Build with Sendspin

Sendspin is an open alternative to Apple AirPlay and Google Cast, with extra control and visualization features to create a truly immersive music experience for your customers.

Why build on Sendspin

Why current protocols are failing manufacturers, the strategic advantages for your brand, and how it works.

Read the pitch

Implementation guide

The handbook for building a client or a server: concepts, worked use cases, step-by-step chapters, pairing UX, ESPHome, testing and certification.

Read the guide

SDKs & libraries

Official SDKs for C++ and Python, from microcontrollers to servers, plus a reference CLI player.

Browse the SDKs

Protocol specification

The protocol itself, message by message: the handshake, stream negotiation, codecs, and the timing rules that keep rooms in sync.

Read the spec

Questions? Join the #sendspin-protocol channel on the Music Assistant Discord. Want to help build Sendspin? The specification, the SDKs and the conformance suite are developed in the open; the contributing chapter explains how the project works and how to take part.