diff --git a/packages/schemas/src/foundations/jsonb-types/oidc-module.ts b/packages/schemas/src/foundations/jsonb-types/oidc-module.ts
index 6fba58531..b82f03cd8 100644
--- a/packages/schemas/src/foundations/jsonb-types/oidc-module.ts
+++ b/packages/schemas/src/foundations/jsonb-types/oidc-module.ts
@@ -1,6 +1,7 @@
 import { validateRedirectUrl } from '@logto/core-kit';
 import { z } from 'zod';
 
+import { GrantType, ResponseType } from '../../types/oidc-config.js';
 import { type ToZodObject } from '../../utils/zod.js';
 
 export const oidcModelInstancePayloadGuard = z
@@ -21,7 +22,7 @@ export type OidcClientMetadata = {
   /**
    * The redirect URIs that the client is allowed to use.
    *
-   * @see {@link https://openid.net/specs/openid-connect-registration-1_0.html#ClientMetadata | OpenID Connect Dynamic Client Registration 1.0}
+   * @see {@link https://openid.net/specs/openid-connect-registration-1_0.html#ClientMetadata | OpenID Connect Registration 1.0}
    */
   redirectUris: string[];
   /**
@@ -43,6 +44,18 @@ export type OidcClientMetadata = {
    */
   backchannelLogoutSessionRequired?: boolean;
   logoUri?: string;
+  /**
+   * The allowed grant types for the client.
+   *
+   * @see {@link https://openid.net/specs/openid-connect-core-1_0.html#ClientMetadata | OpenID Connect Registration 1.0}
+   */
+  grantTypes?: GrantType[];
+  /**
+   * The allowed response types for the client.
+   *
+   * @see {@link https://openid.net/specs/openid-connect-core-1_0.html#ClientMetadata | OpenID Connect Registration 1.0}
+   */
+  responseTypes?: ResponseType[];
 };
 
 export const oidcClientMetadataGuard = z.object({
@@ -55,6 +68,8 @@ export const oidcClientMetadataGuard = z.object({
   backchannelLogoutUri: z.string().url().optional(),
   backchannelLogoutSessionRequired: z.boolean().optional(),
   logoUri: z.string().optional(),
+  grantTypes: z.nativeEnum(GrantType).array().optional(),
+  responseTypes: z.nativeEnum(ResponseType).array().optional(),
 }) satisfies ToZodObject<OidcClientMetadata>;
 
 export enum CustomClientMetadataKey {
diff --git a/packages/schemas/src/types/oidc-config.ts b/packages/schemas/src/types/oidc-config.ts
index 0cc5de133..7da52d3b4 100644
--- a/packages/schemas/src/types/oidc-config.ts
+++ b/packages/schemas/src/types/oidc-config.ts
@@ -13,4 +13,14 @@ export enum GrantType {
   RefreshToken = 'refresh_token',
   ClientCredentials = 'client_credentials',
   TokenExchange = 'urn:ietf:params:oauth:grant-type:token-exchange',
+  Implicit = 'implicit',
+}
+
+export enum ResponseType {
+  /** Authorization code flow */
+  Code = 'code',
+  /** Implicit flow */
+  IdToken = 'id_token',
+  /** Hybrid flow */
+  HybridIdToken = 'code id_token',
 }