diff --git a/apps/aelis-backend/src/admin/http.test.ts b/apps/aelis-backend/src/admin/http.test.ts
new file mode 100644
index 0000000..60ef7c8
--- /dev/null
+++ b/apps/aelis-backend/src/admin/http.test.ts
@@ -0,0 +1,162 @@
+import type { ActionDefinition, ContextEntry, FeedItem, FeedSource } from "@aelis/core"
+
+import { Hono } from "hono"
+import { describe, expect, test } from "bun:test"
+
+import type { AdminMiddleware } from "../auth/admin-middleware.ts"
+import type { AuthSession, AuthUser } from "../auth/session.ts"
+import type { Database } from "../db/index.ts"
+import type { FeedSourceProvider } from "../session/feed-source-provider.ts"
+
+import { UserSessionManager } from "../session/user-session-manager.ts"
+import { registerAdminHttpHandlers } from "./http.ts"
+
+function createStubSource(id: string): FeedSource {
+	return {
+		id,
+		async listActions(): Promise<Record<string, ActionDefinition>> {
+			return {}
+		},
+		async executeAction(): Promise<unknown> {
+			return undefined
+		},
+		async fetchContext(): Promise<readonly ContextEntry[] | null> {
+			return null
+		},
+		async fetchItems(): Promise<FeedItem[]> {
+			return []
+		},
+	}
+}
+
+function createStubProvider(sourceId: string): FeedSourceProvider {
+	return {
+		sourceId,
+		async feedSourceForUser() {
+			return createStubSource(sourceId)
+		},
+	}
+}
+
+/** Passthrough admin middleware for testing (assumes admin). */
+function passthroughAdminMiddleware(): AdminMiddleware {
+	const now = new Date()
+	return async (c, next) => {
+		c.set("user", {
+			id: "admin-1",
+			name: "Admin",
+			email: "admin@test.com",
+			emailVerified: true,
+			image: null,
+			createdAt: now,
+			updatedAt: now,
+			role: "admin",
+			banned: false,
+			banReason: null,
+			banExpires: null,
+		} as AuthUser)
+		c.set("session", { id: "sess-1" } as AuthSession)
+		await next()
+	}
+}
+
+const fakeDb = {} as Database
+
+function createApp(providers: FeedSourceProvider[]) {
+	const sessionManager = new UserSessionManager({ providers })
+	const app = new Hono()
+	registerAdminHttpHandlers(app, {
+		sessionManager,
+		adminMiddleware: passthroughAdminMiddleware(),
+		db: fakeDb,
+	})
+	return { app, sessionManager }
+}
+
+const validWeatherConfig = {
+	credentials: {
+		privateKey: "pk-123",
+		keyId: "key-456",
+		teamId: "team-789",
+		serviceId: "svc-abc",
+	},
+}
+
+describe("PUT /api/admin/:sourceId/config", () => {
+	test("returns 404 for unknown provider", async () => {
+		const { app } = createApp([createStubProvider("aelis.location")])
+
+		const res = await app.request("/api/admin/aelis.nonexistent/config", {
+			method: "PUT",
+			headers: { "Content-Type": "application/json" },
+			body: JSON.stringify({ key: "value" }),
+		})
+
+		expect(res.status).toBe(404)
+		const body = (await res.json()) as { error: string }
+		expect(body.error).toContain("not found")
+	})
+
+	test("returns 404 for provider without runtime config support", async () => {
+		const { app } = createApp([createStubProvider("aelis.location")])
+
+		const res = await app.request("/api/admin/aelis.location/config", {
+			method: "PUT",
+			headers: { "Content-Type": "application/json" },
+			body: JSON.stringify({ key: "value" }),
+		})
+
+		expect(res.status).toBe(404)
+		const body = (await res.json()) as { error: string }
+		expect(body.error).toContain("not found")
+	})
+
+	test("returns 400 for invalid JSON body", async () => {
+		const { app } = createApp([createStubProvider("aelis.weather")])
+
+		const res = await app.request("/api/admin/aelis.weather/config", {
+			method: "PUT",
+			headers: { "Content-Type": "application/json" },
+			body: "not json",
+		})
+
+		expect(res.status).toBe(400)
+		const body = (await res.json()) as { error: string }
+		expect(body.error).toContain("Invalid JSON")
+	})
+
+	test("returns 400 when weather config fails validation", async () => {
+		const { app } = createApp([createStubProvider("aelis.weather")])
+
+		const res = await app.request("/api/admin/aelis.weather/config", {
+			method: "PUT",
+			headers: { "Content-Type": "application/json" },
+			body: JSON.stringify({ credentials: { privateKey: 123 } }),
+		})
+
+		expect(res.status).toBe(400)
+		const body = (await res.json()) as { error: string }
+		expect(body.error).toBeDefined()
+	})
+
+	test("returns 204 and applies valid weather config", async () => {
+		const { app, sessionManager } = createApp([createStubProvider("aelis.weather")])
+
+		const originalProvider = sessionManager.getProvider("aelis.weather")
+
+		const res = await app.request("/api/admin/aelis.weather/config", {
+			method: "PUT",
+			headers: { "Content-Type": "application/json" },
+			body: JSON.stringify(validWeatherConfig),
+		})
+
+		expect(res.status).toBe(204)
+
+		// Provider was replaced with a new instance
+		const provider = sessionManager.getProvider("aelis.weather")
+		expect(provider).toBeDefined()
+		expect(provider!.sourceId).toBe("aelis.weather")
+		expect(provider).not.toBe(originalProvider)
+	})
+
+})
diff --git a/apps/aelis-backend/src/admin/http.ts b/apps/aelis-backend/src/admin/http.ts
new file mode 100644
index 0000000..52921fc
--- /dev/null
+++ b/apps/aelis-backend/src/admin/http.ts
@@ -0,0 +1,88 @@
+import type { Context, Hono } from "hono"
+
+import { type } from "arktype"
+import { createMiddleware } from "hono/factory"
+
+import type { AdminMiddleware } from "../auth/admin-middleware.ts"
+import type { Database } from "../db/index.ts"
+import type { UserSessionManager } from "../session/index.ts"
+
+import { WeatherSourceProvider } from "../weather/provider.ts"
+
+type Env = {
+	Variables: {
+		sessionManager: UserSessionManager
+		db: Database
+	}
+}
+
+interface AdminHttpHandlersDeps {
