Safe Characters
The following is a list of the permitted safe characters for use with the API.
Safe characters are considered to be 0 through - 9, letters, underscore _, and dash - in the URI.
Reserved characters
ampersand "&"dollar "$"plus sign "+"comma ","forward slash "/"colon ":"semi-colon ";"equals "="question mark "?"@ symbol "@"pound/hash "#"
Unsafe characters
space " "less than and greater than "<>"open and close brackets "[]"open and close braces "{}"pipe "|"backslash "\"caret "^"percent "%"tilde "~"