# What is OAuth?

DevFeed: [What is OAuth?](<https://devfeed.tech/articles/what-is-oauth-19727.md>)

Original publisher: [Read original article](<https://engineering.clever.com/2023/05/23/what-is-oauth/>)

Author: Keith Richards

Published: 2023-05-23T17:54:15Z

Content type: tutorial

Language: en

Sources: [Clever](<https://devfeed.tech/sources/clever.md>)

Topics: [OAuth](<https://devfeed.tech/topics/oauth.md>), [OAuth 2.0](<https://devfeed.tech/topics/oauth2.md>), [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>), [Authorization](<https://devfeed.tech/topics/authorization.md>)

Tags: [auth](<https://devfeed.tech/tags/auth.md>), [authentication](<https://devfeed.tech/tags/authentication.md>), [authorization](<https://devfeed.tech/tags/authorization.md>), [cryptography](<https://devfeed.tech/tags/cryptography.md>), [oauth](<https://devfeed.tech/tags/oauth.md>), [oauth2](<https://devfeed.tech/tags/oauth2.md>), [protocol](<https://devfeed.tech/tags/protocol.md>), [third-party-applications](<https://devfeed.tech/tags/third-party-applications.md>), [web-applications](<https://devfeed.tech/tags/web-applications.md>)

## AI overview

This primer explains OAuth as a protocol for delegated access, allowing users to grant third-party websites or applications access to information on other websites without sharing login credentials. It traces the development from OAuth 1.0a to OAuth 2.0, including OAuth 2.0's support for native applications, removal of cryptographic signature requirements, and clearer authorization roles.

## Source excerpt

A primer on delegated access OAuth, short for "open authorization", is a widely used protocol that allows users to grant third-party websites or applications access to their personal information on other websites. It provides a mechanism for secure access delegation across the internet. History Class Prior to the creation of OAuth, sharing of information with [...] The post What is OAuth? appeared first on Clever Engineering Blog.