plugmyagent

Home Assistant REST API

Smart Home Free key (no card)

AuthenticationFree key (no card)
Rate limitNone from a provider. It is your own server, limited only by your hardware

Documentation: developers.home-assistant.io ยท Checked Sep 13, 2026

About

Home Assistant is the leading open-source smart home platform, and its REST API lets you read every device state and call any service from your own scripts. Authentication uses a long-lived token you generate inside your own installation. No cloud account or fee involved. It is perfect for local-first automations that keep working even without internet.

Details

Free to start. You may need a free key, but no credit card.

Auth: Free key (no card)

Rate limit: None from a provider. It is your own server, limited only by your hardware

Verified: 2026-09-13

Best for: smart-home automation local

Read the docs Back to catalog

Setup

  1. Install Home Assistant on your own hardware (a Raspberry Pi works well).
  2. Create a long-lived access token in your user profile settings.
  3. Include the token as a Bearer header in API requests.
  4. Read device states from /api/states and history from /api/history.
  5. Trigger actions by posting to /api/services like light.turn_on.
Sign up