diff --git a/types/algoliasearch/index.d.ts b/types/algoliasearch/index.d.ts
index 0a642fb9d04ce79..1081fda7c931c0e 100644
--- a/types/algoliasearch/index.d.ts
+++ b/types/algoliasearch/index.d.ts
@@ -211,6 +211,10 @@ declare namespace algoliasearch {
      * Get 1000 last events
      */
     getLogs(options: LogsOptions): Promise<{ logs: Log[] }>;
+    /**
+     * add a header, used for flagging InstantSearch implementations
+     */
+    addAlgoliaAgent(agent: string): void;
   }
   /**
    * Interface for the index algolia object
diff --git a/types/algoliasearch/lite/index.d.ts b/types/algoliasearch/lite/index.d.ts
index e877fc6e49c2e47..53692b7b37ac1cf 100644
--- a/types/algoliasearch/lite/index.d.ts
+++ b/types/algoliasearch/lite/index.d.ts
@@ -76,6 +76,10 @@ declare namespace algoliasearch {
      * remove an extra header for all upcoming requests
      */
     unsetExtraHeader(name: string): void;
+    /**
+     * add a header, used for flagging InstantSearch implementations
+     */
+    addAlgoliaAgent(agent: string): void;
   }
 
   /**