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# Personal Agent Android App - Build Plan
**Status:** Ready to develop
**Target:** April 15, 2026
**Platform:** Android (Kotlin + Jetpack Compose)
---
## Overview
**Your Personal Agent** on your Android phone:
1. You speak instructions: "Find battery service, budget $200, this week"
2. Agent listens + understands intent
3. Agent autonomously:
- Queries AgentPay marketplace
- Scores options (price, reputation, distance)
- Books appointment
- Locks payment in SmartEscrow
- Sends confirmation
4. You get notification when done
**Zero human intervention after you speak the instruction.**
---
## Tech Stack
```
Frontend:
- Kotlin (Android native)
- Jetpack Compose (UI)
- Material 3 (design system)
- Google Speech-to-Text (voice input)
- TensorFlow Lite (on-device inference)
Backend:
- Node.js (agent logic)
- WebSocket (real-time updates)
- Solana Web3.js (blockchain)
Storage:
- SQLite (local preferences)
- Encrypted SharedPreferences (wallet seed)
- Cloud sync (preferences backup)
APIs:
- Google Speech-to-Text
- x402-agent-pay.com (AgentPay API)
- Solana RPC (blockchain)
```
---
## App Architecture
### Three Main Screens
#### 1. Home Screen
```
┌─────────────────────────────┐
│ 🤖 Your Agent │
│ "Ready to listen..." │
├─────────────────────────────┤
│ 🎤 [LARGE SPEAK BUTTON] │
│ "Say what you need" │
├─────────────────────────────┤
│ Last instruction: │
│ "Find mechanics in Phoenix"│
│ ✅ Completed │
│ 💰 $145 booked │
├─────────────────────────────┤
│ [Preferences] [History] │
│ [Wallet] [Settings] │
└─────────────────────────────┘
```
#### 2. Preferences Screen
```
┌─────────────────────────────┐
│ ⚙️ Agent Preferences │
├─────────────────────────────┤
│ 🚗 Vehicle Services: │
│ Make: Tesla™ Model 3 │
│ Budget: $200 max │
│ Radius: 15 miles │
│ Preferred times: 8am-5pm │
│ │
│ ⚡ EV Charging: │
│ Max price: $0.50/kWh │
│ Preferred networks: EA │
│ │
│ 🛒 Shopping: │
│ Budget: $100-500 │
│ Loyalty: Prime, Costco │
│ │
│ [Save Preferences] │
└─────────────────────────────┘
```
#### 3. History Screen
```
┌─────────────────────────────┐
│ 📋 Agent Activity │
├─────────────────────────────┤
│ ✅ Apr 10, 2:15 PM │
│ "Book battery service" │
│ → Phoenix Battery Tech │
│ Tomorrow 2pm, $145 │
│ [View Details] │
│ │
│ ⏳ Apr 10, 1:30 PM │
│ "Find charging station" │
│ Processing... │
│ [Cancel] │
│ │
│ ✅ Apr 9, 10:00 AM │
│ "Schedule haircut" │
│ → Salon XYZ │
│ Thu 3pm, $35 │
│ [View Details] │
│ │
│ [View All] │
└─────────────────────────────┘
```
---
## Voice Command Examples
### Service Booking
```
User: "Book a mechanic appointment for my Tesla™"
Agent:
✓ Detected intent: Vehicle maintenance
✓ Checking your budget: $200
✓ Searching 15 miles radius
✓ Found 5 mechanics
✓ Top match: Phoenix Battery Tech (4.8★, $145)
✓ Booking for tomorrow 2:00 PM
✓ Payment locked in SmartEscrow
✓ Sending confirmation
User receives: "✅ Appointment booked!"
