diff --git a/README.md b/README.md
index 766de4fa..0457ade0 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,77 @@ TODO:
 
 ## Implemented specs & features
 
-TODO:
+- **✓** Implemented
+- **✕** Missing node crypto support
+- **◯** TODO
+
+---
+
+- ◯ JWKS abstraction
+- ◯ JWE abstraction
+- ✓ JWT sign/verify
+- ◯ JWT encrypt/decrypt
+
+| JWK Key Types | |
+| -- | -- |
+| RSA | ✓ |
+| EC | ✓ |
+| oct | ✓ |
+
+| JWS Algorithms | |
+| -- | -- |
+| RS256 | ✓ |
+| RS384 | ✓ |
+| RS512 | ✓ |
+| PS256 | ✓ |
+| PS384 | ✓ |
+| PS512 | ✓ |
+| ES256 | ✓ |
+| ES384 | ✓ |
+| ES512 | ✓ |
+| HS256 | ✓ |
+| HS384 | ✓ |
+| HS512 | ✓ |
+
+| JWS Serializations | |
+| -- | -- |
+| Compact | ✓ |
+| General JSON | ✓ |
+| Flattened JSON  | ✓ |
+
+| JWE Key Wrapping Algorithms | |
+| -- | -- |
+| A128KW | ✓ |
+| A192KW | ✓ |
+| A256KW | ✓ |
+| A128GCMKW | ✓ |
+| A192GCMKW | ✓ |
+| A256GCMKW | ✓ |
+| RSA-OAEP | ✓ |
+| RSA-OAEP-256 | ✕ |
+| RSA1_5 | ✓ |
+| PBES2-HS256+A128KW | ◯ |
+| PBES2-HS384+A192KW | ◯ |
+| PBES2-HS512+A256KW | ◯ |
+| ECDH-ES | ◯ |
+| ECDH-ES+A128KW | ◯ |
+| ECDH-ES+A192KW | ◯ |
+| ECDH-ES+A256KW | ◯ |
+
+| JWE Serializations | |
+| -- | -- |
+| Compact | ◯ |
+| General JSON | ◯ |
+| Flattened JSON  | ◯ |
+
+| JWE Content Encryption Algorithms | |
+| -- | -- |
+| A128GCM | ✓ |
+| A192GCM | ✓ |
+| A256GCM | ✓ |
+| A128CBC-HS256 | ✓ |
+| A192CBC-HS384 | ✓ |
+| A256CBC-HS512 | ✓ |
 
 Missing a feature? - If it wasn't already discussed before, [ask for it][suggest-feature].  
 Found a bug? - [report it][bug].