+	sessionManager: UserSessionManager
+	adminMiddleware: AdminMiddleware
+	db: Database
+}
+
+export function registerAdminHttpHandlers(
+	app: Hono,
+	{ sessionManager, adminMiddleware, db }: AdminHttpHandlersDeps,
+) {
+	const inject = createMiddleware<Env>(async (c, next) => {
+		c.set("sessionManager", sessionManager)
+		c.set("db", db)
+		await next()
+	})
+
+	app.put("/api/admin/:sourceId/config", inject, adminMiddleware, handleUpdateProviderConfig)
+}
+
+const WeatherKitSourceProviderConfig = type({
+	credentials: {
+		privateKey: "string",
+		keyId: "string",
+		teamId: "string",
+		serviceId: "string",
+	},
+})
+
+async function handleUpdateProviderConfig(c: Context<Env>) {
+	const sourceId = c.req.param("sourceId")
+	if (!sourceId) {
+		return c.body(null, 404)
+	}
+
+	const sessionManager = c.get("sessionManager")
+	const db = c.get("db")
+
+	let body: unknown
+	try {
+		body = await c.req.json()
+	} catch {
+		return c.json({ error: "Invalid JSON" }, 400)
+	}
+
+	switch (sourceId) {
+		case "aelis.weather": {
+			const parsed = WeatherKitSourceProviderConfig(body)
+			if (parsed instanceof type.errors) {
+				return c.json({ error: parsed.summary }, 400)
+			}
+
+			const updated = new WeatherSourceProvider({
+				db,
+				credentials: parsed.credentials,
+			})
+
+			try {
+				await sessionManager.replaceProvider(updated)
+			} catch (err) {
+				console.error(`[admin] replaceProvider("${sourceId}") failed:`, err)
+				return c.json({ error: "Failed to apply config" }, 500)
+			}
+
+			return c.body(null, 204)
+		}
+
+		default:
+			return c.json({ error: `Provider "${sourceId}" not found` }, 404)
+	}
+}
diff --git a/apps/aelis-backend/src/auth/admin-middleware.test.ts b/apps/aelis-backend/src/auth/admin-middleware.test.ts
new file mode 100644
index 0000000..1fa5547
--- /dev/null
+++ b/apps/aelis-backend/src/auth/admin-middleware.test.ts
@@ -0,0 +1,95 @@
+import { Hono } from "hono"
+import { describe, expect, test } from "bun:test"
+
+import type { Auth } from "./index.ts"
+import type { AuthSession, AuthUser } from "./session.ts"
+
+import { createRequireAdmin } from "./admin-middleware.ts"
+
+function makeUser(role: string | null): AuthUser {
+	const now = new Date()
+	return {
+		id: "user-1",
+		name: "Test User",
+		email: "test@example.com",
+		emailVerified: true,
+		image: null,
+		createdAt: now,
+		updatedAt: now,
+		role,
+		banned: false,
+		banReason: null,
+		banExpires: null,
+	}
+}
+
+function makeSession(): AuthSession {
+	const now = new Date()
+	return {
+		id: "sess-1",
+		userId: "user-1",
+		token: "tok-1",
+		expiresAt: new Date(now.getTime() + 7 * 24 * 60 * 60 * 1000),
+		ipAddress: "127.0.0.1",
+		userAgent: "test",
+		createdAt: now,
+		updatedAt: now,
+	}
+}
+
+function mockAuth(sessionResult: { user: AuthUser; session: AuthSession } | null): Auth {
+	return {
+		api: {
+			getSession: async () => sessionResult,
+		},
+	} as unknown as Auth
+}
+
+function createApp(auth: Auth) {
+	const app = new Hono()
+	const middleware = createRequireAdmin(auth)
+	app.get("/api/admin/test", middleware, (c) => c.json({ ok: true }))
+	return app
+}
+
+describe("createRequireAdmin", () => {
+	test("returns 401 when no session", async () => {
+		const app = createApp(mockAuth(null))
+
+		const res = await app.request("/api/admin/test")
+
+		expect(res.status).toBe(401)
+		const body = (await res.json()) as { error: string }
+		expect(body.error).toBe("Unauthorized")
+	})
+
+	test("returns 403 when user is not admin", async () => {
+		const app = createApp(mockAuth({ user: makeUser("user"), session: makeSession() }))
+
+		const res = await app.request("/api/admin/test")
+
+		expect(res.status).toBe(403)
+		const body = (await res.json()) as { error: string }
+		expect(body.error).toBe("Forbidden")
+	})
+
+	test("returns 403 when role is null", async () => {
+		const app = createApp(mockAuth({ user: makeUser(null), session: makeSession() }))
+
+		const res = await app.request("/api/admin/test")
+
+		expect(res.status).toBe(403)
+	})
+
+	test("allows admin users through and sets context", async () => {
+		const user = makeUser("admin")
+		const session = makeSession()
+		const app = createApp(mockAuth({ user, session }))
+
+		const res = await app.request("/api/admin/test")
+
+		expect(res.status).toBe(200)
+		const body = (await res.json()) as { ok: boolean }
+		expect(body.ok).toBe(true)
+	})
+})
diff --git a/apps/aelis-backend/src/auth/admin-middleware.ts b/apps/aelis-backend/src/auth/admin-middleware.ts
new file mode 100644
index 0000000..9b8ac5b
--- /dev/null
+++ b/apps/aelis-backend/src/auth/admin-middleware.ts
@@ -0,0 +1,28 @@
+import type { Context, MiddlewareHandler, Next } from "hono"
+
+import type { Auth } from "./index.ts"
+import type { AuthSessionEnv } from "./session-middleware.ts"
+
+export type AdminMiddleware = MiddlewareHandler<AuthSessionEnv>
+
+/**
+ * Creates a middleware that requires a valid session with admin role.
+ * Returns 401 if not authenticated, 403 if not admin.
+ */
+export function createRequireAdmin(auth: Auth): AdminMiddleware {
+	return async (c: Context, next: Next): Promise<Response | void> => {
+		const session = await auth.api.getSession({ headers: c.req.raw.headers })
+
+		if (!session) {
+			return c.json({ error: "Unauthorized" }, 401)
+		}
+
+		if (session.user.role !== "admin") {
+			return c.json({ error: "Forbidden" }, 403)
+		}
+
+		c.set("user", session.user)
+		c.set("session", session.session)
+		await next()
+	}
+}
diff --git a/apps/aelis-backend/src/server.ts b/apps/aelis-backend/src/server.ts
index b1a05d5..4b4ca91 100644
--- a/apps/aelis-backend/src/server.ts
+++ b/apps/aelis-backend/src/server.ts
@@ -1,5 +1,7 @@
 import { Hono } from "hono"
 
