diff --git a/packages/kbn-server-route-repository-client/index.ts b/packages/kbn-server-route-repository-client/index.ts
index d2572e009bd66..dc2fd26f4ef53 100644
--- a/packages/kbn-server-route-repository-client/index.ts
+++ b/packages/kbn-server-route-repository-client/index.ts
@@ -7,4 +7,10 @@
  */
 
 export { createRepositoryClient } from './src/create_repository_client';
-export type { DefaultClientOptions } from '@kbn/server-route-repository-utils';
+export { isHttpFetchError } from './src/is_http_fetch_error';
+
+export type {
+  DefaultClientOptions,
+  ClientRequestParamsOf,
+  RouteRepositoryClient,
+} from '@kbn/server-route-repository-utils';
diff --git a/packages/kbn-server-route-repository-client/src/is_http_fetch_error.ts b/packages/kbn-server-route-repository-client/src/is_http_fetch_error.ts
new file mode 100644
index 0000000000000..82d19cafb404e
--- /dev/null
+++ b/packages/kbn-server-route-repository-client/src/is_http_fetch_error.ts
@@ -0,0 +1,19 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+import { IHttpFetchError, isHttpFetchError as coreIsHttpFetchError } from '@kbn/core-http-browser';
+
+interface ErrorBody {
+  statusCode: number;
+  message: string;
+  error: string;
+}
+
+export function isHttpFetchError(error: unknown): error is IHttpFetchError<ErrorBody> {
+  return coreIsHttpFetchError(error);
+}
diff --git a/packages/kbn-server-route-repository-client/tsconfig.json b/packages/kbn-server-route-repository-client/tsconfig.json
index 8ef10ede60a1a..8e70ce9851750 100644
--- a/packages/kbn-server-route-repository-client/tsconfig.json
+++ b/packages/kbn-server-route-repository-client/tsconfig.json
@@ -16,5 +16,6 @@
   "kbn_references": [
     "@kbn/server-route-repository-utils",
     "@kbn/core-lifecycle-browser",
+    "@kbn/core-http-browser",
   ]
 }
diff --git a/packages/kbn-server-route-repository-utils/src/typings.ts b/packages/kbn-server-route-repository-utils/src/typings.ts
index ff93e760a580a..92580c852e40e 100644
--- a/packages/kbn-server-route-repository-utils/src/typings.ts
+++ b/packages/kbn-server-route-repository-utils/src/typings.ts
@@ -20,6 +20,38 @@ import { z } from '@kbn/zod';
 import * as t from 'io-ts';
 import { RequiredKeys } from 'utility-types';
 
+type PathMaybeOptional<T extends { path: Record<string, any> }> = RequiredKeys<
+  T['path']
+> extends never
+  ? { path?: T['path'] }
+  : { path: T['path'] };
+
+type QueryMaybeOptional<T extends { query: Record<string, any> }> = RequiredKeys<
+  T['query']
+> extends never
+  ? { query?: T['query'] }
+  : { query: T['query'] };
+
+type BodyMaybeOptional<T extends { body: Record<string, any> }> = RequiredKeys<
+  T['body']
+> extends never
+  ? { body?: T['body'] }
+  : { body: T['body'] };
+
+type ParamsMaybeOptional<
+  TPath extends Record<string, any>,
+  TQuery extends Record<string, any>,
+  TBody extends Record<string, any>
+> = PathMaybeOptional<{ path: TPath }> &
+  QueryMaybeOptional<{ query: TQuery }> &
+  BodyMaybeOptional<{ body: TBody }>;
+
+type ZodMaybeOptional<T extends { path: any; query: any; body: any }> = ParamsMaybeOptional<
+  T['path'],
+  T['query'],
+  T['body']
+>;
+
 type MaybeOptional<T extends { params: Record<string, any> }> = RequiredKeys<
   T['params']
 > extends never
@@ -93,7 +125,7 @@ type ClientRequestParamsOfType<TRouteParamsRT extends RouteParamsRT> =
       }>
     : TRouteParamsRT extends z.Schema
     ? MaybeOptional<{
-        params: z.TypeOf<TRouteParamsRT>;
+        params: ZodMaybeOptional<z.input<TRouteParamsRT>>;
       }>
     : {};
 
@@ -104,7 +136,7 @@ type DecodedRequestParamsOfType<TRouteParamsRT extends RouteParamsRT> =
       }>
     : TRouteParamsRT extends z.Schema
     ? MaybeOptional<{
-        params: z.TypeOf<TRouteParamsRT>;
+        params: ZodMaybeOptional<z.output<TRouteParamsRT>>;
       }>
     : {};
 
@@ -162,7 +194,7 @@ type MaybeOptionalArgs<T extends Record<string, any>> = RequiredKeys<T> extends
 
 export type RouteRepositoryClient<
   TServerRouteRepository extends ServerRouteRepository,
-  TAdditionalClientOptions extends Record<string, any>
+  TAdditionalClientOptions extends Record<string, any> = DefaultClientOptions
 > = <TEndpoint extends Extract<keyof TServerRouteRepository, string>>(
   endpoint: TEndpoint,
   ...args: MaybeOptionalArgs<
diff --git a/packages/kbn-server-route-repository/README.md b/packages/kbn-server-route-repository/README.md
index f42bfb4390a20..c34cf6654ba43 100644
--- a/packages/kbn-server-route-repository/README.md
+++ b/packages/kbn-server-route-repository/README.md
@@ -88,9 +88,7 @@ The client can be created either in `setup` or `start`.
 
 > browser/plugin.ts
 ```javascript
-import { isHttpFetchError } from '@kbn/core-http-browser';
-import { DefaultClientOptions } from '@kbn/server-route-repository-utils';
-import { createRepositoryClient } from '@kbn/server-route-repository-client';
+import { createRepositoryClient, isHttpFetchError, DefaultClientOptions } from '@kbn/server-route-repository-client';
 import type { MyPluginRouteRepository } from '../server/plugin';
 
 export type MyPluginRepositoryClient =