Description
MPC Hot Signer is a containerized transaction signing service for enterprise operators integrating with the Bron platform. Deployed via Docker or Kubernetes, it connects to the Bron API using dedicated API keys and stores encrypted MPC shards in a PostgreSQL database. Supports AWS KMS, Google Cloud KMS, Azure Key Vault, and local master password encryption for shard protection. Includes built-in Prometheus metrics for operational monitoring. Functions as an automated alternative to the Bron desktop application for non-interactive transaction signing workflows.