diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
new file mode 100644
index 0000000..50a63d6
--- /dev/null
+++ b/.github/workflows/documentation.yml
@@ -0,0 +1,59 @@
+name: Documentation
+
+on:
+  push:
+    paths-ignore:
+      - '**.md'
+      - '**.jpg'
+      - '**.jpeg'
+      - '**.png'
+      - '**.yaml'
+      - '**.json'
+
+jobs:
+  build_documentation:
+    name: Build documentation
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    if: ${{ github.ref == 'refs/heads/main' }}
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ github.head_ref }}
+
+      - name: Install swag
+        run: go install github.com/swaggo/swag/cmd/swag
+
+      - name: Install redoc
+        run: sudo apt install npm && sudo npm install redoc
+
+      - name: Build the API documentation
+        run: /home/runner/go/bin/swag init --parseDependency=true -d . -g cmd/pushbits/main.go
+
+      - name: Build static HTML
+        run: npx redoc-cli bundle docs/swagger.yaml --output index.html
+
+      - name: Setup SSH keys and known_hosts
+        env:
+          SSH_AUTH_SOCK: /tmp/ssh_agent.sock
+        run: |
+          ssh-agent -a $SSH_AUTH_SOCK > /dev/null
+          ssh-add - <<< "${{ secrets.WEBSITE_DEPLOY_KEY }}"
+
+      - name: Checkout website
+        env:
+          SSH_AUTH_SOCK: /tmp/ssh_agent.sock
+        run: mkdir website && git clone git@github.com:pushbits/website.git website
+
+      - name: Copy index.html
+        run: cp index.html website/static/api/index.html
+
+      - name: Set Git config
+        run: git config --global user.email "pipeline@pushbits.io" && git config --global user.name "PushBits Pipeline"
+
+      - name: Commit and push
+        env:
+          SSH_AUTH_SOCK: /tmp/ssh_agent.sock
+        run: cd website && git add . && git commit -m "Update documentation to ${{ github.sha }}" && git push
diff --git a/.gitignore b/.gitignore
index f5f8b98..63ad616 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,7 @@ config.yml
 # vendor/
 
 *.code-workspace
+
+# Build documentation
+
+docs/
\ No newline at end of file
diff --git a/cmd/pushbits/main.go b/cmd/pushbits/main.go
index f2965e6..8de25e1 100644
--- a/cmd/pushbits/main.go
+++ b/cmd/pushbits/main.go
@@ -26,6 +26,21 @@ func setupCleanup(db *database.Database, dp *dispatcher.Dispatcher) {
 	}()
 }
 
+// @title PushBits Server API Documentation
+// @version 0.7.2
+// @description Documentation for the PushBits server API. <br> [Contact](https://www.eiken.dev/)
+
+// @contact.name PushBits
+// @contact.url https://github.com/pushbits
+
+// @license.name ISC
+// @license.url https://github.com/pushbits/server/blob/master/LICENSE
+
+// @host your-domain.net
+// @BasePath /
+// @query.collection.format multi
+
+// @securityDefinitions.basic BasicAuth
 func main() {
 	log.Println("Starting PushBits.")
 
diff --git a/internal/api/application.go b/internal/api/application.go
index f90c9bd..9914924 100644
--- a/internal/api/application.go
+++ b/internal/api/application.go
@@ -109,7 +109,19 @@ func (h *ApplicationHandler) updateApplication(ctx *gin.Context, a *model.Applic
 	return nil
 }
 
-// CreateApplication creates an application.
+// CreateApplication godoc
+// @Summary Create Application
+// @Description Create a new application
+// @ID post-application
+// @Tags Application
+// @Accept json,mpfd
+// @Produce json
+// @Param name query string true "Name of the application"
+// @Param strict_compatability query boolean false "Use strict compatability mode"
+// @Success 200 {object} model.Application
+// @Failure 400 ""
+// @Security BasicAuth
+// @Router /application [post]
 func (h *ApplicationHandler) CreateApplication(ctx *gin.Context) {
 	var createApplication model.CreateApplication
 
@@ -131,7 +143,17 @@ func (h *ApplicationHandler) CreateApplication(ctx *gin.Context) {
 	ctx.JSON(http.StatusOK, &application)
 }
 
-// GetApplications returns all applications of the current user.
+// GetApplications godoc
+// @Summary Get Applications
+// @Description Get all applications from current user
+// @ID get-application
+// @Tags Application
+// @Accept json,mpfd
+// @Produce json
+// @Success 200 {array} model.Application
+// @Failure 500 ""
+// @Security BasicAuth
+// @Router /application [get]
 func (h *ApplicationHandler) GetApplications(ctx *gin.Context) {
 	user := authentication.GetUser(ctx)
 	if user == nil {
@@ -146,7 +168,18 @@ func (h *ApplicationHandler) GetApplications(ctx *gin.Context) {
 	ctx.JSON(http.StatusOK, &applications)
 }
 
