NPLN provides modern game services through gRPC. The decompiled protobuf files can be found here. See also NPLN Resources
The NPLN server is at https://<tenant id>.lp1.t.npln.srv.nintendo.net. The tenant id is always t-<server id>-lp1.
Metadata
The following metadata fields may be included in requests:
| Field | Description |
|---|---|
authorization | bearer <access token> |
npln-tenant-id | Tenant id (like t-e1c218b5-lp1) |
uid | User id (like u-qtb6z4jkvrndteijghom) |
The npln-tenant-id field is always required. The authorization and uid fields are only required if the request requires authorization.
If the metadata is invalid, the server returns status code 12 (Unimplemented) on production servers, or 14 (Unavailable) on development servers.
The official library sets the user agent to grpc-c++/1.31.1 grpc-c/11.0.0 (nintendo; chttp2).
List of services
Services are never modified in a backward incompatible way, but new methods and services may be added in the future.
nn.npln.auth.v1.Authnn.npln.friends.v1.Friendsnn.npln.friends.v1.PresenceServicenn.npln.gamesync.v1.Gamesyncnn.npln.hydro.v1.Datastorenn.npln.leaderboard.v1.LeaderboardServicenn.npln.maintenance.v1.MaintenanceScheduleServicenn.npln.matchmaking.v1.GameSessionServicenn.npln.matchmaking.v1.Matchmakernn.npln.messaging.v1.Messagingnn.npln.ugcstore.v1.Screeningnn.npln.ugcstore.v1.Ugcstore
Splatoon 3 also implements some custom services:
nn.npln.toyohr.v1.Canolann.npln.toyohr.v1.CloudSavenn.npln.toyohr.v1.CoopScenarionn.npln.toyohr.v1.FestServicenn.npln.toyohr.v1.GameRecordnn.npln.toyohr.v1.LobbyMessagingnn.npln.toyohr.v1.Lockernn.npln.toyohr.v1.Replaynn.npln.toyohr.v1.Schedulenn.npln.toyohr.v1.UserScreening
Pokemon Scarlet and Violet implement custom services as well:
nn.npln.timber.v1.CompetitionServicenn.npln.timber.v1.TradeBoxService
List of games
| Game | Tenant ID |
|---|---|
| Monster Hunter Rise | e1c218b5 |
| Monster Hunter Rise Demo | f124d2cb |
| Monster Hunter Rise: Sunbreak Demo | bc33b7d4 |
| Pokemon Legends: Arceus | e047112f |
| Pokemon Scarlet & Violet | 50e39f8f |
| Splatoon 3 | dce9377b |
| Splatoon 3: Splatfest World Premiere | 156eef4e |
| Super Mario Bros. Wonder | ba973ec6 |