diff --git a/include/ircd/m/fed/public_rooms.h b/include/ircd/m/fed/public_rooms.h
index 24c75225d..20787d08b 100644
--- a/include/ircd/m/fed/public_rooms.h
+++ b/include/ircd/m/fed/public_rooms.h
@@ -43,4 +43,5 @@ struct ircd::m::fed::public_rooms::opts
 	string_view since;
 	string_view third_party_instance_id;
 	bool include_all_networks {true};
+	string_view search_term;
 };
diff --git a/matrix/fed.cc b/matrix/fed.cc
index 55dd0ae2a..d7b8e53e5 100644
--- a/matrix/fed.cc
+++ b/matrix/fed.cc
@@ -185,7 +185,7 @@ ircd::m::fed::public_rooms::public_rooms(const string_view &remote,
 		opts.remote = remote;
 
 	if(likely(!defined(json::get<"method"_>(opts.request))))
-		json::get<"method"_>(opts.request) = "GET";
+		json::get<"method"_>(opts.request) = "POST";
 
 	mutable_buffer buf{buf_};
 	if(likely(!defined(json::get<"uri"_>(opts.request))))
@@ -194,25 +194,82 @@ ircd::m::fed::public_rooms::public_rooms(const string_view &remote,
 		std::stringstream qss;
 		pubsetbuf(qss, query);
 
-		if(opts.since)
-			qss << "&since="
-			    << url::encode(since, opts.since);
+		if(json::get<"method"_>(opts.request) == "GET")
+		{
+			if(opts.since)
+				qss << "&since="
+				    << url::encode(since, opts.since);
 
-		if(opts.third_party_instance_id)
-			qss << "&third_party_instance_id="
-			    << url::encode(tpid, opts.third_party_instance_id);
+			if(opts.third_party_instance_id)
+				qss << "&third_party_instance_id="
+				    << url::encode(tpid, opts.third_party_instance_id);
+		}
 
 		json::get<"uri"_>(opts.request) = fmt::sprintf
 		{
 			buf, "/_matrix/federation/v1/publicRooms?limit=%zu%s%s",
 			opts.limit,
-			opts.include_all_networks? "&include_all_networks=true" : "",
+			opts.include_all_networks?
+				"&include_all_networks=true"_sv:
+				string_view{},
 			view(qss, query)
 		};
 
 		consume(buf, size(json::get<"uri"_>(opts.request)));
 	}
 
+	if(likely(!defined(json::get<"content"_>(opts.request))))
+	{
+		json::stack out{buf};
+		json::stack::object top{out};
+		if(likely(json::get<"method"_>(opts.request) == "POST"))
+		{
+			if(opts.limit)
+				json::stack::member
+				{
+					top, "limit", json::value
+					{
+						long(opts.limit)
+					}
+				};
+
+			if(opts.include_all_networks)
+				json::stack::member
+				{
+					top, "include_all_networks", json::value
+					{
+						opts.include_all_networks
+					}
+				};
+
+			if(opts.third_party_instance_id)
+				json::stack::member
+				{
+					top, "third_party_instance_id", json::value
+					{
+						opts.third_party_instance_id
+					}
+				};
+
+			if(opts.search_term)
+			{
+				json::stack::object filter
+				{
+					top, "filter"
+				};
+
+				json::stack::member
+				{
+					filter, "generic_search_term", opts.search_term
+				};
+			}
+		}
+
+		top.~object();
+		json::get<"content"_>(opts.request) = out.completed();
+		consume(buf, size(string_view(json::get<"content"_>(opts.request))));
+	}
+
 	return request
 	{
 		buf, std::move(opts)
diff --git a/modules/console.cc b/modules/console.cc
index c18aa8a43..11721bc46 100644
--- a/modules/console.cc
+++ b/modules/console.cc
@@ -14135,33 +14135,39 @@ console_cmd__fed__public_rooms(opt &out, const string_view &line)
 {
 	const params param{line, " ",
 	{
-		"remote", "limit", "all_networks", "3pid"
+		"remote", "limit", "search_term", "all_networks", "tpid"
 	}};
 
 	const string_view remote
 	{
-		param.at(0)
+		param.at("remote")
 	};
 
 	const auto limit
 	{
-		param.at(1, 32)
+		param.at("limit", 32)
+	};
+
+	const auto search_term
+	{
+		param["search_term"]
 	};
 
 	const auto all_nets
 	{
-		param.at(2, false)
+		param.at("all_networks", false)
 	};
 
 	const auto tpid
 	{
-		param[3]
+		param["tpid"]
 	};
 
 	m::fed::public_rooms::opts opts;
 	opts.limit = limit;
 	opts.third_party_instance_id = tpid;
 	opts.include_all_networks = all_nets;
+	opts.search_term = search_term;
 	const unique_buffer<mutable_buffer> buf
 	{
 		16_KiB
@@ -14185,14 +14191,14 @@ console_cmd__fed__public_rooms(opt &out, const string_view &line)
 		response.get<size_t>("total_room_count_estimate")
 	};
 
-	const auto next_batch
+	const json::string next_batch
 	{
-		unquote(response.get("next_batch"))
+		response["next_batch"]
 	};
 
 	const json::array &rooms
 	{
-		response.get("chunk")
+		response["chunk"]
 	};
 
 	for(const json::object &summary : rooms)