Google Cloud Advances Multi-Party Signing Service for Institutional Crypto Transactions

Google Cloud has unveiled details of its Multi-party Compute (MPC) service in recently updated documents, presenting this preview product as a solution geared toward institutional Bitcoin custody. The service remains in preview status, meaning it is offered 'as is' with potentially limited support from Google.

The documentation update was released ahead of the Google Cloud MPC Symposium held Wednesday in New York City. This event featured an exclusive introduction of Google’s cutting-edge MPC product and associated research projects, including presentations by representatives from notable financial institutions such as Morgan Stanley, OKX, Citi, and Wells Fargo.

According to release notes, the MPC service has been under development since August 2026. On October 1st, Google expanded its Bitcoin security protocols incorporated within the service to include assessments of transaction amounts, detection of destination address types, and identification of change outputs.

Previously, Alphabet's subsidiary explored related technologies via Confidential Space, a cloud environment crafted to enable secure multi-party computations and data sharing, as described in a blog post published in June.

Cointelegraph reached out to Google Cloud and Rich Widmann, Google's director of digital assets strategy, seeking further information regarding service availability and anticipated launch timelines.

This new service is significant as it offers financial institutions a secure way to manage crypto custody collaboratively, reducing single points of failure and enhancing transaction security through advanced MPC technology.