Compatible with every major AI agent and IDE
What is the ESPHome MCP Server?
Connect your ESPHome microcontrollers to any AI agent and take full control of your smart home or industrial IoT setup through natural conversation.
What you can do
- Real-time Monitoring — Fetch the current state and values of any sensor, switch, or binary sensor using the
get_entity_statetool. - Lighting Control — Manage lights with precision using
light_action, including brightness and RGB color adjustments. - Appliance Management — Toggle switches, control fans with
fan_action, and adjust covers (blinds/garage doors) withcover_action. - Interactive Components — Press buttons via
button_press, set numeric values withnumber_set, and choose options from dropdowns withselect_option. - Security & Safety — Arm or disarm alarm panels using
alarm_actiondirectly from your chat interface.
How it works
- Enable the
web_servercomponent in your ESPHome YAML configuration. - Subscribe to this server.
- Enter your device's local URL and optional password.
- Start interacting with your hardware from Claude, Cursor, or any MCP client.
Who is this for?
- Home Automation Enthusiasts — control your local environment without complex dashboards.
- IoT Developers — test and debug ESP32/ESP8266 entity behaviors using natural language.
- Hardware Engineers — monitor sensor metrics and trigger actions during prototyping phases.
Built-in capabilities (10)
Perform an action on an alarm control panel
Press a button entity
g., blinds, garage door), optionally setting position and tilt. Perform an action on a cover entity
Perform an action on a fan entity
g., sensor, switch) using the Web Server REST API. Get the state of an ESPHome entity
Get Prometheus metrics from the ESPHome device
Perform an action on a light entity
Set a value for a number entity
Set an option for a select entity
Perform an action on a switch entity
Why LlamaIndex?
LlamaIndex agents combine ESPHome tool responses with indexed documents for comprehensive, grounded answers. Connect 10 tools through Vinkius and query live data alongside vector stores and SQL databases in a single turn. ideal for hybrid search, data enrichment, and analytical workflows.
- —
Data-first architecture: LlamaIndex agents combine ESPHome tool responses with indexed documents for comprehensive, grounded answers
- —
Query pipeline framework lets you chain ESPHome tool calls with transformations, filters, and re-rankers in a typed pipeline
- —
Multi-source reasoning: agents can query ESPHome, a vector store, and a SQL database in a single turn and synthesize results
- —
Observability integrations show exactly what ESPHome tools were called, what data was returned, and how it influenced the final answer
ESPHome in LlamaIndex
ESPHome and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect ESPHome to LlamaIndex through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 4,000+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for ESPHome in LlamaIndex
The ESPHome 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. All 10 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in LlamaIndex only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.

* 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
How Vinkius secures
ESPHome for LlamaIndex
Every tool call from LlamaIndex to the ESPHome MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Can I control my lights and set specific colors using this server?
Yes! Use the light_action tool. You can specify the entity name, the action (turn_on), and optional parameters like brightness (0-255) and RGB values (r, g, b) to get the perfect ambiance.
How do I check the current temperature or humidity from my sensors?
Simply use the get_entity_state tool. Provide the domain (e.g., 'sensor') and the entity ID. The agent will return the current value and state of that specific hardware component.
Is it possible to trigger a physical button or restart a device?
Yes. If you have a button entity configured in ESPHome (like a restart button), you can use the button_press tool with the entity name to trigger that action remotely.
How does LlamaIndex connect to MCP servers?
Use the MCP client adapter to create a connection. LlamaIndex discovers all tools and wraps them as query engine tools compatible with any LlamaIndex agent.
Can I combine MCP tools with vector stores?
Yes. LlamaIndex agents can query ESPHome tools and vector store indexes in the same turn, combining real-time and embedded data for grounded responses.
Does LlamaIndex support async MCP calls?
Yes. LlamaIndex's async agent framework supports concurrent MCP tool calls for high-throughput data processing pipelines.
BasicMCPClient not found
Install: pip install llama-index-tools-mcp
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