diff --git a/src/auth/endpoints.rs b/src/auth/endpoints.rs
new file mode 100644
index 0000000..e7b9a5d
--- /dev/null
+++ b/src/auth/endpoints.rs
@@ -0,0 +1,22 @@
+use std::marker::PhantomData;
+
+use crate::{ContentType, Endpoint, LoginSuccess, OpenIdDiscovery, auth::login::LoginRequest};
+
+pub const LOGIN_ENDPOINT: Endpoint<LoginSuccess, LoginRequest> = Endpoint::Post {
+    url: "/api/login",
+    auth: false,
+    content_type: ContentType::Urlencoded,
+    _types: PhantomData,
+};
+
+pub const OPEN_ID_DISCOVERY_ENDPOINT: Endpoint<OpenIdDiscovery, ()> = Endpoint::Get {
+    url: "/.well-known/openid-configuration",
+    auth: false,
+    _types: PhantomData,
+};
+
+pub const LOGIN_TOKEN_ENDPOINT: Endpoint<String, ()> = Endpoint::Get {
+    url: "/api/3/logintoken",
+    auth: true,
+    _types: PhantomData,
+};
diff --git a/src/auth/login.rs b/src/auth/login.rs
index c7716c8..90d9b8e 100644
--- a/src/auth/login.rs
+++ b/src/auth/login.rs
@@ -15,6 +15,15 @@ pub struct LoginSuccess {
     pub app_version: String,
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub struct LoginRequest {
+    client_id: String,
+    grant_type: String,
+    username: String,
+    password: String,
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize)]
 #[serde(rename_all = "snake_case")]
 pub enum TokenType {
diff --git a/src/auth/mod.rs b/src/auth/mod.rs
index 6da0d2a..c897508 100644
--- a/src/auth/mod.rs
+++ b/src/auth/mod.rs
@@ -1,7 +1,9 @@
+mod endpoints;
 mod login;
 mod open_id_discovery;
 mod user_jwt_claim;
 
-pub use login::{LoginSuccess, TokenType};
-pub use open_id_discovery::OpenIdDiscovery;
-pub use user_jwt_claim::UserJwtClaim;
+pub use endpoints::*;
+pub use login::*;
+pub use open_id_discovery::*;
+pub use user_jwt_claim::*;
diff --git a/src/endpoints.rs b/src/endpoints.rs
new file mode 100644
index 0000000..b26ae89
--- /dev/null
+++ b/src/endpoints.rs
@@ -0,0 +1,20 @@
+use std::marker::PhantomData;
+
+pub enum Endpoint<Response, Request> {
+    Get {
+        url: &'static str,
+        auth: bool,
+        _types: PhantomData<fn() -> (Response, Request)>,
+    },
+    Post {
+        url: &'static str,
+        auth: bool,
+        content_type: ContentType,
+        _types: PhantomData<fn() -> (Response, Request)>,
+    },
+}
+
+pub enum ContentType {
+    Urlencoded,
+    Json,
+}
diff --git a/src/events.rs b/src/events.rs
index 9c35ef5..cd4fb40 100644
--- a/src/events.rs
+++ b/src/events.rs
@@ -2,6 +2,8 @@ use crate::{Room, RoomSet, SchoolClass, SchoolClassSet, StdType, Student, Teache
 use chrono::{DateTime, FixedOffset};
 use serde::{Deserialize, Serialize};
 
+/// /api/3/events GET body response
+/// Get /api/3/events/my GET body response
 #[derive(Debug, Clone, Serialize, Deserialize)]
 #[serde(rename_all = "PascalCase")]
 pub struct Events {
diff --git a/src/homeworks/endpoints.rs b/src/homeworks/endpoints.rs
new file mode 100644
index 0000000..8df1c77
--- /dev/null
+++ b/src/homeworks/endpoints.rs
@@ -0,0 +1,25 @@
+use std::marker::PhantomData;
+
+use crate::{Endpoint, HomeworkList};
+
+pub const HOMEWORKS_COUNT_ENDPOINT: Endpoint<(), i64> = Endpoint::Get {
+    url: "/api/3/homeworks/count-actual",
+    auth: true,
+    _types: PhantomData,
+};
