diff --git a/CHANGELOG.md b/CHANGELOG.md
index f12365ebaef..1201879ae25 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -39,6 +39,7 @@ Docs: https://docs.openclaw.ai
 - Kimi Coding/Anthropic tools compatibility: normalize `anthropic-messages` tool payloads to OpenAI-style `tools[].function` + compatible `tool_choice` when targeting Kimi Coding endpoints, restoring tool-call workflows that regressed after v2026.3.2. (#37038) Thanks @mochimochimochi-hub.
 - Heartbeat/workspace-path guardrails: append explicit workspace `HEARTBEAT.md` path guidance (and `docs/heartbeat.md` avoidance) to heartbeat prompts so heartbeat runs target workspace checklists reliably across packaged install layouts. (#37037) Thanks @stofancy.
 - Subagents/kill-complete announce race: when a late `subagent-complete` lifecycle event arrives after an earlier kill marker, clear stale kill suppression/cleanup flags and re-run announce cleanup so finished runs no longer get silently swallowed. (#37024) Thanks @cmfinlan.
+- Cron/OpenAI Codex OAuth refresh hardening: when `openai-codex` token refresh fails specifically on account-id extraction, reuse the cached access token instead of failing the run immediately, with regression coverage to keep non-Codex and unrelated refresh failures unchanged. (#36604) Thanks @laulopezreal.
 - Gateway/remote WS break-glass hostname support: honor `OPENCLAW_ALLOW_INSECURE_PRIVATE_WS=1` for `ws://` hostname URLs (not only private IP literals) across onboarding validation and runtime gateway connection checks, while still rejecting public IP literals and non-unicast IPv6 endpoints. (#36930) Thanks @manju-rn.
 - Routing/binding lookup scalability: pre-index route bindings by channel/account and avoid full binding-list rescans on channel-account cache rollover, preventing multi-second `resolveAgentRoute` stalls in large binding configurations. (#36915) Thanks @songchenghao.
 - Browser/session cleanup: track browser tabs opened by session-scoped browser tool runs and close tracked tabs during `sessions.reset`/`sessions.delete` runtime cleanup, preventing orphaned tabs and unbounded browser memory growth after session teardown. (#36666) Thanks @Harnoor6693.
diff --git a/src/agents/auth-profiles/oauth.openai-codex-refresh-fallback.test.ts b/src/agents/auth-profiles/oauth.openai-codex-refresh-fallback.test.ts
new file mode 100644
index 00000000000..4fad1029035
--- /dev/null
+++ b/src/agents/auth-profiles/oauth.openai-codex-refresh-fallback.test.ts
@@ -0,0 +1,141 @@
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { captureEnv } from "../../test-utils/env.js";
+import { resolveApiKeyForProfile } from "./oauth.js";
+import {
+  clearRuntimeAuthProfileStoreSnapshots,
+  ensureAuthProfileStore,
+  saveAuthProfileStore,
+} from "./store.js";
+import type { AuthProfileStore } from "./types.js";
+
+const { getOAuthApiKeyMock } = vi.hoisted(() => ({
+  getOAuthApiKeyMock: vi.fn(async () => {
+    throw new Error("Failed to extract accountId from token");
+  }),
+}));
+
+vi.mock("@mariozechner/pi-ai", async () => {
+  const actual = await vi.importActual<typeof import("@mariozechner/pi-ai")>("@mariozechner/pi-ai");
+  return {
+    ...actual,
+    getOAuthApiKey: getOAuthApiKeyMock,
+    getOAuthProviders: () => [
+      { id: "openai-codex", envApiKey: "OPENAI_API_KEY", oauthTokenEnv: "OPENAI_OAUTH_TOKEN" },
+      { id: "anthropic", envApiKey: "ANTHROPIC_API_KEY", oauthTokenEnv: "ANTHROPIC_OAUTH_TOKEN" },
+    ],
+  };
+});
+
+function createExpiredOauthStore(params: {
+  profileId: string;
+  provider: string;
+  access?: string;
+}): AuthProfileStore {
+  return {
+    version: 1,
+    profiles: {
+      [params.profileId]: {
+        type: "oauth",
+        provider: params.provider,
+        access: params.access ?? "cached-access-token",
+        refresh: "refresh-token",
+        expires: Date.now() - 60_000,
+      },
+    },
+  };
+}
+
+describe("resolveApiKeyForProfile openai-codex refresh fallback", () => {
+  const envSnapshot = captureEnv([
+    "OPENCLAW_STATE_DIR",
+    "OPENCLAW_AGENT_DIR",
+    "PI_CODING_AGENT_DIR",
+  ]);
+  let tempRoot = "";
+  let agentDir = "";
+
+  beforeEach(async () => {
+    getOAuthApiKeyMock.mockClear();
+    clearRuntimeAuthProfileStoreSnapshots();
+    tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "openclaw-codex-refresh-fallback-"));
+    agentDir = path.join(tempRoot, "agents", "main", "agent");
+    await fs.mkdir(agentDir, { recursive: true });
