diff --git a/app/api/routers/misc.py b/app/api/routers/misc.py
index 83b9467..fefa4a5 100644
--- a/app/api/routers/misc.py
+++ b/app/api/routers/misc.py
@@ -13,7 +13,7 @@ from pydantic import BaseModel
 
 from app.core.config import get_db
 from app.api.deps import get_current_user_or_apikey
-from app.api.rbac import ensure_can_edit_milestone
+from app.api.rbac import check_project_role, ensure_can_edit_milestone
 from app.models import models
 from app.models.apikey import APIKey
 from app.models.activity import ActivityLog
@@ -484,26 +484,58 @@ def create_milestone_task(project_code: str, milestone_id: int, task_data: dict,
 
 # ============ Supports ============
 
+
+def _find_support_by_id_or_code(db: Session, identifier: str) -> Support | None:
+    try:
+        support_id = int(identifier)
+        support = db.query(Support).filter(Support.id == support_id).first()
+        if support:
+            return support
+    except (TypeError, ValueError):
+        pass
+    return db.query(Support).filter(Support.support_code == str(identifier)).first()
+
+
+
+def _serialize_support(db: Session, support: Support) -> dict:
+    project = db.query(models.Project).filter(models.Project.id == support.project_id).first()
+    milestone = db.query(MilestoneModel).filter(MilestoneModel.id == support.milestone_id).first()
+    assignee = None
+    if support.assignee_id:
+        assignee = db.query(models.User).filter(models.User.id == support.assignee_id).first()
+
+    return {
+        "id": support.id,
+        "code": support.support_code,
+        "support_code": support.support_code,
+        "title": support.title,
+        "description": support.description,
+        "status": support.status.value if hasattr(support.status, "value") else support.status,
+        "priority": support.priority.value if hasattr(support.priority, "value") else support.priority,
+        "project_id": support.project_id,
+        "project_code": project.project_code if project else None,
+        "milestone_id": support.milestone_id,
+        "milestone_code": milestone.milestone_code if milestone else None,
+        "reporter_id": support.reporter_id,
+        "assignee_id": support.assignee_id,
+        "taken_by": assignee.username if assignee else None,
+        "created_at": support.created_at,
+        "updated_at": support.updated_at,
+    }
+
+
 @router.get("/supports/{project_code}/{milestone_id}", tags=["Supports"])
 def list_supports(project_code: str, milestone_id: int, db: Session = Depends(get_db)):
     project = db.query(models.Project).filter(models.Project.project_code == project_code).first()
     if not project:
         raise HTTPException(status_code=404, detail="Project not found")
-    
+
     supports = db.query(Support).filter(
         Support.project_id == project.id,
         Support.milestone_id == milestone_id
     ).all()
-    
-    return [{
-        "id": s.id,
-        "title": s.title,
-        "description": s.description,
-        "status": s.status.value,
-        "priority": s.priority.value,
-        "assignee_id": s.assignee_id,
-        "created_at": s.created_at,
-    } for s in supports]
+
+    return [_serialize_support(db, s) for s in supports]
 
