diff --git a/docs/index.rst b/docs/index.rst
index 7561b6f..a7d2945 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -800,6 +800,12 @@ Reading data: Emoji
 
 .. automethod:: Mastodon.custom_emojis
 
+Reading data: Endorsements
+--------------------------
+
+.. automethod:: Mastodon.endorsements
+
+
 Writing data: Statuses
 ----------------------
 These functions allow you to post statuses to Mastodon and to
@@ -838,6 +844,8 @@ These functions allow you to interact with other accounts: To (un)follow and
 .. automethod:: Mastodon.account_unblock
 .. automethod:: Mastodon.account_mute
 .. automethod:: Mastodon.account_unmute
+.. automethod:: Mastodon.account_pin
+.. automethod:: Mastodon.account_unpin
 .. automethod:: Mastodon.account_update_credentials
 
 Writing data: Keyword filters
diff --git a/mastodon/Mastodon.py b/mastodon/Mastodon.py
index d272a33..ca7dbd6 100644
--- a/mastodon/Mastodon.py
+++ b/mastodon/Mastodon.py
@@ -923,6 +923,20 @@ class Mastodon:
         """
         return self.__api_request('GET', '/api/v1/suggestions')
     
+    ###
+    # Reading data: Endorsements
+    ###
+    @api_version("2.5.0", "2.5.0", __DICT_VERSION_ACCOUNT)
+    def endorsements(self):
+        """
+        Fetch list of users endorsemed by the logged-in user.
+
+        Returns a list of `user dicts`_.
+        
+        """
+        return self.__api_request('GET', '/api/v1/endorsements')
+    
+    
     ###
     # Reading data: Searching
     ###
@@ -1463,8 +1477,9 @@ class Mastodon:
         Returns a `relationship dict`_ containing the updated relationship to the user.
         """
         id = self.__unpack_id(id)
+        params = self.__generate_params(locals(), ['id'])
         url = '/api/v1/accounts/{0}/mute'.format(str(id))
-        return self.__api_request('POST', url)
+        return self.__api_request('POST', url, params)
 
     @api_version("1.1.0", "1.4.0", __DICT_VERSION_RELATIONSHIP)
     def account_unmute(self, id):
@@ -1545,6 +1560,28 @@ class Mastodon:
         return self.__api_request('PATCH', '/api/v1/accounts/update_credentials', params, files=files)
 
 
+    @api_version("2.5.0", "2.5.0", __DICT_VERSION_RELATIONSHIP)
+    def account_pin(self, id):
+        """
+        Pin / endorse a user.
+        
+        Returns a `relationship dict`_ containing the updated relationship to the user.
+        """
+        id = self.__unpack_id(id)
+        url = '/api/v1/accounts/{0}/pin'.format(str(id))
+        return self.__api_request('POST', url)
+
+    @api_version("2.5.0", "2.5.0", __DICT_VERSION_RELATIONSHIP)
+    def account_unpin(self, id):
+        """
+        Unpin / un-endorse a user.
+
+        Returns a `relationship dict`_ containing the updated relationship to the user.