+    process.env.OPENCLAW_STATE_DIR = tempRoot;
+    process.env.OPENCLAW_AGENT_DIR = agentDir;
+    process.env.PI_CODING_AGENT_DIR = agentDir;
+  });
+
+  afterEach(async () => {
+    clearRuntimeAuthProfileStoreSnapshots();
+    envSnapshot.restore();
+    await fs.rm(tempRoot, { recursive: true, force: true });
+  });
+
+  it("falls back to cached access token when openai-codex refresh fails on accountId extraction", async () => {
+    const profileId = "openai-codex:default";
+    saveAuthProfileStore(
+      createExpiredOauthStore({
+        profileId,
+        provider: "openai-codex",
+      }),
+      agentDir,
+    );
+
+    const result = await resolveApiKeyForProfile({
+      store: ensureAuthProfileStore(agentDir),
+      profileId,
+      agentDir,
+    });
+
+    expect(result).toEqual({
+      apiKey: "cached-access-token",
+      provider: "openai-codex",
+      email: undefined,
+    });
+    expect(getOAuthApiKeyMock).toHaveBeenCalledTimes(1);
+  });
+
+  it("keeps throwing for non-codex providers on the same refresh error", async () => {
+    const profileId = "anthropic:default";
+    saveAuthProfileStore(
+      createExpiredOauthStore({
+        profileId,
+        provider: "anthropic",
+      }),
+      agentDir,
+    );
+
+    await expect(
+      resolveApiKeyForProfile({
+        store: ensureAuthProfileStore(agentDir),
+        profileId,
+        agentDir,
+      }),
+    ).rejects.toThrow(/OAuth token refresh failed for anthropic/);
+  });
+
+  it("does not use fallback for unrelated openai-codex refresh errors", async () => {
+    const profileId = "openai-codex:default";
+    saveAuthProfileStore(
+      createExpiredOauthStore({
+        profileId,
+        provider: "openai-codex",
+      }),
+      agentDir,
+    );
+    getOAuthApiKeyMock.mockImplementationOnce(async () => {
+      throw new Error("invalid_grant");
+    });
+
+    await expect(
+      resolveApiKeyForProfile({
+        store: ensureAuthProfileStore(agentDir),
+        profileId,
+        agentDir,
+      }),
+    ).rejects.toThrow(/OAuth token refresh failed for openai-codex/);
+  });
+});
diff --git a/src/agents/auth-profiles/oauth.ts b/src/agents/auth-profiles/oauth.ts
index 27ecab8ad32..6f2061501b6 100644
--- a/src/agents/auth-profiles/oauth.ts
+++ b/src/agents/auth-profiles/oauth.ts
@@ -10,6 +10,7 @@ import { withFileLock } from "../../infra/file-lock.js";
 import { refreshQwenPortalCredentials } from "../../providers/qwen-portal-oauth.js";
 import { resolveSecretRefString, type SecretRefResolveCache } from "../../secrets/resolve.js";
 import { refreshChutesTokens } from "../chutes-oauth.js";
+import { normalizeProviderId } from "../model-selection.js";
 import { AUTH_STORE_LOCK_OPTIONS, log } from "./constants.js";
 import { resolveTokenExpiryState } from "./credential-state.js";
 import { formatAuthDoctorHint } from "./doctor.js";
@@ -87,6 +88,27 @@ function buildOAuthProfileResult(params: {
   });
 }
 
+function extractErrorMessage(error: unknown): string {
+  return error instanceof Error ? error.message : String(error);
+}
+
+function shouldUseOpenaiCodexRefreshFallback(params: {
+  provider: string;
+  credentials: OAuthCredentials;
+  error: unknown;
+}): boolean {
+  if (normalizeProviderId(params.provider) !== "openai-codex") {
+    return false;
+  }
+  const message = extractErrorMessage(params.error);
+  if (!/extract\s+accountid\s+from\s+token/i.test(message)) {
+    return false;
+  }
+  return (
+    typeof params.credentials.access === "string" && params.credentials.access.trim().length > 0
+  );
+}
+
 type ResolveApiKeyForProfileParams = {
   cfg?: OpenClawConfig;
   store: AuthProfileStore;
@@ -434,7 +456,25 @@ export async function resolveApiKeyForProfile(
       }
     }
 
-    const message = error instanceof Error ? error.message : String(error);
+    if (
+      shouldUseOpenaiCodexRefreshFallback({
+        provider: cred.provider,
+        credentials: cred,
+        error,
+      })
+    ) {
+      log.warn("openai-codex oauth refresh failed; using cached access token fallback", {
+        profileId,
+        provider: cred.provider,
+      });
+      return buildApiKeyProfileResult({
+        apiKey: cred.access,
+        provider: cred.provider,
+        email: cred.email,
+      });
+    }
+
+    const message = extractErrorMessage(error);
     const hint = formatAuthDoctorHint({
       cfg,
       store: refreshedStore,