Add SearchApi tool

packages/@n8n/nodes-langchain/credentials/SearchApi.credentials.ts

@@ -0,0 +1,42 @@
+import type {
+	IAuthenticateGeneric,
+	ICredentialTestRequest,
+	ICredentialType,
+	INodeProperties,
+} from 'n8n-workflow';
+
+export class SearchApi implements ICredentialType {
+	name = 'searchApi';
+
+	displayName = 'SearchApi';
+
+	documentationUrl = 'searchapi';
+
+	properties: INodeProperties[] = [
+		{
+			displayName: 'API Key',
+			name: 'apiKey',
+			type: 'string',
+			typeOptions: { password: true },
+			required: true,
+			default: '',
+		},
+	];
+
+	authenticate: IAuthenticateGeneric = {
+		type: 'generic',
+		properties: {
+			headers: {
+				Authorization: '=Bearer {{$credentials.apiKey}}',
+				"X-SearchApi-Source": "N8n"
+			},
+		},
+	};
+
+	test: ICredentialTestRequest = {
+		request: {
+			baseURL: 'https://www.searchapi.io',
+			url: '/api/v1/search?engine=google&q=n8n',
+		},
+	};
+}

packages/@n8n/nodes-langchain/nodes/tools/ToolSearchApi/ToolSearchApi.node.ts

@@ -0,0 +1,171 @@
+/* eslint-disable n8n-nodes-base/node-dirname-against-convention */
+import {
+	NodeConnectionType,
+	type IExecuteFunctions,
+	type INodeType,
+	type INodeTypeDescription,
+	type SupplyData,
+} from 'n8n-workflow';
+import { SearchApi } from '@langchain/community/tools/searchapi';
+import { logWrapper } from '../../../utils/logWrapper';
+import { getConnectionHintNoticeField } from '../../../utils/sharedFields';
+
+export class ToolSearchApi implements INodeType {
+	description: INodeTypeDescription = {
+		displayName: 'SearchApi (Google Search)',
+		name: 'toolSearchApi',
+		icon: 'file:searchApi.svg',
+		group: ['transform'],
+		version: 1,
+		description: 'Search in Google using SearchApi',
+		defaults: {
+			name: 'SearchApi',
+		},
+		codex: {
+			categories: ['AI'],
+			subcategories: {
+				AI: ['Tools'],
+				Tools: ['Other Tools'],
+			},
+			resources: {
+				primaryDocumentation: [
+					{
+            url: 'https://docs.n8n.io/integrations/builtin/cluster-nodes/sub-nodes/n8n-nodes-langchain.toolsearchapi/',
+					},
+				],
+			},
+		},
+		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
+		inputs: [],
+		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
+		outputs: [NodeConnectionType.AiTool],
+		outputNames: ['Tool'],
+		credentials: [
+			{
+				name: 'searchApi',
+				required: true,
+			},
+		],
+		properties: [
+			getConnectionHintNoticeField([NodeConnectionType.AiAgent]),
+			{
+				displayName: 'Options',
+				name: 'options',
+				type: 'collection',
+				placeholder: 'Add Option',
+				default: {},
+				options: [
+					{
+						displayName: 'Engine',
+						name: 'engine',
+						type: 'string',
+						default: 'google',
+						description:
+							'Defines the engine of the search. Supported engines are google, bing, baidu, google_news, youtube_transcripts, and more. Check the full list of supported <a href="https://www.searchapi.io/" engines</a> in the documentation.',
+					},
+					{
+						displayName: 'Country',
+						name: 'gl',
+						type: 'string',
+						default: 'us',
+						description:
+							'Defines the country of the search. Check the full list of supported <a href="https://www.searchapi.io/docs/parameters/google/gl" Google countries</a>.',
+						displayOptions: {
+							hide: {
+								engine: ['youtube_transcripts'],
+							},
+						},
+					},
+					{
+						displayName: 'Device',
+						name: 'device',
+						type: 'options',
+						options: [
+							{
+								name: 'Desktop',
+								value: 'desktop',
+							},
+							{
+								name: 'Mobile',
+								value: 'mobile',
+							},
+							{
+								name: 'Tablet',
+								value: 'tablet',
+							},
+						],
+						default: 'desktop',
+						description: 'Device to use to get the results',
+						displayOptions: {
+							hide: {
+								engine: ['youtube_transcripts'],
+							},
+						},
+					},
+					{
+						displayName: 'Google Domain',
+						name: 'google_domain',
+						type: 'string',
+						default: 'google.com',
+						description:
+							'Defines the Google domain of the search. Check the full list of supported <a href="https://www.searchapi.io/docs/parameters/google/domain" Google domains</a>.',
+						displayOptions: {
+							hide: {
+								engine: ['youtube_transcripts'],
+							},
+						},
+					},
+					{
+						displayName: 'Language',
+						name: 'hl',
+						type: 'string',
+						default: 'en',
+						description:
+							'Defines the interface language of the search. Check the full list of supported <a href="https://www.searchapi.io/docs/parameters/google/hl" Google languages</a>.',
+						displayOptions: {
+							hide: {
+								engine: ['youtube_transcripts'],
+							},
+						},
+					},
+					{
+						displayName: 'Video ID (For YouTube Transcripts)',
+						name: 'video_id',
+						type: 'string',
+						default: '',
+						description:
+							'Specifies the ID of the video for which you want to retrieve transcripts. Only applicable for YouTube Transcripts engine.',
+						displayOptions: {
+							show: {
+								engine: ['youtube_transcripts'],
+							},
+						},
+					},
+					{
+						displayName: 'Language (For YouTube Transcripts)',
+						name: 'lang',
+						type: 'string',
+						default: 'en',
+						description:
+							'Specifies the language for transcripts. Only applicable for YouTube Transcripts engine.',
+						displayOptions: {
+							show: {
+								engine: ['youtube_transcripts'],
+							},
+						},
+					},
+				],
+			},
+		],
+	};
+
+	async supplyData(this: IExecuteFunctions, itemIndex: number): Promise<SupplyData> {
+		const credentials = await this.getCredentials('searchApi');
+
+		const options = this.getNodeParameter('options', itemIndex) as object;
+
+		return {
+			response: logWrapper(new SearchApi(credentials.apiKey as string, options), this),
+		};
+	}
+}

packages/@n8n/nodes-langchain/package.json

@@ -33,6 +33,7 @@
       "dist/credentials/OllamaApi.credentials.js",
       "dist/credentials/PineconeApi.credentials.js",
       "dist/credentials/QdrantApi.credentials.js",
+      "dist/credentials/SearchApi.credentials.js",
       "dist/credentials/SerpApi.credentials.js",
       "dist/credentials/WolframAlphaApi.credentials.js",
       "dist/credentials/XataApi.credentials.js",
@@ -98,6 +99,7 @@
       "dist/nodes/tools/ToolCalculator/ToolCalculator.node.js",
       "dist/nodes/tools/ToolCode/ToolCode.node.js",
       "dist/nodes/tools/ToolHttpRequest/ToolHttpRequest.node.js",
+      "dist/nodes/tools/ToolSearchApi/ToolSearchApi.node.js",
       "dist/nodes/tools/ToolSerpApi/ToolSerpApi.node.js",
       "dist/nodes/tools/ToolVectorStore/ToolVectorStore.node.js",
       "dist/nodes/tools/ToolWikipedia/ToolWikipedia.node.js",