# Login Providers

SNS and Email-based login options enable you to connect your wallet without requiring in-depth knowledge of blockchain and cryptography. Here are the available options and additional details.

{% hint style="success" %}
Feel free to contact us if the authentication provider you are looking for is not on the list.
{% endhint %}

### Login Providers

SNS and Email-based authentications are powerd by Web3Auth library.

Users can obtain the same EOA across other applications such as Opensea or Rarible, that have implemented the same Web3Auth library.

{% hint style="danger" %}
Please be aware that Email Password is not accessible in any other applications that do not utilize Startrail-sdk-js. For new user registrations, please utilize Email Passwordless instead due to this limitation.
{% endhint %}

<table><thead><tr><th width="162.33333333333331">Provider</th><th>Available Values</th><th>Verifier on STG</th><th>Verifier on PROD</th></tr></thead><tbody><tr><td>Google</td><td><ul><li>user name</li><li>email</li><li>profile image</li></ul></td><td>google</td><td>google</td></tr><tr><td>LINE</td><td><ul><li>user name</li><li>profile image</li></ul></td><td>startrail-auth0-line-staging</td><td>startrail-auth0-line</td></tr><tr><td>Facebook</td><td><ul><li>user name</li><li>email</li><li>profile image</li></ul></td><td>facebook</td><td>facebook</td></tr><tr><td>Twitter</td><td><ul><li>user name</li><li>email</li><li>profile image</li></ul></td><td>torus-auth0-twitter</td><td>torus-auth0-twitter</td></tr><tr><td>Apple</td><td><ul><li>user name</li><li>email</li><li>profile image</li></ul></td><td>torus-auth0-apple</td><td>torus-auth0-apple</td></tr><tr><td>Email Passwordless</td><td><ul><li>email</li></ul></td><td>torus-auth0-email-passwordless</td><td>torus-auth0-email-passwordless</td></tr><tr><td>Email Password</td><td><ul><li>email</li><li>profile image</li></ul></td><td>startrail-auth0-email-password</td><td>startrail-auth0-staging</td></tr></tbody></table>


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.startrail.io/startrail-sdk-js/login-providers.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.