Are your tech teams ready to integrate our fast and secure eSign APIs?

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Easy to integrate eSign APIs
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Free developer account
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99.99% guaranteed uptime
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No credit card required
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Flexible pricing
Signeasy API portal

Make contract signing easy with Signeasy eSignature API

Fast-track eSigning inside your applications with Signeasy’s secure and reliable eSignature API.
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75% of our customers have gone live in less than 72 hours

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Signeasy Customer - Phlo
Signeasy Customer - Teach Now
AngelListRappiSigneasy Customer - Azimut Benetti group
Signeasy Customer - Brigade group

Over 48,000 companies trust Signeasy

Signeasy Customer - Pan American Silver
Angellist
[24]7.ai
Albea Cosmetics
IcelandAir

Easy to build. Easy to test. Easy to go-live eSign API

Signeasy’s flexible and secure APIs help developers quickly build custom workflows with eSignature capabilities.

Why businesses choose Signeasy eSignature API

Paper plane

Hassle-free implementation

Simple REST APIs that are easy to set up and integrate out of the box.
Customer Support

Reliable customer support

High availability and reliability with a 99.9% uptime guarantee.
rocketship

Instant go-live

Well-documented APIs and reliable support available for troubleshooting.

Flexible eSign API pricing to help you scale

Build eSignature workflows that are easily scalable with Signeasy’s transparent pricing plans.

Starter

For developers to quickly build and explore the API in a free sandbox environment.
$12
$0
free sandbox
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    40 signature requests
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    Sandbox with all features
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    Onboarding support

Intermediate

For growing businesses with moderate signature requests.
$12
$
125
/ month
$1,499 billed yearly
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    Merge fields
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    Embedded signing
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    Embedded sending
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    Webhooks

Advanced

For enterprises that need advanced features with high signature requests.
$24
$
250
/ month
$2,999 billed yearly
All in Intermediate, and:
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    Embedded templates
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    Stamps
    NEW
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    Advanced authentication
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    Priority support

Loved by innovative developers and startups

Shelbie Goodnow | General Manager
Moreland University

“We’ve consistently received positive feedback on Signeasy. Its responsiveness, ease of setup, and seamless API integration have been major advantages. Our core user base finds it very user-friendly.”


Shelbie Goodnow | General Manager

Read Case Study
Shakeel Ahmad - TruePill
Phlo Pharmacy

"Typically, doctors write physical prescriptions in pen and ink and they fax that through to the pharmacy. With Signeasy, it’s all electronic: it takes seconds to sign. It’s not cutting out any due diligence, but it’s reducing the time significantly."


Shakil Ahmed | Managing Director

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Sharat Khurana - Zenequity
Zenequity

"Signeasy offered easy embedded signing capabilities that fit perfectly within Zenequity’s platform. Signeasy API eliminates the need for custom coding and has powerful capabilities that can help businesses streamline their document workflows. We cherish our partnership with Signeasy, as the team truly listens and responds to our needs consistently."


Sharat Khurana | Founder

Read Case Study
Sanjay Jha - LetsVenture
LetsVenture

“The customer experience has become two to three times better with the Signeasy API integration. We can offer all our users the ability to securely sign their documents with a signature that’s just as legally binding as wet ink. The process is smooth, seamless, and exceptionally convenient for startups and investors alike.”


Sanjay Jha | Co-founder, CTO, & CPO

Frequently asked questions

What is an eSignature API?
An eSignature API, also known as an Electronic Signature API, is a software solution that enables developers to integrate electronic signature capabilities into their applications and websites. This allows users to electronically sign and send documents for signatures on a single app, thus eliminating the need for physical signatures.

The eSign APIs come equipped with functionalities such as document creation, authentication, tracking, and compliance, resulting in enhanced efficiency in document workflows and reduced paper usage, particularly beneficial for businesses.
How do eSignature APIs work?
Electronic Signature APIs enable developers to seamlessly incorporate electronic signature capabilities into their applications.

Users can either upload existing documents or create new ones, designate signing locations, authenticate their identity, and trigger the signing process.

The API then creates a distinct digital signature, securely attaches it to the document, and encrypts the file for enhanced security. Users receive notifications upon successful signing, and certain eSign API solutions provide options for document storage and the creation of audit trails as well.

These APIs ensure compliance with legal standards, guaranteeing the validity of electronic signatures.
What are the benefits of using an eSignature API?
Using an eSignature API, or Electronic Signature API, provides many advantages. It enhances efficiency by simplifying the signing process, enabling quick document turnaround.

Additionally, it offers accessibility for remote signing on various devices, reducing the reliance on physical paper documents, and contributing to cost savings and environmental sustainability.

The eSign API ensures robust security through encryption, authentication, and audit trails, making electronic signatures legally binding and compliant with regulations in many jurisdictions.

It seamlessly integrates with existing systems, aids in document management, and scales to suit businesses of all sizes, fostering collaborative signing among multiple parties.
How can I integrate an eSignature API solution into my application?
Signeasy offers easy-to-integrate eSignature APIs with well-defined documentation for developers to quickly build, test, and go-live.

To integrate an eSign API into your application, follow the below steps
1. Select a suitable provider and obtain API credentials.
2. Thoroughly review the API documentation for guidance on endpoints, authentication, and usage.
3. Implement authentication to secure access and design the user interface for document preparation and signing.
4. Integrate API endpoints to enable actions like document creation, signing, and management through HTTP requests.
5. Develop error-handling mechanisms and conduct extensive testing to ensure proper functionality.
6. Adhere to legal and security standards, offer user training if necessary, and deploy your application once testing is successful.
7. Continuously monitor, maintain, and optimize your integration as your application evolves.
How can I try out the Signeasy's eSign API solution?
Please contact us and our solution expert will reach out to you within 24–48 business hours, with the details on how to provision a sandbox account for yourself to try out our eSignature APIs.
How long are the credits valid for?
The credits are valid for the plan's subscription period (one year).
What is an envelope, and how are documents and envelopes related?
At Signeasy, an envelope is a wrapper for documents that you send to a recipient to sign. An envelope can have one document or many documents, and one signer or many signers. Envelopes have statuses (i.e. sent, completed, voided) and also contain information about the sender and timestamps that indicate the progress of the delivery procedure.

Envelopes help you better manage the documents that are usually sent together and need to be signed together to complete a deal, an onboarding process, contract, etc.

Regardless of how many documents, fields, and signers a given envelope contains, it still counts as only one.
Does Signeasy API offer an extra authentication layer at the time of signing documents?
Yes. Signeasy's eSignature APIs support OTP authentication via SMS.
What is the maximum number of signers supported per signature request?
The maximum number of signers supported per signature request is 45 recipients.
What is the maximum file size allowed per document?
40 MB is the maximum file size allowed per document.
Does Signeasy remind signers about signature requests sent via eSign API?
Yes. We remind the signers of a pending signature request for up to 7 days.
How many apps can I create in the developer portal?
You can create a maximum of 3 apps in the Free plan. In the Paid Plans (Starter, Intermediate and Advanced) you can create a maximum of 10 apps. If you need to increase the number of applications please reach out to our electronic signature API support team.
What happens if my plan expires?
If the eSign API plan expires your endpoint access will be restricted and you will not be able to send any signature requests. There will be reminder notifications for plan expiry and credits utilized. Please ensure renewal of the plan ahead of time to ensure continued usage.