 
 @router.post("/supports/{project_code}/{milestone_id}", status_code=status.HTTP_201_CREATED, tags=["Supports"])
@@ -511,19 +543,19 @@ def create_support(project_code: str, milestone_id: int, support_data: dict, db:
     project = db.query(models.Project).filter(models.Project.project_code == project_code).first()
     if not project:
         raise HTTPException(status_code=404, detail="Project not found")
-    
+
     ms = db.query(MilestoneModel).filter(MilestoneModel.id == milestone_id).first()
     if not ms:
         raise HTTPException(status_code=404, detail="Milestone not found")
-    
+
     if ms.status and hasattr(ms.status, "value") and ms.status.value == "undergoing":
         raise HTTPException(status_code=400, detail="Cannot add items to a milestone that is undergoing")
-    
+
     milestone_code = ms.milestone_code or f"m{ms.id}"
     max_support = db.query(Support).filter(Support.milestone_id == milestone_id).order_by(Support.id.desc()).first()
     next_num = (max_support.id + 1) if max_support else 1
     support_code = f"{milestone_code}:S{next_num:05x}"
-    
+
     support = Support(
         title=support_data.get("title"),
         description=support_data.get("description"),
@@ -537,7 +569,89 @@ def create_support(project_code: str, milestone_id: int, support_data: dict, db:
     db.add(support)
     db.commit()
     db.refresh(support)
-    return support
+    return _serialize_support(db, support)
+
+
+@router.get("/supports/{support_id}", tags=["Supports"])
+def get_support(support_id: str, db: Session = Depends(get_db), current_user: models.User = Depends(get_current_user_or_apikey)):
+    support = _find_support_by_id_or_code(db, support_id)
+    if not support:
+        raise HTTPException(status_code=404, detail="Support not found")
+    check_project_role(db, current_user.id, support.project_id, min_role="viewer")
+    return _serialize_support(db, support)
+
+
+@router.patch("/supports/{support_id}", tags=["Supports"])
+def update_support(support_id: str, support_data: dict, db: Session = Depends(get_db), current_user: models.User = Depends(get_current_user_or_apikey)):
+    support = _find_support_by_id_or_code(db, support_id)
+    if not support:
+        raise HTTPException(status_code=404, detail="Support not found")
+    check_project_role(db, current_user.id, support.project_id, min_role="dev")
+
+    allowed_fields = {"title", "description", "status", "priority"}
+    updated = False
+    for field, value in support_data.items():
+        if field not in allowed_fields:
+            continue
+        if field == "status" and value is not None:
+            value = SupportStatus(value)
+        if field == "priority" and value is not None:
+            value = SupportPriority(value)
+        setattr(support, field, value)
+        updated = True
+
+    if not updated:
+        raise HTTPException(status_code=400, detail="No supported fields to update")
+
+    db.commit()
+    db.refresh(support)
+    return _serialize_support(db, support)
+
+
+@router.delete("/supports/{support_id}", status_code=status.HTTP_204_NO_CONTENT, tags=["Supports"])
+def delete_support(support_id: str, db: Session = Depends(get_db), current_user: models.User = Depends(get_current_user_or_apikey)):
+    support = _find_support_by_id_or_code(db, support_id)
+    if not support:
+        raise HTTPException(status_code=404, detail="Support not found")
+    check_project_role(db, current_user.id, support.project_id, min_role="dev")
+    db.delete(support)
+    db.commit()
+    return None
+
+
+@router.post("/supports/{support_id}/take", tags=["Supports"])
+def take_support(support_id: str, db: Session = Depends(get_db), current_user: models.User = Depends(get_current_user_or_apikey)):
+    support = _find_support_by_id_or_code(db, support_id)
+    if not support:
+        raise HTTPException(status_code=404, detail="Support not found")
+    check_project_role(db, current_user.id, support.project_id, min_role="dev")
+
+    if support.assignee_id and support.assignee_id != current_user.id:
+        assignee = db.query(models.User).filter(models.User.id == support.assignee_id).first()
+        assignee_name = assignee.username if assignee else str(support.assignee_id)
+        raise HTTPException(status_code=409, detail=f"Support is already taken by {assignee_name}")
+
+    support.assignee_id = current_user.id
+    db.commit()
+    db.refresh(support)
+    return _serialize_support(db, support)
+
+
+@router.post("/supports/{support_id}/transition", tags=["Supports"])
+def transition_support(support_id: str, support_data: dict, db: Session = Depends(get_db), current_user: models.User = Depends(get_current_user_or_apikey)):
+    support = _find_support_by_id_or_code(db, support_id)
+    if not support:
+        raise HTTPException(status_code=404, detail="Support not found")
+    check_project_role(db, current_user.id, support.project_id, min_role="dev")
+
+    status_value = support_data.get("status")
+    if not status_value:
+        raise HTTPException(status_code=400, detail="status is required")
+
+    support.status = SupportStatus(status_value)
+    db.commit()
+    db.refresh(support)
+    return _serialize_support(db, support)
 
 
 # ============ Meetings ============