Headers and Authentication

Headers are metadata about your request. The most important ones:

Content-Type — tells the server what format your request body is in. If you're sending JSON, you set Content-Type: application/json.

Accept — tells the server what format you want the response in. Most APIs default to JSON, so you can usually leave this alone. But you can explicitly request JSON with Accept: application/json.

Authorization — how you prove you're allowed to use the API. This depends on the authentication method (API keys, Bearer tokens, etc.). We'll cover this in depth in the next lesson. For now, know that authentication goes in headers or sometimes as query parameters.

In Make and n8n, there are usually toggles and fields to set these, rather than typing them manually.