Built for developers
Robust, clean API that let you define your entire electronic signature workflow programatically, giving you maximum flexibility to fit any use case.
Best-in-class Signer Experience
Make it easy to your signers to sign using our minimal signing interface, designed to make the signers focused to the task at.
No Code? No Problem
Integrate to thousands of apps with our no-code and low-code connectors.
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Power Automate -
ZapierSOON
Electronic Signatures for your AI Agents
Empower autonomous and semi-autonomous agents to send and track documents for signature.
Document Templates
Start with a .docx file, add placeholders, and populate it with dynamic data to generate documents ready for signing.
This Dummy Agreement is made for illustrative purposes only on {{date}}, by and between {{serviceProvider}}, hereinafter referred to as "Service Provider", and {{client}}, hereinafter referred to as "Client".
{{if showAlert}}
This is a non-binding dummy agreement and is intended for demonstration purposes only.
{{endIf}}
WITNESSETH:
WHEREAS, Service Provider and Client wish to engage in a fictional arrangement for the purpose of demonstrating what an agreement might look like;
Signed, Sealed, Delivered
The final file contains the signed documents and an audit log that tracks who accessed the file and what actions they took. It's cryptographically sealed to ensure tamper-proof, verifiable integrity.
Track Every Signature
Our dashboard gives you real-time visibility into high-volume signature flows.
Features to build on
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.
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.
Real-Time Notifications
Receive immediate updates on signing activities via emails and webhooks.
Legally‑binding signatures
Our electronic signatures are globally recognized and legally binding, in most countries offering the same legal standing as traditional ink signatures on paper.
Electronic Signature News ->
Latest global legal news on e-signatures, digital contracts, and compliance. Curated by SignatureAPI.
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
Several international regulations recognize the legality of electronic signatures, ensuring their validity and enforceability in many jurisdictions around the globe.
“We needed a scalable solution for handling digital signatures in our SaaS platform, and SignatureAPI delivered. Their support is responsive, the documentation is solid, and integration was smooth. It’s been a great tool for both small features and larger workflows.”
“Lien waivers used to be the choke‑point in our disbursement process—we were always chasing signatures and re‑entering data. SignatureAPI dropped straight into our stack and now waivers go out, get signed, and come back automatically in minutes. It’s shaved hours off every draw and keeps our projects moving.”
“SignatureAPI took the hassle out of sending insurance claims for signature. It’s fast, simple, and backed by solid support. It just works.”
