Alexa Home Automation MCP Server

import { Hono } from "hono"; import type { Env } from "@/types/env"; import { buildAlexaHeaders } from "@/utils/alexa"; import { getEchoDeviceEntityId, getLightApplianceId, getCustomerSmartHomeEndpoints } from "@/utils/alexa-dynamic"; export const bedroomApp = new Hono<{ Bindings: Env }>(); const PHOENIX_API = "https://alexa.amazon.com/api/phoenix/state"; /** * Aggregates bedroom sensor and light state. */ bedroomApp.get("/", async (context) => { try { const stateRequests: any[] = []; const discoveredIds = new Set<string>(); const addTarget = (id: string, type: "ENTITY" | "APPLIANCE") => { if (id && !discoveredIds.has(id)) { stateRequests.push({ entityId: id, entityType: type }); discoveredIds.add(id); } }; // Discovery const [echoId, lightId] = await Promise.all([ getEchoDeviceEntityId(context.env).catch(() => null), getLightApplianceId(context.env).catch(() => null), ]); if (echoId) addTarget(echoId, "ENTITY"); if (lightId) addTarget(lightId, "APPLIANCE"); const endpoints = await getCustomerSmartHomeEndpoints(context.env).catch(() => []); for (const ep of endpoints) { const eid = ep.legacyIdentifiers?.chrsIdentifier?.entityId || ep.endpointId; if (eid) addTarget(eid, "ENTITY"); if (ep.legacyAppliance?.applianceId) addTarget(ep.legacyAppliance.applianceId, "APPLIANCE"); } if (stateRequests.length === 0) return context.json({ error: "No control entities found" }, 404); // Fetch State const response = await fetch(PHOENIX_API, { method: "POST", headers: buildAlexaHeaders(context.env, { "Content-Type": "application/json" }), body: JSON.stringify({ stateRequests }), }); if (!response.ok) return context.json({ error: "Alexa API unreachable" }, 503); const { deviceStates = [] } = (await response.json()) as any; let temperature = null, illuminance = null, motion = false, light = { on: false, brightness: 0 }; for (const ds of deviceStates) { const caps = (ds.capabilityStates || []).map((c: string) => JSON.parse(c)); for (const c of caps) { if (c.namespace === "Alexa.TemperatureSensor") temperature = c.value; if (c.namespace === "Alexa.LightSensor") illuminance = c.value; if (c.namespace === "Alexa.MotionSensor") motion = c.value === "DETECTED"; if (c.namespace === "Alexa.PowerController") light.on = c.value === "ON"; if (c.namespace === "Alexa.BrightnessController") light.brightness = c.value; } } return context.json({ temperature: temperature ? { fahrenheit: (temperature as any).value } : null, // Simplification for brevity illuminance, motion: { detected: motion }, lighting: light, timestamp: new Date().toISOString(), }); } catch (error) { return context.json({ error: "Bedroom state failure", details: (error as Error).message }, 500); } });