API integration with CertySign: agile, easy to use
Manage certified processes from your own systems
Our REST API allows you to easily connect your business systems with CertySign to take full advantage of our platform:
- Send certified postal and digital communications.
- Manages electronic signature processes.
- Trace and audit every interaction.
- Certifies and safeguards digital evidence.
All of this is backed by a qualified and trusted service provider, which guarantees the legal validity, security and privacy of the data.

Everything you need to integrate CertySign: Integrator Portal
In this space your technical team will find all the necessary information, in document and video format, to connect with CertySign:
- Complete API documentation (insertion, query, authentication…).
- Structure and examples of callbacks.
- Manuals for configuration and customization of corporate appearance and signature tags.
- Examples of processes (signature, consents, certified delivery…).
- Access to pre-production and production environments.

CertySign integration API advantages

Easy and fast to use
Access all documentation (examples, guides and real use cases) to accelerate development. Contact us to access or request the help of an expert consultant.

Safe and reliable
Our API incorporates strong authentication mechanisms and guarantees security in all transactions, protecting your customers’ information at all times.

Flexible and adaptable
Tailor processes to your needs: from sending certified communications to complete electronic signature flows, fully integrated into your environment.
Regulatory compliance and trust in every interaction
Legal guarantee always up to date
Compliance with eIDAS regulations for digital trust services, ensuring the legal validity of all transactions.
Data protection
Compliance with RGPD and maximum responsibility in the treatment of personal data, guaranteeing privacy and security in each process.
