diff --git a/src/tools/correspondents.ts b/src/tools/correspondents.ts
index 87504f0..4b3e572 100644
--- a/src/tools/correspondents.ts
+++ b/src/tools/correspondents.ts
@@ -1,5 +1,6 @@
 import { McpServer } from "@modelcontextprotocol/sdk/server/mcp";
 import { z } from "zod";
+import { toTextResult } from "./result";
 
 export function registerCorrespondentTools(server: McpServer, api) {
   server.tool(
@@ -7,7 +8,7 @@ export function registerCorrespondentTools(server: McpServer, api) {
     "Retrieve all available correspondents (people, companies, organizations that send/receive documents). Returns names and automatic matching patterns for document assignment.",
     { }, async (args, extra) => {
     if (!api) throw new Error("Please configure API connection first");
-    return api.getCorrespondents();
+    return toTextResult(await api.getCorrespondents());
   });
 
   server.tool(
@@ -22,7 +23,7 @@ export function registerCorrespondentTools(server: McpServer, api) {
     },
     async (args, extra) => {
       if (!api) throw new Error("Please configure API connection first");
-      return api.createCorrespondent(args);
+      return toTextResult(await api.createCorrespondent(args));
     }
   );
 
@@ -49,17 +50,19 @@ export function registerCorrespondentTools(server: McpServer, api) {
     },
     async (args, extra) => {
       if (!api) throw new Error("Please configure API connection first");
-      return api.bulkEditObjects(
-        args.correspondent_ids,
-        "correspondents",
-        args.operation,
-        args.operation === "set_permissions"
-          ? {
-              owner: args.owner,
-              permissions: args.permissions,
-              merge: args.merge,
-            }
-          : {}
+      return toTextResult(
+        await api.bulkEditObjects(
+          args.correspondent_ids,
+          "correspondents",
+          args.operation,
+          args.operation === "set_permissions"
+            ? {
+                owner: args.owner,
+                permissions: args.permissions,
+                merge: args.merge,
+              }
+            : {}
+        )
       );
     }
   );
diff --git a/src/tools/documentTypes.ts b/src/tools/documentTypes.ts
index e7b4536..036564b 100644
--- a/src/tools/documentTypes.ts
+++ b/src/tools/documentTypes.ts
@@ -1,4 +1,5 @@
 import { z } from "zod";
+import { toTextResult } from "./result";
 
 export function registerDocumentTypeTools(server, api) {
   server.tool(
@@ -8,7 +9,7 @@ export function registerDocumentTypeTools(server, api) {
     // No parameters - returns all available document types
   }, async (args, extra) => {
     if (!api) throw new Error("Please configure API connection first");
-    return api.getDocumentTypes();
+    return toTextResult(await api.getDocumentTypes());
   });
 
   server.tool(
@@ -23,7 +24,7 @@ export function registerDocumentTypeTools(server, api) {
     },
     async (args, extra) => {
       if (!api) throw new Error("Please configure API connection first");
-      return api.createDocumentType(args);
+      return toTextResult(await api.createDocumentType(args));
     }
   );
 
@@ -50,17 +51,19 @@ export function registerDocumentTypeTools(server, api) {
     },
     async (args, extra) => {
       if (!api) throw new Error("Please configure API connection first");
-      return api.bulkEditObjects(
-        args.document_type_ids,
-        "document_types",
-        args.operation,
-        args.operation === "set_permissions"
-          ? {
-              owner: args.owner,
-              permissions: args.permissions,
-              merge: args.merge,
-            }
-          : {}
+      return toTextResult(
+        await api.bulkEditObjects(
+          args.document_type_ids,
+          "document_types",
+          args.operation,
+          args.operation === "set_permissions"
+            ? {
+                owner: args.owner,
+                permissions: args.permissions,
+                merge: args.merge,
+              }
+            : {}
+        )
       );
     }
   );
diff --git a/src/tools/documents.ts b/src/tools/documents.ts
index 87a94a7..6abfe83 100644
--- a/src/tools/documents.ts
+++ b/src/tools/documents.ts
@@ -1,4 +1,5 @@
 import { z } from "zod";
+import { toTextResult } from "./result";
 
 export function registerDocumentTools(server, api) {
   server.tool(
@@ -53,7 +54,7 @@ export function registerDocumentTools(server, api) {
     async (args, extra) => {
       if (!api) throw new Error("Please configure API connection first");
       const { documents, method, ...parameters } = args;
-      return api.bulkEditDocuments(documents, method, parameters);
+      return toTextResult(await api.bulkEditDocuments(documents, method, parameters));
     }
   );
 
