Ask HN: Declarative HTTP API test DSL/tool?

I remember a http/api testing tool that was posted some weeks/months back here on HN. It used a DSL that looked like:

GET http://api.example.com

EXPECT status_code 200 EXPECT result match xyz

or something like that - that was the idea. I don't remember the exact verbs used.

I have tried search and looked thru hundreds of results without finding it.

Please help? Any other tool that is similar (declarative description of http calls and expected results) would also help.

Thank you.