Welcome to Proof!

Proof is an intelligent platform that combines auditable verification with cryptographic evidence to securely execute legally binding agreements. Proof was created by Notarize℠, the world’s leading online notarization platform that connects you to a notary from anywhere, in less than a second. In these docs, you’ll find everything you need to start building your integration for identity verification, eSign, and notarization.

Proof supports two main APIs today: the Business API and the Real Estate API. The Real Estate API is reserved solely for real estate use cases (mortgage, refinance, title, HELOC, etc.). Proof also provides a no-code solution called EasyLink.

Ready to get started? Get your team setup with a Proof account today, or contact customer success if you have any questions.

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The Proof platform is centered around transactions. At a high level, the Proof APIs can automate transaction creation, transaction access, and transaction retrieval.

You can use our APIs to create transactions instantly from your application, to eliminate manual work for your teams.

The signer will then receive an email invitation to sign their documents, prove their identity, or meet with a notary. Alternatively, you can retrieve a transaction access link and provide it to your signer in a convenient, secure place. You can even redirect your signers back to your website after they've finished signing.

Once the signing is complete, you can use the API to retrieve completed documents, as well as other important information, with the assistance of our webhooks.

These docs cover everything you can customize in the Proof experience, including transactions, the signing experience, documents, and more. Additionally, you can learn more about configuring your Proof organization to meet your various enterprise needs.

Additionally, you can find the public Proof Postman Workspace here.


For general API questions, or questions about your account/contract, contact [email protected] or your dedicated Customer Success Manager.

Please be sure to subscribe to our status alerts to get notified of any outages or maintenance/downtime periods.

Not a developer? Check out our Knowledge Base to learn more about the product from an end user's perspective!