.env.template

 OPENAI_API_KEY=""
 SEARCHAPI_API_KEY=""
 GOOGLE_CSE_ID=""
-GOOGLE_API_KEY=""
\ No newline at end of file
+GOOGLE_API_KEY=""
+BING_API_KEY=""
\ No newline at end of file

README.md

@@ -96,9 +96,19 @@ poetry install
 
 ```python
 OPENAI_API_KEY="" # for OpenAI LLM backend
-SEARCHAPI_API_KEY="" # for Web Search
+BING_API_KEY="" # for Bing Web Search
+GOOGLE_API_KEY="" # for Google Web Search
+SEARCHAPI_API_KEY="" # for SearchAPI  Web Search
 ```
 
+**Selecting the Search Engine**
+
+The system will automatically select the appropriate search engine based on the following priority:
+ 
+  - [Bing API](https://www.microsoft.com/en-us/bing/apis/bing-web-search-api): If `BING_API_KEY` is provided
+  - [Search API](https://www.searchapi.io/): If `SEARCHAPI_API_KEY` is provided
+  - [Google API](https://developers.google.com/custom-search/?csw=1): If `GOOGLE_API_KEY` is provided
+
 **Getting started with GPTSwarm is easy. Quickly run a predefined swarm**
 
 ```python

pyproject.toml

@@ -62,8 +62,9 @@ tqdm = "^4.66.1"
 transformers = "^4.36.2"
 wikipedia = "^1.4.0"
 astunparse = "^1.6.3"
-torch = "^2.1.0"
+torch = ">=2.1.0, <=2.2.2"
 async-timeout = "^4.0.3"
+numpy = "^1.25.2"
 
 [tool.poetry.group.dev.dependencies]
 pytest = "^8.0.2"

swarm/environment/__init__.py

 from swarm.environment.tools.reader.readers import GeneralReader
-from swarm.environment.tools.search.search import GoogleSearchEngine, SearchAPIEngine
+from swarm.environment.tools.search.search import GoogleSearchEngine, SearchAPIEngine, BingSearchEngine
 
 
 __all__ = [
     "GeneralReader",
     "GoogleSearchEngine",
-    "SearchAPIEngine"
+    "SearchAPIEngine",
+    "BingSearchEngine"
 ]
\ No newline at end of file

swarm/environment/operations/web_search.py

 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
+import os
 from copy import deepcopy
 from collections import defaultdict
+from dotenv import load_dotenv
 from typing import List, Any, Optional
 
 from swarm.llm.format import Message
 from swarm.graph import Node
-from swarm.environment import GoogleSearchEngine, SearchAPIEngine
+from swarm.environment import GoogleSearchEngine, SearchAPIEngine, BingSearchEngine
 from swarm.utils.log import logger, swarmlog
 from swarm.utils.globals import Cost
 from swarm.environment.prompt.prompt_set_registry import PromptSetRegistry
 from swarm.llm import LLMRegistry
 
-#searcher = GoogleSearchEngine()
-searcher = SearchAPIEngine()
-
-
 class WebSearch(Node):
     def __init__(self, 
                  domain: str,
@@ -29,10 +27,20 @@ class WebSearch(Node):
         self.prompt_set = PromptSetRegistry.get(domain)
         self.role = self.prompt_set.get_role()
         self.constraint = self.prompt_set.get_constraint()
+        self.searcher =self._get_searcher()
 
     @property
     def node_name(self):
         return self.__class__.__name__
+    
+    def _get_searcher(self):
+        load_dotenv()
+        if os.getenv("BING_API_KEY"):
+            return BingSearchEngine()
+        if os.getenv("SEARCHAPI_API_KEY"):
+            return SearchAPIEngine()
+        if os.getenv("GOOGLE_API_KEY"):
+            return GoogleSearchEngine()
 
     async def _execute(self, inputs: List[Any] = [], max_keywords: int = 5, **kwargs):
 
@@ -78,6 +86,6 @@ class WebSearch(Node):
         return outputs
 
     def web_search(self, query):
-        return searcher.search(query)
+        return self.searcher.search(query)
     
 

swarm/environment/tools/search/search.py

@@ -2,16 +2,27 @@
 # -*- coding: utf-8 -*-
 
 import os
-from dotenv import load_dotenv
 from googleapiclient.discovery import build
 import requests
 import ast
-load_dotenv()
 
+class BingSearchEngine():
+    def __init__(self) -> None:
+        self.api_key = os.getenv("BING_API_KEY")
+        self.endpoint = "https://api.bing.microsoft.com/v7.0/search"
+        self.headers = {"Ocp-Apim-Subscription-Key": self.api_key}
+    
+    def search(self, query: str, num: int = 3):
+        try:
+            params = {"q": query, "count": num}
+            res = requests.get(self.endpoint, headers=self.headers, params=params)
+            res = res.json()
+            return '\n'.join([item['snippet'] for item in res['webPages']['value']])
+        except:
+            return 'Cannot get search results from Bing API'
 
 class GoogleSearchEngine():
     def __init__(self) -> None:
-        load_dotenv()
         self.api_key = os.getenv("GOOGLE_API_KEY")
         self.cse_id = os.getenv("GOOGLE_CSE_ID")
         self.service = build("customsearch", "v1", developerKey=self.api_key)
@@ -21,8 +32,7 @@ class GoogleSearchEngine():
             res = self.service.cse().list(q=query, cx=self.cse_id, num=num).execute()
             return '\n'.join([item['snippet'] for item in res['items']])
         except:
-            return ''
-
+            return 'Cannot get search results from Google API'
 
 class SearchAPIEngine():
 
@@ -45,7 +55,7 @@ class SearchAPIEngine():
             if 'organic_results' in response.keys() and len(response['organic_results']) > 0:
                 
                 return '\n'.join([res['snippet'] for res in response['organic_results'][:item_num]])
-            return ''
+            return 'Cannot get search results from SearchAPI'