+        """
+        id = self.__unpack_id(id)
+        url = '/api/v1/accounts/{0}/unpin'.format(str(id))
+        return self.__api_request('POST', url)
+
     ###
     # Writing data: Keyword filters
     ###
diff --git a/tests/cassettes/test_account_pin_unpin.yaml b/tests/cassettes/test_account_pin_unpin.yaml
new file mode 100644
index 0000000..eaf3563
--- /dev/null
+++ b/tests/cassettes/test_account_pin_unpin.yaml
@@ -0,0 +1,233 @@
+interactions:
+- request:
+    body: null
+    headers:
+      Accept: ['*/*']
+      Accept-Encoding: ['gzip, deflate']
+      Authorization: [Bearer __MASTODON_PY_TEST_ACCESS_TOKEN_2]
+      Connection: [keep-alive]
+      User-Agent: [python-requests/2.18.4]
+    method: GET
+    uri: http://localhost:3000/api/v1/accounts/verify_credentials
+  response:
+    body: {string: '{"id":"1","username":"admin","acct":"admin","display_name":"","locked":false,"bot":false,"created_at":"2019-04-27T18:52:42.626Z","note":"\u003cp\u003e\u003c/p\u003e","url":"http://localhost/@admin","avatar":"http://localhost/avatars/original/missing.png","avatar_static":"http://localhost/avatars/original/missing.png","header":"http://localhost/headers/original/missing.png","header_static":"http://localhost/headers/original/missing.png","followers_count":0,"following_count":0,"statuses_count":0,"source":{"privacy":"public","sensitive":false,"language":null,"note":"","fields":[]},"emojis":[],"fields":[]}'}
+    headers:
+      Cache-Control: ['max-age=0, private, must-revalidate']
+      Content-Type: [application/json; charset=utf-8]
+      ETag: [W/"0f8b38bbae62fe172a62496fe49e206e"]
+      Referrer-Policy: [strict-origin-when-cross-origin]
+      Transfer-Encoding: [chunked]
+      Vary: ['Accept-Encoding, Origin']
+      X-Content-Type-Options: [nosniff]
+      X-Download-Options: [noopen]
+      X-Frame-Options: [SAMEORIGIN]
+      X-Permitted-Cross-Domain-Policies: [none]
+      X-Request-Id: [692fe5c4-e557-4dd5-99f0-44b812f2e9f3]
+      X-Runtime: ['0.019931']
+      X-XSS-Protection: [1; mode=block]
+      content-length: ['609']
+    status: {code: 200, message: OK}
+- request:
+    body: reblogs=1&id=1
+    headers:
+      Accept: ['*/*']
+      Accept-Encoding: ['gzip, deflate']
+      Authorization: [Bearer __MASTODON_PY_TEST_ACCESS_TOKEN]
+      Connection: [keep-alive]
+      Content-Length: ['14']
+      Content-Type: [application/x-www-form-urlencoded]
+      User-Agent: [python-requests/2.18.4]
+    method: POST
+    uri: http://localhost:3000/api/v1/accounts/1/follow
+  response:
+    body: {string: '{"id":"1","following":true,"showing_reblogs":true,"followed_by":false,"blocking":false,"blocked_by":false,"muting":false,"muting_notifications":false,"requested":false,"domain_blocking":false,"endorsed":false}'}
+    headers:
+      Cache-Control: ['max-age=0, private, must-revalidate']
+      Content-Type: [application/json; charset=utf-8]
+      ETag: [W/"1e1fa14c270ff6960152323eda93cc79"]
+      Referrer-Policy: [strict-origin-when-cross-origin]
+      Transfer-Encoding: [chunked]
+      Vary: ['Accept-Encoding, Origin']
+      X-Content-Type-Options: [nosniff]
+      X-Download-Options: [noopen]
+      X-Frame-Options: [SAMEORIGIN]
+      X-Permitted-Cross-Domain-Policies: [none]
+      X-Request-Id: [ad3bfb7e-d816-4b51-8c90-e431d2330775]
+      X-Runtime: ['0.062775']
+      X-XSS-Protection: [1; mode=block]
+      content-length: ['209']
+    status: {code: 200, message: OK}
+- request:
