diff --git a/api/client/decouvert.php b/api/client/decouvert.php
new file mode 100644
index 0000000..978c9dd
--- /dev/null
+++ b/api/client/decouvert.php
@@ -0,0 +1,29 @@
+<?php
+
+require_once("../commun.php");
+
+verifierDroit(3);
+
+if (!(donne("idCarte") && donne("decouvert"))) {
+    retour("requete_malformee");
+}
+
+if (!clientExiste(donne("idCarte"))) {
+    retour("client_inconnu");
+}
+
+$decouvert = ($_POST['decouvert'] == 'true' || $_POST['decouvert'] == 1) ? 1 : 0;
+
+$requete = $db->prepare("UPDATE Clients SET decouvert=? WHERE idCarte=?");
+if (!$requete) {
+    retour("erreur_bdd_preparee", ["message" => $db->error]);
+}
+$requete->bind_param("ss", $decouvert, $_POST["idCarte"]);
+if (!$requete->execute()) {
+    retour("erreur_bdd", ["message" => $requete->error]);
+}
+$requete->close();
+
+retour("ok");
+
+?>
--
libgit2 0.21.2