diff --git a/src/healthchecks_io/client/_abstract.py b/src/healthchecks_io/client/_abstract.py
index 9797263..527223d 100644
--- a/src/healthchecks_io/client/_abstract.py
+++ b/src/healthchecks_io/client/_abstract.py
@@ -60,6 +60,123 @@ class AbstractClient(ABC):
         """Calls the API's /checks/ endpoint to get a list of checks."""
         pass
 
+    @abstractmethod
+    def get_check(self, check_id: str) -> checks.Check:  # pragma: no cover
+        """Get a single check by id.
+
+        check_id can either be a check uuid if using a read/write api key
+        or a unique key if using a read only api key.
+
+        Args:
+            check_id (str): check's uuid or unique id
+
+        Returns:
+            checks.Check: the check
+
+        Raises:
+            HCAPIAuthError: Raised when status_code == 401 or 403
+            HCAPIError: Raised when status_code is 5xx
+            CheckNotFoundError: Raised when status_code is 404
+        """
+        pass
+
+    @abstractmethod
+    def pause_check(self, check_id: str) -> checks.Check:  # pragma: no cover
+        """Disables monitoring for a check without removing it.
+
+        The check goes into a "paused" state.
+        You can resume monitoring of the check by pinging it.
+
+        check_id must be a uuid, not a unique id
+
+        Args:
+            check_id (str): check's uuid
+
+        Returns:
+            checks.Check: the check just paused
+
+        Raises:
+            HCAPIAuthError: Raised when status_code == 401 or 403
+            HCAPIError: Raised when status_code is 5xx
+            CheckNotFoundError: Raised when status_code is 404
+
+        """
+        pass
+
+    @abstractmethod
+    def delete_check(self, check_id: str) -> checks.Check:  # pragma: no cover
+        """Permanently deletes the check from the user's account.
+
+        check_id must be a uuid, not a unique id
+
+        Args:
+            check_id (str): check's uuid
+
+        Returns:
+            checks.Check: the check just deleted
+
+        Raises:
+            HCAPIAuthError: Raised when status_code == 401 or 403
+            HCAPIError: Raised when status_code is 5xx
+            CheckNotFoundError: Raised when status_code is 404
+
+        """
+        pass
+
+    @abstractmethod
+    def get_check_pings(
+        self, check_id: str
+    ) -> List[checks.CheckPings]:  # pragma: no cover
+        """Returns a list of pings this check has received.
+
+        This endpoint returns pings in reverse order (most recent first),
+        and the total number of returned pings depends on the account's
+        billing plan: 100 for free accounts, 1000 for paid accounts.
+
+        Args:
+            check_id (str): check's uuid
+
+        Returns:
+            List[checks.CheckPings]: list of pings this check has received
+
+        Raises:
+            HCAPIAuthError: Raised when status_code == 401 or 403
+            HCAPIError: Raised when status_code is 5xx
+            CheckNotFoundError: Raised when status_code is 404
+
+        """
+        pass
+
+    @abstractmethod
+    def get_check_flips(
+        self,
+        check_id: str,
+        seconds: Optional[int] = None,
+        start: Optional[int] = None,
+        end: Optional[int] = None,
+    ) -> List[checks.CheckStatuses]:  # pragma: no cover
+        """Returns a list of "flips" this check has experienced.
+
+        A flip is a change of status (from "down" to "up," or from "up" to "down").
+
+        Raises:
+            HCAPIAuthError: Raised when status_code == 401 or 403
+            HCAPIError: Raised when status_code is 5xx
+            CheckNotFoundError: Raised when status_code is 404
+            BadAPIRequestError: Raised when status_code is 400
+
+        Args:
+            check_id (str): check uuid
+            seconds (Optional[int], optional): Returns the flips from the last value seconds. Defaults to None.
+            start (Optional[int], optional): Returns flips that are newer than the specified UNIX timestamp.. Defaults to None.
+            end (Optional[int], optional): Returns flips that are older than the specified UNIX timestamp.. Defaults to None.
+
+        Returns:
+            List[checks.CheckStatuses]: List of status flips for this check
+
+        """
+        pass
+
     def _get_api_request_url(
         self, path: str, params: Optional[Dict[str, str]] = None
     ) -> str: