diff --git a/package.json b/package.json
index 37a4e595207..ba0c925fded 100644
--- a/package.json
+++ b/package.json
@@ -346,6 +346,10 @@
       "types": "./dist/plugin-sdk/zalouser.d.ts",
       "default": "./dist/plugin-sdk/zalouser.js"
     },
+    "./plugin-sdk/account-helpers": {
+      "types": "./dist/plugin-sdk/account-helpers.d.ts",
+      "default": "./dist/plugin-sdk/account-helpers.js"
+    },
     "./plugin-sdk/account-id": {
       "types": "./dist/plugin-sdk/account-id.d.ts",
       "default": "./dist/plugin-sdk/account-id.js"
diff --git a/scripts/lib/plugin-sdk-entrypoints.json b/scripts/lib/plugin-sdk-entrypoints.json
index c59e7930ba2..22152408e54 100644
--- a/scripts/lib/plugin-sdk-entrypoints.json
+++ b/scripts/lib/plugin-sdk-entrypoints.json
@@ -76,6 +76,7 @@
   "voice-call",
   "zalo",
   "zalouser",
+  "account-helpers",
   "account-id",
   "account-resolution",
   "allow-from",
diff --git a/src/plugin-sdk/account-helpers.ts b/src/plugin-sdk/account-helpers.ts
new file mode 100644
index 00000000000..5055e80571a
--- /dev/null
+++ b/src/plugin-sdk/account-helpers.ts
@@ -0,0 +1 @@
+export { createAccountListHelpers } from "../channels/plugins/account-helpers.js";
diff --git a/src/plugin-sdk/core.ts b/src/plugin-sdk/core.ts
index 7bec25a02cf..232989ebbfc 100644
--- a/src/plugin-sdk/core.ts
+++ b/src/plugin-sdk/core.ts
@@ -1,5 +1,11 @@
+import type {
+  ChannelMessagingAdapter,
+  ChannelOutboundSessionRoute,
+} from "../channels/plugins/types.core.js";
 import type { ChannelPlugin } from "../channels/plugins/types.plugin.js";
 import { getChatChannelMeta } from "../channels/registry.js";
+import type { OpenClawConfig } from "../config/config.js";
+import { buildOutboundBaseSessionKey } from "../infra/outbound/base-session-key.js";
 import { emptyPluginConfigSchema } from "../plugins/config-schema.js";
 import type { PluginRuntime } from "../plugins/runtime/types.js";
 import type {
@@ -49,6 +55,10 @@ export type {
 } from "../plugins/types.js";
 export type { OpenClawConfig } from "../config/config.js";
 export type { GatewayRequestHandlerOptions } from "../gateway/server-methods/types.js";
+export type {
+  ChannelOutboundSessionRoute,
+  ChannelMessagingAdapter,
+} from "../channels/plugins/types.core.js";
 export type {
   ProviderUsageSnapshot,
   UsageProviderId,
@@ -105,6 +115,54 @@ export { buildOutboundBaseSessionKey } from "../infra/outbound/base-session-key.
 export { normalizeOutboundThreadId } from "../infra/outbound/thread-id.js";
 export { resolveThreadSessionKeys } from "../routing/session-key.js";
 
+export type ChannelOutboundSessionRouteParams = Parameters<
+  NonNullable<ChannelMessagingAdapter["resolveOutboundSessionRoute"]>
+>[0];
+
+export function stripChannelTargetPrefix(raw: string, ...providers: string[]): string {
+  const trimmed = raw.trim();
+  for (const provider of providers) {
+    const prefix = `${provider.toLowerCase()}:`;
+    if (trimmed.toLowerCase().startsWith(prefix)) {
+      return trimmed.slice(prefix.length).trim();
+    }
+  }
+  return trimmed;
+}
+
+export function stripTargetKindPrefix(raw: string): string {
+  return raw.replace(/^(user|channel|group|conversation|room|dm):/i, "").trim();
+}
+
+export function buildChannelOutboundSessionRoute(params: {
+  cfg: OpenClawConfig;
+  agentId: string;
+  channel: string;
+  accountId?: string | null;
+  peer: { kind: "direct" | "group" | "channel"; id: string };
+  chatType: "direct" | "group" | "channel";
+  from: string;
+  to: string;
+  threadId?: string | number;
+}): ChannelOutboundSessionRoute {
+  const baseSessionKey = buildOutboundBaseSessionKey({
+    cfg: params.cfg,
+    agentId: params.agentId,
+    channel: params.channel,
+    accountId: params.accountId,
+    peer: params.peer,
+  });
+  return {
+    sessionKey: baseSessionKey,
+    baseSessionKey,
+    peer: params.peer,
+    chatType: params.chatType,
+    from: params.from,
+    to: params.to,
+    ...(params.threadId !== undefined ? { threadId: params.threadId } : {}),
+  };
+}
+
 type DefineChannelPluginEntryOptions<TPlugin extends ChannelPlugin = ChannelPlugin> = {
   id: string;
   name: string;
diff --git a/src/plugin-sdk/subpaths.test.ts b/src/plugin-sdk/subpaths.test.ts
index 052b9629421..1b31ed580e4 100644
--- a/src/plugin-sdk/subpaths.test.ts
+++ b/src/plugin-sdk/subpaths.test.ts
@@ -56,6 +56,7 @@ const matrixSdk = await import("openclaw/plugin-sdk/matrix");
 const mattermostSdk = await import("openclaw/plugin-sdk/mattermost");
 const nextcloudTalkSdk = await import("openclaw/plugin-sdk/nextcloud-talk");
 const twitchSdk = await import("openclaw/plugin-sdk/twitch");
+const accountHelpersSdk = await import("openclaw/plugin-sdk/account-helpers");
 
 describe("plugin-sdk subpath exports", () => {
   it("exports compat helpers", () => {
@@ -83,6 +84,10 @@ describe("plugin-sdk subpath exports", () => {
     expect(typeof routingSdk.resolveThreadSessionKeys).toBe("function");
   });
 
+  it("exports account helper builders from the dedicated subpath", () => {
+    expect(typeof accountHelpersSdk.createAccountListHelpers).toBe("function");
+  });
+
   it("exports runtime helpers from the dedicated subpath", () => {
     expect(typeof runtimeSdk.createLoggerBackedRuntime).toBe("function");
   });