diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..fec2801
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,35 @@
+
+declare namespace codec {
+  interface CodecEncoder {
+    encode: (val: any) => any;
+    decode: (val: any) => any;
+    buffer: boolean
+    type: string
+  }
+
+  interface CodecOptions {
+    keyEncoding?: string | CodecEncoder
+    valueEncoding?: string | CodecEncoder
+  }
+
+  interface Codec {
+    encodeKey(key: any, opts?: codec.CodecOptions, batchOpts?: codec.CodecOptions): any;
+    encodeValue(value: any, opts?: codec.CodecOptions, batchOpts?: codec.CodecOptions): any;
+    decodeKey(key: any, opts?: codec.CodecOptions): any;
+    decodeValue(value: any, opts?: codec.CodecOptions): any;
+    encodeBatch(ops: any, opts?: codec.CodecOptions): any;
+    encodeLtgt(ltgt: any): any;
+    createStreamDecoder(opts: codec.CodecOptions): any;
+    keyAsBuffer(opts?: codec.CodecOptions): any;
+    valueAsBuffer(opts?: codec.CodecOptions): any;
+  }
+
+  interface CodecConstructor {
+    new(options?: CodecOptions): Codec;
+    (options?: CodecOptions): Codec;
+  }
+}
+
+declare const codec: codec.CodecConstructor;
+
+export = codec;
\ No newline at end of file
diff --git a/package.json b/package.json
index 9ca4c66..7b70c59 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,8 @@
   "devDependencies": {
     "tape": "^4.3.0"
   },
+  "main": "index.js",
+  "typings": "index.d.ts",
   "scripts": {
     "test": "make test"
   },