diff --git a/mod.ts b/mod.ts
index 6fd6402..c26c215 100644
--- a/mod.ts
+++ b/mod.ts
@@ -42,6 +42,15 @@ function codecFromCode(code: bigint): Codec {
     throw new TypeError("Unknown algorithm and/or key type");
 }
 
+/**
+ * 
+ * @param key The [`CryptoKey`](https://developer.mozilla.org/en-US/docs/Web/API/CryptoKey) to export.
+ * @returns A [`Promise`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) that fulfills with a string containing the key in a Multikey-compatible format.
+ * 
+ * To export a key, the key must have [`CryptoKey.extractable`](https://developer.mozilla.org/en-US/docs/Web/API/CryptoKey/extractable) set to `true`.
+ * 
+ * Check the library page for a list of supported algorithms.
+ */
 export async function exportMultikey(key: CryptoKey): Promise<string> {
     const codec = codecFromKey(key);
     const keyData = await codec.encode(key);
@@ -55,6 +64,15 @@ export async function exportMultikey(key: CryptoKey): Promise<string> {
     return "z" + multikeyb58;
 }
 
+/**
+ * 
+ * @param input A `string` containing the key in Multikey format.
+ * @returns A [`Promise`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise) that fulfills with a [`CryptoKey`](https://developer.mozilla.org/en-US/docs/Web/API/CryptoKey).
+ * 
+ * Imported keys have [`CryptoKey.extractable`](https://developer.mozilla.org/en-US/docs/Web/API/CryptoKey/extractable) set to `true`.
+ * 
+ * Check the library page for a list of supported algorithms.
+ */
 export async function importMultikey(input: string): Promise<CryptoKey> {
     if (input[0] !== "z") {
         throw new TypeError("Invalid multibase, expected base58btc string");