ChirpStack Network Server is an open-source LoRaWAN network-server, part of ChirpStack. It is responsible for handling (and de-duplication) of uplink data received by the gateway(s) and the scheduling of downlink data transmissions.
With the release of ChirpStack v4, the source-code has been migrated to https://github.com/chirpstack/chirpstack/. Please refer to the v3 to v4 migration guide for information on how to migrate your ChirpStack v3 instance.
ChirpStack Network Server is distributed under the MIT license. See also LICENSE.