diff --git a/.changeset/warm-steaks-count.md b/.changeset/warm-steaks-count.md
new file mode 100644
index 00000000000..e93dc1b6137
--- /dev/null
+++ b/.changeset/warm-steaks-count.md
@@ -0,0 +1,5 @@
+---
+'@clerk/backend': minor
+---
+
+Export missing Billing types
diff --git a/packages/backend/src/index.ts b/packages/backend/src/index.ts
index e8215708399..4a65fe0096b 100644
--- a/packages/backend/src/index.ts
+++ b/packages/backend/src/index.ts
@@ -100,9 +100,13 @@ export type {
   PaginatedResponseJSON,
   TestingTokenJSON,
   WebhooksSvixJSON,
+  BillingPayerJSON,
   BillingPlanJSON,
   BillingSubscriptionJSON,
   BillingSubscriptionItemJSON,
+  BillingPaymentAttemptWebhookEventJSON,
+  BillingSubscriptionItemWebhookEventJSON,
+  BillingSubscriptionWebhookEventJSON,
 } from './api/resources/JSON';
 
 /**
diff --git a/packages/clerk-js/src/core/resources/SignIn.ts b/packages/clerk-js/src/core/resources/SignIn.ts
index cb7832dbb90..8ff288a3e1a 100644
--- a/packages/clerk-js/src/core/resources/SignIn.ts
+++ b/packages/clerk-js/src/core/resources/SignIn.ts
@@ -1,6 +1,24 @@
 import { inBrowser } from '@clerk/shared/browser';
 import { ClerkWebAuthnError } from '@clerk/shared/error';
 import { Poller } from '@clerk/shared/poller';
+import type {
+  SignInFutureBackupCodeVerifyParams,
+  SignInFutureCreateParams,
+  SignInFutureEmailCodeSendParams,
+  SignInFutureEmailCodeVerifyParams,
+  SignInFutureEmailLinkSendParams,
+  SignInFutureFinalizeParams,
+  SignInFutureMFAPhoneCodeVerifyParams,
+  SignInFuturePasswordParams,
+  SignInFuturePhoneCodeSendParams,
+  SignInFuturePhoneCodeVerifyParams,
+  SignInFutureResetPasswordSubmitParams,
+  SignInFutureResource,
+  SignInFutureSSOParams,
+  SignInFutureTicketParams,
+  SignInFutureTOTPVerifyParams,
+  SignInFutureWeb3Params,
+} from '@clerk/shared/types';
 import { deepCamelToSnake, deepSnakeToCamel } from '@clerk/shared/underscore';
 import {
   isWebAuthnAutofillSupported as isWebAuthnAutofillSupportedOnWindow,
@@ -31,22 +49,6 @@ import type {
   SamlConfig,
   SignInCreateParams,
   SignInFirstFactor,
-  SignInFutureBackupCodeVerifyParams,
-  SignInFutureCreateParams,
-  SignInFutureEmailCodeSendParams,
-  SignInFutureEmailCodeVerifyParams,
-  SignInFutureEmailLinkSendParams,
-  SignInFutureFinalizeParams,
-  SignInFutureMFAPhoneCodeVerifyParams,
-  SignInFuturePasswordParams,
-  SignInFuturePhoneCodeSendParams,
-  SignInFuturePhoneCodeVerifyParams,
-  SignInFutureResetPasswordSubmitParams,
-  SignInFutureResource,
-  SignInFutureSSOParams,
-  SignInFutureTicketParams,
-  SignInFutureTOTPVerifyParams,
-  SignInFutureWeb3Params,
   SignInIdentifier,
   SignInJSON,
   SignInJSONSnapshot,
diff --git a/packages/clerk-js/src/core/signals.ts b/packages/clerk-js/src/core/signals.ts
index 815cfb7acff..85dbae75ef2 100644
--- a/packages/clerk-js/src/core/signals.ts
+++ b/packages/clerk-js/src/core/signals.ts
@@ -1,6 +1,7 @@
 import { isClerkAPIResponseError } from '@clerk/shared/error';
+import { createClerkGlobalHookError } from '@clerk/shared/experimental-error';
+import type { Errors, SignInSignal, SignUpSignal } from '@clerk/shared/types';
 import { snakeToCamel } from '@clerk/shared/underscore';
-import type { Errors, SignInSignal, SignUpSignal } from '@clerk/types';
 import { computed, signal } from 'alien-signals';
 
