diff --git a/irrd/conf/__init__.py b/irrd/conf/__init__.py
index 9260ed2..1d7bcb0 100644
--- a/irrd/conf/__init__.py
+++ b/irrd/conf/__init__.py
@@ -284,6 +284,7 @@ def _validate_subconfig(key, value):
         expected_access_lists = {
             config.get("server.whois.access_list"),
             config.get("server.http.status_access_list"),
+            config.get("server.http.maintainer_users_access_list"),
         }
 
         if not self._check_is_str(config, "email.from") or "@" not in config.get("email.from", ""):
@@ -303,6 +304,7 @@ def _validate_subconfig(key, value):
             "email.footer",
             "server.whois.access_list",
             "server.http.status_access_list",
+            "server.http.maintainer_users_access_list",
             "rpki.notify_invalid_subject",
             "rpki.notify_invalid_header",
             "rpki.slurm_source",
diff --git a/irrd/conf/known_keys.py b/irrd/conf/known_keys.py
index 8da45fa..83e7f94 100644
--- a/irrd/conf/known_keys.py
+++ b/irrd/conf/known_keys.py
@@ -17,6 +17,7 @@
                 "interface": {},
                 "port": {},
                 "status_access_list": {},
+                "maintainer_users_access_list": {},
                 "event_stream_access_list": {},
                 "workers": {},
                 "forwarded_allowed_ips": {},
diff --git a/irrd/server/http/app.py b/irrd/server/http/app.py
index 5916bac..291aad9 100644
--- a/irrd/server/http/app.py
+++ b/irrd/server/http/app.py
@@ -29,6 +29,7 @@
     StatusEndpoint,
     SuspensionSubmissionEndpoint,
     WhoisQueryEndpoint,
+    MaintainerUsersEndpoint,
 )
 from irrd.server.http.event_stream import (
     EventStreamEndpoint,
@@ -116,6 +117,7 @@ async def shutdown():
     Mount("/v1/whois", WhoisQueryEndpoint),
     Mount("/v1/submit", ObjectSubmissionEndpoint),
     Mount("/v1/suspension", SuspensionSubmissionEndpoint),
+    Mount("/v1/mntner_users/{source}/{mntner}", MaintainerUsersEndpoint),
     Mount("/graphql", graphql),
     Mount("/ui", name="ui", routes=UI_ROUTES),
     Mount("/static", name="static", app=StaticFiles(directory=STATIC_DIR)),
diff --git a/irrd/server/http/endpoints_api.py b/irrd/server/http/endpoints_api.py
index 6692ffa..2aad0ae 100644
--- a/irrd/server/http/endpoints_api.py
+++ b/irrd/server/http/endpoints_api.py
@@ -6,6 +6,8 @@
 import pydantic
 from asgiref.sync import sync_to_async
 from IPy import IP
+from irrd.storage.models import AuthMntner, AuthPermission, AuthUser
+from irrd.storage.orm_provider import ORMSessionProvider
 from starlette.endpoints import HTTPEndpoint
 from starlette.requests import Request
 from starlette.responses import JSONResponse, PlainTextResponse, Response
@@ -132,3 +134,34 @@ async def post(self, request: Request) -> Response:
         handler = ChangeSubmissionHandler()
         await sync_to_async(handler.load_suspension_submission)(data=data, request_meta=request_meta)
         return JSONResponse(handler.submitter_report_json())
+
+
+class MaintainerUsersEndpoint(HTTPEndpoint):
+    async def get(self, request: Request) -> Response:
+        host = request.client.host if request.client else STARLETTE_TEST_CLIENT_HOST
+        if not is_client_permitted(host, "server.http.maintainer_users_access_list"):
+            return PlainTextResponse("Access denied", status_code=403)
+
+        session_provider = ORMSessionProvider()
+        target = session_provider.session.query(AuthMntner).filter_by(
+            rpsl_mntner_pk=request.path_params["mntner"],
+            rpsl_mntner_source=request.path_params["source"],
+        )
+        mntner = await session_provider.run(target.one)
+        if not mntner:
+            return PlainTextResponse(status_code=404)
+
+        target = session_provider.session.query(AuthPermission).filter_by(
+            mntner=mntner,
+        ).join(AuthUser)
+        permissions = await session_provider.run(target.all)
+
+        return JSONResponse({
+            "users": [{
+                "user_management": permission.user_management,
+                "user_id": str(permission.user.pk),
+                "email": permission.user.email,
+                "name": permission.user.name,
+                "oidc_sub": permission.user.oidc_sub,
+            } for permission in permissions],
+        })
\ No newline at end of file