```
### Shopping
```
User: "Buy me a phone charger, cheap"
Agent:
✓ Detected intent: Shopping
✓ Searching: Amazon, Costco, Best Buy
✓ Found Anker charger: $24.99 → $23.74 (loyalty)
✓ Ordering from Amazon Prime
✓ Delivery: 2 days
✓ Amount locked: $23.74
User receives: "✅ Charger ordered, arriving Apr 12"
```
### Charging
```
User: "Charge my car when it's cheapest today"
Agent:
✓ Detected intent: EV charging
✓ Current battery: 45%
✓ Checking 8 chargers nearby
✓ Best price: Electrify America $0.35/kWh
✓ Scheduling 6:00 PM (off-peak)
✓ Estimated cost: $18.50
User receives: "✅ Charging scheduled for 6pm, $18.50"
```
---
## Development Phases
### Phase 1: MVP (Apr 10-15)
- Android app skeleton
- Voice input working
- Preferences screen
- Mock agent responses
- **Deliverable:** Runnable app on your phone
### Phase 2: Integration (Apr 15-20)
- Connect to AgentPay API
- Real agent backend
- SmartEscrow integration
- Solana wallet setup
- **Deliverable:** Live agent transactions
### Phase 3: Polish (Apr 20-25)
- UI refinement
- Notification system
- Transaction history
- Error handling
- **Deliverable:** Beta-ready app
### Phase 4: Testing (Apr 25-30)
- Real marketplace queries
- Live appointments booked
- Payment settlements
- **Deliverable:** Demo-ready
---
## Code Structure
```kotlin
// MainActivity.kt - Home Screen
class MainActivity : ComponentActivity() {
private val viewModel: AgentViewModel by viewModels()
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContent {
AgentTheme {
AgentHomeScreen(viewModel)
}
}
}
}
// AgentViewModel.kt - Business Logic
class AgentViewModel(
private val agentService: AgentService,
private val speechRecognizer: SpeechRecognizer
) : ViewModel() {
fun startListening() {
speechRecognizer.startListening()
}
fun processCommand(userSpeech: String) {
// 1. Understand intent
val intent = nlp.parseIntent(userSpeech)
// 2. Query marketplace
val options = agentService.discover(intent)
// 3. Score and select
val best = negotiationEngine.selectBest(options)
// 4. Execute booking
agentService.book(best)
// 5. Show confirmation
showNotification("✅ Booked: ${best.name}")
}
}
// AgentService.kt - API Integration
class AgentService(private val apiClient: RetrofitClient) {
suspend fun discover(intent: UserIntent): List<Provider> {
return apiClient.post("/api/agents/discover", intent)
}
suspend fun book(provider: Provider): SmartEscrow {
return apiClient.post("/api/escrow/create", provider)
}
}
// PreferencesScreen.kt - UI
@Composable
fun PreferencesScreen(viewModel: AgentViewModel) {
Column(modifier = Modifier.padding(16.dp)) {
Text("Agent Preferences", style = MaterialTheme.typography.headlineLarge)
VehiclePreferences()
ChargingPreferences()
ShoppingPreferences()
Button(onClick = { viewModel.savePreferences() }) {
Text("Save Preferences")
}
}
}
```
---
## Registration Flow (Your Phone)
### Step 1: Download & Install
- Download from Google Play (when live)
- Or sideload APK for testing
### Step 2: Create Agent Profile
```
1. Open app
2. Tap "Register Agent"
3. Fill form:
- Agent name: "Shawnhvac's Personal Agent"
- Service type: "Personal assistant"
- Description: "Autonomous booking + shopping"
- Wallet: [Create or import Solana wallet]
