diff --git a/extensions/tlon/src/config-schema.ts b/extensions/tlon/src/config-schema.ts
index 20b5eb4dd..18d2d37ca 100644
--- a/extensions/tlon/src/config-schema.ts
+++ b/extensions/tlon/src/config-schema.ts
@@ -23,6 +23,11 @@ export const TlonAccountSchema = z.object({
   dmAllowlist: z.array(ShipSchema).optional(),
   autoDiscoverChannels: z.boolean().optional(),
   showModelSignature: z.boolean().optional(),
+  // Auto-accept invites settings
+  autoAcceptGroupInvites: z.boolean().optional(),
+  autoAcceptDmInvites: z.boolean().optional(),
+  inviteAllowlist: z.array(ShipSchema).optional(),
+  inviteBlocklist: z.array(ShipSchema).optional(),
 });
 
 export const TlonConfigSchema = z.object({
@@ -37,6 +42,11 @@ export const TlonConfigSchema = z.object({
   showModelSignature: z.boolean().optional(),
   authorization: TlonAuthorizationSchema.optional(),
   defaultAuthorizedShips: z.array(ShipSchema).optional(),
+  // Auto-accept invites settings
+  autoAcceptGroupInvites: z.boolean().optional(),
+  autoAcceptDmInvites: z.boolean().optional(),
+  inviteAllowlist: z.array(ShipSchema).optional(),
+  inviteBlocklist: z.array(ShipSchema).optional(),
   accounts: z.record(z.string(), TlonAccountSchema).optional(),
 });
 
diff --git a/extensions/tlon/src/monitor/index.ts b/extensions/tlon/src/monitor/index.ts
index 26ea1407d..9db5bba46 100644
--- a/extensions/tlon/src/monitor/index.ts
+++ b/extensions/tlon/src/monitor/index.ts
@@ -7,7 +7,7 @@ import { resolveTlonAccount } from "../types.js";
 import { normalizeShip, parseChannelNest } from "../targets.js";
 import { authenticate } from "../urbit/auth.js";
 import { UrbitSSEClient } from "../urbit/sse-client.js";
-import { sendDm, sendGroupMessage } from "../urbit/send.js";
+import { sendDm, sendGroupMessage, acceptGroupInvite, acceptDmInvite } from "../urbit/send.js";
 import { cacheMessage, getChannelHistory } from "./history.js";
 import { createProcessedMessageTracker } from "./processed-messages.js";
 import {
@@ -423,6 +423,185 @@ export async function monitorTlonProvider(opts: MonitorTlonOpts = {}): Promise<v
     }
   }
 
