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OnTask API Developer Resource Center

We have the tools you need to fill the gaps in your application in minutes and get to market faster. Get started with seamless eSignature APIs from OnTask.

Getting Started Made Easy

Jump right in! Start using our API to create a seamless user experience to collect eSignatures within your application.

API Documentation

Our documentation guides you through the development process and offers code samples to help you get started quickly.

Get OnTask API Sample Code

Try OnTask API in your favorite coding language.

Upload Document
Send Document For Signing
Get Document Status
Download Signed Documents
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Sample code view

Postman Collection

Postman allows you to explore and test the OnTask API using a collection of calls we’ve selected.

Fast & Easy eSignature API Integration

Simple Implementation

Legally binding and secure eSignatures complete with audit trails, and automated reminders for documents waiting to be signed.

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Flexible & Scalable

Integrating OnTask with your apps means managing documents has never been easier because they’re already in the systems you use most.

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Secure

Keep apps communicating and working behind the scenes to ensure nothing slips. OnTask comes with automated routing and makes documents more accessible for your teams.

API FAQs

Browse some of the most common questions we get about OnTask API and answers.

Frequently Asked Questions

What compliances does the OnTask eSign API meet?

OnTask API is HIPAA, FERPA, SOC 2, and CCPA compliant, and features a number of security features to protect data and combat downtime. Read about OnTask’s security and compliance.

What use cases does the API support?

OnTask API can be used for a wide variety of use cases, including but not limited to leasing packets, employee and client onboarding, proposals, quotes, questionnaires, and any other process using forms and documents.

What capabilities does the API have?

OnTask API’s abilities include eSignature requests and collection on documents, document packet creation, automated document generation, document lifecycle management and storage, data collection through forms, automatic launching of workflows, as well as importing and exporting documents and data from other systems.

How long does it take to launch the API?

Our eSignature API comes with extensive documentation that allows developers to implement and launch within a matter of minutes. Support is available during and after implementation, as well as

eSignature vs. digital signature API, what’s the difference?

The purpose of an eSignature is to verify a document, while digital signatures also work to secure documents. OnTask utilizes both for a complete signature experience. Read more on the difference between eSignature and digital signature APIs.

What is an eSignature API?

An eSignature (electronic signature or digital signature) application programming interface (API) is a Representational State Transfer (REST) web service that allows subscribers to securely request signatures online, obtain status updates, and download the completed documents.
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