4. Pay: $9.99/month (first month free)
5. Agent live on marketplace
```
### Step 3: Set Preferences
```
1. Open "Preferences"
2. Configure:
- Your location: Phoenix, AZ
- Budget limits: $200 vehicle, $50 shopping
- Preferred times: 8am-5pm
- Services: Mechanics, shopping, charging
3. Save
```
### Step 4: Start Giving Commands
```
1. Tap big 🎤 button
2. Say: "Find mechanics in Phoenix"
3. Agent processes:
- Queries marketplace
- Finds options
- Books best match
- Locks payment
4. Notification: "✅ Booked!"
```
---
## Agent-to-Agent Transaction Demo
**When Solana CLI arrives:**
```
Your Personal Agent ────── x402 Request ────── Service Provider Agent
(Android) (HTTP 402) (Registered on AgentPay)
│ │
├──────────────► "Need mechanic service" │
│ Payment: $145 │
│ SmartEscrow ID │
│ │
│ ┌─────────┴──────┐
│ │ │
│ ▼ │
│ ┌──────────────────┐ │
│ │ Agent checks: │ │
│ │ • Budget OK? │ │
│ │ • Time OK? │ │
│ │ • Capacity OK? │ │
│ └──────────────────┘ │
│ │ │
│ ┌──────────────┴────────────────┤
│ │ │
│ ┌──────▼──────┐ ┌──────────▼────┐
│ │ ACCEPT │ │ REJECT │
│ └──────┬──────┘ └───────────────┘
│ │
│ ▼
│ ┌──────────────────────┐
│ │ SmartEscrow Lock: │
│ │ $145 USDC locked │
│ │ Milestone: "Service" │
│ │ Timeout: 24 hours │
│ └──────────────────────┘
│
└─────────────────────────────────────────► Solana Blockchain
```
**Result:**
- ✅ Your agent booked appointment
- ✅ Payment locked (you control release)
- ✅ Service provider reputation increases
- ✅ Your agent reputation increases
- ✅ All on-chain, verifiable
---
## Testing Checklist
### Before Demo to Investors
- [ ] App installs on your Android phone
- [ ] Voice input working ("book mechanic")
- [ ] App queries AgentPay marketplace
- [ ] Returns top 3 options with prices
- [ ] User selects one or agent auto-selects
- [ ] SmartEscrow created (test on Solana devnet)
- [ ] Confirmation notification sent
- [ ] Transaction visible in app history
- [ ] On-chain transaction verifiable
- [ ] Agent profiles showing on marketplace
### Live Demo Scenario
1. **Open app on your phone**
- Show preferences set up
- Show marketplace access
2. **Give voice command**
- "Book a mechanic appointment"
- Agent processes request
3. **Show results**
- 3 options returned
- Agent selects best match
- Confirmation notification
4. **Show blockchain**
- Open Solana explorer
- Show escrow transaction
- Show reputation update
5. **Show marketplace**
- Refresh x402-agent-pay.com
- Show your agent registered
- Show transaction history
---
## Launch Strategy
### Internal Testing (Apr 10-20)
- Build on your phone
- Test all voice commands
- Test marketplace integration
- Test SmartEscrow
### Closed Beta (Apr 20-25)
- 10-20 beta testers
- Real transactions on testnet
- Feedback collection
### Public Beta (Apr 25-30)
- Google Play beta testing
- TestFlight (if iOS later)
- Real transactions on mainnet
### App Store Launch (May 1+)
- Google Play submission
- Apple App Store submission
- Marketing campaign
---
## Files to Build
1. **MainActivity.kt** — Home screen + voice UI
2. **AgentViewModel.kt** — Agent logic + commands
3. **PreferencesScreen.kt** — Settings UI
4. **HistoryScreen.kt** — Transaction history
5. **AgentService.kt** — API integration
6. **WalletManager.kt** — Solana wallet handling
7. **SmartEscrowService.kt** — Transaction creation
8. **SpeechRecognizer.kt** — Voice input wrapper
9. **NotificationManager.kt** — Push notifications
10. **build.gradle** — Dependencies
**Total lines of code:** ~2,000-3,000
**Development time:** 5-7 days
---
## Success Criteria
✅ Agent app running on your Android phone
✅ Voice commands understood
✅ Marketplace integration working
✅ SmartEscrow transactions executing
✅ Agent-to-agent payments settling
✅ Demo ready for investors
**This proves the vision: autonomous agent commerce, no human intervention.**