diff --git a/docs/development/core/server/kibana-plugin-server.authenticationhandler.md b/docs/development/core/server/kibana-plugin-server.authenticationhandler.md
index 7ec9fd347baa4c..482ef44a6e4612 100644
--- a/docs/development/core/server/kibana-plugin-server.authenticationhandler.md
+++ b/docs/development/core/server/kibana-plugin-server.authenticationhandler.md
@@ -8,5 +8,5 @@
 <b>Signature:</b>
 
 ```typescript
-export declare type AuthenticationHandler<T> = (request: Request, sessionStorage: SessionStorage<T>, t: AuthToolkit) => AuthResult | Promise<AuthResult>;
+export declare type AuthenticationHandler<T> = (request: Readonly<Request>, sessionStorage: SessionStorage<T>, t: AuthToolkit) => AuthResult | Promise<AuthResult>;
 ```
diff --git a/docs/development/core/server/kibana-plugin-server.coresetup.http.md b/docs/development/core/server/kibana-plugin-server.coresetup.http.md
index 8cb25af29e4baa..2cf1f867a3dc72 100644
--- a/docs/development/core/server/kibana-plugin-server.coresetup.http.md
+++ b/docs/development/core/server/kibana-plugin-server.coresetup.http.md
@@ -11,7 +11,6 @@ http: {
         registerOnPreAuth: HttpServiceSetup['registerOnPreAuth'];
         registerAuth: HttpServiceSetup['registerAuth'];
         registerOnPostAuth: HttpServiceSetup['registerOnPostAuth'];
-        getBasePathFor: HttpServiceSetup['getBasePathFor'];
-        setBasePathFor: HttpServiceSetup['setBasePathFor'];
+        basePath: HttpServiceSetup['basePath'];
     };
 ```
diff --git a/docs/development/core/server/kibana-plugin-server.coresetup.md b/docs/development/core/server/kibana-plugin-server.coresetup.md
index 7b46817842defc..f94103ff635cdb 100644
--- a/docs/development/core/server/kibana-plugin-server.coresetup.md
+++ b/docs/development/core/server/kibana-plugin-server.coresetup.md
@@ -17,5 +17,5 @@ export interface CoreSetup
 |  Property | Type | Description |
 |  --- | --- | --- |
 |  [elasticsearch](./kibana-plugin-server.coresetup.elasticsearch.md) | <code>{`<p/>`        adminClient$: Observable&lt;ClusterClient&gt;;`<p/>`        dataClient$: Observable&lt;ClusterClient&gt;;`<p/>`    }</code> |  |
-|  [http](./kibana-plugin-server.coresetup.http.md) | <code>{`<p/>`        registerOnPreAuth: HttpServiceSetup['registerOnPreAuth'];`<p/>`        registerAuth: HttpServiceSetup['registerAuth'];`<p/>`        registerOnPostAuth: HttpServiceSetup['registerOnPostAuth'];`<p/>`        getBasePathFor: HttpServiceSetup['getBasePathFor'];`<p/>`        setBasePathFor: HttpServiceSetup['setBasePathFor'];`<p/>`    }</code> |  |
+|  [http](./kibana-plugin-server.coresetup.http.md) | <code>{`<p/>`        registerOnPreAuth: HttpServiceSetup['registerOnPreAuth'];`<p/>`        registerAuth: HttpServiceSetup['registerAuth'];`<p/>`        registerOnPostAuth: HttpServiceSetup['registerOnPostAuth'];`<p/>`        basePath: HttpServiceSetup['basePath'];`<p/>`    }</code> |  |
 
diff --git a/docs/development/core/server/kibana-plugin-server.onpostauthhandler.md b/docs/development/core/server/kibana-plugin-server.onpostauthhandler.md
index 3eca8c743169ad..83de25e3f3d6dd 100644
--- a/docs/development/core/server/kibana-plugin-server.onpostauthhandler.md
+++ b/docs/development/core/server/kibana-plugin-server.onpostauthhandler.md
@@ -8,5 +8,5 @@
 <b>Signature:</b>
 
 ```typescript
-export declare type OnPostAuthHandler<Params = any, Query = any, Body = any> = (req: KibanaRequest<Params, Query, Body>, t: OnPostAuthToolkit) => OnPostAuthResult | Promise<OnPostAuthResult>;