 import type { SignIn } from './resources/SignIn';
@@ -62,7 +63,7 @@ function errorsToParsedErrors(error: unknown): Errors {
 
   if (!isClerkAPIResponseError(error)) {
     parsedErrors.raw = [error];
-    parsedErrors.global = [error];
+    parsedErrors.global = [createClerkGlobalHookError(error)];
     return parsedErrors;
   }
 
@@ -80,9 +81,9 @@ function errorsToParsedErrors(error: unknown): Errors {
     }
 
     if (parsedErrors.global) {
-      parsedErrors.global.push(error);
+      parsedErrors.global.push(createClerkGlobalHookError(error));
     } else {
-      parsedErrors.global = [error];
+      parsedErrors.global = [createClerkGlobalHookError(error)];
     }
   });
 
diff --git a/packages/clerk-js/src/core/state.ts b/packages/clerk-js/src/core/state.ts
index 5746ed17d98..82fed3485ac 100644
--- a/packages/clerk-js/src/core/state.ts
+++ b/packages/clerk-js/src/core/state.ts
@@ -1,4 +1,4 @@
-import type { State as StateInterface } from '@clerk/types';
+import type { State as StateInterface } from '@clerk/shared/types';
 import { computed, effect } from 'alien-signals';
 
 import { eventBus } from './events';
diff --git a/packages/react/src/hooks/useClerkSignal.ts b/packages/react/src/hooks/useClerkSignal.ts
index 3be64283c53..0dae7d8c563 100644
--- a/packages/react/src/hooks/useClerkSignal.ts
+++ b/packages/react/src/hooks/useClerkSignal.ts
@@ -1,4 +1,4 @@
-import type { SignInSignalValue, SignUpSignalValue } from '@clerk/types';
+import type { SignInSignalValue, SignUpSignalValue } from '@clerk/shared/types';
 import { useCallback, useSyncExternalStore } from 'react';
 
 import { useIsomorphicClerkContext } from '../contexts/IsomorphicClerkContext';
diff --git a/packages/shared/package.json b/packages/shared/package.json
index ae12bc4087b..67addd7654e 100644
--- a/packages/shared/package.json
+++ b/packages/shared/package.json
@@ -70,6 +70,24 @@
         "default": "./dist/dom/index.js"
       }
     },
+    "./experimental-error": {
+      "import": {
+        "types": "./dist/experimental-error/index.d.mts",
+        "default": "./dist/experimental-error/index.mjs"
+      },
+      "require": {
+        "types": "./dist/experimental-error/index.d.ts",
+        "default": "./dist/experimental-error/index.js"
+      }
+    },
+    "./types": {
+      "import": {
+        "types": "./dist/types/index.d.mts"
+      },
+      "require": {
+        "types": "./dist/types/index.d.ts"
+      }
+    },
     "./package.json": "./package.json"
   },
   "main": "./dist/index.js",
@@ -87,6 +105,7 @@
     "deriveState",
     "dom",
     "error",
+    "experimental-error",
     "file",
     "globs",
     "handleValueOrFn",
@@ -123,7 +142,8 @@
     "eventBus",
     "netlifyCacheHandler",
     "clerkEventBus",
-    "phoneCodeChannel"
+    "phoneCodeChannel",
+    "types"
   ],
   "scripts": {
     "build": "tsup",
diff --git a/packages/shared/src/errors/apiResponseError.ts b/packages/shared/src/errors/apiResponseError.ts
index e3541649735..e60d15b7cc5 100644
--- a/packages/shared/src/errors/apiResponseError.ts
+++ b/packages/shared/src/errors/apiResponseError.ts
@@ -6,7 +6,7 @@ import type {
 
 import { parseErrors } from './parseError';
 
