/api/list.txt                 - global thread index
/api/tags.txt                 - global tag index
/api/friends.txt              - remote board names and urls

  See /api/friends.txt for site-directory index
/api/local/list.txt           - site "local" thread index
/api/local/tags.txt           - site "local" tag index
/api/board/list.txt
/api/board/tags.txt

  See /api/board/list.txt for thread-directory index
/api/local/0/head.txt         - title, tags
/api/local/0/list.txt         - reply list
/api/local/0/local.txt        - local's replies
/api/board/number/head.txt
/api/board/number/list.txt
/api/board/number/board.txt