+    body: null
+    headers:
+      Accept: ['*/*']
+      Accept-Encoding: ['gzip, deflate']
+      Authorization: [Bearer __MASTODON_PY_TEST_ACCESS_TOKEN]
+      Connection: [keep-alive]
+      Content-Length: ['0']
+      User-Agent: [python-requests/2.18.4]
+    method: POST
+    uri: http://localhost:3000/api/v1/accounts/1/unpin
+  response:
+    body: {string: '{"id":"1","following":true,"showing_reblogs":true,"followed_by":false,"blocking":false,"blocked_by":false,"muting":false,"muting_notifications":false,"requested":false,"domain_blocking":false,"endorsed":false}'}
+    headers:
+      Cache-Control: ['max-age=0, private, must-revalidate']
+      Content-Type: [application/json; charset=utf-8]
+      ETag: [W/"1e1fa14c270ff6960152323eda93cc79"]
+      Referrer-Policy: [strict-origin-when-cross-origin]
+      Transfer-Encoding: [chunked]
+      Vary: ['Accept-Encoding, Origin']
+      X-Content-Type-Options: [nosniff]
+      X-Download-Options: [noopen]
+      X-Frame-Options: [SAMEORIGIN]
+      X-Permitted-Cross-Domain-Policies: [none]
+      X-Request-Id: [312e2867-4349-4145-8bb0-231e59e3d02c]
+      X-Runtime: ['0.065496']
+      X-XSS-Protection: [1; mode=block]
+      content-length: ['209']
+    status: {code: 200, message: OK}
+- request:
+    body: null
+    headers:
+      Accept: ['*/*']
+      Accept-Encoding: ['gzip, deflate']
+      Authorization: [Bearer __MASTODON_PY_TEST_ACCESS_TOKEN]
+      Connection: [keep-alive]
+      Content-Length: ['0']
+      User-Agent: [python-requests/2.18.4]
+    method: POST
+    uri: http://localhost:3000/api/v1/accounts/1/pin
+  response:
+    body: {string: '{"id":"1","following":true,"showing_reblogs":true,"followed_by":false,"blocking":false,"blocked_by":false,"muting":false,"muting_notifications":false,"requested":false,"domain_blocking":false,"endorsed":true}'}
+    headers:
+      Cache-Control: ['max-age=0, private, must-revalidate']
+      Content-Type: [application/json; charset=utf-8]
+      ETag: [W/"c6dfb53299bc83b46a9edb08d3930925"]
+      Referrer-Policy: [strict-origin-when-cross-origin]
+      Transfer-Encoding: [chunked]
+      Vary: ['Accept-Encoding, Origin']
+      X-Content-Type-Options: [nosniff]
+      X-Download-Options: [noopen]
+      X-Frame-Options: [SAMEORIGIN]
+      X-Permitted-Cross-Domain-Policies: [none]
+      X-Request-Id: [c9dae17d-d180-447b-bb49-4f6d4ce07f40]
+      X-Runtime: ['0.050245']
+      X-XSS-Protection: [1; mode=block]
+      content-length: ['208']
+    status: {code: 200, message: OK}
+- request:
+    body: null
+    headers:
+      Accept: ['*/*']
+      Accept-Encoding: ['gzip, deflate']
+      Authorization: [Bearer __MASTODON_PY_TEST_ACCESS_TOKEN]
+      Connection: [keep-alive]
+      User-Agent: [python-requests/2.18.4]
+    method: GET
+    uri: http://localhost:3000/api/v1/endorsements
+  response:
+    body: {string: '[{"id":"1","username":"admin","acct":"admin","display_name":"","locked":false,"bot":false,"created_at":"2019-04-27T18:52:42.626Z","note":"\u003cp\u003e\u003c/p\u003e","url":"http://localhost/@admin","avatar":"http://localhost/avatars/original/missing.png","avatar_static":"http://localhost/avatars/original/missing.png","header":"http://localhost/headers/original/missing.png","header_static":"http://localhost/headers/original/missing.png","followers_count":1,"following_count":0,"statuses_count":0,"emojis":[],"fields":[]}]'}
+    headers:
+      Cache-Control: ['max-age=0, private, must-revalidate']
