Merge pull request #54 from perplexityai/kesku/deep-research-timeout

Fix timeout issues for sonar-deep-research

Author: kesku

README.md

@@ -29,6 +29,7 @@ Advanced reasoning and problem-solving using the `sonar-reasoning-pro` model. Pe
 ### Get Your API Key
 1. Get your Perplexity API Key from the [API Portal](https://www.perplexity.ai/account/api/group)
 2. Set it as an environment variable: `PERPLEXITY_API_KEY=your_key_here`
+3. (Optional) Set a timeout for requests: `PERPLEXITY_TIMEOUT_MS=600000`. The default is 5 minutes.
 
 ### Claude Code
 
@@ -51,6 +52,7 @@ Or add to your `claude.json`:
     ],
     "env": {
       "PERPLEXITY_API_KEY": "your_key_here",
+      "PERPLEXITY_TIMEOUT_MS": "600000"
     }
   }
 }
@@ -68,6 +70,7 @@ Add to your `mcp.json`:
       "args": ["-y", "@perplexity-ai/mcp-server"],
       "env": {
         "PERPLEXITY_API_KEY": "your_key_here",
+        "PERPLEXITY_TIMEOUT_MS": "600000"
       }
     }
   }
@@ -86,6 +89,7 @@ Add to your `claude_desktop_config.json`:
       "args": ["-y", "@perplexity-ai/mcp-server"],
       "env": {
         "PERPLEXITY_API_KEY": "your_key_here",
+        "PERPLEXITY_TIMEOUT_MS": "600000"
       }
     }
   }
@@ -105,6 +109,7 @@ npx @perplexity-ai/mcp-server
 - **API Key Issues**: Ensure `PERPLEXITY_API_KEY` is set correctly
 - **Connection Errors**: Check your internet connection and API key validity
 - **Tool Not Found**: Make sure the package is installed and the command path is correct
+- **Timeout Errors**: For very long research queries, set `PERPLEXITY_TIMEOUT_MS` to a higher value
 
 For support, visit [community.perplexity.ai](https://community.perplexity.ai) or [file an issue](https://github.com/perplexityai/modelcontextprotocol/issues).
 

index.ts

@@ -161,6 +161,10 @@ if (!PERPLEXITY_API_KEY) {
   process.exit(1);
 }
 
+// Configure timeout for API requests (default: 5 minutes)
+// Can be overridden via PERPLEXITY_TIMEOUT_MS environment variable
+const TIMEOUT_MS = parseInt(process.env.PERPLEXITY_TIMEOUT_MS || "300000", 10);
+
 /**
  * Performs a chat completion by sending a request to the Perplexity API.
  * Appends citations to the returned message content if they exist.
@@ -184,6 +188,9 @@ async function performChatCompletion(
     // https://docs.perplexity.ai/api-reference/chat-completions
   };
 
+  const controller = new AbortController();
+  const timeoutId = setTimeout(() => controller.abort(), TIMEOUT_MS);
+
   let response;
   try {
     response = await fetch(url.toString(), {
@@ -193,8 +200,14 @@ async function performChatCompletion(
         "Authorization": `Bearer ${PERPLEXITY_API_KEY}`,
       },
       body: JSON.stringify(body),
+      signal: controller.signal,
     });
+    clearTimeout(timeoutId);
   } catch (error) {
+    clearTimeout(timeoutId);
+    if (error instanceof Error && error.name === "AbortError") {
+      throw new Error(`Request timeout: Perplexity API did not respond within ${TIMEOUT_MS}ms. Consider increasing PERPLEXITY_TIMEOUT_MS.`);
+    }
     throw new Error(`Network error while calling Perplexity API: ${error}`);
   }
 
@@ -288,6 +301,9 @@ async function performSearch(
     body.country = country;
   }
 
+  const controller = new AbortController();
+  const timeoutId = setTimeout(() => controller.abort(), TIMEOUT_MS);
+
   let response;
   try {
     response = await fetch(url.toString(), {
@@ -297,8 +313,14 @@ async function performSearch(
         "Authorization": `Bearer ${PERPLEXITY_API_KEY}`,
       },
       body: JSON.stringify(body),
+      signal: controller.signal,
     });
+    clearTimeout(timeoutId);
   } catch (error) {
+    clearTimeout(timeoutId);
+    if (error instanceof Error && error.name === "AbortError") {
+      throw new Error(`Request timeout: Perplexity Search API did not respond within ${TIMEOUT_MS}ms. Consider increasing PERPLEXITY_TIMEOUT_MS.`);
+    }
     throw new Error(`Network error while calling Perplexity Search API: ${error}`);
   }
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@perplexity-ai/mcp-server",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "description": "Official MCP server for Perplexity API Platform",
   "keywords": [
     "ai",