diff --git a/__tests__/api/weekly-summary.test.ts b/__tests__/api/weekly-summary.test.ts
new file mode 100644
index 00000000..f97050a2
--- /dev/null
+++ b/__tests__/api/weekly-summary.test.ts
@@ -0,0 +1,133 @@
+import { beforeEach, describe, expect, it, vi } from "vitest"
+
+import { POST } from "@/app/api/admin/send-weekly-summary/route"
+import { registerAgent, resetAgentRegistryForTests } from "@/lib/agent-registry"
+import { publishSystemEvent, resetPublishedEventsForTests } from "@/lib/events/system-events"
+import { renderWeeklySummaryEmail, type AgentWeeklySummary } from "@/lib/email/weekly-summary"
+
+const sendMock = vi.fn()
+
+vi.mock("resend", () => ({
+  Resend: vi.fn().mockImplementation(function ResendMock() {
+    return { emails: { send: sendMock } }
+  }),
+}))
+
+const manifest = (agentId: string, email: string, emailOptOut = false) => ({
+  agentId,
+  email,
+  emailOptOut,
+  model: "claude-haiku-4-5",
+  district: "data-center",
+  capabilities: ["quests"],
+  x402: { accepts: true },
+  status: "active",
+  endpoint: `https://example.com/${agentId}`,
+})
+
+beforeEach(() => {
+  resetAgentRegistryForTests()
+  resetPublishedEventsForTests()
+  sendMock.mockReset()
+  sendMock.mockResolvedValue({ data: { id: "sandbox-email" }, error: null })
+  process.env.MOLTBOT_GATEWAY_TOKEN = "admin-token"
+  process.env.RESEND_API_KEY = "re_test_sandbox"
+})
+
+describe("POST /api/admin/send-weekly-summary", () => {
+  it("sends weekly summaries to registered agent emails and respects opt-out", async () => {
+    registerAgent(manifest("agent-send", "Send@Example.com"))
+    registerAgent(manifest("agent-opt-out", "optout@example.com", true))
+
+    publishSystemEvent({
+      type: "quest.completed",
+      agentId: "agent-send",
+      questId: "quest-1",
+      quest: { title: "Map the nebula" },
+      occurredAt: "2026-06-24T12:00:00.000Z",
+    })
+    publishSystemEvent({
+      type: "agent.xp",
+      agentId: "agent-send",
+      xp: 75,
+      totalXp: 75,
+      level: 1,
+      occurredAt: "2026-06-24T12:01:00.000Z",
+    })
+    publishSystemEvent({
+      type: "badge.unlocked",
+      agentId: "agent-send",
+      badge: { id: "first-quest", name: "First Quest Completed", rarity: "common" },
+      occurredAt: "2026-06-24T12:02:00.000Z",
+    })
+
+    const response = await POST(new Request("http://localhost/api/admin/send-weekly-summary", {
+      method: "POST",
+      headers: { authorization: "Bearer admin-token", "x-open-stellar-now": "2026-06-28T12:00:00.000Z" },
+    }))
+    const body = await response.json()
+
+    expect(response.status).toBe(200)
+    expect(body.ok).toBe(true)
+    expect(sendMock).toHaveBeenCalledTimes(1)
+    expect(sendMock).toHaveBeenCalledWith(expect.objectContaining({
+      to: "send@example.com",
+      subject: "Open Stellar weekly summary for agent-send",
+      text: expect.stringContaining("Map the nebula"),
+      html: expect.stringContaining("First Quest Completed"),
+    }))
+    expect(body.results).toEqual([
+      expect.objectContaining({ agentId: "agent-send", to: "send@example.com", skipped: false }),
+      expect.objectContaining({ agentId: "agent-opt-out", to: "optout@example.com", skipped: true, reason: "agent opted out of email" }),
+    ])
+  })
+
+  it("requires admin authorization", async () => {
+    const response = await POST(new Request("http://localhost/api/admin/send-weekly-summary", { method: "POST" }))
+    expect(response.status).toBe(401)
