reader) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		hashHex := chi.URLParam(r, "packetHash")
+		hashHex := strings.ToLower(chi.URLParam(r, "packetHash"))
 		hash, err := hex.DecodeString(hashHex)
 		if err != nil {
 			respondError(w, http.StatusBadRequest, "invalid packet hash")
diff --git a/internal/api/handlers/routes.go b/internal/api/handlers/routes.go
index b6bb563..9a1f128 100644
--- a/internal/api/handlers/routes.go
+++ b/internal/api/handlers/routes.go
@@ -6,6 +6,7 @@ package handlers
 import (
 	"net/http"
 	"strconv"
+	"strings"
 	"time"
 
 	"github.com/MeshCore-Beacon/beacon-server/internal/api"
@@ -80,9 +81,9 @@ func listKnownRoutes(reader api.Reader) http.HandlerFunc {
 //	@Router		/routes/search [get]
 func searchKnownRoutes(reader api.Reader) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		iata := r.URL.Query().Get("iata")
-		from := r.URL.Query().Get("from")
-		to := r.URL.Query().Get("to")
+		iata := strings.ToUpper(r.URL.Query().Get("iata"))
+		from := strings.ToLower(r.URL.Query().Get("from"))
+		to := strings.ToLower(r.URL.Query().Get("to"))
 		if iata == "" || from == "" || to == "" {
 			respondError(w, http.StatusBadRequest, "iata, from and to are required")
 			return
@@ -111,10 +112,10 @@ func searchKnownRoutes(reader api.Reader) http.HandlerFunc {
 //	@Router		/routes/cross [get]
 func searchCrossIATARoutes(reader api.Reader) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		fromHash := r.URL.Query().Get("fromHash")
-		fromIATA := r.URL.Query().Get("fromIata")
-		toHash := r.URL.Query().Get("toHash")
-		toIATA := r.URL.Query().Get("toIata")
+		fromHash := strings.ToLower(r.URL.Query().Get("fromHash"))
+		fromIATA := strings.ToUpper(r.URL.Query().Get("fromIata"))
+		toHash := strings.ToLower(r.URL.Query().Get("toHash"))
+		toIATA := strings.ToUpper(r.URL.Query().Get("toIata"))
 		if fromHash == "" || fromIATA == "" || toHash == "" || toIATA == "" {
 			respondError(w, http.StatusBadRequest, "fromHash, fromIata, toHash and toIata are required")
 			return