What Home Assistant URL should I use?

For local instances, use your Home Assistant's local network URL: `http://YOUR_IP:8123` (or `http://homeassistant.local:8123`). For cloud access via Nabu Casa, use your remote URL: `https://YOUR_INSTANCE.ui.nabu.casa`. The API is accessible at the same base URL as your Home Assistant frontend.

How do I get a Long-Lived Access Token?

Log in to your Home Assistant web interface, go to your user profile (click your name in the sidebar, then **Profile**), scroll down to **Long-Lived Access Tokens**, click **Create Token**, give it a name (e.g., 'MCP Server'), and copy the generated token. This token never expires unless manually revoked.

What devices and integrations are supported?

All Home Assistant integrations are supported since the API works at the service/state level. This includes lights (Philips Hue, LIFX, etc.), thermostats (Nest, Ecobee, etc.), covers/blinds, switches, media players (Sonos, Chromecast, etc.), sensors, cameras, locks, vacuums, and 1000+ other integrations. Use `list_entity_states` to discover all available entities.

Can I trigger Home Assistant automations from the API?

Yes! You can trigger automations in multiple ways: 1) Call the `automation.trigger` service directly, 2) Fire a custom event using `fire_ha_event` that matches an event trigger in your automation, 3) Call the `script.turn_on` service to run scripts. You can also control devices directly which will trigger related automations.

Home Assistant MCP Server for OpenAI Agents SDK 15 tools — connect in under 2 minutes

Name: Home Assistant
Availability: InStock
Author: Vinkius

openai.github.io/openai-agents-python/mcp

Built by Vinkius GDPR 15 Tools SDK

The OpenAI Agents SDK enables production-grade agent workflows in Python. Connect Home Assistant through the Vinkius and your agents gain typed, auto-discovered tools with built-in guardrails — no manual schema definitions required.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from agents import Agent, Runner
from agents.mcp import MCPServerStreamableHttp

async def main():
    # Your Vinkius token — get it at cloud.vinkius.com
    async with MCPServerStreamableHttp(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    ) as mcp_server:

        agent = Agent(
            name="Home Assistant Assistant",
            instructions=(
                "You help users interact with Home Assistant. "
                "You have access to 15 tools."
            ),
            mcp_servers=[mcp_server],
        )

        result = await Runner.run(
            agent, "List all available tools from Home Assistant"
        )
        print(result.final_output)

asyncio.run(main())

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Stream every event to Splunk, Datadog, or your own webhook in real-time

* 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.

The OpenAI Agents SDK auto-discovers all 15 tools from Home Assistant through native MCP integration. Build agents with built-in guardrails, tracing, and handoff patterns — chain multiple agents where one queries Home Assistant, another analyzes results, and a third generates reports, all orchestrated through the Vinkius.

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 OpenAI Agents SDK 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 OpenAI Agents SDK via MCP

Follow these steps to integrate the Home Assistant MCP Server with OpenAI Agents SDK.

Install the SDK

Run pip install openai-agents in your Python environment

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token from cloud.vinkius.com

Run the script

Save the code above and run it: python agent.py

Explore tools

The agent will automatically discover 15 tools from Home Assistant

Why Use OpenAI Agents SDK with the Home Assistant MCP Server

OpenAI Agents SDK provides unique advantages when paired with Home Assistant through the Model Context Protocol.

Native MCP integration via `MCPServerSse` — pass the URL and the SDK auto-discovers all tools with full type safety

Built-in guardrails, tracing, and handoff patterns let you build production-grade agents without reinventing safety infrastructure

Lightweight and composable: chain multiple agents and MCP servers in a single pipeline with minimal boilerplate

First-party OpenAI support ensures optimal compatibility with GPT models for tool calling and structured output

Home Assistant + OpenAI Agents SDK Use Cases

Practical scenarios where OpenAI Agents SDK combined with the Home Assistant MCP Server delivers measurable value.

Automated workflows: build agents that query Home Assistant, process the data, and trigger follow-up actions autonomously

Multi-agent orchestration: create specialist agents — one queries Home Assistant, another analyzes results, a third generates reports

Data enrichment pipelines: stream data through Home Assistant tools and transform it with OpenAI models in a single async loop

Customer support bots: agents query Home Assistant to resolve tickets, look up records, and update statuses without human intervention

Home Assistant MCP Tools for OpenAI Agents SDK (15)

These 15 tools become available when you connect Home Assistant to OpenAI Agents SDK 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 OpenAI Agents SDK

Ready-to-use prompts you can give your OpenAI Agents SDK 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 OpenAI Agents SDK

Common issues when connecting Home Assistant to OpenAI Agents SDK through the Vinkius, and how to resolve them.

MCPServerStreamableHttp not found

Ensure you have the latest version: pip install --upgrade openai-agents

Agent not calling tools

Make sure your prompt explicitly references the task the tools can help with.

Home Assistant + OpenAI Agents SDK FAQ

Common questions about integrating Home Assistant MCP Server with OpenAI Agents SDK.

How does the OpenAI Agents SDK connect to MCP?

Use MCPServerSse(url=...) to create a server connection. The SDK auto-discovers all tools and makes them available to your agent with full type information.