diff --git a/backend/app/services/psa/autotask/provider.py b/backend/app/services/psa/autotask/provider.py
index f7fb21fe..3af30de9 100644
--- a/backend/app/services/psa/autotask/provider.py
+++ b/backend/app/services/psa/autotask/provider.py
@@ -13,6 +13,9 @@ from app.services.psa.types import (
     PSATimeEntry,
     PSABoard,
     PaginatedTicketResult,
+    PSAResource,
+    PSACreatedTicket,
+    TicketCreatePayload,
 )
 
 
@@ -75,3 +78,18 @@ class AutotaskProvider(PSAProvider):
         work_type: str | None = None,
     ) -> PSATimeEntry:
         raise NotImplementedError("Autotask integration coming soon")
+
+    async def list_resources(self, ticket_id: int) -> list[PSAResource]:
+        raise NotImplementedError("Autotask integration coming soon")
+
+    async def add_resource(self, ticket_id: int, member_id: int) -> PSAResource:
+        raise NotImplementedError("Autotask integration coming soon")
+
+    async def remove_resource(self, ticket_id: int, member_id: int) -> None:
+        raise NotImplementedError("Autotask integration coming soon")
+
+    async def create_ticket(self, payload: TicketCreatePayload) -> PSACreatedTicket:
+        raise NotImplementedError("Autotask integration coming soon")
+
+    async def list_priorities(self) -> list[dict]:
+        raise NotImplementedError("Autotask integration coming soon")
diff --git a/backend/app/services/psa/base.py b/backend/app/services/psa/base.py
index 913dbaee..8f3ab8a8 100644
--- a/backend/app/services/psa/base.py
+++ b/backend/app/services/psa/base.py
@@ -14,6 +14,9 @@ from .types import (
     PSATimeEntry,
     PSABoard,
     PaginatedTicketResult,
+    PSAResource,
+    PSACreatedTicket,
+    TicketCreatePayload,
 )
 
 
@@ -84,3 +87,23 @@ class PSAProvider(ABC):
         work_type: str | None = None,
     ) -> PSATimeEntry:
         ...
+
+    @abstractmethod
+    async def list_resources(self, ticket_id: int) -> list[PSAResource]:
+        ...
+
+    @abstractmethod
+    async def add_resource(self, ticket_id: int, member_id: int) -> PSAResource:
+        ...
+
+    @abstractmethod
+    async def remove_resource(self, ticket_id: int, member_id: int) -> None:
+        ...
+
+    @abstractmethod
+    async def create_ticket(self, payload: TicketCreatePayload) -> PSACreatedTicket:
+        ...
+
+    @abstractmethod
+    async def list_priorities(self) -> list[dict]:
+        ...
diff --git a/backend/app/services/psa/halopsa/provider.py b/backend/app/services/psa/halopsa/provider.py
index 2855d5e2..d8f2573e 100644
--- a/backend/app/services/psa/halopsa/provider.py
+++ b/backend/app/services/psa/halopsa/provider.py
@@ -13,6 +13,9 @@ from app.services.psa.types import (
     PSATimeEntry,
     PSABoard,
     PaginatedTicketResult,
+    PSAResource,
+    PSACreatedTicket,
+    TicketCreatePayload,
 )
 
 
@@ -75,3 +78,18 @@ class HaloPSAProvider(PSAProvider):
         work_type: str | None = None,
     ) -> PSATimeEntry:
         raise NotImplementedError("Halo PSA integration coming soon")
+
+    async def list_resources(self, ticket_id: int) -> list[PSAResource]:
+        raise NotImplementedError("Halo PSA integration coming soon")
+
+    async def add_resource(self, ticket_id: int, member_id: int) -> PSAResource:
+        raise NotImplementedError("Halo PSA integration coming soon")
+
+    async def remove_resource(self, ticket_id: int, member_id: int) -> None:
+        raise NotImplementedError("Halo PSA integration coming soon")
+
+    async def create_ticket(self, payload: TicketCreatePayload) -> PSACreatedTicket:
+        raise NotImplementedError("Halo PSA integration coming soon")
+
+    async def list_priorities(self) -> list[dict]:
+        raise NotImplementedError("Halo PSA integration coming soon")
diff --git a/backend/app/services/psa/types.py b/backend/app/services/psa/types.py
index 025fe756..2ac841b5 100644
--- a/backend/app/services/psa/types.py
+++ b/backend/app/services/psa/types.py
@@ -80,6 +80,33 @@ class PaginatedTicketResult(BaseModel):
     page_size: int
 
 
+class PSAResource(BaseModel):
+    member_id: int
+    member_name: str
+    member_identifier: str
+    is_rf_user: bool = False
+
+
+class PSACreatedTicket(BaseModel):
+    id: int
+    summary: str
+    board_name: str
+    status_name: str
+    priority_name: str
+    company_name: str
+    resources: list[PSAResource] = []
+
+
+class TicketCreatePayload(BaseModel):
+    summary: str
+    company_id: int
+    board_id: int
+    status_id: int
+    priority_id: int
+    description: str | None = None
+    assigned_member_id: int | None = None
+
+
 class NoteType:
     INTERNAL_ANALYSIS = "internal_analysis"
     RESOLUTION = "resolution"