diff --git a/docs/.vitepress/config.mts b/docs/.vitepress/config.mts
index 716c1ef..6429337 100644
--- a/docs/.vitepress/config.mts
+++ b/docs/.vitepress/config.mts
@@ -9,8 +9,8 @@ export default defineConfig({
     // https://vitepress.dev/reference/default-theme-config
     nav: [
       { text: 'Home', link: '/' },
-      { text: 'API', link: '/api' },
-      { text: 'Examples', link: '/examples' }
+      { text: 'API', link: 'https://jsr.io/@planetarium/chrono-sdk/doc' },
+      { text: 'Examples', link: '/developer/examples' }
     ],
 
     sidebar: [
@@ -40,7 +40,7 @@ export default defineConfig({
         items: [
           {
             text: 'API',
-            link: '/developer/api',
+            link: 'https://jsr.io/@planetarium/chrono-sdk/doc',
           },
           {
             text: 'Examples',
diff --git a/docs/developer/api.md b/docs/developer/api.md
deleted file mode 100644
index 1e50393..0000000
--- a/docs/developer/api.md
+++ /dev/null
@@ -1,200 +0,0 @@
----
-outline: deep
----
-
-# Wallet API (i.e., `window.chronoWallet`)
-
-This page describes the specifications and issues of the Chrono Wallet API.
-
-Chrono Wallet communicates with browser extensions through a global variable called `window.chronoWallet` to provide an interface to do things like signing. This is similar to how MetaMask provides a JSON-RPC API through `window.ethereum`.
-
-## `connect`
-
-### Signature
-
-```typescript
-function connect(): Promise<void>;
-```
-
-### Parameters
-
-There is no parameter.
-
-### Returns
-
-It doesn't return.
-
-### Examples
-
-```typescript
-await window.chronoWallet.connect();
-```
-
-## `isConnected`
-
-### Signature
-
-```typescript
-function isConnected(): Promise<boolean>;
-```
-
-### Parameters
-
-There is no parameter.
-
-### Returns
-
-It returns whether it is connected or not.
-
-### Examples
-
-```typescript
-const isConnected = await window.chronoWallet.isConnected();
-```
-
-## `listAccounts`
-
-### Signature
-
-```typescript
-function listAccounts(): Promise<{
-    address: Address;
-}[]>;
-```
-
-### Parameters
-
-There is no parameter.
-
-### Returns
-
-It returns an array of objects. Each object has `activated` and `address` properties.
-
-### Examples
-
-```typescript
-import { Address } from "@planetarium/account";
-
-const accounts = await window.chronoWallet.listAccounts();
-const addresses: Address[] = accounts.map(x => x.address);
-```
-
-## `getPublicKey`
-
-### Signature
-
-```typescript
-function getPublicKey(address: string): Promise<PublicKey>;
-```
-
-### Parameters
-
-- `address`: A hexadecimal string. The content must be an address of a public key to get, compatible for [ERC-55](https://eips.ethereum.org/EIPS/eip-55).
-
-### Returns
-
-It returns a hexadecimal string, public key.
-
-### Examples
-
-```typescript
-import { PublicKey } from "@planetarium/account";
-
-const publicKey: PublicKey = await window.chronoWallet.getPublicKey("0x2cBaDf26574756119cF705289C33710F27443767");
-```
-
-## `sign`
-
-Sign a new transaction with an action. If you want to configure properties like `nonce`, `timestamp`, you should use [`window.chronoWallet.signTx`](#window-chronowallet-signtx)
-
-### Signature
-
-```typescript
-function sign(signer: Address, action: Value): Promise<Buffer>;
-```
-
-### Parameters
-
-- `signer`: A hexadecimal string. The content must be the signer's address compatible for [ERC-55](https://eips.ethereum.org/EIPS/eip-55).
-- `action`: A hexadecimal string. The content should be encoded action.
-
-### Returns
-
-It returns a hexadecimal string, encoded signed transaction.
-
-### Examples
-
-```typescript
-import { Address } from "@planetarium/account";
-import { encode, BencodexDictionary } from "@planetarium/bencodex";
-import { Buffer } from "buffer";
-
-const signer = Address.fromHex("0x2cBaDf26574756119cF705289C33710F27443767");
-const action = new BencodexDictionary([
-    ["type_id", "daily_reward7"],
-    ["values", new BencodexDictionary([
-        ["a", Buffer.from("DE3873DB166647Cc3538ef64EAA8A0cCFD51B9fE", "hex")]
-    ])]
-]);
-
-const signedTxBytes = await window.chronoWallet.sign(signer, action);
-```
-
-## `signTx`
-
-### Signature
-
-```typescript
-function signTx(signer: Address, unsignedTx: UnsignedTx): Promise<Buffer>;
-```
-
-### Parameters
-
-- `signer`: A hexadecimal string. The content must be the signer's address compatible for [ERC-55](https://eips.ethereum.org/EIPS/eip-55).
-- `unsignedTx`: A hexadecimal string. The content should be encoded unsigned transaction.
-
-### Returns
-
-It returns a hexadecimal string, encoded signed transaction.
-
-### Examples
-
-```typescript
-import { type UnsignedTx, encodeUnsignedTx } from "@planetarium/tx";
-import { Address } from "@planetarium/account";
-import { encode, BencodexDictionary } from "@planetarium/bencodex";
-import { Buffer } from "buffer";
-import { Decimal } from "decimal.js";
-
-const signer = Address.fromHex("0x2cBaDf26574756119cF705289C33710F27443767");
-const publicKey = await window.chronoWallet.getPublicKey(signer);
-const action = new BencodexDictionary([
-    ["type_id", "daily_reward7"],
-    ["values", new BencodexDictionary([
-        ["a", Buffer.from("DE3873DB166647Cc3538ef64EAA8A0cCFD51B9fE", "hex")]
-    ])]
-]);
-
-const unsignedTx = {
-    signer: signer.toBytes(),
-    actions: [action],
-    updatedAddresses: new Set([]),
-    nonce: 1n,
-    genesisHash,
-    publicKey: publicKey.toBytes("uncompressed"),
-    timestamp: new Date(),
-    maxGasPrice: {
-        currency: {
-            ticker: "Mead",
-            decimalPlaces: 18,
-            minters: null,
-            totalSupplyTrackable: false,
-            maximumSupply: null,
-        },
-        rawValue: BigInt(Decimal.pow(10, 18).toString())
-    },
-    gasLimit,
-};
-
-const signedTxBytes = await window.chronoWallet.sign(signer, unsignedTx);
-```
diff --git a/packages/chrono-sdk/jsr.json b/packages/chrono-sdk/jsr.json
index e6e047e..182cb21 100644
--- a/packages/chrono-sdk/jsr.json
+++ b/packages/chrono-sdk/jsr.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://jsr.io/schema/config-file.v1.json",
   "name": "@planetarium/chrono-sdk",
-  "version": "0.2.0",
+  "version": "0.3.0",
   "exports": {
     ".": "./src/index.ts",
     "./hooks": "./src/hooks/index.ts"