-interface ClerkAPIResponseOptions {
+export interface ClerkAPIResponseOptions {
   data: ClerkAPIErrorJSON[];
   status: number;
   clerkTraceId?: string;
diff --git a/packages/shared/src/errors/parseError.ts b/packages/shared/src/errors/parseError.ts
index ee343bbbb5a..9191c58683c 100644
--- a/packages/shared/src/errors/parseError.ts
+++ b/packages/shared/src/errors/parseError.ts
@@ -19,6 +19,7 @@ export function parseError(error: ClerkAPIErrorJSON): ClerkAPIError {
     code: error.code,
     message: error.message,
     longMessage: error.long_message,
+    clerkTraceId: error.clerk_trace_id,
     meta: {
       paramName: error?.meta?.param_name,
       sessionId: error?.meta?.session_id,
diff --git a/packages/shared/src/experimental-error/clerkApiError.ts b/packages/shared/src/experimental-error/clerkApiError.ts
new file mode 100644
index 00000000000..261ebf192a9
--- /dev/null
+++ b/packages/shared/src/experimental-error/clerkApiError.ts
@@ -0,0 +1,31 @@
+import type { ClerkAPIErrorJSON } from '@clerk/types';
+
+import { parseError } from '../errors/parseError';
+
+export type ClerkApiErrorMeta = Record<string, unknown> | undefined;
+
+/**
+ * This error contains the specific error message, code, and any additional metadata that was returned by the Clerk API.
+ */
+export class ClerkApiError<Meta extends ClerkApiErrorMeta = undefined> {
+  readonly name = 'ClerkApiError';
+  readonly code: string;
+  readonly message: string;
+  readonly longMessage: string | undefined;
+  readonly meta: Meta;
+
+  constructor(json: ClerkAPIErrorJSON) {
+    const parsedError = parseError(json);
+    this.code = parsedError.code;
+    this.message = parsedError.message;
+    this.longMessage = parsedError.longMessage;
+    this.meta = json.meta as Meta;
+  }
+}
+
+/**
+ * Type guard to check if a value is a ClerkApiError instance.
+ */
+export function isClerkApiError(error: Error): error is ClerkApiError {
+  return error instanceof ClerkApiError;
+}
diff --git a/packages/shared/src/experimental-error/clerkApiErrorResponse.ts b/packages/shared/src/experimental-error/clerkApiErrorResponse.ts
new file mode 100644
index 00000000000..2aa9b5f8e42
--- /dev/null
+++ b/packages/shared/src/experimental-error/clerkApiErrorResponse.ts
@@ -0,0 +1,50 @@
+/* eslint-disable jsdoc/require-jsdoc */
+import type { ClerkApiErrorResponseJSON } from '@clerk/types';
+
+import { ClerkApiError } from './clerkApiError';
+import { ClerkError } from './clerkError';
+
+type ClerkApiResponseErrorParams = ClerkApiErrorResponseJSON & {
+  retryAfter?: number;
+};
+
+/**
+ * A ClerkError subclass that represents the shell response of a Clerk API error.
+ * This error contains an array of ClerkApiError instances, each representing a specific error that occurred.
+ */
+export class ClerkApiResponseError<E extends ClerkApiError = ClerkApiError> extends ClerkError {
+  readonly name = 'ClerkApiResponseError';
+  readonly retryAfter?: number;
+  readonly errors: E[];
+  readonly clerkTraceId: string | undefined;
+
+  constructor(data: ClerkApiResponseErrorParams) {
+    const errorMesages = data.errors.map(e => e.message).join(', ');
+    const message = `Api errors occurred: ${errorMesages}. Check the \`errors\` property for more details about the specific errors.`;
+    super({ message, code: 'clerk_api_error' });
+    this.errors = data.errors.map(e => new ClerkApiError(e)) as E[];
+    this.clerkTraceId = data.clerk_trace_id;
+    this.retryAfter = data.retryAfter;
+  }
+}
+
+/**
+ * Type guard to check if an error is a ClerkApiResponseError.
+ * Can be called as a standalone function or as a method on an error object.
+ *
+ * @example
+ * // As a standalone function
+ * if (isClerkApiResponseError(error)) { ... }
+ *
+ * // As a method (when attached to error object)
+ * if (error.isClerkApiResponseError()) { ... }
+ */
+export function isClerkApiResponseError(error: Error): error is ClerkApiResponseError;
+export function isClerkApiResponseError(this: Error): this is ClerkApiResponseError;
