Home Assistant MCP Server for Mastra AI 15 tools — connect in under 2 minutes
Mastra AI is a TypeScript-native agent framework built for modern web stacks. Connect Home Assistant through the Vinkius and Mastra agents discover all tools automatically — type-safe, streaming-ready, and deployable anywhere Node.js runs.
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Vinkius supports streamable HTTP and SSE.
import { Agent } from "@mastra/core/agent";
import { createMCPClient } from "@mastra/mcp";
import { openai } from "@ai-sdk/openai";
async function main() {
// Your Vinkius token — get it at cloud.vinkius.com
const mcpClient = await createMCPClient({
servers: {
"home-assistant": {
url: "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
},
},
});
const tools = await mcpClient.getTools();
const agent = new Agent({
name: "Home Assistant Agent",
instructions:
"You help users interact with Home Assistant " +
"using 15 tools.",
model: openai("gpt-4o"),
tools,
});
const result = await agent.generate(
"What can I do with Home Assistant?"
);
console.log(result.text);
}
main();
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About Home Assistant MCP Server
Connect to your Home Assistant instance (local or Nabu Casa cloud) and control your entire smart home from any AI agent. Manage lights, climate, media players, covers, switches, and trigger automations via the Home Assistant REST API.
Mastra's agent abstraction provides a clean separation between LLM logic and Home Assistant tool infrastructure. Connect 15 tools through the Vinkius and use Mastra's built-in workflow engine to chain tool calls with conditional logic, retries, and parallel execution — deployable to any Node.js host in one command.
What you can do
- Entity Discovery — List all entities and their current states across all integrations
- Device Control — Turn lights on/off, adjust brightness, set thermostat temperatures, open/close covers
- Service Calls — Call any Home Assistant service (light, switch, climate, cover, media_player, automation, script)
- State Monitoring — Get real-time state of any entity including sensors, binary sensors, and device trackers
- History & Logbook — Query historical state changes and logbook entries for analysis
- Calendar Management — List and query calendar events from Home Assistant calendars
- Event Automation — Fire custom events to trigger Home Assistant automations
- Template Rendering — Render Jinja2 templates for advanced state access
- Configuration — View system configuration, loaded components, and validate configuration
- Local or Cloud — Works with local instances (http://IP:8123) or Nabu Casa cloud (https://INSTANCE.ui.nabu.casa)
The Home Assistant MCP Server exposes 15 tools through the Vinkius. Connect it to Mastra AI in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect Home Assistant to Mastra AI via MCP
Follow these steps to integrate the Home Assistant MCP Server with Mastra AI.
Install dependencies
Run npm install @mastra/core @mastra/mcp @ai-sdk/openai
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Run the agent
Save to agent.ts and run with npx tsx agent.ts
Explore tools
Mastra discovers 15 tools from Home Assistant via MCP
Why Use Mastra AI with the Home Assistant MCP Server
Mastra AI provides unique advantages when paired with Home Assistant through the Model Context Protocol.
Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure — add Home Assistant without touching business code
Built-in workflow engine chains MCP tool calls with conditional logic, retries, and parallel execution for complex automation
TypeScript-native: full type inference for every Home Assistant tool response with IDE autocomplete and compile-time checks
One-command deployment to any Node.js host — Vercel, Railway, Fly.io, or your own infrastructure
Home Assistant + Mastra AI Use Cases
Practical scenarios where Mastra AI combined with the Home Assistant MCP Server delivers measurable value.
