Logo is an API Platform for signing documents. Use to integrate e-signing into your web or mobile application in minutes instead of months.

Get Started is simple to use. Create a signable document with just one API call.

curl responds with a share_url. Visit that url and sign your document.

That's it!

Help & Support

If you need help, please get in touch with me at


It is nice to have helper libraries in the language of your choice. We've built the following for you.

Architecture is completely open sourced. It takes a service oriented approach to it's architecture. Much of it is actually a "webhook driven architecture".

Supporting External Services