diff --git a/internal/server/request_get.go b/internal/server/request_get.go
index 25b20e8..c16739f 100644
--- a/internal/server/request_get.go
+++ b/internal/server/request_get.go
@@ -5,6 +5,7 @@ import (
 	"github.com/darmiel/yaxc/internal/common"
 	"github.com/gofiber/fiber/v2"
 	"github.com/muesli/termenv"
+	"net/http"
 	"strings"
 )
 
@@ -13,7 +14,7 @@ func (s *yAxCServer) handleGetAnywhere(ctx *fiber.Ctx) (err error) {
 
 	// validate path
 	if !common.ValidateAnywherePath(path) {
-		return ctx.Status(400).SendString("ERROR: Invalid path")
+		return fiber.NewError(http.StatusNotAcceptable, "invalid anywhere-path")
 	}
 
 	var res string
@@ -24,7 +25,7 @@ func (s *yAxCServer) handleGetAnywhere(ctx *fiber.Ctx) (err error) {
 	// Encryption
 	if q := ctx.Query("secret"); q != "" {
 		if !s.EnableEncryption {
-			return errEncryptionNotEnabled
+			return fiber.NewError(http.StatusLocked, "encryption is currently not enabled on this server")
 		}
 		// do not fail on error
 		if encrypt, err := common.Decrypt(res, q); err == nil {
diff --git a/internal/server/request_post.go b/internal/server/request_post.go
index f4c5a40..3fe8916 100644
--- a/internal/server/request_post.go
+++ b/internal/server/request_post.go
@@ -7,6 +7,7 @@ import (
 	"github.com/gofiber/fiber/v2"
 	"github.com/gofiber/fiber/v2/utils"
 	"github.com/muesli/termenv"
+	"net/http"
 	"strings"
 	"time"
 )
@@ -31,13 +32,13 @@ func (s *yAxCServer) handlePostAnywhereWithHash(ctx *fiber.Ctx) (err error) {
 func (s *yAxCServer) setAnywhereWithHash(ctx *fiber.Ctx, path, hash string) (err error) {
 	// validate path
 	if !common.ValidateAnywherePath(path) {
-		return ctx.Status(400).SendString("ERROR: Invalid path")
+		return fiber.NewError(http.StatusNotAcceptable, "invalid anywhere-path")
 	}
 
 	// Read content
 	bytes := ctx.Body()
 	if s.MaxBodyLength > 0 && len(bytes) > s.MaxBodyLength {
-		return s.errBodyLen
+		return fiber.NewError(http.StatusRequestEntityTooLarge, "exceeded max body length")
 	}
 	content := string(bytes)
 
@@ -45,26 +46,26 @@ func (s *yAxCServer) setAnywhereWithHash(ctx *fiber.Ctx, path, hash string) (err
 	ttl := s.DefaultTTL
 	if q := ctx.Query("ttl"); q != "" {
 		if ttl, err = time.ParseDuration(q); err != nil {
-			return
+			return fiber.NewError(http.StatusUnprocessableEntity, "invalid ttl. (examples: 10s, 5m, 1h)")
 		}
 	}
 
 	// Encryption
 	if q := ctx.Query("secret"); q != "" {
 		if !s.EnableEncryption {
-			return errEncryptionNotEnabled
+			return fiber.NewError(http.StatusLocked, "encryption is currently not enabled on this server")
 		}
 		// fail on error
 		encrypt, err := common.Encrypt(content, q)
 		if err != nil {
-			return err
+			return fiber.NewError(http.StatusInternalServerError, "error encrypting content: "+err.Error())
 		}
 		content = string(encrypt)
 	}
 
 	// Check if ttl is valid
 	if (s.MinTTL != 0 && s.MinTTL > ttl) || (s.MaxTTL != 0 && s.MaxTTL < ttl) {
-		return ctx.Status(400).SendString("ERROR: TTL out of range")
+		return fiber.NewError(http.StatusRequestedRangeNotSatisfiable, "ttl out of range")
 	}
 
 	// generate hash
diff --git a/internal/server/type.go b/internal/server/type.go
index 6557cf8..d65d050 100644
--- a/internal/server/type.go
+++ b/internal/server/type.go
@@ -45,15 +45,13 @@ type YAxCConfig struct {
 
 type yAxCServer struct {
 	*YAxCConfig
-	App        *fiber.App
-	Backend    Backend
-	errBodyLen error
+	App     *fiber.App
+	Backend Backend
 }
 
 func NewServer(cfg *YAxCConfig) (s *yAxCServer) {
 	s = &yAxCServer{
 		YAxCConfig: cfg,
-		errBodyLen: errors.New("exceeded max body length"),
 	}
 
 	// backend
diff --git a/swagger.yml b/swagger.yml
new file mode 100644
index 0000000..925221e
--- /dev/null
+++ b/swagger.yml
@@ -0,0 +1,68 @@
+swagger: "2.0"
+
+info:
+  description: "YAxC - Yet Another Cross Clipboard"
+  version: "1.1.0"
+  title: "YAxC"
+host: "yaxc.d2a.io"
+basePath: "/"
+
+tags:
+  - name: "{anywhere}"
+    description: "Public Clipboard Name"
+
+schemes:
+  - "https"
+  - "http"
+
+paths:
+  /{anywhere}:
+    post:
+      tags:
+        - "{anywhere}"
+      summary: Post new clipboard data
+      consumes:
+        - 'text/plain'
+      produces:
+        - 'text/plain'
+      parameters:
+        - in: "secret"
+          name: "Encryption Password"
+          description: "Encrypts the content with the password (server-side!)"
+          required: false
+        - in: "ttl"
+          name: "TTL"
+          description: "Waiting time after which the content is deleted"
+      responses:
+        "200":
+          description: "OK"
+        "406":
+          description: "Invalid Path"
+        "413":
+          description: "Body too large"
+        "416":
+          description: "TTL out of range"
+        "422":
+          description: "Invalid TTL. (Examples: 10s, 5m, 1h)"
+        "423":
+          description: "Encryption password was specified, but encryption is not enabled on the server"
+        "500":
+          description: "Intenral server error; e.g. Encryption failed (server-side)"
+    get:
+      tags:
+        - "{anywhere}"
+      summary: Get clipboard data
+      produces:
+        - 'text/plain'
+      parameters:
+        - in: "secret"
+          name: "Encryption Password"
+          description: "Decrypts the contents with the password (server-side!)"
+          required: false
+      responses:
+        "200":
+          description: "OK"
+        "406":
+          description: "Invalid Path"
+        "423":
+          description: "Encryption password was specified, but encryption is not enabled on the server"
\ No newline at end of file