-// GetApplication returns the application with the specified ID.
+// GetApplication godoc
+// @Summary Get Application
+// @Description Get single application by ID
+// @ID get-application-id
+// @Tags Application
+// @Accept json,mpfd
+// @Produce json
+// @Param id path int true "ID of the application"
+// @Success 200 {object} model.Application
+// @Failure 404,403 ""
+// @Security BasicAuth
+// @Router /application/{id} [get]
 func (h *ApplicationHandler) GetApplication(ctx *gin.Context) {
 	application, err := getApplication(ctx, h.DB)
 	if err != nil {
@@ -167,7 +200,18 @@ func (h *ApplicationHandler) GetApplication(ctx *gin.Context) {
 	ctx.JSON(http.StatusOK, &application)
 }
 
-// DeleteApplication deletes an application with a certain ID.
+// DeleteApplication godoc
+// @Summary Delete Application
+// @Description Delete an application
+// @ID delete-application-id
+// @Tags Application
+// @Accept json,mpfd
+// @Produce json
+// @Param id path int true "ID of the application"
+// @Success 200 ""
+// @Failure 500,404,403 ""
+// @Security BasicAuth
+// @Router /application/{id} [delete]
 func (h *ApplicationHandler) DeleteApplication(ctx *gin.Context) {
 	application, err := getApplication(ctx, h.DB)
 	if err != nil {
@@ -185,7 +229,21 @@ func (h *ApplicationHandler) DeleteApplication(ctx *gin.Context) {
 	ctx.JSON(http.StatusOK, gin.H{})
 }
 
-// UpdateApplication updates an application with a certain ID.
+// UpdateApplication godoc
+// @Summary Update Application
+// @Description Update an application
+// @ID put-application-id
+// @Tags Application
+// @Accept json,mpfd
+// @Produce json
+// @Param id path int true "ID of the application"
+// @Param name query string false "New name for the application"
+// @Param refresh_token query bool false "Generate new refresh token for the application"
+// @Param strict_compatability query bool false "Whether to use strict compataibility mode"
+// @Success 200 ""
+// @Failure 500,404,403 ""
+// @Security BasicAuth
+// @Router /application/{id} [put]
 func (h *ApplicationHandler) UpdateApplication(ctx *gin.Context) {
 	application, err := getApplication(ctx, h.DB)
 	if err != nil {
diff --git a/internal/api/health.go b/internal/api/health.go
index 7c43159..b9b42ad 100644
--- a/internal/api/health.go
+++ b/internal/api/health.go
@@ -11,7 +11,15 @@ type HealthHandler struct {
 	DB Database
 }
 
-// Health returns the health status of the server.
+// Health godoc
+// @Summary Health of the application
+// @ID get-health
+// @Tags Health
+// @Accept json,mpfd
+// @Produce json
+// @Success 200 ""
+// @Failure 500 ""
+// @Router /health [get]
 func (h *HealthHandler) Health(ctx *gin.Context) {
 	if err := h.DB.Health(); err != nil {
 		ctx.AbortWithError(http.StatusInternalServerError, err)
diff --git a/internal/api/notification.go b/internal/api/notification.go
index 064c716..c04df4d 100644
--- a/internal/api/notification.go
+++ b/internal/api/notification.go
@@ -29,7 +29,21 @@ type NotificationHandler struct {
 	DP NotificationDispatcher
 }
 
-// CreateNotification is used to create a new notification for a user.
+// CreateNotification godoc
+// @Summary Create a Notification
+// @Description Creates a new notification for the given channel
+// @ID post-message
+// @Tags Application
+// @Accept json,mpfd
+// @Produce json
+// @Param message query string true "The message to send"
+// @Param title query string false "The title to send"
+// @Param priority query integer false "The notifications priority"
+// @Param extras query model.NotificationExtras false "JSON object with additional information"
+// @Param token query string true "Channels token, can also be provieded in the header"
+// @Success 200 {object} model.Notification
+// @Failure 500,404,403 ""
+// @Router /message [post]
 func (h *NotificationHandler) CreateNotification(ctx *gin.Context) {
 	var notification model.Notification
 
@@ -58,7 +72,18 @@ func (h *NotificationHandler) CreateNotification(ctx *gin.Context) {
 	ctx.JSON(http.StatusOK, &notification)
 }
 
-// DeleteNotification is used to delete (or mark as deleted) a notification for a user
+// DeleteNotification godoc
+// @Summary Delete a Notification
+// @Description Informs the channel that the notification is deleted
+// @ID deöete-message-id
+// @Tags Application
+// @Accept json,mpfd
+// @Produce json
+// @Param message_id path string true "ID of the message to delete"
+// @Param token query string true "Channels token, can also be provieded in the header"
+// @Success 200 ""
+// @Failure 500,404,403 ""
+// @Router /message/{message_id} [DELETE]
 func (h *NotificationHandler) DeleteNotification(ctx *gin.Context) {
 	application := authentication.GetApplication(ctx)
 	id, err := getMessageID(ctx)
diff --git a/internal/api/user.go b/internal/api/user.go
index 65e5159..385c443 100644
--- a/internal/api/user.go
+++ b/internal/api/user.go
@@ -112,8 +112,22 @@ func (h *UserHandler) updateUser(ctx *gin.Context, u *model.User, updateUser mod
 	return nil
 }
 
