HTTP Header Builder

HTTP headers are key-value pairs sent with every HTTP request and response. They carry essential metadata like authentication credentials, content types, and caching instructions. This free HTTP header builder helps you configure headers for n8n HTTP Request nodes.

The Problem: API Authentication and Configuration

Most APIs require specific headers for authentication, content negotiation, and proper request handling. Misconfigured headers are a leading cause of API integration failures in workflow automation.

• APIs reject requests without proper Authorization headers
• Wrong Content-Type causes parsing errors
• Missing headers lead to unexpected behavior
• Debugging header issues is time-consuming

The Solution: Visual Header Builder with Presets

This free header builder provides common presets for authentication, content types, CORS, and more. Build headers visually and export them as JSON for direct use in n8n.

Common HTTP Headers for n8n Workflows

• Authorization - Bearer tokens, Basic auth, API keys
• Content-Type - JSON, form data, multipart
• Accept - Specify expected response format
• User-Agent - Identify your workflow to APIs
• X-Request-ID - Track requests for debugging

Why Choose This HTTP Header Builder?

• Free Forever - No sign-up or usage limits
• n8n-Focused - Presets for common workflow scenarios
• Expression Support - Use n8n expressions in values
• Multiple Formats - Export as JSON or cURL
• Quick Presets - Auth, content types, CORS headers