HTTP/1.1 included a 402 Payment Required status code but left it reserved for future use rather than defining a payment mechanism.

Format Online paper / PDF

Location PART 2 - FOUR HIDDEN CHIMNEYS CHAPTER 8: THE SHIELD OF SCREWTAPE Grounded Tribalism

"HTTP/1.1 included a 402 Payment Required status code but left it reserved for future use rather than defining a payment mechanism."

The original HTTP/1.1 specification assigned status 402 to Payment Required while explicitly reserving the code for future use, leaving the actual payment system undefined.

View Source

Source title RFC 2068: Hypertext Transfer Protocol -- HTTP/1.1

Source authors R. Fielding; J. Gettys; J. Mogul; H. Frystyk; T. Berners-Lee

Source year 1997

Confidence high

Importance high