Merge pull request #22 from gemini/custom-user-agent

Send custom User-Agent on all MCP server API calls

Author: mars-steven

packages/mcp-server/package.json

@@ -1,6 +1,6 @@
 {
   "name": "gemini-mcp",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "type": "module",
   "main": "dist/index.js",
   "scripts": {

packages/mcp-server/src/client/http.ts

@@ -1,9 +1,15 @@
+import { createRequire } from 'module';
 import JSONBig from 'json-bigint';
 import { config } from '../config.js';
 import { buildSignedHeaders } from '../auth/signer.js';
 
 const REQUEST_TIMEOUT_MS = 30_000;
 
+const { version: PKG_VERSION } = createRequire(import.meta.url)('../../package.json') as {
+  version: string;
+};
+const USER_AGENT = `gemini-mcp/${PKG_VERSION} (node/${process.versions.node})`;
+
 // Precision-preserving JSON parser. The Gemini API emits some numeric fields
 // — most notably prediction-market `orderId` — as JSON numbers in the 17–18
 // digit range, which exceed JavaScript's `Number.MAX_SAFE_INTEGER` (2^53 − 1,
@@ -40,6 +46,7 @@ export class GeminiHttpClient {
       }
     }
     const res = await fetch(url.toString(), {
+      headers: { 'User-Agent': USER_AGENT },
       signal: AbortSignal.timeout(REQUEST_TIMEOUT_MS),
     });
     const text = await res.text();
@@ -51,7 +58,10 @@ export class GeminiHttpClient {
 
   async authenticatedPost<T>(endpoint: string, body: Record<string, unknown> = {}): Promise<T> {
     const fullBody = config.account ? { ...body, account: config.account } : body;
-    const headers = buildSignedHeaders(endpoint, fullBody, this.apiKey, this.apiSecret);
+    const headers = {
+      ...buildSignedHeaders(endpoint, fullBody, this.apiKey, this.apiSecret),
+      'User-Agent': USER_AGENT,
+    };
     const res = await fetch(`${this.baseUrl}${endpoint}`, {
       method: 'POST',
       headers,