+  // Track processed invites to avoid duplicates
+  const processedInvites = new Set<string>();
+  const processedDmInvites = new Set<string>();
+
+  // Check if an invite should be auto-accepted based on config
+  function shouldAutoAcceptInvite(inviterShip: string, isGroupInvite: boolean): boolean {
+    const autoAcceptEnabled = isGroupInvite ? account.autoAcceptGroupInvites : account.autoAcceptDmInvites;
+    if (!autoAcceptEnabled) return false;
+
+    const normalizedInviter = normalizeShip(inviterShip);
+
+    // Check blocklist first (blocklist takes priority)
+    if (account.inviteBlocklist.length > 0) {
+      const normalizedBlocklist = account.inviteBlocklist.map(normalizeShip);
+      if (normalizedBlocklist.includes(normalizedInviter)) {
+        runtime.log?.(`[tlon] Invite from ${inviterShip} blocked by blocklist`);
+        return false;
+      }
+    }
+
+    // If allowlist is set, only accept from those ships
+    if (account.inviteAllowlist.length > 0) {
+      const normalizedAllowlist = account.inviteAllowlist.map(normalizeShip);
+      if (!normalizedAllowlist.includes(normalizedInviter)) {
+        runtime.log?.(`[tlon] Invite from ${inviterShip} not in allowlist, skipping`);
+        return false;
+      }
+    }
+
+    return true;
+  }
+
+  // Handle incoming foreign groups updates (includes invites)
+  async function handleForeignGroupsUpdate(update: any) {
+    try {
+      if (!update || typeof update !== "object") return;
+
+      for (const [groupId, foreignData] of Object.entries(update)) {
+        if (!foreignData || typeof foreignData !== "object") continue;
+
+        const foreign = foreignData as {
+          invites?: Array<{ from: string; valid: boolean; time?: number }>;
+        };
+
+        const validInvites = foreign.invites?.filter((inv) => inv.valid) ?? [];
+        if (validInvites.length === 0) continue;
+
+        for (const invite of validInvites) {
+          const inviteKey = `${groupId}:${invite.from}:${invite.time ?? "unknown"}`;
+          if (processedInvites.has(inviteKey)) continue;
+          processedInvites.add(inviteKey);
+
+          runtime.log?.(`[tlon] Received group invite: ${groupId} from ${invite.from}`);
+
+          if (shouldAutoAcceptInvite(invite.from, true)) {
+            try {
+              runtime.log?.(`[tlon] Auto-accepting invite to ${groupId} from ${invite.from}`);
+              await acceptGroupInvite(api!, groupId);
+              runtime.log?.(`[tlon] Successfully joined group ${groupId}`);
+
+              setTimeout(() => {
+                refreshChannelSubscriptions().catch((error) => {
+                  runtime.error?.(`[tlon] Failed to refresh channels after join: ${error?.message ?? String(error)}`);
+                });
+              }, 2000);
+            } catch (error: any) {
+              runtime.error?.(`[tlon] Failed to accept invite to ${groupId}: ${error?.message ?? String(error)}`);
+            }
+          } else {
+            runtime.log?.(`[tlon] Invite to ${groupId} not auto-accepted (auto-accept disabled or filtered)`);
+          }
+        }
+      }
+    } catch (error: any) {
+      runtime.error?.(`[tlon] Error handling foreign groups update: ${error?.message ?? String(error)}`);
+    }
+  }
+
+  // Subscribe to foreign groups updates to detect invites
+  let foreignGroupsSubscribed = false;
+  async function subscribeToForeignGroups() {
+    if (foreignGroupsSubscribed) return;
+    if (!account.autoAcceptGroupInvites) {
+      runtime.log?.("[tlon] Auto-accept group invites disabled, skipping foreign groups subscription");
+      return;
+    }
+
+    try {
+      await api!.subscribe({
+        app: "groups",
+        path: "/v1/foreigns",
+        event: handleForeignGroupsUpdate,
+        err: (error) => {
+          runtime.error?.(`[tlon] Foreign groups subscription error: ${String(error)}`);
+        },
+        quit: () => {
+          runtime.log?.("[tlon] Foreign groups subscription ended");
+          foreignGroupsSubscribed = false;
+        },
+      });
+      foreignGroupsSubscribed = true;
+      runtime.log?.("[tlon] Subscribed to foreign groups (invite detection enabled)");
+    } catch (error: any) {
+      runtime.error?.(`[tlon] Failed to subscribe to foreign groups: ${error?.message ?? String(error)}`);
+    }
+  }
+
+  // Handle incoming DM invite updates from /v3 subscription
+  async function handleDmInviteUpdate(update: any) {
+    try {
+      if (!update || typeof update !== "object") return;
+
+      let pendingShips: string[] = [];
+
+      if (Array.isArray(update)) {
+        pendingShips = update.filter((item) => typeof item === "string");
+      } else if (update.ship && update.pending) {
+        pendingShips = [update.ship];
+      }
+
+      for (const ship of pendingShips) {
+        const normalizedShip = normalizeShip(ship);
+        if (processedDmInvites.has(normalizedShip)) continue;
+        processedDmInvites.add(normalizedShip);
+
+        runtime.log?.(`[tlon] Received DM invite from ${normalizedShip}`);
+
+        if (shouldAutoAcceptInvite(normalizedShip, false)) {
+          try {
+            runtime.log?.(`[tlon] Auto-accepting DM invite from ${normalizedShip}`);
+            await acceptDmInvite(api!, normalizedShip);
+            runtime.log?.(`[tlon] Successfully accepted DM from ${normalizedShip}`);
+
+            setTimeout(() => {
+              subscribeToDM(normalizedShip).catch((error) => {
+                runtime.error?.(`[tlon] Failed to subscribe to new DM: ${error?.message ?? String(error)}`);
+              });
+            }, 1000);
+          } catch (error: any) {
+            runtime.error?.(`[tlon] Failed to accept DM invite from ${normalizedShip}: ${error?.message ?? String(error)}`);
+          }
+        } else {
+          runtime.log?.(`[tlon] DM invite from ${normalizedShip} not auto-accepted (auto-accept disabled or filtered)`);
+        }
+      }
+    } catch (error: any) {
+      runtime.error?.(`[tlon] Error handling DM invite update: ${error?.message ?? String(error)}`);
+    }
+  }
+
+  // Subscribe to chat updates for DM invite detection
+  let dmInvitesSubscribed = false;
+  async function subscribeToDmInvites() {
+    if (dmInvitesSubscribed) return;
+    if (!account.autoAcceptDmInvites) {
+      runtime.log?.("[tlon] Auto-accept DM invites disabled, skipping DM invite subscription");
+      return;
+    }
+
+    try {
+      await api!.subscribe({
+        app: "chat",
+        path: "/v3",
+        event: handleDmInviteUpdate,
+        err: (error) => {
+          runtime.error?.(`[tlon] DM invite subscription error: ${String(error)}`);
+        },
+        quit: () => {
+          runtime.log?.("[tlon] DM invite subscription ended");
+          dmInvitesSubscribed = false;
+        },
+      });
+      dmInvitesSubscribed = true;
+      runtime.log?.("[tlon] Subscribed to chat updates (DM invite detection enabled)");
+    } catch (error: any) {
+      runtime.error?.(`[tlon] Failed to subscribe to DM invites: ${error?.message ?? String(error)}`);
+    }
+  }
+
   async function refreshChannelSubscriptions() {
     try {
       const dmShips = await api!.scry("/chat/dm.json");
@@ -465,6 +644,12 @@ export async function monitorTlonProvider(opts: MonitorTlonOpts = {}): Promise<v
       await subscribeToChannel(channelNest);
     }
 
