AI engineering glossary · Web APIs HTTP
What is HTTP header?
HTTP header (also called Headers): A name-value line attached to a request or response that carries metadata, such as the format of the body, credentials, caching rules or the client's identity. Headers keep this information separate from the actual data.
HTTP header: an example
Authorization: Bearer abc123 tells the server who is calling, while Content-Type: application/json describes the body.
Related terms
More Web APIs HTTP terms
Where you learn it
HTTP header is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.