Cryptomathic Managed Signing Services is a Qualified Electronic Signature (QES) as-a-service offering designed to help eSignature platforms deliver eIDAS-compliant signing without requiring them to become a Qualified Trust Service Provider (QTSP) themselves. The service exposes an API that integrates with a customer's existing signature portal and systems. It provides access to a remote Qualified Signature Creation Device (QSCD) for private key generation, storage, and usage, in accordance with eIDAS requirements. Key operational capabilities include: - Certificate issuance and revocation via a managed interface - Remote signing operations using user authentication data to activate keys on the QSCD - Identity verification support, covering in-person, remote session, and pre-existing electronic identification approaches - Audit guidance and support to reduce the regulatory burden on the integrating organization The integrating company retains full ownership of the customer relationship, handles identity proofing and verification, manages certificate lifecycle tracking, and presents terms and conditions to end users. Cryptomathic, acting as the QTSP, handles the back-end qualified trust infrastructure and carries the primary audit obligations under eIDAS. The service is designed to require minimal IT infrastructure on the customer side, with integration achieved through standard API calls. Branding and user experience remain fully under the control of the integrating company, with no redirects to Cryptomathic-owned interfaces.