+    // Subscribe to foreign groups for invite detection (if auto-accept enabled)
+    await subscribeToForeignGroups();
+
+    // Subscribe to DM invites (if auto-accept enabled)
+    await subscribeToDmInvites();
+
     runtime.log?.("[tlon] All subscriptions registered, connecting to SSE stream...");
     await api!.connect();
     runtime.log?.("[tlon] Connected! All subscriptions active");
diff --git a/extensions/tlon/src/types.ts b/extensions/tlon/src/types.ts
index 47595df7b..ee9cd69ec 100644
--- a/extensions/tlon/src/types.ts
+++ b/extensions/tlon/src/types.ts
@@ -12,6 +12,11 @@ export type TlonResolvedAccount = {
   dmAllowlist: string[];
   autoDiscoverChannels: boolean | null;
   showModelSignature: boolean | null;
+  // Auto-accept invites settings
+  autoAcceptGroupInvites: boolean | null;
+  autoAcceptDmInvites: boolean | null;
+  inviteAllowlist: string[];
+  inviteBlocklist: string[];
 };
 
 export function resolveTlonAccount(cfg: ClawdbotConfig, accountId?: string | null): TlonResolvedAccount {
@@ -26,6 +31,10 @@ export function resolveTlonAccount(cfg: ClawdbotConfig, accountId?: string | nul
         dmAllowlist?: string[];
         autoDiscoverChannels?: boolean;
         showModelSignature?: boolean;
+        autoAcceptGroupInvites?: boolean;
+        autoAcceptDmInvites?: boolean;
+        inviteAllowlist?: string[];
+        inviteBlocklist?: string[];
         accounts?: Record<string, Record<string, unknown>>;
       }
     | undefined;
@@ -43,6 +52,10 @@ export function resolveTlonAccount(cfg: ClawdbotConfig, accountId?: string | nul
       dmAllowlist: [],
       autoDiscoverChannels: null,
       showModelSignature: null,
+      autoAcceptGroupInvites: null,
+      autoAcceptDmInvites: null,
+      inviteAllowlist: [],
+      inviteBlocklist: [],
     };
   }
 
@@ -58,6 +71,12 @@ export function resolveTlonAccount(cfg: ClawdbotConfig, accountId?: string | nul
     (account?.autoDiscoverChannels ?? base.autoDiscoverChannels ?? null) as boolean | null;
   const showModelSignature =
     (account?.showModelSignature ?? base.showModelSignature ?? null) as boolean | null;
+  const autoAcceptGroupInvites =
+    (account?.autoAcceptGroupInvites ?? base.autoAcceptGroupInvites ?? null) as boolean | null;
+  const autoAcceptDmInvites =
+    (account?.autoAcceptDmInvites ?? base.autoAcceptDmInvites ?? null) as boolean | null;
+  const inviteAllowlist = (account?.inviteAllowlist ?? base.inviteAllowlist ?? []) as string[];
+  const inviteBlocklist = (account?.inviteBlocklist ?? base.inviteBlocklist ?? []) as string[];
   const configured = Boolean(ship && url && code);
 
   return {
@@ -72,6 +91,10 @@ export function resolveTlonAccount(cfg: ClawdbotConfig, accountId?: string | nul
     dmAllowlist,
     autoDiscoverChannels,
     showModelSignature,
+    autoAcceptGroupInvites,
+    autoAcceptDmInvites,
+    inviteAllowlist,
+    inviteBlocklist,
   };
 }
 
diff --git a/extensions/tlon/src/urbit/send.ts b/extensions/tlon/src/urbit/send.ts
index 35f7f2d74..276f2fa3e 100644
--- a/extensions/tlon/src/urbit/send.ts
+++ b/extensions/tlon/src/urbit/send.ts
@@ -112,3 +112,38 @@ export function buildMediaText(text: string | undefined, mediaUrl: string | unde
   if (cleanUrl) return cleanUrl;
   return cleanText;
 }
+
+// Accept a group invite by sending a group-join poke
+export async function acceptGroupInvite(api: TlonPokeApi, groupId: string): Promise<void> {
+  await api.poke({
+    app: "groups",
+    mark: "group-join",
+    json: {
+      flag: groupId,
+      "join-all": true,
+    },
+  });
+}
+
+// Decline a group invite
+export async function declineGroupInvite(api: TlonPokeApi, groupId: string): Promise<void> {
+  await api.poke({
+    app: "groups",
+    mark: "invite-decline",
+    json: groupId,
+  });
+}
+
+// Accept a DM invite by sending a chat-dm-rsvp poke
+export async function acceptDmInvite(api: TlonPokeApi, ship: string, accept: boolean = true): Promise<void> {
+  // Ship MUST have the ~ prefix for this poke
+  const shipName = ship.startsWith("~") ? ship : `~${ship}`;
+  await api.poke({
+    app: "chat",
+    mark: "chat-dm-rsvp",
+    json: {
+      ship: shipName,
+      ok: accept,
+    },
+  });
+}