{"id":81618,"date":"2025-09-01T17:42:12","date_gmt":"2025-09-01T16:42:12","guid":{"rendered":"https:\/\/proxidize.com\/?post_type=blog&p=81618"},"modified":"2025-11-27T13:45:13","modified_gmt":"2025-11-27T13:45:13","slug":"curl-send-headers","status":"publish","type":"blog","link":"https:\/\/proxidize.com\/blog\/curl-send-headers\/","title":{"rendered":"How to Use cURL with Headers"},"content":{"rendered":"\n

When making HTTP requests with cURL, you often need to include custom headers. Headers are important when sending additional information to the server, like authentication tokens, content types, or even user-agent details. Without the correct headers your request might fail or return incomplete data errors such as: error 403<\/a> or 500.<\/p>\n\n\n\n

In this guide, we\u2019ll break down how to send headers with cURL, why they matter, and provide real-world examples you can use right away. We will make sure to cover both how to send a single header and multiple headers.<\/p>\n\n\n\n

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Why Do We Need to Send Headers with cURL?<\/h2>\n\n\n\n

Headers carry important metadata that tells the server how to handle your requests. Without them, some APIs or websites won\u2019t even respond. Here are a few common scenarios where headers are critical and needs to be included:<\/p>\n\n\n\n