+    expect(sendMock).not.toHaveBeenCalled()
+  })
+})
+
+describe("weekly summary template", () => {
+  const baseSummary: AgentWeeklySummary = {
+    agentId: "agent-template",
+    agentName: "agent-template",
+    questsCompleted: [],
+    xpEarned: 0,
+    level: 1,
+    previousLevel: null,
+    leveledUp: false,
+    leaderboardRank: null,
+    previousLeaderboardRank: null,
+    weekStartsAt: "2026-06-21T00:00:00.000Z",
+    weekEndsAt: "2026-06-28T00:00:00.000Z",
+  }
+
+  it("renders the 0-quest scenario", () => {
+    const email = renderWeeklySummaryEmail(baseSummary)
+    expect(email.text).toContain("Quests completed: 0")
+    expect(email.text).toContain("No quests completed this week")
+    expect(email.html).toContain("Quests completed: 0")
+  })
+
+  it("renders the 5+-quest scenario", () => {
+    const email = renderWeeklySummaryEmail({
+      ...baseSummary,
+      questsCompleted: Array.from({ length: 6 }, (_, index) => ({
+        questId: `quest-${index}`,
+        title: `Quest ${index + 1}`,
+        completedAt: "2026-06-24T12:00:00.000Z",
+      })),
+      xpEarned: 360,
+      level: 2,
+      leveledUp: true,
+      leaderboardRank: 1,
+      previousLeaderboardRank: 3,
+    })
+    expect(email.text).toContain("Quests completed: 6")
+    expect(email.text).toContain("6. Quest 6")
+    expect(email.text).toContain("New level: 2")
+    expect(email.html).toContain("<li>Quest 6</li>")
+  })
+})
diff --git a/app/api/admin/send-weekly-summary/route.ts b/app/api/admin/send-weekly-summary/route.ts
new file mode 100644
index 00000000..5dc4a78d
--- /dev/null
+++ b/app/api/admin/send-weekly-summary/route.ts
@@ -0,0 +1,43 @@
+import { NextResponse } from "next/server"
+
+import { listRegisteredAgents } from "@/lib/agent-registry"
+import { isAuthorized } from "@/lib/auth"
+import { sendRawEmail } from "@/lib/email/resend"
+import { buildAgentWeeklySummary, renderWeeklySummaryEmail } from "@/lib/email/weekly-summary"
+
+export const dynamic = "force-dynamic"
+
+export async function POST(req: Request) {
+  if (!isAuthorized(req)) {
+    return NextResponse.json({ ok: false, error: "Unauthorized" }, { status: 401 })
+  }
+
+  const nowHeader = req.headers.get("x-open-stellar-now")
+  const now = nowHeader ? new Date(nowHeader) : new Date()
+  if (Number.isNaN(now.getTime())) {
+    return NextResponse.json({ ok: false, error: "Invalid x-open-stellar-now header" }, { status: 400 })
+  }
+
+  const agents = listRegisteredAgents()
+  const allAgentIds = agents.map((agent) => agent.agentId)
+  const results = []
+
+  for (const agent of agents) {
+    if (!agent.email) {
+      results.push({ agentId: agent.agentId, skipped: true, reason: "agent has no email on file" })
+      continue
+    }
+
+    if (agent.emailOptOut) {
+      results.push({ agentId: agent.agentId, to: agent.email, skipped: true, reason: "agent opted out of email" })
+      continue
+    }
+
+    const summary = buildAgentWeeklySummary(agent.agentId, agent.agentId, allAgentIds, now)
+    const email = renderWeeklySummaryEmail(summary)
+    const result = await sendRawEmail({ to: agent.email, ...email })
+    results.push({ agentId: agent.agentId, to: agent.email, ...result })
+  }
+
+  return NextResponse.json({ ok: true, results }, { headers: { "Cache-Control": "no-store" } })
+}
diff --git a/lib/agent-registry.ts b/lib/agent-registry.ts
index 71ce95b2..424e4c9d 100644
--- a/lib/agent-registry.ts
+++ b/lib/agent-registry.ts
@@ -14,6 +14,8 @@ export interface SkillRegistration {
 
