Integrate Digital Signatures and Idents
via API
The API for secure and scalable electronic signatures and identification processes –
seamlessly integrated into your IT systems, legally compliant worldwide.


Embed signature workflows in existing IT systems and applications as a widget
sproof - Electronic Signature Widget
- Seamless integration of electronic signatures via API: Integrate the all-in-one eSignature solution as a button, widget or directly into your DMS and enable secure, legally compliant signing with QES or FES without media discontinuity.
- In Corporate Branding: Users sign in familiar branding without leaving the familiar software application.
- International & legally valid: eIDAS-compliant, advanced and qualified electronic signatures directly integrated via API.
Your white label solution for digital identification processes
sproof - Ident for Your Identity Management Processes
- White Label Integration: Integrate identification as a button, widget or directly into your DMS – and enable secure, legally compliant identification without media discontinuity.
- Flexible identification methods: Users sign in familiar branding without leaving their familiar surroundings.
- Secure transmission of qualified attributes: eIDAS-compliant, advanced and qualified e-signatures directly integrated via API.


User-friendly and fast signature processes for maximum response rates
sproof - Fastlane for Faster B2C Signature Processes
- Web forms incl. electronic signature: Place links or QR codes in your media to offer digital signatures for concluding contracts in addition to the classic options.
- Barrier-free user experience in your branding. A very easy-to-use and barrier-free user interface guarantees a very high response rate and improves the customer experience.
- Increased Safety & Quality: We guarantee data protection without compromise. Your customers sign 100% legally valid, eIDAS and FDA compliant.

Request a development license via API token and try it for free
sproof for your development environment
- Embed Signatures and Identity Verification as a Widget: Integrate the all-in-one e-signature solution as a button, widget, or directly into your DMS, and enable secure, legally compliant signing and identification without any disruption to the workflow.
- In corporate branding: Users sign in and identify themselves using familiar branding without leaving their usual environment.
- International & legally valid: eIDAS-compliant, advanced, and qualified e-signatures, as well as identity verification, are directly integrated via API.
Signing & Identification in Accordance with eIDAS 1.0 & 2.0
A comprehensive solution for end-to-end trust processes for companies with the highest standards.
REST API & SSO
Integrated into the IT environment in the shortest possible time. Seamlessly integrated into the process landscape.
Branding & Domain Support
Fully customizable to match your brand identity.
Price transparency & scalability
100% eIDAS, ZertEs, FDA, DORA & FMA compliant – recognized throughout Europe.
GDPR, FDA & eIDAS compliant
100% European data management and compliance with all signature laws & standards.
All-round support & contact person
Comprehensive integration support & personal contact.










