Ask HN: How can I add my own search engine to my browser?

[vrypan]

Let's say I created my own search engine. How do I add it to Chrome, Firefox and Safari? Is there an API it should expose? Some special markup in the HTML results? Anything else I should know?

[mindcrime]

See:

https://en.wikipedia.org/wiki/OpenSearch

and

https://mycroftproject.com/

[vrypan]

Thanks!