+      Content-Type: [application/json; charset=utf-8]
+      ETag: [W/"ae491d6254719d99832526fc14bfb68b"]
+      Link: ['<http://localhost:3000/api/v1/endorsements?since_id=1>; rel="prev"']
+      Referrer-Policy: [strict-origin-when-cross-origin]
+      Transfer-Encoding: [chunked]
+      Vary: ['Accept-Encoding, Origin']
+      X-Content-Type-Options: [nosniff]
+      X-Download-Options: [noopen]
+      X-Frame-Options: [SAMEORIGIN]
+      X-Permitted-Cross-Domain-Policies: [none]
+      X-Request-Id: [855af719-1d1a-4fe0-93e7-b2ff9293a363]
+      X-Runtime: ['0.018452']
+      X-XSS-Protection: [1; mode=block]
+      content-length: ['525']
+    status: {code: 200, message: OK}
+- request:
+    body: null
+    headers:
+      Accept: ['*/*']
+      Accept-Encoding: ['gzip, deflate']
+      Authorization: [Bearer __MASTODON_PY_TEST_ACCESS_TOKEN]
+      Connection: [keep-alive]
+      Content-Length: ['0']
+      User-Agent: [python-requests/2.18.4]
+    method: POST
+    uri: http://localhost:3000/api/v1/accounts/1/unpin
+  response:
+    body: {string: '{"id":"1","following":true,"showing_reblogs":true,"followed_by":false,"blocking":false,"blocked_by":false,"muting":false,"muting_notifications":false,"requested":false,"domain_blocking":false,"endorsed":false}'}
+    headers:
+      Cache-Control: ['max-age=0, private, must-revalidate']
+      Content-Type: [application/json; charset=utf-8]
+      ETag: [W/"1e1fa14c270ff6960152323eda93cc79"]
+      Referrer-Policy: [strict-origin-when-cross-origin]
+      Transfer-Encoding: [chunked]
+      Vary: ['Accept-Encoding, Origin']
+      X-Content-Type-Options: [nosniff]
+      X-Download-Options: [noopen]
+      X-Frame-Options: [SAMEORIGIN]
+      X-Permitted-Cross-Domain-Policies: [none]
+      X-Request-Id: [e750e8c4-eae0-4ed6-9563-00ac35d85daa]
+      X-Runtime: ['0.025393']
+      X-XSS-Protection: [1; mode=block]
+      content-length: ['209']
+    status: {code: 200, message: OK}
+- request:
+    body: null
+    headers:
+      Accept: ['*/*']
+      Accept-Encoding: ['gzip, deflate']
+      Authorization: [Bearer __MASTODON_PY_TEST_ACCESS_TOKEN]
+      Connection: [keep-alive]
+      User-Agent: [python-requests/2.18.4]
+    method: GET
+    uri: http://localhost:3000/api/v1/endorsements
+  response:
+    body: {string: '[]'}
+    headers:
+      Cache-Control: ['max-age=0, private, must-revalidate']
+      Content-Type: [application/json; charset=utf-8]
+      ETag: [W/"e2dc74be154e07a1d543fffa1604d2ab"]
+      Referrer-Policy: [strict-origin-when-cross-origin]
+      Transfer-Encoding: [chunked]
+      Vary: ['Accept-Encoding, Origin']
+      X-Content-Type-Options: [nosniff]
+      X-Download-Options: [noopen]
+      X-Frame-Options: [SAMEORIGIN]
+      X-Permitted-Cross-Domain-Policies: [none]
+      X-Request-Id: [15996817-bf63-4f5e-a34d-c6cf7702822c]
+      X-Runtime: ['0.019443']
+      X-XSS-Protection: [1; mode=block]
+      content-length: ['2']
+    status: {code: 200, message: OK}
+- request:
+    body: null
+    headers:
+      Accept: ['*/*']
+      Accept-Encoding: ['gzip, deflate']
+      Authorization: [Bearer __MASTODON_PY_TEST_ACCESS_TOKEN]
+      Connection: [keep-alive]
+      Content-Length: ['0']
+      User-Agent: [python-requests/2.18.4]
+    method: POST
+    uri: http://localhost:3000/api/v1/accounts/1/unfollow
+  response:
+    body: {string: '{"id":"1","following":false,"showing_reblogs":false,"followed_by":false,"blocking":false,"blocked_by":false,"muting":false,"muting_notifications":false,"requested":false,"domain_blocking":false,"endorsed":false}'}
+    headers:
+      Cache-Control: ['max-age=0, private, must-revalidate']
+      Content-Type: [application/json; charset=utf-8]
+      ETag: [W/"714cd19713205feb75ce771b61d4564b"]
+      Referrer-Policy: [strict-origin-when-cross-origin]
+      Transfer-Encoding: [chunked]
+      Vary: ['Accept-Encoding, Origin']
+      X-Content-Type-Options: [nosniff]
+      X-Download-Options: [noopen]
+      X-Frame-Options: [SAMEORIGIN]
+      X-Permitted-Cross-Domain-Policies: [none]
+      X-Request-Id: [7710c7c9-40d9-4cd9-b483-2863d00916ff]
+      X-Runtime: ['0.041778']
+      X-XSS-Protection: [1; mode=block]
+      content-length: ['211']
+    status: {code: 200, message: OK}
+version: 1
diff --git a/tests/cassettes/test_mutes.yaml b/tests/cassettes/test_mutes.yaml
index 73b8df6..aca7b97 100644
--- a/tests/cassettes/test_mutes.yaml
+++ b/tests/cassettes/test_mutes.yaml
@@ -14,7 +14,7 @@ interactions:
     headers:
       Cache-Control: ['max-age=0, private, must-revalidate']
       Content-Type: [application/json; charset=utf-8]
-      ETag: [W/"90b6becb2b7152e68f928ca54703d5b5"]
+      ETag: [W/"0c6c8cc3cb75164dfb4ec124c252008f"]
       Referrer-Policy: [strict-origin-when-cross-origin]
       Transfer-Encoding: [chunked]
       Vary: ['Accept-Encoding, Origin']
@@ -22,8 +22,8 @@ interactions:
       X-Download-Options: [noopen]
       X-Frame-Options: [SAMEORIGIN]
       X-Permitted-Cross-Domain-Policies: [none]
-      X-Request-Id: [1ecc4a5b-3fa6-4aab-9f51-62a63df2668c]
-      X-Runtime: ['0.021739']
+      X-Request-Id: [1bef2ecf-ea12-422d-802a-456ab7096e0b]
+      X-Runtime: ['0.060542']
       X-XSS-Protection: [1; mode=block]
       content-length: ['2']
     status: {code: 200, message: OK}
diff --git a/tests/conftest.py b/tests/conftest.py
index 3291bbe..66fffdc 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,6 +1,6 @@
 import pytest
 
-def _api(access_token='__MASTODON_PY_TEST_ACCESS_TOKEN', version="2.4.3", version_check_mode="created"):
+def _api(access_token='__MASTODON_PY_TEST_ACCESS_TOKEN', version="2.8.0", version_check_mode="created"):
     import mastodon
     return mastodon.Mastodon(
             api_base_url='http://localhost:3000',
diff --git a/tests/test_account.py b/tests/test_account.py
index 77a8f48..cd7633d 100644
--- a/tests/test_account.py
+++ b/tests/test_account.py
@@ -175,3 +175,34 @@ def test_follow_suggestions(api2, status):
     suggestions2 = api2.suggestions()
     assert(len(suggestions2) < len(suggestions))
     
+@pytest.mark.vcr()
+def test_account_pin_unpin(api, api2):
+    user = api2.account_verify_credentials()
+    
+    # Make sure we are in the correct state
+    try:
+        api.account_follow(user)
+    except:
+        pass
+    
+    try:
+        api.account_unpin(user)
+    except:
+        pass
+    
+    relationship = api.account_pin(user)
+    endorsed = api.endorsements()
+        
+    try:
+        assert relationship
+        assert relationship['endorsed']
+        assert user["id"] in map(lambda x: x["id"], endorsed)
+    finally:
+        relationship = api.account_unpin(user)
+        endorsed2 = api.endorsements()
+        api.account_unfollow(user)        
+        assert relationship
+        assert not relationship['endorsed']
+        assert not user["id"] in map(lambda x: x["id"], endorsed2)
+
+