+export function isClerkApiResponseError(this: Error | void, error?: Error): error is ClerkApiResponseError {
+  const target = error ?? this;
+  if (!target) {
+    throw new TypeError('isClerkApiResponseError requires an error object');
+  }
+  return target instanceof ClerkApiResponseError;
+}
diff --git a/packages/shared/src/experimental-error/clerkApiErrors.ts b/packages/shared/src/experimental-error/clerkApiErrors.ts
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/packages/shared/src/experimental-error/clerkError.ts b/packages/shared/src/experimental-error/clerkError.ts
new file mode 100644
index 00000000000..761c8d58e3d
--- /dev/null
+++ b/packages/shared/src/experimental-error/clerkError.ts
@@ -0,0 +1,64 @@
+export interface ClerkErrorParams {
+  /**
+   * A message that describes the error. This is typically intented to be showed to the developers.
+   * It should not be shown to the user or parsed directly as the message contents are not guaranteed
+   * to be stable - use the `code` property instead.
+   */
+  message: string;
+  /**
+   * A machine-stable code that identifies the error.
+   */
+  code: string;
+  /**
+   * A user-friendly message that describes the error and can be displayed to the user.
+   * This message defaults to English but can be usually translated to the user's language
+   * by matching the `code` property to a localized message.
+   */
+  longMessage?: string;
+  /**
+   * The cause of the error, typically an `Error` instance that was caught and wrapped by the Clerk error handler.
+   */
+  cause?: Error;
+  /**
+   * A URL to the documentation for the error.
+   */
+  docsUrl?: string;
+}
+
+/**
+ * A temporary placeholder, this will eventually be replaced with a
+ * build-time flag that will actually perform DCE.
+ */
+const __DEV__ = true;
+
+export class ClerkError extends Error {
+  readonly clerkError = true as const;
+  readonly name: string = 'ClerkError';
+  readonly code: string;
+  readonly longMessage: string | undefined;
+  readonly docsUrl: string | undefined;
+  readonly cause: Error | undefined;
+
+  constructor(opts: ClerkErrorParams) {
+    const formatMessage = (msg: string, code: string, docsUrl: string | undefined) => {
+      msg = `${this.name}: ${msg.trim()}\n\n(code="${code}")\n\n`;
+      if (__DEV__) {
+        msg += `\n\nDocs: ${docsUrl}`;
+      }
+      return msg;
+    };
+
+    super(formatMessage(opts.message, opts.code, opts.docsUrl), { cause: opts.cause });
+    Object.setPrototypeOf(this, ClerkError.prototype);
+
+    this.code = opts.code;
+    this.docsUrl = opts.docsUrl;
+  }
+}
+
+/**
+ * Type guard to check if a value is a ClerkError instance.
+ */
+export function isClerkError(val: unknown): val is ClerkError {
+  return !!val && typeof val === 'object' && 'clerkError' in val && val.clerkError === true;
+}
diff --git a/packages/shared/src/experimental-error/clerkRuntimeError.ts b/packages/shared/src/experimental-error/clerkRuntimeError.ts
new file mode 100644
index 00000000000..317f9127332
--- /dev/null
+++ b/packages/shared/src/experimental-error/clerkRuntimeError.ts
@@ -0,0 +1,32 @@
+/* eslint-disable jsdoc/require-jsdoc */
+import type { ClerkErrorParams } from './clerkError';
+import { ClerkError } from './clerkError';
+
+export class ClerkRuntimeError extends ClerkError {
+  readonly name = 'ClerkRuntimeError';
+
+  constructor(params: ClerkErrorParams) {
+    super(params);
+  }
+}
+
+/**
+ * Type guard to check if an error is a ClerkRuntimeError.
+ * Can be called as a standalone function or as a method on an error object.
+ *
+ * @example
+ * // As a standalone function
+ * if (isClerkRuntimeError(error)) { ... }
+ *
+ * // As a method (when attached to error object)
+ * if (error.isClerkRuntimeError()) { ... }
+ */
+export function isClerkRuntimeError(error: Error): error is ClerkRuntimeError;
+export function isClerkRuntimeError(this: Error): this is ClerkRuntimeError;