+export declare type OnPostAuthHandler<Params = any, Query = any, Body = any> = (request: KibanaRequest<Params, Query, Body>, t: OnPostAuthToolkit) => OnPostAuthResult | Promise<OnPostAuthResult>;
 ```
diff --git a/docs/development/core/server/kibana-plugin-server.onpreauthhandler.md b/docs/development/core/server/kibana-plugin-server.onpreauthhandler.md
index bc8c4da23b423d..606ed21dc6463b 100644
--- a/docs/development/core/server/kibana-plugin-server.onpreauthhandler.md
+++ b/docs/development/core/server/kibana-plugin-server.onpreauthhandler.md
@@ -8,5 +8,5 @@
 <b>Signature:</b>
 
 ```typescript
-export declare type OnPreAuthHandler<Params = any, Query = any, Body = any> = (req: KibanaRequest<Params, Query, Body>, t: OnPreAuthToolkit) => OnPreAuthResult | Promise<OnPreAuthResult>;
+export declare type OnPreAuthHandler<Params = any, Query = any, Body = any> = (request: KibanaRequest<Params, Query, Body>, t: OnPreAuthToolkit) => OnPreAuthResult | Promise<OnPreAuthResult>;
 ```
diff --git a/src/core/server/server.api.md b/src/core/server/server.api.md
index c9678bd9b8e432..f257da20691af8 100644
--- a/src/core/server/server.api.md
+++ b/src/core/server/server.api.md
@@ -25,7 +25,7 @@ export type APICaller = (endpoint: string, clientParams: Record<string, unknown>
 // Warning: (ae-forgotten-export) The symbol "AuthResult" needs to be exported by the entry point index.d.ts
 // 
 // @public (undocumented)
-export type AuthenticationHandler<T> = (request: Request, sessionStorage: SessionStorage<T>, t: AuthToolkit) => AuthResult | Promise<AuthResult>;
+export type AuthenticationHandler<T> = (request: Readonly<Request>, sessionStorage: SessionStorage<T>, t: AuthToolkit) => AuthResult | Promise<AuthResult>;
 
 // @public
 export interface AuthToolkit {
@@ -86,8 +86,7 @@ export interface CoreSetup {
         registerOnPreAuth: HttpServiceSetup['registerOnPreAuth'];
         registerAuth: HttpServiceSetup['registerAuth'];
         registerOnPostAuth: HttpServiceSetup['registerOnPostAuth'];
-        getBasePathFor: HttpServiceSetup['getBasePathFor'];
-        setBasePathFor: HttpServiceSetup['setBasePathFor'];
+        basePath: HttpServiceSetup['basePath'];
     };
 }
 
@@ -253,7 +252,7 @@ export interface LogRecord {
 // Warning: (ae-forgotten-export) The symbol "OnPostAuthResult" needs to be exported by the entry point index.d.ts
 // 
 // @public (undocumented)
-export type OnPostAuthHandler<Params = any, Query = any, Body = any> = (req: KibanaRequest<Params, Query, Body>, t: OnPostAuthToolkit) => OnPostAuthResult | Promise<OnPostAuthResult>;
+export type OnPostAuthHandler<Params = any, Query = any, Body = any> = (request: KibanaRequest<Params, Query, Body>, t: OnPostAuthToolkit) => OnPostAuthResult | Promise<OnPostAuthResult>;
 
 // @public
 export interface OnPostAuthToolkit {
@@ -267,7 +266,7 @@ export interface OnPostAuthToolkit {
 // Warning: (ae-forgotten-export) The symbol "OnPreAuthResult" needs to be exported by the entry point index.d.ts
 // 
 // @public (undocumented)
-export type OnPreAuthHandler<Params = any, Query = any, Body = any> = (req: KibanaRequest<Params, Query, Body>, t: OnPreAuthToolkit) => OnPreAuthResult | Promise<OnPreAuthResult>;
+export type OnPreAuthHandler<Params = any, Query = any, Body = any> = (request: KibanaRequest<Params, Query, Body>, t: OnPreAuthToolkit) => OnPreAuthResult | Promise<OnPreAuthResult>;
 
 // @public
 export interface OnPreAuthToolkit {