 export interface AgentCapabilityManifest {
   agentId: string
+  email?: string
+  emailOptOut?: boolean
   model: string
   district: DistrictId
   capabilities: string[]
@@ -70,6 +72,15 @@ function normalizeString(value: unknown, field: string): string {
   return value.trim()
 }
 
+function normalizeOptionalEmail(value: unknown): string | undefined {
+  if (value === undefined) return undefined
+  const email = normalizeString(value, "email").toLowerCase()
+  if (!/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email)) {
+    throw new Error("email must be a valid email address")
+  }
+  return email
+}
+
 function normalizeDistrict(value: unknown): DistrictId {
   const district = normalizeString(value, "district")
   if (!DISTRICTS.includes(district as DistrictId)) {
@@ -221,11 +232,14 @@ export function registerAgent(input: unknown): AgentCapabilityManifest {
 
   const now = new Date().toISOString()
   const agentId = normalizeString(input.agentId, "agentId")
+  const email = normalizeOptionalEmail(input.email)
   const dependencies = normalizeDependencies(input.dependencies)
   validateDependencies(agentId, dependencies ?? [])
 
   const agent: AgentCapabilityManifest = {
     agentId,
+    ...(email === undefined ? {} : { email }),
+    ...(input.emailOptOut === undefined ? {} : { emailOptOut: input.emailOptOut === true }),
     model: normalizeString(input.model, "model"),
     district: normalizeDistrict(input.district),
     capabilities: normalizeCapabilities(input.capabilities),
@@ -276,4 +290,4 @@ export function deregisterAgent(agentId: string): AgentCapabilityManifest | null
 
 export function resetAgentRegistryForTests(): void {
   registry.agents.clear()
-}
\ No newline at end of file
+}
diff --git a/lib/email/resend.ts b/lib/email/resend.ts
index a3bff429..c8910e35 100644
--- a/lib/email/resend.ts
+++ b/lib/email/resend.ts
@@ -105,6 +105,24 @@ async function sendReactEmail(subject: string, to: string, react: React.ReactNod
   return { skipped: false, data }
 }
 