-// CreateUser creates a new user.
+// CreateUser godoc
 // This method assumes that the requesting user has privileges.
+// @Summary Create a User
+// @Description Creates a new user
+// @ID post-user
+// @Tags User
+// @Accept json,mpfd
+// @Produce json
+// @Param name query string true "Name of the user"
+// @Param is_admin query bool false "Whether to set the user as admin or not"
+// @Param matrix_id query string true "Matrix ID of the user in the format @user:domain.tld"
+// @Param password query string true "The users password"
+// @Success 200 {object} model.ExternalUser
+// @Failure 500,404,403 ""
+// @Security BasicAuth
+// @Router /user [post]
 func (h *UserHandler) CreateUser(ctx *gin.Context) {
 	var createUser model.CreateUser
 
@@ -137,8 +151,18 @@ func (h *UserHandler) CreateUser(ctx *gin.Context) {
 	ctx.JSON(http.StatusOK, user.IntoExternalUser())
 }
 
-// GetUsers returns all users.
+// GetUsers godoc
 // This method assumes that the requesting user has privileges.
+// @Summary Get Users
+// @Description Gets a list of all users
+// @ID get-user
+// @Tags User
+// @Accept json,mpfd
+// @Produce json
+// @Success 200 {object} []model.ExternalUser
+// @Failure 500 ""
+// @Security BasicAuth
+// @Router /user [get]
 func (h *UserHandler) GetUsers(ctx *gin.Context) {
 	users, err := h.DB.GetUsers()
 	if success := successOrAbort(ctx, http.StatusInternalServerError, err); !success {
@@ -154,8 +178,19 @@ func (h *UserHandler) GetUsers(ctx *gin.Context) {
 	ctx.JSON(http.StatusOK, &externalUsers)
 }
 
-// GetUser returns the user with the specified ID.
+// GetUser godoc
 // This method assumes that the requesting user has privileges.
+// @Summary Get User
+// @Description Gets single user
+// @ID get-user-id
+// @Tags User
+// @Accept json,mpfd
+// @Produce json
+// @Param id path integer true "The users id"
+// @Success 200 {object} model.ExternalUser
+// @Failure 500,404 ""
+// @Security BasicAuth
+// @Router /user/{id} [get]
 func (h *UserHandler) GetUser(ctx *gin.Context) {
 	user, err := getUser(ctx, h.DB)
 	if err != nil {
@@ -165,9 +200,19 @@ func (h *UserHandler) GetUser(ctx *gin.Context) {
 	ctx.JSON(http.StatusOK, user.IntoExternalUser())
 }
 
-// DeleteUser deletes a user with a certain ID.
-//
+// DeleteUser godoc
 // This method assumes that the requesting user has privileges.
+// @Summary Delete User
+// @Description Delete user
+// @ID delete-user-id
+// @Tags User
+// @Accept json,mpfd
+// @Produce json
+// @Param id path integer true "The users id"
+// @Success 200 ""
+// @Failure 500,404 ""
+// @Security BasicAuth
+// @Router /user/{id} [delete]
 func (h *UserHandler) DeleteUser(ctx *gin.Context) {
 	user, err := getUser(ctx, h.DB)
 	if err != nil {
@@ -194,10 +239,24 @@ func (h *UserHandler) DeleteUser(ctx *gin.Context) {
 	ctx.JSON(http.StatusOK, gin.H{})
 }
 
-// UpdateUser updates a user with a certain ID.
-//
+// UpdateUser godoc
 // This method assumes that the requesting user has privileges. If users can later update their own user, make sure they
 // cannot give themselves privileges.
+// @Summary Update User
+// @Description Update user information
+// @ID put-user-id
+// @Tags User
+// @Accept json,mpfd
+// @Produce json
+// @Param id path integer true "The users id"
+// @Param name query string true "Name of the user"
+// @Param is_admin query bool false "Whether to set the user as admin or not"
+// @Param matrix_id query string true "Matrix ID of the user in the format @user:domain.tld"
+// @Param password query string true "The users password"
+// @Success 200 ""
+// @Failure 500,404,400 ""
+// @Security BasicAuth
+// @Router /user/{id} [put]
 func (h *UserHandler) UpdateUser(ctx *gin.Context) {
 	user, err := getUser(ctx, h.DB)
 	if err != nil {
diff --git a/internal/model/notification.go b/internal/model/notification.go
index fc46221..6239236 100644
--- a/internal/model/notification.go
+++ b/internal/model/notification.go
@@ -21,3 +21,6 @@ type DeleteNotification struct {
 	ID   string    `json:"id" form:"id"`
 	Date time.Time `json:"date"`
 }
+
+// NotificationExtras is need to document Notification.Extras in a format that the tool can read.
+type NotificationExtras map[string]interface{}