What Is HTTP 418 I am a teapot?

HTTP 418 I am a teapot explained, and what it means when you see it in CI/CD and deployments.

HTTP 418 is a humorous status code from the "Hyper Text Coffee Pot Control Protocol" RFC.

What it means

A 418 was never meant for real HTTP, but some APIs and frameworks return it as an easter egg or to reject bots playfully.

When you see it in CI/CD

You will almost never see 418 in CI. If you do, an API is using it deliberately, often to signal an unsupported or blocked request.

Key takeaways

• 418 is a joke status code.
• From an April Fools RFC.
• Occasionally used as an easter egg.

Related guides