@@ -78,7 +79,7 @@ export function registerDocumentTools(server, api) {
       const blob = new Blob([binaryData]);
       const file = new File([blob], args.filename);
       const { file: _, filename: __, ...metadata } = args;
-      return api.postDocument(file, metadata);
+      return toTextResult(await api.postDocument(file, metadata));
     }
   );
 
@@ -91,7 +92,7 @@ export function registerDocumentTools(server, api) {
     },
     async (args, extra) => {
       if (!api) throw new Error("Please configure API connection first");
-      return api.getDocument(args.id);
+      return toTextResult(await api.getDocument(args.id));
     }
   );
 
@@ -114,7 +115,7 @@ export function registerDocumentTools(server, api) {
       if (Object.keys(data).length === 0) {
         throw new Error("At least one field must be provided to update.");
       }
-      return api.updateDocument(id, data);
+      return toTextResult(await api.updateDocument(id, data));
     }
   );
 
@@ -128,7 +129,7 @@ export function registerDocumentTools(server, api) {
     },
     async (args, extra) => {
       if (!api) throw new Error("Please configure API connection first");
-      return api.searchDocuments(args.query, args.page, args.page_size);
+      return toTextResult(await api.searchDocuments(args.query, args.page, args.page_size));
     }
   );
 
@@ -142,14 +143,14 @@ export function registerDocumentTools(server, api) {
     async (args, extra) => {
       if (!api) throw new Error("Please configure API connection first");
       const response = await api.downloadDocument(args.id, args.original);
-      return {
+      return toTextResult({
         blob: Buffer.from(await response.arrayBuffer()).toString("base64"),
         filename:
           response.headers
             .get("content-disposition")
             ?.split("filename=")[1]
             ?.replace(/"/g, "") || `document-${args.id}`,
-      };
+      });
     }
   );
 }
diff --git a/src/tools/result.ts b/src/tools/result.ts
new file mode 100644
index 0000000..be64f8d
--- /dev/null
+++ b/src/tools/result.ts
@@ -0,0 +1,7 @@
+export function toTextResult(data: unknown) {
+  return {
+    content: [
+      { type: "text" as const, text: JSON.stringify(data, null, 2) },
+    ],
+  };
+}
diff --git a/src/tools/tags.ts b/src/tools/tags.ts
index 5447764..8a0e4ca 100644
--- a/src/tools/tags.ts
+++ b/src/tools/tags.ts
@@ -1,4 +1,5 @@
 import { z } from "zod";
+import { toTextResult } from "./result";
 
 export function registerTagTools(server, api) {
   server.tool(
@@ -8,7 +9,7 @@ export function registerTagTools(server, api) {
     // No parameters - returns all available tags
   }, async (args, extra) => {
     if (!api) throw new Error("Please configure API connection first");
-    return api.getTags();
+    return toTextResult(await api.getTags());
   });
 
   server.tool(
@@ -25,7 +26,7 @@ export function registerTagTools(server, api) {
     },
     async (args, extra) => {
       if (!api) throw new Error("Please configure API connection first");
-      return api.createTag(args);
+      return toTextResult(await api.createTag(args));
     }
   );
 
@@ -44,7 +45,7 @@ export function registerTagTools(server, api) {
     },
     async (args, extra) => {
       if (!api) throw new Error("Please configure API connection first");
-      return api.updateTag(args.id, args);
+      return toTextResult(await api.updateTag(args.id, args));
     }
   );
 
@@ -56,7 +57,7 @@ export function registerTagTools(server, api) {
     },
     async (args, extra) => {
       if (!api) throw new Error("Please configure API connection first");
-      return api.deleteTag(args.id);
+      return toTextResult(await api.deleteTag(args.id));
     }
   );
 
@@ -83,17 +84,19 @@ export function registerTagTools(server, api) {
     },
     async (args, extra) => {
       if (!api) throw new Error("Please configure API connection first");
-      return api.bulkEditObjects(
-        args.tag_ids,
-        "tags",
-        args.operation,
-        args.operation === "set_permissions"
-          ? {
-              owner: args.owner,
-              permissions: args.permissions,
-              merge: args.merge,
-            }
-          : {}
+      return toTextResult(
+        await api.bulkEditObjects(
+          args.tag_ids,
+          "tags",
+          args.operation,
+          args.operation === "set_permissions"
+            ? {
+                owner: args.owner,
+                permissions: args.permissions,
+                merge: args.merge,
+              }
+            : {}
+        )
       );
     }
   );