Arduino Cloud

Arduino Cloud provides IoT device management for Arduino and compatible microcontrollers — Things (device configurations), Properties (mapped to device variables for sensor readings and actuator control), and Dashboards for visualization. For agents, the API enables: reading live sensor values from cloud-connected devices, writing property values to trigger actuators (turn on/off, set setpoint), listing and monitoring device connectivity status, and managing device configurations. Useful for agent pipelines that interact with physical systems via cloud-connected hardware. OAuth2 makes token management more complex than API key auth for simple use cases. Confidence is docs-derived.

REST API at api2.arduino.cc/iot/v2. Resources: things, properties, devices, dashboards, triggers. GET /v2/things lists all configured Things (device configs). GET /v2/things/{id}/properties lists properties (sensor/actuator variables). PUT /v2/things/{thingId}/properties/{propertyId} writes a property value to the device. Property values are typed (bool, int, float, string, timestamp). Pagination via page and per_page. Filtering by device ID and property type. Response payloads are JSON with property value, timing, and persistence metadata.

Standard HTTP status codes with JSON error bodies. 401 for expired token (requires OAuth2 refresh), 404 for missing Thing/property, 409 for property value conflict (type mismatch). Write operations to offline devices don't error immediately — Arduino Cloud queues the write and delivers when the device reconnects. Device connectivity status available via GET /v2/devices/{id}. Rate limits per account tier. Arduino Cloud uptime at status.arduino.cc.

OAuth2 client credentials flow: POST /iot/v1/clients/token with client_id and client_secret to obtain a bearer token (short-lived, requires refresh). Client credentials created in Arduino Cloud account settings → API keys. HTTPS enforced. Token scope covers all IoT API operations for the account. Refresh token flow required for long-running agents.

docs.arduino.cc/arduino-cloud provides REST API reference, OAuth2 authentication guide, Thing/property schema, device onboarding guides, and dashboard configuration. API reference covers all endpoints with request/response examples. Getting started requires an Arduino Cloud account (free tier with limitations on Things and data retention). Client library and SDK guides available. Community support via Arduino Forum.