diff --git a/lib/ssb_bfe.ex b/lib/ssb_bfe.ex
index 608e9ad..1933c63 100644
--- a/lib/ssb_bfe.ex
+++ b/lib/ssb_bfe.ex
@@ -15,4 +15,26 @@ defmodule SsbBfe do
   def hello do
     :world
   end
+
+  def encode(value) when is_bitstring(value) do
+    cond do
+      String.starts_with?(value, "@") ->
+        SsbBfe.Encoder.encode_feed(value)
+
+      String.starts_with?(value, "%") ->
+        SsbBfe.Encoder.encode_msg(value)
+
+      String.starts_with?(value, "&") ->
+        SsbBfe.Encoder.encode_blob(value)
+
+      String.ends_with?(value, ".sig.ed25519") ->
+        SsbBfe.Encoder.encode_sig(value)
+
+      String.ends_with?(value, [".box", ".box2"]) ->
+        SsbBfe.Encoder.encode_box(value)
+
+      true ->
+        SsbBfe.Encoder.encode_str(value)
+    end
+  end
 end
diff --git a/lib/ssb_bfe/encoder.ex b/lib/ssb_bfe/encoder.ex
index da5ca7b..39174c0 100644
--- a/lib/ssb_bfe/encoder.ex
+++ b/lib/ssb_bfe/encoder.ex
@@ -1,5 +1,5 @@
 # might be good to use a multiclause function for the `encode` function
-# - use the `where` conditional guard with e.g. `is_number` 
+# - use the `when` conditional guard with e.g. `is_number` 
 
 defmodule SsbBfe.Encoder do
   # Extract the base64 substring from a sigil-link and decode it.