For software platforms and businesses automating document signing
Add document signing to your application. Pay only for what you send.
Automate customer, contractor, and supplier agreements with the eSignBase REST API. Built for changing document volumes: no monthly subscription, no per-seat fees, and credits that never expire.
Explore the APICreate a sandbox accountBuilt for signing inside your existing workflow
Connect your application
Use OAuth2 and the REST API to send documents from your platform, CRM, or internal tools. Python and Node.js SDKs are available.
Reuse document templates
Prepare reusable templates in the visual editor, then populate them through the API for each customer or contractor.
Get integration support
Get help from a person when setting up your signing workflow or working through integration questions.
Keep costs aligned with usage
Buy document credits when you need them. No monthly subscription, per-seat fees, or expiry date.
React to completed signatures
Receive a webhook when signing is complete so your application can continue onboarding or update a record.
Keep an audit trail
Keep completed documents and their signing history together, with EU-based infrastructure.
Automate the signing. Keep your team in control.
Onboard contractors, collect customer agreements, or manage supplier paperwork from the systems you already use. Your team can also use the web dashboard to inspect document status, manage templates, and handle workflows with one or more signers.
See the integration guide
A free tool for small businesses
Need to prepare a quotation?
Create a professional PDF quote with your company details, services, and prices. No account or API integration needed. Optional electronic signing is available with paid credits.
- ✓Free PDF download
- ✓No account required
- Works on phone, tablet, and computer
Built for European Digital Sovereignty — Recognized Worldwide
- EU-based company under EU jurisdiction✔︎
- EU-based infrastructure and data residency✔︎
- GDPR-aligned data processing by default✔︎
- Legally enforceable signatures under EU law (eIDAS AES)✔︎
International Legal Framework Compatibility
European Union
United States
Switzerland
Legal validity depends on correct usage and applicable local regulations. Please consult legal counsel for specific jurisdiction requirements.
Try your signing workflow in the sandbox
Create an account to test the API before sending production documents. Start with a template, send a test signing request, and connect completion events to your application.
Create a sandbox account