diff --git a/docs/.vitepress/config.mjs b/docs/.vitepress/config.mjs
index fe6adae..eceea8a 100644
--- a/docs/.vitepress/config.mjs
+++ b/docs/.vitepress/config.mjs
@@ -15,6 +15,7 @@ export default {
         items: [
           { text: 'Getting Started', link: '/guide/getting-started' },
           { text: 'Installation', link: '/guide/installation' },
+          { text: 'Usage', link: '/guide/usage' },
           { text: 'Configuration', link: '/guide/configuration' }
         ]
       }],
diff --git a/docs/api/index.md b/docs/api/index.md
index 5998622..9d61eb0 100644
--- a/docs/api/index.md
+++ b/docs/api/index.md
@@ -4,26 +4,57 @@ The SoroSave SDK exports the following modules:
 
 ## Modules
 
-- [`SoroSaveClient`](/api/client) - Main client class
-- [`Types`](/api/types) - TypeScript interfaces and types
-- [`Utils`](/api/utils) - Utility functions
+- [`SoroSaveClient`](/api/client) — Main client class for contract interaction
+- [`Types`](/api/types) — TypeScript interfaces, types, and enums
+- [`Utils`](/api/utils) — Utility functions for formatting and calculations
 
-## Usage
+## Quick Import
 
 ```typescript
+// Core client
 import { SoroSaveClient } from '@sorosave/sdk';
-import type { CreateGroupParams, SavingsGroup } from '@sorosave/sdk';
+
+// Types
+import type { CreateGroupParams, SavingsGroup, RoundInfo, SoroSaveConfig } from '@sorosave/sdk';
+
+// Enums
+import { GroupStatus } from '@sorosave/sdk';
+
+// Utilities
+import { formatAmount, parseAmount, getStatusLabel } from '@sorosave/sdk';
+
+// React hooks
+import { SoroSaveProvider, useGroup, useContribute, useMemberGroups } from '@sorosave/react';
 ```
 
-## Client Methods
+## Client Methods Overview
+
+### Write Methods (Transactions)
+
+| Method | Description | Access |
+|--------|-------------|--------|
+| `createGroup()` | Create a new savings group | Anyone |
+| `joinGroup()` | Join an existing group | Anyone |
+| `leaveGroup()` | Leave a group (while forming) | Members |
+| `startGroup()` | Start the savings cycle | Admin |
+| `contribute()` | Contribute to current round | Members |
+| `distributePayout()` | Distribute pot to recipient | Anyone |
+| `pauseGroup()` | Pause a group | Admin |
+| `resumeGroup()` | Resume a paused group | Admin |
+| `raiseDispute()` | Raise a dispute | Members |
+
+### Read Methods (Queries)
+
+| Method | Description | Returns |
+|--------|-------------|---------|
+| `getGroup()` | Get group details | `SavingsGroup` |
+| `getRoundStatus()` | Get round information | `RoundInfo` |
+| `getMemberGroups()` | Get all groups for a member | `number[]` |
+
+### Batch & Utility Methods
 
