API

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Many of the HTML pages have a callable version: switch the extension to json or txt.

The json version requires either:

• A callback parameter (i.e. it is really "jsonp"). This is the way to use it from a browser.
• An api-key header. This is the way to use it from another server. For now, the value should just be your email address, which I will use to contact you if anything changes or there are other issues.