diff --git a/db/db-sqlx-postgres/src/errors.rs b/db/db-sqlx-postgres/src/errors.rs
index 29d2e843..cd2350d7 100644
--- a/db/db-sqlx-postgres/src/errors.rs
+++ b/db/db-sqlx-postgres/src/errors.rs
@@ -33,6 +33,8 @@ pub fn map_register_err(e: Error) -> DBError {
                 DBError::EmailTaken
             } else if msg.contains("mcaptcha_users_secret_key") {
                 DBError::SecretTaken
+            } else if msg.contains("mcaptcha_config_key_key") {
+                DBError::CaptchaKeyTaken
             } else {
                 DBError::DBError(Box::new(Error::Database(err)))
             }
diff --git a/db/db-sqlx-postgres/src/lib.rs b/db/db-sqlx-postgres/src/lib.rs
index df9c285a..b755c008 100644
--- a/db/db-sqlx-postgres/src/lib.rs
+++ b/db/db-sqlx-postgres/src/lib.rs
@@ -278,6 +278,23 @@ impl MCDatabase for Database {
         .map_err(map_register_err)?;
         Ok(())
     }
+
+    /// create new captcha
+    async fn create_captcha(&self, username: &str, p: &CreateCaptcha) -> DBResult<()> {
+        sqlx::query!(
+            "INSERT INTO mcaptcha_config
+        (key, user_id, duration, name)
+        VALUES ($1, (SELECT ID FROM mcaptcha_users WHERE name = $2), $3, $4)",
+            p.key,
+            username,
+            p.duration as i32,
+            p.description,
+        )
+        .execute(&self.pool)
+        .await
+        .map_err(map_register_err)?;
+        Ok(())
+    }
 }
 
 fn now_unix_time_stamp() -> i64 {
diff --git a/db/db-sqlx-postgres/src/tests.rs b/db/db-sqlx-postgres/src/tests.rs
index 49da6461..e2e44e97 100644
--- a/db/db-sqlx-postgres/src/tests.rs
+++ b/db/db-sqlx-postgres/src/tests.rs
@@ -29,6 +29,10 @@ async fn everyting_works() {
     const NAME: &str = "postgresuser";
     const PASSWORD: &str = "pasdfasdfasdfadf";
     const SECRET1: &str = "postgressecret1";
+    // captcha config
+    const CAPTCHA_SECRET: &str = "postgrescaptchasecret";
+    const CAPTCHA_DESCRIPTION: &str = "postgrescaptchadescription";
+    const CAPTCHA_DURATION: i32 = 30;
 
     let url = env::var("POSTGRES_DATABASE_URL").unwrap();
     let pool_options = PgPoolOptions::new().max_connections(2);
@@ -42,5 +46,11 @@ async fn everyting_works() {
         hash: PASSWORD,
         secret: SECRET1,
     };
-    database_works(&db, &p).await;
+
+    let c = CreateCaptcha {
+        duration: CAPTCHA_DURATION,
+        key: CAPTCHA_SECRET,
+        description: CAPTCHA_DESCRIPTION,
+    };
+    database_works(&db, &p, &c).await;
 }