Signing Room is a coordination tool for Bitcoin multisignature transactions. Instead of circulating separate partially signed Bitcoin transaction files through email or chat, participants use a shared room to synchronize a PSBT as signatures are added. The homepage describes ephemeral rooms, end-to-end encryption and real-time updates. It also links an open-source repository, a TypeScript SDK and a web-component route for integrating the coordination interface into another application.
The service describes itself as non-custodial: private keys remain on participants' signing devices rather than being uploaded to the room. Its documentation distinguishes tamper-evident transaction artifacts from proof of a person's identity or legal attribution. The public service and self-hosted community edition are presented alongside separate commercial licensing options. Teams should review the deployed edition, license, retention settings and their own transaction-verification process before use. Signing Room coordinates a signing workflow; it does not remove the need to confirm the destination, amount and transaction details on the signing device.
