Integrate Electronic Signatures
The modern way to collect e-signatures in your apps and workflows, at any scale.
Integrate electronic signatures into my app or platform
Automate sending and tracking documents for signature
Best in class
experience
Reliable, intuitive API that let you define your entire electronic signature workflow programatically, giving you maximum flexibility to fit any use case.
POST
https://api.signatureapi.com/v1/envelopes
Content-Type: application/json
X-API-Key: test_key_ae18de8…
{
"title": "NDA Agreement",
"topics": [ "human_resources" ],
"routing": "sequential",
"sender": {
"name": "John Doe",
"email": "john@example.com"
},
"documents": [
{
"url": "https://bucket.s3.com/123456.docx",
"format": "docx",
"data": {
"unit": "100B",
"tenant": "Jane Smith"
}
}
],
"recipients": [
{
"type": "signer",
"key": "tenant",
"name": "John Doe",
"email": "john@example.com"
},
{
"type": "signer",
"key": "landlord",
"name": "Mr Landlorf",
"email": "land@example.com"
}
]
}
Document Templates
Your Branding
Track Every Signature
We provide a full-featured dashboard for you and your team to track signing activity, designed to handle high volumes of transactions.
Features to build on
Multiple recipients
Parallel or Sequential Signing
Bundle Documents
Languages & Localization
Accountless Signing
Real-Time Notifications
Legally‑binding signatures worldwide
Our electronic signatures are globally recognized and legally binding, in most countries 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
Several international regulations recognize the legality of electronic signatures, ensuring their validity and enforceability in many jurisdictions around the globe.
An e-signature API that just works
Scott Terrell
Founder & CEO, Solvrix
Cameron Strong
Co-Founder, Findlan