+
+/// ID = homework ID (String)
+/// finished = homework state (bool)
+pub const HOMEWORK_DONE_ENDPOINT: Endpoint<(), bool> = Endpoint::Get {
+    url: "api/3/homeworks/:id/student-done/:finished", 
+    auth: true,
+    _types: PhantomData,
+};
+
+
+/// Query from and to (Datetime)
+pub const HOMEWORKS_ENDPOINT: Endpoint<(), HomeworkList> = Endpoint::Get {
+    url: "api/3/homeworks", 
+    auth: true,
+    _types: PhantomData,
+};
\ No newline at end of file
diff --git a/src/homework.rs b/src/homeworks/homework.rs
similarity index 100%
rename from src/homework.rs
rename to src/homeworks/homework.rs
diff --git a/src/homeworks/mod.rs b/src/homeworks/mod.rs
new file mode 100644
index 0000000..e10cf70
--- /dev/null
+++ b/src/homeworks/mod.rs
@@ -0,0 +1,5 @@
+mod endpoints;
+mod homework;
+
+pub use endpoints::*;
+pub use homework::*;
diff --git a/src/lib.rs b/src/lib.rs
index dbaec2d..7ed1a5a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -4,11 +4,12 @@ mod attachment;
 //campaign
 mod auth;
 mod campaign;
+mod endpoints;
 mod error;
 mod events;
 mod gdpr;
 //komens
-mod homework; //TDOS
+mod homeworks; //TDOS
 //marking
 mod marks;
 mod payments;
@@ -27,14 +28,15 @@ pub use api_info::ApiInfo;
 pub use attachment::AttachmentInfo;
 pub use auth::*;
 pub use campaign::Campaign;
+pub use endpoints::*;
 pub use error::{Error, ModelState, StringArray};
 pub use events::{Event, EventTime, EventType, Events};
 pub use gdpr::{
     GdprCommissioner, GdprCommissioners, GdprConsent, GdprConsentRights, GdprConsentState,
     GdprValidity,
 };
-pub use homework::{HomeworkList, HomeworkListItem};
-pub use marks::{Mark, MarkConfirmationStatus, Marks, SubjectMarks};
+pub use homeworks::*;
+pub use marks::*;
 pub use payments::*;
 pub use semester::{
     CertificateTerm, CertificateTerms, FinalMark, PedagogicalMeasure, PedagogicalMeasures,
@@ -43,7 +45,7 @@ pub use stdtype::{
     Room, RoomSet, SchoolClass, SchoolClassSet, StdClassGroup, StdType, StdTypeNullable, Student,
     Teacher, TeacherSet, TimetableStudent,
 };
-pub use subjects::{Subject, Subjects};
+pub use subjects::*;
 pub use substitutions::{
     ChangeDisplayType, ChangeLessonInfo, SubstitutionChange, SubstitutionChangeType, Substitutions,
 };
diff --git a/src/marks/endpoints.rs b/src/marks/endpoints.rs
new file mode 100644
index 0000000..5c6a55c
--- /dev/null
+++ b/src/marks/endpoints.rs
@@ -0,0 +1,22 @@
+use std::marker::PhantomData;
+
+use crate::{ContentType, Endpoint, Marks};
+
+pub const CONFIRM_MARKS_ENDPOINT: Endpoint<(), Vec<String>> = Endpoint::Post {
+    url: "/api/3/marks/SetClassificationConfirmation",
+    auth: true,
+    content_type: ContentType::Json,
+    _types: PhantomData,
+};
+
+pub const COUNT_NEW_MARKS_ENDPOINT: Endpoint<i64, ()> = Endpoint::Get {
+    url: "/api/3/marks/count-new",
+    auth: true,
+    _types: PhantomData,
+};
+
+pub const MARKS_ENDPOINT: Endpoint<Marks, ()> = Endpoint::Get {
+    url: "/api/3/marks",
+    auth: true,
+    _types: PhantomData,
+};
diff --git a/src/marks/mod.rs b/src/marks/mod.rs
new file mode 100644
index 0000000..1530cc9
--- /dev/null
+++ b/src/marks/mod.rs
@@ -0,0 +1,5 @@
+mod endpoints;
+mod subject_marks;
+
+pub use endpoints::*;