+export function isClerkRuntimeError(this: Error | void, error?: Error): error is ClerkRuntimeError {
+  const target = error ?? this;
+  if (!target) {
+    throw new TypeError('isClerkRuntimeError requires an error object');
+  }
+  return target instanceof ClerkRuntimeError;
+}
diff --git a/packages/shared/src/experimental-error/globalHookError.ts b/packages/shared/src/experimental-error/globalHookError.ts
new file mode 100644
index 00000000000..825bd464059
--- /dev/null
+++ b/packages/shared/src/experimental-error/globalHookError.ts
@@ -0,0 +1,23 @@
+import { isClerkApiResponseError } from './clerkApiErrorResponse';
+import type { ClerkError } from './clerkError';
+import { isClerkRuntimeError } from './clerkRuntimeError';
+
+/**
+ * Creates a ClerkGlobalHookError object from a ClerkError instance.
+ * It's a wrapper for all the different instances of Clerk errors that can
+ * be returned when using Clerk hooks.
+ */
+export function createClerkGlobalHookError(error: ClerkError) {
+  const predicates = {
+    isClerkApiResponseError,
+    isClerkRuntimeError,
+  } as const;
+
+  for (const [name, fn] of Object.entries(predicates)) {
+    Object.assign(error, { [name]: fn });
+  }
+
+  return error as ClerkError & typeof predicates;
+}
+
+export type ClerkGlobalHookError = ReturnType<typeof createClerkGlobalHookError>;
diff --git a/packages/shared/src/experimental-error/index.ts b/packages/shared/src/experimental-error/index.ts
new file mode 100644
index 00000000000..71da1d6701d
--- /dev/null
+++ b/packages/shared/src/experimental-error/index.ts
@@ -0,0 +1,7 @@
+export { ClerkApiError, isClerkApiError } from './clerkApiError';
+export type { ClerkApiErrorMeta } from './clerkApiError';
+export { ClerkApiResponseError, isClerkApiResponseError } from './clerkApiErrorResponse';
+export { ClerkError, isClerkError, type ClerkErrorParams } from './clerkError';
+export { ClerkRuntimeError, isClerkRuntimeError } from './clerkRuntimeError';
+export { createClerkGlobalHookError } from './globalHookError';
+export type { ClerkGlobalHookError } from './globalHookError';
diff --git a/packages/shared/src/types/index.ts b/packages/shared/src/types/index.ts
new file mode 100644
index 00000000000..dd385989ef4
--- /dev/null
+++ b/packages/shared/src/types/index.ts
@@ -0,0 +1,31 @@
+export type {
+  Errors,
+  FieldError,
+  FieldErrors,
+  NullableSignInSignal,
+  NullableSignUpSignal,
+  SignInSignal,
+  SignInSignalValue,
+  SignUpSignal,
+  SignUpSignalValue,
+  State,
+} from './state';
+
+export type {
+  SignInFutureBackupCodeVerifyParams,
+  SignInFutureCreateParams,
+  SignInFutureEmailCodeSendParams,
+  SignInFutureEmailCodeVerifyParams,
+  SignInFutureEmailLinkSendParams,
+  SignInFutureFinalizeParams,
+  SignInFutureMFAPhoneCodeVerifyParams,
+  SignInFuturePasswordParams,
+  SignInFuturePhoneCodeSendParams,
+  SignInFuturePhoneCodeVerifyParams,
+  SignInFutureResetPasswordSubmitParams,
+  SignInFutureResource,
+  SignInFutureSSOParams,
+  SignInFutureTicketParams,
+  SignInFutureTOTPVerifyParams,
+  SignInFutureWeb3Params,
+} from './signInResource';
diff --git a/packages/types/src/signInFuture.ts b/packages/shared/src/types/signInResource.ts
similarity index 94%
rename from packages/types/src/signInFuture.ts
rename to packages/shared/src/types/signInResource.ts
index 90d76506880..e02e06ababb 100644
--- a/packages/types/src/signInFuture.ts
+++ b/packages/shared/src/types/signInResource.ts
@@ -1,8 +1,14 @@
-import type { SetActiveNavigate } from './clerk';
-import type { PhoneCodeChannel } from './phoneCodeChannel';
-import type { SignInFirstFactor, SignInSecondFactor, SignInStatus, UserData } from './signInCommon';
-import type { OAuthStrategy, Web3Strategy } from './strategies';
-import type { VerificationResource } from './verification';
+import type {
+  OAuthStrategy,
+  PhoneCodeChannel,
+  SetActiveNavigate,
+  SignInFirstFactor,
+  SignInSecondFactor,
+  SignInStatus,
+  UserData,
+  VerificationResource,
+  Web3Strategy,
+} from '@clerk/types';
 
