About SignNow

SignNow is a secure eSignature solution allowing organizations to obtain legally binding signatures from customers, partners, and employees in seconds, reducing document turnaround up to 90%. SignNow offers a range of deployment options:

  • Cloud
  • Virtual machine (VM) appliance

This paperless approach to document control allows you to electronically manage document workflow and securely store critical documents, eliminating scanners, faxes, printers, and document storage.


Three-Legged Oauth

Ruby apps can use the omniauth-sign-now library to simplify this process.

1. First Step

Redirect user to SignNow auth page; provide a redirect uri for the user to return to once they have authorized your application at




2. Second Step

After the user has authorized your application at, they will be redirected to the redirect uri that you provided; a code query parameter will be provided.


3. Third Step

Use the provided code parameter to get an access token from SignNow.

curl --header "Authorization: Basic {BASIC TOKEN}" --data 'grant_type=authorization_code&code={CODE}'

Updated about a year ago

Three-Legged Oauth

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