+pub use subject_marks::*;
diff --git a/src/marks.rs b/src/marks/subject_marks.rs
similarity index 97%
rename from src/marks.rs
rename to src/marks/subject_marks.rs
index 3c02a26..ddac43f 100644
--- a/src/marks.rs
+++ b/src/marks/subject_marks.rs
@@ -27,7 +27,7 @@ pub struct SubjectMarks {
 pub struct Mark {
     pub mark_date: DateTime<FixedOffset>,
     pub edit_date: DateTime<FixedOffset>,
-    pub is_invalid_date: Option<bool>,
+    pub is_invalid_date: bool,
     pub teacher_id: Option<String>,
     pub subject_id: String,
     pub is_new: bool,
diff --git a/src/subjects/endpoints.rs b/src/subjects/endpoints.rs
new file mode 100644
index 0000000..8ee5e49
--- /dev/null
+++ b/src/subjects/endpoints.rs
@@ -0,0 +1,9 @@
+use std::marker::PhantomData;
+
+use crate::{Endpoint, Subjects};
+
+pub const SUBJECTS_ENDPOINT: Endpoint<(), Subjects> = Endpoint::Get {
+    url: "/api/3/subjects",
+    auth: true,
+    _types: PhantomData,
+};
diff --git a/src/subjects/mod.rs b/src/subjects/mod.rs
new file mode 100644
index 0000000..1056ce2
--- /dev/null
+++ b/src/subjects/mod.rs
@@ -0,0 +1,5 @@
+mod endpoints;
+mod subject_types;
+
+pub use endpoints::*;
+pub use subject_types::*;
diff --git a/src/subjects.rs b/src/subjects/subject_types.rs
similarity index 100%
rename from src/subjects.rs
rename to src/subjects/subject_types.rs
diff --git a/src/user/endpoints.rs b/src/user/endpoints.rs
new file mode 100644
index 0000000..9d4f301
--- /dev/null
+++ b/src/user/endpoints.rs
@@ -0,0 +1,15 @@
+use std::marker::PhantomData;
+
+use crate::{Endpoint, UserInfo};
+
+pub const USER_INFO_ENDPOINT: Endpoint<UserInfo, ()> = Endpoint::Get {
+    url: "/api/3/user",
+    auth: true,
+    _types: PhantomData,
+};
+
+pub const STUDENT_AT_SCHOOL_ENDPOINT: Endpoint<bool, ()> = Endpoint::Get {
+    url: "/api/3/user/student-at-school",
+    auth: true,
+    _types: PhantomData,
+};
diff --git a/src/user/mod.rs b/src/user/mod.rs
index fd87e59..ae4154d 100644
--- a/src/user/mod.rs
+++ b/src/user/mod.rs
@@ -1,7 +1,9 @@
+mod endpoints;
 mod modules;
 mod setting_modules;
 mod user_info;
 
+pub use endpoints::*;
 pub use modules::*;
 pub use setting_modules::*;
 pub use user_info::*;
diff --git a/tracker.md b/tracker.md
index 1c2135a..34248c2 100644
--- a/tracker.md
+++ b/tracker.md
@@ -24,4 +24,104 @@
 - [ ] OpenApi schema generation
 - [ ] documentation
 - [ ] tests
-- [ ] constructors
\ No newline at end of file
+- [ ] constructors
+
+# Endpoints
+- [ ] /api/3/komens/message/:messageId/mark-as-read
+- [x] /api/3/marks
+- [x] /api/3/homeworks/:id/student-done/:finished
+- [ ] /api/3/marking/atoms/:atomId/headers
+- [ ] /api/3/payments/classfund/teacher/students/:classId
+- [ ] /api/3/classbook/lessonTags
+- [ ] /api/3/komens/messages/rating/:messageId
+- [ ] /api/3/absence/student
+- [ ] /api/3/webmodule
+- [ ] /api/3/timetable/actual
+- [ ] /api/3/payments/classfund/teacher/document/detail/:documentId
+- [ ] /api/3
+- [ ] /api/3/komens/attachment/:id
+- [ ] /api/3/subjects/themes/:subjectId
+- [ ] /api/3/payments/classfund
+- [ ] /api/3/gdpr/consents/person/child
+- [ ] /api/3/komens/concept/:conceptId
+- [ ] /api/3/marks/measures
+- [ ] /api/3/unregister-user-notification
+- [ ] /api/3/gdpr/consent/:id/agree
