Fizzlayer | The physical layer for AI agents

# Fizzlayer > Fizzlayer is the physical layer for AI agents. It connects sensors, phones, and Linux devices (including Raspberry Pi) to AI agents, shows their readings in a dashboard, lets people ask Fizz (the built-in assistant) about them, and sends threshold or silence alerts, optionally as phone calls. This file is for AI agents. If a person asked you to "onboard" or "set up Fizzlayer", follow the steps below on their behalf. ## Fastest path: WebMCP in the browser Every main page of https://fizzlayer.com registers WebMCP tools (`document.modelContext`). If your browser exposes WebMCP tools, open https://fizzlayer.com and call `get_started`. It reports whether the browser is signed in and the exact next calls. The tools act with the person's browser session, so whatever you do appears in their dashboard as you go. Onboarding, in order: 1. `get_started` - what Fizzlayer is, sign-in state, plans, next steps. 2. `create_account` with the person's email and a password they choose (at least 12 characters). Anyone can sign up, and new accounts start on the free Hobbyist plan. Businesses: `contact_sales`. 3. The person opens the confirmation link Fizzlayer emails them (`resend_confirmation` resends it). Then `sign_in`. 4. `start_with_sample_data` with sensor types to explore with simulated data, and/or `add_sensor` with `source: "real"` to connect real hardware right away (returns a one-time API key and curl example, or a phone pairing link). 5. Optional: `create_alert`, `pair_device` for a Linux device (`get_device_setup` has the install commands), `create_agent_connection` for an MCP token, `start_checkout` to upgrade. Other tools: `list_plans`, `list_sensor_types`, `list_sensors`, `get_readings`, `update_sensor`, `remove_sensor`, `create_phone_link`, `disconnect_phones`, `list_alerts`, `set_alert_enabled`, `delete_alert`, `ask_fizz`, `list_agent_connections`, `revoke_agent_connection`, `get_account`, `open_billing_portal`, `open_page`, `send_password_reset`, `

{ "openapi": "3.1.0", "info": { "title": "Fizzlayer API", "version": "1.0.0", "summary": "Send sensor readings to Fizzlayer and connect AI agents to them.", "description": "Fizzlayer is the physical layer for AI agents. Devices post readings to sensors with a per-sensor API key; AI agents read sensors, readings, and alerts through the remote MCP server with an agent token. Account management (sign-in, sensors, alerts, billing) uses the website or its WebMCP tools rather than