My jq killer:

  function ruby_json {
    ruby -e "require 'json'; require 'active_support/all'; puts JSON.parse(STDIN.read)$1"
  }

Performs/prints arbitrary ruby over a readily available representation of the JSON object coming from stdin.

Example:

  curl the_endpoint | ruby_json "['funnels'].map{|a| puts a.to_i * 2 }"