Simon Willison’s Weblog

OAuth: Your valet key for the Web. OAuth is a really important new specification that aims to solve the “give this application permission to do X on my behalf” problem once and for all.

Posted 21st September 2007 at 11:34 pm

Recent articles

ChatGPT agent's user-agent - 4th August 2025
The ChatGPT sharing dialog demonstrates how difficult it is to design privacy preferences - 3rd August 2025
Reverse engineering some updates to Claude - 31st July 2025

apis 94 authentication 13 oauth 53 openid 213 specification 3 web-services 26

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