diff --git a/src/main.cpp b/src/main.cpp
index a9b892f..d7916dd 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,3 +1,4 @@
+#include "nlohmann/json_fwd.hpp"
 #include "skwyward-api-utils.hpp"
 #include "spdlog/spdlog.h"
 
@@ -13,5 +14,8 @@ int main (int argc, char *argv[]) {
 
   api_utils::ErrorResponse test_login = api_methods::get_auth_status(base_uri, test_username, test_password);
   spdlog::info("Auth attempt response : {}", test_login.success);
+
+  api_utils::GradesResponse test_grades = api_methods::get_grades(base_uri, test_username, test_password);
+  spdlog::info("Grades: {}", nlohmann::json {test_grades}.dump());
   return 0;
 }
diff --git a/src/skwyward-api-utils.cpp b/src/skwyward-api-utils.cpp
index b90deb3..63d7568 100644
--- a/src/skwyward-api-utils.cpp
+++ b/src/skwyward-api-utils.cpp
@@ -1,4 +1,5 @@
 #include "skwyward-api-utils.hpp"
+#include "nlohmann/json_fwd.hpp"
 
 #include <cpr/cpr.h>
 #include <algorithm>
@@ -9,20 +10,50 @@ using nlohmann::json;
 
 // ---------- Helpers ----------
 
-static double parse_percent_score(const json& j) {
+static double parse_percent_score(const nlohmann::json& j) {
+    // Case 1: real number already
     if (j.is_number()) {
         return j.get<double>();
     }
 
+    // Case 2: string input
     if (j.is_string()) {
         std::string s = j.get<std::string>();
-        s.erase(std::remove(s.begin(), s.end(), '%'), s.end());
-        return std::stod(s);
+
+        // Trim whitespace
+        s.erase(0, s.find_first_not_of(" \t\n\r"));
+        s.erase(s.find_last_not_of(" \t\n\r") + 1);
+
+        // Empty or known non-values
+        if (s.empty() || s == "N/A" || s == "--") {
+            return std::numeric_limits<double>::quiet_NaN();
+        }
+
+        // Remove trailing %
+        if (!s.empty() && s.back() == '%') {
+            s.pop_back();
+        }
+
+        // Fast numeric parse (no exceptions)
+        double value{};
+        auto [ptr, ec] = std::from_chars(
+            s.data(),
+            s.data() + s.size(),
+            value
+        );
+
+        if (ec == std::errc()) {
+            return value;
+        }
+
+        return std::numeric_limits<double>::quiet_NaN();
     }
 
-    return 0.0;
+    // Everything else (null, object, etc.)
+    return std::numeric_limits<double>::quiet_NaN();
 }
 
+
 // ---------- Login ----------
 
 void to_json(json& j, const Login& r) {
@@ -149,7 +180,7 @@ api_utils::ErrorResponse get_auth_status(
     std::string username,
     std::string password
 ) {
-    api_utils::Login login{username, password};
+  api_utils::Login login = api_utils::Login{username, password};
 
     cpr::Response r = cpr::Post(
         cpr::Url{url + "/check-auth"},
@@ -160,6 +191,15 @@ api_utils::ErrorResponse get_auth_status(
     return nlohmann::json::parse(r.text)
         .get<api_utils::ErrorResponse>();
 }
-
+  api_utils::GradesResponse get_grades(std::string url, std::string username, std::string password) {
+    api_utils::Login login = api_utils::Login{username, password}; 
+    cpr::Response r = cpr::Post(
+        cpr::Url{url + "/fetch-grades"}, 
+        cpr::Body{nlohmann::json(login).dump()},
+        cpr::Header{{"Content-Type", "application/json"}}
+    );
+    
+  return nlohmann::json::parse(r.text).get<api_utils::GradesResponse>();
+  }
 } // namespace api_methods
 
diff --git a/src/skwyward-api-utils.hpp b/src/skwyward-api-utils.hpp
index 6d0ea5a..f3d5f49 100644
--- a/src/skwyward-api-utils.hpp
+++ b/src/skwyward-api-utils.hpp
@@ -31,7 +31,7 @@ struct StatusResponse {
 struct AssignmentGrade {
     std::string name;
     std::string dueDate;
-    double score;              // <-- parsed from "72.00%"
+    double score;             
     std::string attempts;
     bool isMajorGrade;
 };
@@ -80,5 +80,6 @@ namespace api_methods {
         std::string username,
         std::string password
     );
+    api_utils::GradesResponse get_grades( std::string url, std::string username, std::string password); 
 }