Electronic Signature API
Send documents for signing, track progress, and get work done faster with our electronic signature platform built for high volume and ease of integration.

Integrate with the tools you love
- API
Integrate electronic signatures into your applications and platforms easily with our simple and powerful API.
- Power Automate
Build electronic signatures into your Power Automate flows, leveraging Microsoft's powerful no-code platform.
More integrations coming soon
Embedded Signing
Enable your users to sign documents directly within your web or mobile app by embedding the signing interface.
- Seamless User Experience.
- Streamlined, intuitive UI for in-app document signing, designed to keep users focused on the task.
- Easy Implementation.
- Add electronic signing to your app quickly with our developer-friendly, well-documented API.
- No Dependencies.
- Integrate seamlessly using standard elements, without requiring external libraries or dependencies, for a hassle-free setup.

Legally-Binding Electronic Signatures
Our electronic signatures are globally recognized and legally binding, offering the same legal standing as traditional ink signatures on paper.
- ESIGN Act.
- The Electronic Signatures in Global and National Commerce (ESIGN) Act, passed in 2000, legally recognizes electronic signatures and records in US commerce.
- UETA.
- The Uniform Electronic Transactions Act (UETA) aims to provide uniformity and consistency across states in the US by standardizing the legal treatment of electronic records and signatures
- eIDAS.
- The Electronic Identification and Trust Services (eIDAS) Regulation, effective since 2016, standardizes and legally recognizes electronic signatures across the European Union. Our signatures are classified as eIDAS SES.
- International Electronic Signature Laws.
- Several international regulations recognize the legality of electronic signatures, ensuring their validity and enforceability in many jurisdictions around the globe.
Signed and all signatures are valid.

Features to build on
- Embedded Signing
- Integrate electronic signatures into your app or platform, creating a seamless signing experience for your users.
- Multiple Recipients
- Send to up to 10 signers in a single electronic signature transaction.
- Parallel or Sequential Signing
- Send to all recipients at once or one by one in your preferred order.
- Bundle Documents
- Combine up to 10 documents into a single envelope for efficient signing.
- Document Templates
- Create documents programmatically from templates and dynamic data.
- Languages & Localization
- Customize languages, date-time formats, and time zones in the signing interface.
- Accountless Signing
- Recipients can sign documents without needing to create or log into an account.
- Audit Log
- Get an audit log with proof of document access, review, and signature.
- Tamper-Proofing
- Secure documents with irrefutable, verified proof of integrity post-signature.
- Track Envelopes
- Monitor the signing progress through a straightforward, user-friendly dashboard.
- Real-Time Notifications
- Receive immediate updates on signing activities via emails and webhooks.
- Unlimited Workflows
- Integrate the Signature API seamlessly across an unlimited number of workflows.
- Direct Support
- Get precise, actionable answers from the engineers who built the platform.