Developers: OAuth support
For increased security and more resilient third-party apps, we’ve started early testing of OAuth support in the Tumblr API.
We’ve modeled our implementation after Twitter’s in many ways, supporting OAuth 1.0a with optional xAuth, upon request, where it makes sense such as mobile and native applications.
The existing authentication methods in the API are still supported for now, but we encourage developers to migrate to OAuth when possible.
To get started with Tumblr’s OAuth, integrate an OAuth consumer library into your project and get a consumer key by registering your app.
This is still in its early testing stages, so please report any issues. Thanks.