Headers

Adding Headers

Open the Headers tab in the request builder. Click + Add to add a new row.

Each row has:

• ✓ checkbox — enable/disable the header
• Key — header name (e.g., Content-Type)
• Value — header value (supports {{variables}})
• Delete — remove the row

Common Headers

Header	Example Value	Purpose
Content-Type	application/json	Body format for POST/PUT/PATCH
Authorization	Bearer {{token}}	Auth (use the Auth tab instead)
Accept	application/json	Requested response format
X-API-Key	{{apiKey}}	API key authentication
X-Request-ID	{{$randomUUID}}	Request tracing

Auto-generated Headers

Some headers are added automatically by Rostyman:

• Content-Type — set automatically based on the body mode selected
• Content-Length — calculated from the body

Disabling Headers

Uncheck a header's checkbox to disable it without removing it. Useful for testing with and without a specific header.

Variables in Headers

Both key and value fields support {{variable}} syntax:

Key:   Authorization
Value: Bearer {{accessToken}}