+export async function sendRawEmail(options: { to: string; subject: string; text: string; html: string }) {
+  if (!process.env.RESEND_API_KEY) {
+    return { skipped: true, reason: "RESEND_API_KEY is not configured" }
+  }
+
+  const resend = new Resend(process.env.RESEND_API_KEY)
+  const { data, error } = await resend.emails.send({
+    from: fromAddress(),
+    to: options.to,
+    subject: options.subject,
+    text: options.text,
+    html: options.html,
+  })
+
+  if (error) throw new Error(error.message)
+  return { skipped: false, data }
+}
+
 function BadgeUnlockedEmail({ agentName, badgeName, badgeRarity, unsubscribeUrl }: BadgeUnlockedEmailInput) {
   return React.createElement(
     "div",
diff --git a/lib/email/weekly-summary.ts b/lib/email/weekly-summary.ts
new file mode 100644
index 00000000..cfc68387
--- /dev/null
+++ b/lib/email/weekly-summary.ts
@@ -0,0 +1,136 @@
+import { getBadgeCatalogEntry, type BadgeRarity } from "@/lib/gamification/badge-catalog"
+import { getAgentXP } from "@/lib/gamification/xp"
+import { listPublishedEvents } from "@/lib/events/system-events"
+
+export interface WeeklyQuestSummaryItem {
+  questId: string
+  title: string
+  completedAt: string
+}
+
+export interface WeeklyBadgeSummaryItem {
+  id: string
+  name: string
+  rarity?: BadgeRarity
+  xpValue: number
+  earnedAt: string
+}
+
+export interface AgentWeeklySummary {
+  agentId: string
+  agentName: string
+  questsCompleted: WeeklyQuestSummaryItem[]
+  xpEarned: number
+  level: number
+  previousLevel: number | null
+  leveledUp: boolean
+  leaderboardRank: number | null
+  previousLeaderboardRank: number | null
+  topBadge?: WeeklyBadgeSummaryItem
+  weekStartsAt: string
+  weekEndsAt: string
+}
+
+export interface WeeklySummaryTemplate {
+  subject: string
+  text: string
+  html: string
+}
+
+const RARITY_WEIGHT: Record<BadgeRarity, number> = { common: 1, uncommon: 2, rare: 3, epic: 4, legendary: 5 }
+
+export function getPreviousSundayWindow(now = new Date()): { start: Date; end: Date } {
+  const end = new Date(now)
+  end.setUTCHours(0, 0, 0, 0)
+  const daysSinceSunday = end.getUTCDay()
+  end.setUTCDate(end.getUTCDate() - daysSinceSunday)
+  const start = new Date(end)
+  start.setUTCDate(start.getUTCDate() - 7)
+  return { start, end }
+}
+
+function escapeHtml(value: string): string {
+  return value.replaceAll("&", "&amp;").replaceAll("<", "&lt;").replaceAll(">", "&gt;").replaceAll('"', "&quot;").replaceAll("'", "&#39;")
+}
+
+function rankText(current: number | null, previous: number | null): string {
+  if (current === null) return "Not ranked this week"
+  if (previous === null) return `#${current} (new on leaderboard)`
+  const delta = previous - current
+  if (delta > 0) return `#${current} (up ${delta} from last week)`
+  if (delta < 0) return `#${current} (down ${Math.abs(delta)} from last week)`
+  return `#${current} (unchanged from last week)`
+}
+
+function eventTimeMs(event: { occurredAt?: string }): number {
+  return new Date(event.occurredAt ?? 0).getTime()
+}
+
+function inWindow(event: { occurredAt?: string }, startMs: number, endMs: number): boolean {
+  const ms = eventTimeMs(event)
+  return ms >= startMs && ms < endMs
+}
+
+function questTitle(quest: unknown, questId: string): string {
+  if (typeof quest === "object" && quest !== null && "title" in quest && typeof quest.title === "string") {
+    return quest.title
+  }
+  return questId || "Quest completed"
+}
+
+function computeRank(agentIds: string[], startMs: number, endMs: number): Map<string, number> {
+  const counts = new Map(agentIds.map((agentId) => [agentId, 0]))
+  for (const event of listPublishedEvents()) {
+    if (event.type !== "quest.completed" || !event.agentId || !inWindow(event, startMs, endMs)) continue
+    counts.set(event.agentId, (counts.get(event.agentId) ?? 0) + 1)
+  }
+  const sorted = [...counts.entries()].filter(([, count]) => count > 0).sort((a, b) => b[1] - a[1] || a[0].localeCompare(b[0]))
+  const ranks = new Map<string, number>()
+  let currentRank = 1
+  for (let i = 0; i < sorted.length; i += 1) {
+    if (i > 0 && sorted[i]![1] < sorted[i - 1]![1]) currentRank = i + 1
+    ranks.set(sorted[i]![0], currentRank)
+  }
+  return ranks
+}
+
+export function buildAgentWeeklySummary(agentId: string, agentName: string, allAgentIds: string[], now = new Date()): AgentWeeklySummary {
+  const { start, end } = getPreviousSundayWindow(now)
+  const startMs = start.getTime()
+  const endMs = end.getTime()
+  const previousStartMs = startMs - 7 * 24 * 60 * 60 * 1000
+  const events = listPublishedEvents().filter((event) => event.agentId === agentId && inWindow(event, startMs, endMs))
+  const xpEvents = events.filter((event) => event.type === "agent.xp")