+import { registerAdminHttpHandlers } from "./admin/http.ts"
+import { createRequireAdmin } from "./auth/admin-middleware.ts"
 import { registerAuthHandlers } from "./auth/http.ts"
 import { createAuth } from "./auth/index.ts"
 import { createRequireSession } from "./auth/session-middleware.ts"
@@ -50,6 +52,7 @@ function main() {
 	app.get("/health", (c) => c.json({ status: "ok" }))
 
 	const authSessionMiddleware = createRequireSession(auth)
+	const adminMiddleware = createRequireAdmin(auth)
 
 	registerAuthHandlers(app, auth)
 
@@ -58,6 +61,7 @@ function main() {
 		authSessionMiddleware,
 	})
 	registerLocationHttpHandlers(app, { sessionManager, authSessionMiddleware })
+	registerAdminHttpHandlers(app, { sessionManager, adminMiddleware, db })
 
 	process.on("SIGTERM", async () => {
 		await closeDb()
diff --git a/apps/aelis-backend/src/session/user-session-manager.ts b/apps/aelis-backend/src/session/user-session-manager.ts
index 79e2d63..e0d5612 100644
--- a/apps/aelis-backend/src/session/user-session-manager.ts
+++ b/apps/aelis-backend/src/session/user-session-manager.ts
@@ -23,6 +23,10 @@ export class UserSessionManager {
 		this.feedEnhancer = config.feedEnhancer ?? null
 	}
 
+	getProvider(sourceId: string): FeedSourceProvider | undefined {
+		return this.providers.get(sourceId)
+	}
+
 	async getOrCreate(userId: string): Promise<UserSession> {
 		const existing = this.sessions.get(userId)
 		if (existing) return existing.session