Automated workflows: build multi-step agents that query Home Assistant, process results, and trigger downstream actions in a typed pipeline
SaaS integrations: embed Home Assistant as a first-class tool in your product's AI features with Mastra's clean agent API
Background jobs: schedule Mastra agents to query Home Assistant on a cron and store results in your database automatically
Multi-agent systems: create specialist agents that collaborate using Home Assistant tools alongside other MCP servers
Home Assistant MCP Tools for Mastra AI (15)
These 15 tools become available when you connect Home Assistant to Mastra AI via MCP:
call_ha_service
This is the primary way to control devices in Home Assistant. COMMON SERVICE CALLS: - light.turn_on: entity_id, brightness (0-255), color_temp, rgb_color - light.turn_off: entity_id - switch.turn_on: entity_id - switch.turn_off: entity_id - climate.set_temperature: entity_id, temperature - climate.set_hvac_mode: entity_id, hvac_mode (heat, cool, auto, off) - cover.open_cover: entity_id - cover.close_cover: entity_id - media_player.turn_on: entity_id - media_player.turn_off: entity_id - media_player.media_play: entity_id - automation.trigger: entity_id - script.turn_on: entity_id DOMAINS: light, switch, climate, cover, fan, lock, media_player, automation, script, scene, input_boolean, input_number, notify PARAMETERS: - domain (REQUIRED): Domain name (e.g. light, switch, climate) - service (REQUIRED): Service name (e.g. turn_on, turn_off, set_temperature) - service_data (OPTIONAL): JSON object with service parameters including entity_id EXAMPLES: - "Turn on living room light" → domain="light", service="turn_on", service_data={"entity_id":"light.living_room"} - "Set bedroom temperature to 20" → domain="climate", service="set_temperature", service_data={"entity_id":"climate.bedroom","temperature":20} Call a Home Assistant service on a domain
check_ha_configuration
Check Home Assistant configuration validity
fire_ha_event
The event type must match automation triggers configured in Home Assistant. Fire a custom event in Home Assistant
get_api_status
Use this as a connectivity test before making other API calls. Check if the Home Assistant API is running
get_calendar_events
Get events from a Home Assistant calendar
get_entity_history
Useful for analyzing trends and past behavior. Get historical state data for an entity
get_entity_state
Use entity IDs from list_entity_states (e.g., light.living_room, climate.bedroom, sensor.temperature). Get the current state of a specific entity
get_ha_config
Get the Home Assistant configuration details
get_logbook_entries
Can be filtered by entity and time range. Get Home Assistant logbook entries
list_available_services
g., light: turn_on, turn_off, toggle; climate: set_temperature, set_hvac_mode). Essential for discovering what actions can be performed. List all available services across all domains
list_entity_states
Each entity includes entity_id, state, last_changed timestamp, and attributes. Essential for discovering available devices. List all entity states in Home Assistant
list_ha_calendars
List all calendars configured in Home Assistant
list_ha_components
List all loaded components/integrations in Home Assistant
list_ha_events
Useful for understanding what events Home Assistant is tracking. List all event types currently registered in Home Assistant
render_ha_template
Useful for accessing HA template functions and state from the API. Render a Jinja2 template in Home Assistant
Example Prompts for Home Assistant in Mastra AI
Ready-to-use prompts you can give your Mastra AI agent to start working with Home Assistant immediately.
"List all my smart home entities and show me the lights."
"Turn on the living room light and set it to 50% brightness."
"What is the current temperature in the bedroom and what mode is the thermostat?"
Troubleshooting Home Assistant MCP Server with Mastra AI
Common issues when connecting Home Assistant to Mastra AI through the Vinkius, and how to resolve them.
createMCPClient not exported
npm install @mastra/mcpHome Assistant + Mastra AI FAQ
Common questions about integrating Home Assistant MCP Server with Mastra AI.
How does Mastra AI connect to MCP servers?
MCPClient with the server URL and pass it to your agent. Mastra discovers all tools and makes them available with full TypeScript types.Can Mastra agents use tools from multiple servers?
Does Mastra support workflow orchestration?
Connect Home Assistant with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
Anthropic's native desktop app for Claude with built-in MCP support.
AI-first code editor with integrated LLM-powered coding assistance.
GitHub Copilot in VS Code with Agent mode and MCP support.
Purpose-built IDE for agentic AI coding workflows.
Autonomous AI coding agent that runs inside VS Code.
Anthropic's agentic CLI for terminal-first development.
Python SDK for building production-grade OpenAI agent workflows.
Google's framework for building production AI agents.
Type-safe agent development for Python with first-class MCP support.
TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect Home Assistant to Mastra AI
Get your token, paste the configuration, and start using 15 tools in under 2 minutes. No API key management needed.