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171 lines
3.2 KiB
Markdown
171 lines
3.2 KiB
Markdown
# Home Assistant MCP Server API Documentation
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## Overview
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This document provides a reference for the MCP Server API, which offers basic device control and state management for Home Assistant.
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## Authentication
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All API requests require a valid JWT token in the Authorization header:
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```http
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Authorization: Bearer YOUR_TOKEN
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```
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## Core Endpoints
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### Device State Management
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#### Get Device State
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```http
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GET /api/state/{entity_id}
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```
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**Response:**
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```json
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{
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"entity_id": "light.living_room",
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"state": "on",
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"attributes": {
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"brightness": 128
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}
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}
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```
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#### Update Device State
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```http
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POST /api/state
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Content-Type: application/json
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{
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"entity_id": "light.living_room",
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"state": "on",
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"attributes": {
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"brightness": 128
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}
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}
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```
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### Device Control
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#### Execute Device Command
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```http
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POST /api/control
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Content-Type: application/json
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{
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"entity_id": "light.living_room",
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"command": "turn_on",
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"parameters": {
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"brightness": 50
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}
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}
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```
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## Real-Time Updates
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### WebSocket Connection
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Connect to real-time updates:
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```javascript
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const ws = new WebSocket('ws://localhost:3000/events');
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ws.onmessage = (event) => {
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const deviceUpdate = JSON.parse(event.data);
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console.log('Device state changed:', deviceUpdate);
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};
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```
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## Error Handling
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### Common Error Responses
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```json
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{
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"error": {
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"code": "INVALID_REQUEST",
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"message": "Invalid request parameters",
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"details": "Entity ID not found or invalid command"
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}
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}
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```
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## Rate Limiting
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Basic rate limiting is implemented:
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- Maximum of 100 requests per minute
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- Excess requests will receive a 429 Too Many Requests response
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## Supported Operations
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### Supported Commands
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- `turn_on`
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- `turn_off`
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- `toggle`
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- `set_brightness`
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- `set_color`
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### Supported Entities
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- Lights
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- Switches
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- Climate controls
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- Media players
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## Limitations
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- Limited to basic device control
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- No advanced automation
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- Minimal error handling
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- Basic authentication
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## Best Practices
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1. Always include a valid JWT token
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2. Handle potential errors in your client code
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3. Use WebSocket for real-time updates when possible
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4. Validate entity IDs before sending commands
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## Example Client Usage
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```typescript
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async function controlDevice(entityId: string, command: string, params?: Record<string, unknown>) {
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try {
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const response = await fetch('/api/control', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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'Authorization': `Bearer ${token}`
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},
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body: JSON.stringify({
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entity_id: entityId,
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command,
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parameters: params
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})
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});
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if (!response.ok) {
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const error = await response.json();
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throw new Error(error.message);
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}
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return await response.json();
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} catch (error) {
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console.error('Device control failed:', error);
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throw error;
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}
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}
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// Usage example
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controlDevice('light.living_room', 'turn_on', { brightness: 50 })
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.then(result => console.log('Device controlled successfully'))
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.catch(error => console.error('Control failed', error));
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```
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## Future Development
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Planned improvements:
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- Enhanced error handling
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- More comprehensive device support
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- Improved authentication mechanisms
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*API is subject to change. Always refer to the latest documentation.*
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