 export interface SignInFutureCreateParams {
   identifier?: string;
@@ -123,9 +129,6 @@ export interface SignInFutureFinalizeParams {
   navigate?: SetActiveNavigate;
 }
 
-/**
- * The current active `SignIn` instance, for use in custom flows.
- */
 export interface SignInFutureResource {
   /**
    * The unique identifier for the current sign-in attempt.
diff --git a/packages/types/src/state.ts b/packages/shared/src/types/state.ts
similarity index 91%
rename from packages/types/src/state.ts
rename to packages/shared/src/types/state.ts
index 4438d92fe57..da8ff241c57 100644
--- a/packages/types/src/state.ts
+++ b/packages/shared/src/types/state.ts
@@ -1,5 +1,7 @@
-import type { SignInFutureResource } from './signInFuture';
-import type { SignUpFutureResource } from './signUpFuture';
+import type { SignUpFutureResource } from '@clerk/types';
+
+import type { ClerkGlobalHookError } from '../experimental-error';
+import type { SignInFutureResource } from './signInResource';
 
 /**
  * Represents an error on a specific field.
@@ -80,7 +82,7 @@ export interface Errors {
   /**
    * Parsed errors that are not related to any specific field.
    */
-  global: unknown[] | null; // does not include any errors that could be parsed as a field error
+  global: ClerkGlobalHookError[] | null; // does not include any errors that could be parsed as a field error
 }
 
 /**
@@ -143,7 +145,6 @@ export interface State {
    * An alias for `effect()` from `alien-signals`, which can be used to subscribe to changes from Signals.
    *
    * @see https://github.com/stackblitz/alien-signals#usage
-   * @experimental This experimental API is subject to change.
    */
   __internal_effect: (callback: () => void) => () => void;
 
@@ -152,7 +153,6 @@ export interface State {
    * its dependencies change.
    *
    * @see https://github.com/stackblitz/alien-signals#usage
-   * @experimental This experimental API is subject to change.
    */
   __internal_computed: <T>(getter: (previousValue?: T) => T) => () => T;
 }
diff --git a/packages/shared/subpaths.mjs b/packages/shared/subpaths.mjs
index da0b2fe9664..9327c9bc1ae 100644
--- a/packages/shared/subpaths.mjs
+++ b/packages/shared/subpaths.mjs
@@ -7,7 +7,7 @@ import packageJson from './package.json' with { type: 'json' };
  * When you add an entry to the package.json "files" field, a subfolder will be automatically created with a package.json pointing to that file
  */
 
-export const subpathFoldersBarrel = ['react', 'utils', 'workerTimers', 'dom'];
+export const subpathFoldersBarrel = ['react', 'utils', 'workerTimers', 'dom', 'experimental-error', 'types'];
 
 export const subpathNames = packageJson.files.filter(k => !['dist', 'scripts', ...subpathFoldersBarrel].includes(k));
 
