The Wayback Machine - https://web.archive.org/web/20210209160228/https://docs.joinmastodon.org/methods/apps/

apps

Register client applications that can be used to obtain OAuth tokens.

post
Create an application

https://mastodon.example/api/v1/apps

Create a new application to obtain OAuth2 credentials.

Returns: Application, with client_id and client_secret
OAuth: Public
Version history:
0.0.0 - added
2.7.2 - now returns vapid_key

Request

Form Data Parameters
client_name
required
string
A name for your application
redirect_uris
required
string
Where the user should be redirected after authorization. To display the authorization code to the user instead of redirecting to a web page, use urn:ietf:wg:oauth:2.0:oob in this parameter.
scopes
optional
string
Space separated list of scopes. If none is provided, defaults to read.
website
optional
string
A URL to the homepage of your app

Response

200: Success

Store the client_id and client_secret in your cache, as these will be used to obtain OAuth tokens.

{
  "id": "563419",
  "name": "test app",
  "website": null,
  "redirect_uri": "urn:ietf:wg:oauth:2.0:oob",
  "client_id": "TWhM-tNSuncnqN7DBJmoyeLnk6K3iJJ71KKXxgL1hPM",
  "client_secret": "ZEaFUFmF0umgBX1qKJDjaU99Q31lDkOU8NutzTOoliw",
  "vapid_key": "BCk-QqERU0q-CfYZjcuB6lnyyOYfJ2AifKqfeGIm7Z-HiTU5T9eTG5GxVA0_OH5mMlI4UkkDTpaZwozy0TzdZ2M="
}

422: Unprocessable Entity

If a required parameter is missing or improperly formatted, the request will fail.

{
  "error": "Validation failed: Redirect URI must be an absolute URI."
}

get
Verify your app works

https://mastodon.example/api/v1/apps/verify_credentials

Confirm that the app's OAuth2 credentials work.

Returns: Application
OAuth level: App token
Version history:
2.0.0 - added
2.7.2 - now returns vapid_key

Request

Headers
Authorization
required
string
Bearer <app token>

Response

200: Success

If the Authorization header was provided with a valid token, you should see your app returned as an Application entity.

{
  "name": "test app",
  "website": null,
  "vapid_key": "BCk-QqERU0q-CfYZjcuB6lnyyOYfJ2AifKqfeGIm7Z-HiTU5T9eTG5GxVA0_OH5mMlI4UkkDTpaZwozy0TzdZ2M="
}

401: Unauthorized

If the Authorization header contains an invalid token, is malformed, or is not present, an error will be returned indicating an authorization failure.

{
  "error": "The access token is invalid"
}

Last updated December 27, 2020 · Improve this page