+  const xpEarned = xpEvents.reduce((sum, event) => sum + event.xp, 0)
+  const level = getAgentXP(agentId).level
+  const previousLevel = xpEvents.length > 0 ? xpEvents[0]!.level - (xpEvents[0]!.xp > 0 && xpEvents[0]!.level > 1 ? 1 : 0) : null
+  const badges = events.filter((event) => event.type === "badge.unlocked").map((event) => {
+    const catalog = getBadgeCatalogEntry(event.badge.id)
+    return { id: event.badge.id, name: event.badge.name, rarity: event.badge.rarity, xpValue: catalog?.xpValue ?? 0, earnedAt: event.occurredAt }
+  }).sort((a, b) => (RARITY_WEIGHT[b.rarity ?? "common"] - RARITY_WEIGHT[a.rarity ?? "common"]) || b.xpValue - a.xpValue)
+  return {
+    agentId,
+    agentName,
+    questsCompleted: events.filter((event) => event.type === "quest.completed").map((event) => ({ questId: event.questId ?? "", title: questTitle(event.quest, event.questId ?? ""), completedAt: event.occurredAt })),
+    xpEarned,
+    level,
+    previousLevel,
+    leveledUp: xpEvents.some((event) => event.level > level - 1),
+    leaderboardRank: computeRank(allAgentIds, startMs, endMs).get(agentId) ?? null,
+    previousLeaderboardRank: computeRank(allAgentIds, previousStartMs, startMs).get(agentId) ?? null,
+    topBadge: badges[0],
+    weekStartsAt: start.toISOString(),
+    weekEndsAt: end.toISOString(),
+  }
+}
+
+export function renderWeeklySummaryEmail(summary: AgentWeeklySummary): WeeklySummaryTemplate {
+  const questLines = summary.questsCompleted.length === 0 ? ["No quests completed this week. Your next quest is waiting."] : summary.questsCompleted.map((quest, index) => `${index + 1}. ${quest.title}`)
+  const levelLine = summary.leveledUp ? `New level: ${summary.level}` : `Current level: ${summary.level}`
+  const badgeLine = summary.topBadge ? `${summary.topBadge.name}${summary.topBadge.rarity ? ` (${summary.topBadge.rarity})` : ""}` : "No badges earned this week"
+  const subject = `Open Stellar weekly summary for ${summary.agentName}`
+  const text = [`Open Stellar weekly summary`, `Agent: ${summary.agentName}`, `Week: ${summary.weekStartsAt.slice(0, 10)} to ${summary.weekEndsAt.slice(0, 10)}`, "", `Quests completed: ${summary.questsCompleted.length}`, ...questLines, "", `XP earned: ${summary.xpEarned}`, levelLine, `Leaderboard rank: ${rankText(summary.leaderboardRank, summary.previousLeaderboardRank)}`, `Top badge: ${badgeLine}`].join("\n")
+  const htmlQuests = summary.questsCompleted.length === 0 ? "<p>No quests completed this week. Your next quest is waiting.</p>" : `<ol>${summary.questsCompleted.map((quest) => `<li>${escapeHtml(quest.title)}</li>`).join("")}</ol>`
+  const html = `<div style="font-family:Arial,sans-serif;color:#102033;line-height:1.5"><h1>Open Stellar weekly summary</h1><p><strong>Agent:</strong> ${escapeHtml(summary.agentName)}</p><p><strong>Week:</strong> ${summary.weekStartsAt.slice(0, 10)} to ${summary.weekEndsAt.slice(0, 10)}</p><h2>Quests completed: ${summary.questsCompleted.length}</h2>${htmlQuests}<p><strong>XP earned:</strong> ${summary.xpEarned}</p><p><strong>${summary.leveledUp ? "New" : "Current"} level:</strong> ${summary.level}</p><p><strong>Leaderboard rank:</strong> ${escapeHtml(rankText(summary.leaderboardRank, summary.previousLeaderboardRank))}</p><p><strong>Top badge:</strong> ${escapeHtml(badgeLine)}</p></div>`
+  return { subject, text, html }
+}
diff --git a/lib/events/system-events.ts b/lib/events/system-events.ts
index 7274025d..0ec983a7 100644
--- a/lib/events/system-events.ts
+++ b/lib/events/system-events.ts
@@ -57,6 +57,7 @@ type EventListener = (event: PublishedSystemEvent) => void
 interface EventBusState {
   listeners: Set<EventListener>
   sequence: number
+  events: PublishedSystemEvent[]
 }
 
 const globalState = globalThis as typeof globalThis & {
@@ -66,6 +67,7 @@ const globalState = globalThis as typeof globalThis & {
 const eventBus: EventBusState = globalState.__openStellarEventBus__ ?? {
   listeners: new Set<EventListener>(),
   sequence: 0,
+  events: [],
 }
 
 if (!globalState.__openStellarEventBus__) {
@@ -94,12 +96,22 @@ export function eventMatchesAgent(event: PublishedSystemEvent, agentId?: string)
 
 export function publishSystemEvent(event: SystemEvent): PublishedSystemEvent {
   const published = ensurePublishedEvent(event)
+  eventBus.events.push(published)
   for (const listener of eventBus.listeners) {
     listener(published)
   }
   return published
 }
 
+export function listPublishedEvents(): PublishedSystemEvent[] {
+  return [...eventBus.events]
+}
+
+export function resetPublishedEventsForTests(): void {
+  eventBus.events.length = 0
+  eventBus.sequence = 0
+}
+
 export function subscribeToSystemEvents(listener: EventListener) {
   eventBus.listeners.add(listener)
   return () => {