diff --git a/packages/shared/tsup.config.ts b/packages/shared/tsup.config.ts
index 9d5b8e121c9..6aee96362a2 100644
--- a/packages/shared/tsup.config.ts
+++ b/packages/shared/tsup.config.ts
@@ -16,6 +16,8 @@ export default defineConfig(overrideOptions => {
       './src/utils/index.ts',
       './src/workerTimers/index.ts',
       './src/dom/*.ts',
+      './src/experimental-error/index.ts',
+      './src/types/index.ts',
       '!./src/**/*.test.{ts,tsx}',
     ],
     format: ['cjs', 'esm'],
diff --git a/packages/types/src/clerk.ts b/packages/types/src/clerk.ts
index 5140c03f27a..675eb275a31 100644
--- a/packages/types/src/clerk.ts
+++ b/packages/types/src/clerk.ts
@@ -1,4 +1,3 @@
-import type { ClerkAPIResponseError } from './api';
 import type { APIKeysNamespace } from './apiKeys';
 import type {
   APIKeysTheme,
@@ -32,6 +31,7 @@ import type {
 import type { ClientResource } from './client';
 import type { CustomMenuItem } from './customMenuItems';
 import type { CustomPage } from './customPages';
+import type { ClerkAPIResponseError } from './errors';
 import type { InstanceType } from './instance';
 import type { DisplayThemeJSON } from './json';
 import type { LocalizationResource } from './localization';
@@ -55,7 +55,6 @@ import type { SessionVerificationLevel } from './sessionVerification';
 import type { SignInResource } from './signIn';
 import type { SignUpResource } from './signUp';
 import type { ClientJSONSnapshot, EnvironmentJSONSnapshot } from './snapshots';
-import type { State } from './state';
 import type { Web3Strategy } from './strategies';
 import type { TelemetryCollector } from './telemetry';
 import type { UserResource } from './user';
@@ -236,7 +235,7 @@ export interface Clerk {
    *
    * @experimental This experimental API is subject to change.
    */
-  __internal_state: State;
+  __internal_state: any;
 
   /**
    * @experimental This is an experimental API for the Billing feature that is available under a public beta, and the API is subject to change. It is advised to [pin](https://clerk.com/docs/pinning) the SDK version and the clerk-js version to avoid breaking changes.
diff --git a/packages/types/src/api.ts b/packages/types/src/errors.ts
similarity index 56%
rename from packages/types/src/api.ts
rename to packages/types/src/errors.ts
index bd1c3cfc3c7..37a1199be99 100644
--- a/packages/types/src/api.ts
+++ b/packages/types/src/errors.ts
@@ -1,3 +1,58 @@
+import type { ClientJSON } from './json';
+
+// TODO: @nikos move this to shared
+export interface ClerkApiErrorResponseJSON {
+  errors: ClerkAPIErrorJSON[];
+  clerk_trace_id?: string;
+  meta?: { client?: ClientJSON };
+}
+
+// TODO: @nikos move this to shared
+export interface ClerkAPIErrorJSON {
+  code: string;
+  message: string;
+  long_message?: string;
+  clerk_trace_id?: string;
+  meta?: {
+    param_name?: string;
+    session_id?: string;
+    email_addresses?: string[];
+    identifiers?: string[];
+    zxcvbn?: {
+      suggestions: {
+        code: string;
+        message: string;
+      }[];
+    };
+    plan?: {
+      amount_formatted: string;
+      annual_monthly_amount_formatted: string;
+      currency_symbol: string;
+      id: string;
+      name: string;
+    };
+    is_plan_upgrade_possible?: boolean;
+  };
+}
+
+export interface ClerkRuntimeError {
+  code: string;
+  message: string;
+}
+
+/**
+ * TODO: @nikos
+ * Interface representing a Clerk API Response Error.
+ */
+export interface ClerkAPIResponseError extends Error {
+  clerkError: true;
+  status: number;
+  message: string;
+  clerkTraceId?: string;
+  retryAfter?: number;
+  errors: ClerkAPIError[];
+}
+
 /**
  * An interface that represents an error returned by the Clerk API.
  */
@@ -14,6 +69,10 @@ export interface ClerkAPIError {
    * A more detailed message that describes the error.
    */
   longMessage?: string;
+  /**
+   * A trace ID that can be used to identify the error in the Clerk API logs.
+   */
+  clerkTraceId?: string;
   /**
    * Additional information about the error.
    */
@@ -39,20 +98,3 @@ export interface ClerkAPIError {
     isPlanUpgradePossible?: boolean;
   };
 }
-
-export interface ClerkRuntimeError {
-  code: string;
-  message: string;
-}
-
-/**
- * Interface representing a Clerk API Response Error.
- */
-export interface ClerkAPIResponseError extends Error {
-  clerkError: true;
-  status: number;
-  message: string;
-  clerkTraceId?: string;
-  retryAfter?: number;
-  errors: ClerkAPIError[];
-}
diff --git a/packages/types/src/index.ts b/packages/types/src/index.ts
index b0f51eec6fc..0b52030e740 100644
--- a/packages/types/src/index.ts
+++ b/packages/types/src/index.ts
@@ -1,4 +1,3 @@
-export * from './api';
 export * from './apiKeys';
 export * from './apiKeysSettings';
 export * from './appearance';
@@ -53,6 +52,7 @@ export * from './router';
 /**
  * TODO @revamp-hooks: Drop this in the next major release.
  */
+export * from './errors';
 export * from './runtime-values';
 export * from './saml';
 export * from './samlAccount';
@@ -61,13 +61,11 @@ export * from './session';
 export * from './sessionVerification';
 export * from './signIn';
 export * from './signInCommon';
-export * from './signInFuture';
 export * from './signUp';
 export * from './signUpCommon';
 export * from './signUpFuture';
 export * from './snapshots';
 export * from './ssr';
-export * from './state';
 export * from './strategies';
 export * from './telemetry';
 export * from './theme';
diff --git a/packages/types/src/json.ts b/packages/types/src/json.ts
index c3ba98e95ab..4a71431fb0a 100644
--- a/packages/types/src/json.ts
+++ b/packages/types/src/json.ts
@@ -15,6 +15,7 @@ import type {
 import type { CommerceSettingsJSON } from './commerceSettings';
 import type { DisplayConfigJSON } from './displayConfig';
 import type { EnterpriseProtocol, EnterpriseProvider } from './enterpriseAccount';
+import type { ClerkAPIErrorJSON } from './errors';
 import type { EmailAddressIdentifier, UsernameIdentifier } from './identifiers';
 import type { ActClaim } from './jwtv2';
 import type { OAuthProvider } from './oauth';
@@ -373,32 +374,6 @@ export interface SignUpVerificationJSON extends VerificationJSON {
   channel?: PhoneCodeChannel;
 }
 