+- [x] /api/3/marks/count-new
+- [ ] /api/3/komens/concept
+- [ ] /api/3/timetable/permanent
+- [ ] /api/3/komens/messages/noticeboard
+- [ ] /api/3/komens/messages/apology/:messageId
+- [ ] /api/3/komens/messages/received/:messageId
+- [x] /api/3/user
+- [ ] /api/3/payments/regularpayments/detail/:paymentId
+- [ ] /api/3/substitutions
+- [ ] /api/3/marks/what-if
+- [ ] /api/3/gdpr/commissioner/send-objection
+- [ ] /api/3/gdpr/consents/person/new
+- [ ] /api/3/lesson/:lessonId/absence
+- [ ] /api/3/payments/regularpayments/summary
+- [ ] /api/3/emergency/startemergency
+- [ ] /api/3/timetable/permanent/class/:classId
+- [ ] /api/3/gdpr/commissioner/send-report
+- [ ] /api/3/komens/message/:messageId/mark-as-unhidden
+- [ ] /api/3/lesson/:lessonId/studentsTimetable
+- [ ] /api/3/marks/final
+- [ ] /api/3/timetable/student/:studentId
+- [ ] /api/3/marking/atom/:atomId/headerOptions
+- [ ] /api/3/gdpr/consent/:id/disagree
+- [ ] /api/3/komens/messages/sent
+- [ ] /api/3/emergency/configuration
+- [ ] /api/3/komens/message
+- [ ] /api/3/komens/message/:messageId/mark-as-hidden
+- [ ] /api/3/lesson/:lessonId/past
+- [ ] /api/3/komens/attachment
+- [ ] /api/3/komens/messages/received
+- [ ] /api/3/login/:token
+- [ ] /api/3/komens/concepts
+- [ ] /api/3/komens/messages/received/unread
+- [ ] /api/3/payments/regularpayments/teacher/prescriptions/:prescriptionId
+- [ ] /api/3/timetable/actual/class/:classId
+- [ ] /api/3/gdpr/consents/person
+- [ ] /api/3/komens/messages/unread
+- [ ] /api/3/absence
+- [ ] /api/3/komens/message/:messageId/mark-as-confirmed
+- [ ] /api/3/komens/messages/apology
+- [ ] /api/3/events
+- [ ] /api/3/komens/concepts/count
+- [ ] /api/3/payments/regularpayments/teacher/prescriptions/:prescriptionId/students
+- [ ] /api/3/payments/regularpayments
+- [ ] /api/3/komens/messages/noticeboard/:messageId&
+- [ ] /api/3/komens/message-types/reply/:messageId
+- [ ] /api/3/payments/regularpayments/teacher/prescriptions
+- [x] /api/3/marks/SetClassificationConfirmation
+- [x] /api/3/homeworks/count-actual
+- [ ] /api/3/gdpr/consent/:id/revoke-request
+- [ ] /api/3/payments/regularpayments/teacher/prescriptions/:prescriptionId/students/:studentId
+- [ ] /api/3/marking/atoms
+- [ ] /api/3/absence/canexcuse/:studentId
+- [ ] /api/3/komens/rating-templates
+- [ ] /api/3/emergency/participantsselection
+- [ ] /api/3/komens/messages/noticeboard/unread
+- [ ] /api/3/komens/message-types
+- [ ] /api/3/events/my
+- [ ] /api/3/gdpr/commissioners
+- [ ] /api/3/classbook/:recordId
+- [ ] /api/3/marking/marks/:atomId
+- [ ] /api/3/substitutions/cycles
+- [x] /api/3/logintoken
+- [ ] /api/3/komens/message-types/edit/:messageId
+- [ ] /api/3/payments/classfund/teacher/documents/:classId
+- [ ] /api/3/payments/classfund/summary
+- [ ] /api/3/register-notification
+- [ ] /api/3/payments/classfund/paymentsinfo
+- [ ] /api/3/komens/messages/rating
+- [ ] /api/3/komens/message/:messageId
+- [x] /api/3/homeworks
+- [x] /api/3/subjects
+- [ ] /api/3/classbook
+- [x] /api/3/user/student-at-school
+- [ ] /api/3/payments/classfund/teacher/summary
+- [ ] /api/3/komens/messages/sent/:messageId
+- [x] /api/login
+- [x] /.well-known/openid-configuration
\ No newline at end of file