{"id":17159,"date":"2025-09-16T13:38:03","date_gmt":"2025-09-16T12:38:03","guid":{"rendered":"https:\/\/www.milesweb.co.uk\/hosting-faqs\/?p=17159"},"modified":"2025-09-16T13:38:04","modified_gmt":"2025-09-16T12:38:04","slug":"how-to-connect-api-to-n8n","status":"publish","type":"post","link":"https:\/\/www.milesweb.co.uk\/hosting-faqs\/how-to-connect-api-to-n8n\/","title":{"rendered":"How to Connect API to n8n?"},"content":{"rendered":"\n<p>If you want to connect an API to n8n or n8n VPS, it typically involves using the HTTP Request node within a workflow. The node allows interaction with external APIs by sending requests and receiving responses. Here&#8217;s a general guide on how to connect an API to n8n:<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 1: Set Up n8n<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You can run on the local machine through npm, Docker, or user n8n.cloud (hosted version).&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>For npm:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm install n8n -g\n\nn8n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Open http:\/\/localhost:5678 in your browser.<\/li>\n\n\n\n<li>Create a new workflow. Click on \u201cNew Workflow\u201d in the n8n dashboard.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Step 2: Choose a Trigger Node<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Add a Trigger (e.g., Webhook Trigger) to trigger the workflow.<\/li>\n\n\n\n<li>Sample: Webhook: Use Webhook when you wish to make a call to the workflow through an external API.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Step 3: Add an HTTP Request Node<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>This is the most important step in order to have connections to any API.<\/li>\n\n\n\n<li>Click \u201c+\u201d button, then choose \u201cHTTP Request node.\u201d<\/li>\n<\/ul>\n\n\n\n<p><strong>Set the API connection:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Operation: GET, POST, PUT, DELETE (based on API).<\/li>\n\n\n\n<li>URL: Type in the API endpoint (e.g. https:api.example.com\/data).<\/li>\n\n\n\n<li>Headers: Add Headers (e.g., Authorization: Bearer &lt;API_KEY)).<\/li>\n\n\n\n<li>Query Parameters: Append parameters (e.g.,?limit=10&amp;page=1).<\/li>\n\n\n\n<li>Body Parameters (POST\/PUT): Add the JSON data or form-data according to the API documentation.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Step 4: Test the Connection<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Click \u201cExecute Node\u201d, which will execute the API call.<\/li>\n\n\n\n<li>With a success, the rendering of the JSON response of the API will appear in the output panel.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Step 5: Process the Data<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Increase API data processing nodes:<\/li>\n\n\n\n<li>Set Node &#8211; Retrieve or change fields.<\/li>\n\n\n\n<li>Function Node &#8211; Custom JavaScript.<\/li>\n\n\n\n<li>Database\/Spreadsheet Node Save API data in your storage.<\/li>\n\n\n\n<li>Other API Node -Send the result to a new API.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Step 6: Save and Activate Workflow<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Click \u201cSave\u201d to save your workflow.<\/li>\n\n\n\n<li>Toggle \u201cActivate Workflow\u201d to be automatically activated.<\/li>\n<\/ul>\n\n\n\n<p>Example: An interface to OpenWeather API.<\/p>\n\n\n\n<p>Add Webhook Trigger \u2192 to begin on hitting the URL.<\/p>\n\n\n\n<p>Add HTTP Request Node with:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Method: GET<\/li>\n\n\n\n<li>URL: https:\/\/api.openweathermap.org\/data\/2.5\/weather<\/li>\n\n\n\n<li>Query Parameters:<\/li>\n\n\n\n<li>q=London<\/li>\n\n\n\n<li>appid=&lt;YOUR_API_KEY&gt;<\/li>\n<\/ul>\n\n\n\n<p>Open the node to retrieve weather information.<\/p>\n\n\n\n<p>Action or response to Slack, email or database.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you want to connect an API to n8n or n8n VPS, it typically involves using the HTTP Request node within a workflow. The node allows interaction with external APIs by sending requests and receiving responses. Here&#8217;s a general guide on how to connect an API to n8n: Step 1: Set Up n8n For npm: [&hellip;]<\/p>\n","protected":false},"author":35,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-17159","post","type-post","status-publish","format-standard","placeholder-for-hentry","category-vps-faq"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Connect API to n8n?<\/title>\n<meta name=\"description\" content=\"Connecting an API to n8n is a core function of the platform, enabling you to build powerful automations. 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