 | Method | Description |
 |--------|-------------|
-| `createGroup()` | Create a new savings group |
-| `joinGroup()` | Join an existing group |
-| `leaveGroup()` | Leave a group (while forming) |
-| `startGroup()` | Start the savings cycle |
-| `contribute()` | Make a contribution |
-| `distribute()` | Distribute funds to recipient |
-| `getGroup()` | Get group details |
-| `getGroups()` | List all groups |
+| `createBatchBuilder()` | Create a batch operation builder |
+| `buildBatchTransaction()` | Build a transaction from batch operations |
+| `setWalletAdapter()` | Set or change the wallet adapter |
diff --git a/docs/guide/usage.md b/docs/guide/usage.md
new file mode 100644
index 0000000..73e0166
--- /dev/null
+++ b/docs/guide/usage.md
@@ -0,0 +1,219 @@
+# Usage Guide
+
+Complete guide to using the SoroSave SDK for building savings group applications.
+
+## Initializing the Client
+
+```typescript
+import { SoroSaveClient } from '@sorosave/sdk';
+
+const client = new SoroSaveClient({
+  rpcUrl: 'https://soroban-testnet.stellar.org',
+  contractId: 'CBQ...YOUR_CONTRACT_ID',
+  networkPassphrase: 'Test SDF Network ; September 2015'
+});
+```
+
+## Using with React
+
+The SDK provides React hooks for easy frontend integration:
+
+```tsx
+import { SoroSaveProvider, useGroup, useContribute, useMemberGroups } from '@sorosave/react';
+
+function App() {
+  return (
+    <SoroSaveProvider config={{
+      contractId: 'CBQ...YOUR_CONTRACT_ID',
+      rpcUrl: 'https://soroban-testnet.stellar.org',
+      networkPassphrase: 'Test SDF Network ; September 2015'
+    }}>
+      <Dashboard />
+    </SoroSaveProvider>
+  );
+}
+```
+
+### useGroup — Fetch Group Data
+
+```tsx
+function GroupCard({ groupId }: { groupId: number }) {
+  const { group, loading, error, refetch } = useGroup(groupId);
+
+  if (loading) return <Spinner />;
+  if (error) return <ErrorBanner message={error.message} />;
+  if (!group) return <EmptyState message="Group not found" />;
+
+  return (
+    <div className="card">
+      <h2>{group.name}</h2>
+      <p>Members: {group.members.length}/{group.maxMembers}</p>
+      <p>Round: {group.currentRound}/{group.totalRounds}</p>
+      <p>Status: {group.status}</p>
+      <button onClick={refetch}>Refresh</button>
+    </div>
+  );
+}
+```
+
+### useContribute — Make Contributions
+
+```tsx
+function ContributeButton({ groupId, member }: Props) {
+  const { contribute, loading, error } = useContribute();
+
+  const handleContribute = async () => {
+    try {
+      await contribute({ member, groupId });
+      toast.success('Contribution successful!');
+    } catch (err) {
+      toast.error(err.message);
+    }
+  };
+
+  return (
+    <button onClick={handleContribution} disabled={loading}>
+      {loading ? 'Contributing...' : 'Contribute'}
+    </button>
+  );
+}
+```
+
+### useMemberGroups — List Member's Groups
+
+```tsx
+function MyGroups({ address }: { address: string }) {
+  const { groupIds, loading, refetch } = useMemberGroups(address);
+
+  return (
+    <div>
+      <h3>My Groups ({groupIds.length})</h3>
+      {groupIds.map(id => <GroupCard key={id} groupId={id} />)}
+      <button onClick={refetch}>Refresh</button>
+    </div>
+  );
+}
+```
+
+## Wallet Integration
+
+### Freighter Wallet
+
+```typescript
+import { SoroSaveClient } from '@sorosave/sdk';
+import { FreighterAdapter } from '@sorosave/sdk';
+
+const wallet = new FreighterAdapter();
+const client = new SoroSaveClient(config, wallet);
+
+// Transactions will be automatically signed via Freighter
+const tx = await client.createGroup(params, sourceAddress);
+```
+
+### Custom Wallet Adapter
+
+```typescript
+import { WalletAdapter } from '@sorosave/sdk';
+
+class MyWalletAdapter implements WalletAdapter {
+  async signTransaction(tx: Transaction, passphrase: string): Promise<Transaction> {
+    // Your custom signing logic
+    return signedTx;
+  }
+
+  async getPublicKey(): Promise<string> {
+    return 'G...';
+  }
+}
+```
+
+## Batch Operations
+
+The SDK supports batching multiple operations into a single transaction:
+
+```typescript
+const batch = client.createBatchBuilder();
+
+// Add multiple operations
+batch.addJoinGroup(member1, groupId);
+batch.addJoinGroup(member2, groupId);
+batch.addJoinGroup(member3, groupId);
+
+// Build and submit as one transaction
+const tx = await client.buildBatchTransaction(sourceAddress, batch);
+```
+
+## Utility Functions
+
+```typescript
+import {
+  formatAmount,
+  parseAmount,
+  getStatusLabel,
+  shortenAddress,
+  calculatePotSize,
+  getPayoutRound
+} from '@sorosave/sdk';
+
+// Format token amounts for display
+formatAmount(1000000000n, 7);  // "100"
+
+// Parse user input to raw amount
+parseAmount("100", 7);  // 1000000000n
+
+// Get readable status
+getStatusLabel(group.status);  // "Active"
+
+// Shorten addresses for UI
+shortenAddress('GABC...XYZ');  // "GABC...WXYZ"
+
+// Calculate total pot
+calculatePotSize(1000000000n, 5);  // 5000000000n
+
+// Find when a member gets paid
+getPayoutRound(group.payoutOrder, memberAddress);  // 3
+```
+
+## Error Handling
+
+```typescript
+try {
+  const tx = await client.contribute(member, groupId, sourceAddress);
+  const result = await server.submitTransaction(tx);
+} catch (error) {
+  if (error.message.includes('Simulation failed')) {
+    console.error('Transaction simulation failed:', error);
+  } else if (error.message.includes('insufficient')) {
+    console.error('Insufficient balance');
+  } else {
+    console.error('Unexpected error:', error);
+  }
+}
+```
+
+## CLI Usage
+
+The SDK includes a command-line interface:
+
+```bash
+# Install globally
+npm install -g @sorosave/sdk
+
+# Create a group
+sorosave create-group --name "My Group" --amount 100 --members 5
+
+# Join a group
+sorosave join-group --group-id 1 --member "G..."
+
+# Contribute
+sorosave contribute --group-id 1 --member "G..."
+
+# Query group info
+sorosave get-group --group-id 1
+```
+
+## Next Steps
+
+- [API Reference](/api/) — Complete method documentation
+- [Configuration](/guide/configuration) — Advanced configuration
+- [Tutorial: Group Lifecycle](/tutorial/group-lifecycle) — Full walkthrough