-export interface ClerkAPIErrorJSON {
-  code: string;
-  message: string;
-  long_message?: string;
-  meta?: {
-    param_name?: string;
-    session_id?: string;
-    email_addresses?: string[];
-    identifiers?: string[];
-    zxcvbn?: {
-      suggestions: {
-        code: string;
-        message: string;
-      }[];
-    };
-    plan?: {
-      amount_formatted: string;
-      annual_monthly_amount_formatted: string;
-      currency_symbol: string;
-      id: string;
-      name: string;
-    };
-    is_plan_upgrade_possible?: boolean;
-  };
-}
-
 export interface TokenJSON extends ClerkResourceJSON {
   object: 'token';
   jwt: string;
diff --git a/packages/types/src/signIn.ts b/packages/types/src/signIn.ts
index 6ffa69aa1fd..56ce7e7b8fd 100644
--- a/packages/types/src/signIn.ts
+++ b/packages/types/src/signIn.ts
@@ -23,7 +23,6 @@ import type {
   SignInStatus,
   UserData,
 } from './signInCommon';
-import type { SignInFutureResource } from './signInFuture';
 import type { SignInJSONSnapshot } from './snapshots';
 import type { CreateEmailLinkFlowReturn, VerificationResource } from './verification';
 import type { AuthenticateWithWeb3Params } from './web3Wallet';
@@ -87,7 +86,7 @@ export interface SignInResource extends ClerkResource {
   /**
    * @internal
    */
-  __internal_future: SignInFutureResource;
+  __internal_future: any;
 }
 
 export interface SignInJSON extends ClerkResourceJSON {
diff --git a/packages/types/src/verification.ts b/packages/types/src/verification.ts
index 2577bbf1b47..4f1d3fe0863 100644
--- a/packages/types/src/verification.ts
+++ b/packages/types/src/verification.ts
@@ -1,4 +1,4 @@
-import type { ClerkAPIError } from './api';
+import type { ClerkAPIError } from './errors';
 import type { PublicKeyCredentialCreationOptionsWithoutExtensions } from './passkey';
 import type { PhoneCodeChannel } from './phoneCodeChannel';
 import type { ClerkResource } from './resource';