# Error 401 : undefined https://dsp-uchdollar.cloud.dreamfactory.com/rest/api\_docs what do i do? **URL:** \ **Category:** REST API\ **Created:** [July 23, 2015, 3:07pm UTC](https://community.dreamfactory.com/t/error-401-undefined-https-dsp-uchdollar-cloud-dreamfactory-com-rest-api-docs-what-do-i-do/1300 "2015-07-23T15:07:35Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![uchdollar](https://yyz1.discourse-cdn.com/flex035/user_avatar/community.dreamfactory.com/uchdollar/32/344_2.png) [@uchdollar](https://community.dreamfactory.com/u/uchdollar)\ **Post date:** [July 23, 2015, 3:07pm UTC](https://community.dreamfactory.com/t/error-401-undefined-https-dsp-uchdollar-cloud-dreamfactory-com-rest-api-docs-what-do-i-do/1300/1 "2015-07-23T15:07:35Z")
I’m very new to dreamfactory, and I was justadding a REST API to a db service, now, when I wanted to access my API docs, I get this unknown error 401 : undefined [https://dsp-uchdollar.cloud.dreamfactory.com/rest/api\_docs](https://dsp-uchdollar.cloud.dreamfactory.com/rest/api_docs). What do I do about it? Do help me ---
**Author:** ![formerstaff](https://yyz1.discourse-cdn.com/flex035/user_avatar/community.dreamfactory.com/formerstaff/32/1133_2.png) [@formerstaff](https://community.dreamfactory.com/u/formerstaff)\ **Post date:** [July 23, 2015, 3:25pm UTC](https://community.dreamfactory.com/t/error-401-undefined-https-dsp-uchdollar-cloud-dreamfactory-com-rest-api-docs-what-do-i-do/1300/2 "2015-07-23T15:25:31Z")
If you are trying to access API Docs in the browser you should be using [https://dsp-uchdollar.cloud.dreamfactory.com/dreamfactory/dist/index.html#/apidocs](https://dsp-uchdollar.cloud.dreamfactory.com/dreamfactory/dist/index.html#/apidocs) and you will need to be logged in. If you are using an application (for example the using the javascript SDK), which tells you to set your $dsp\_url to https://_your\_dsp\_hostname\_here_/rest/api\_docs, you need to make sure you using a valid session.