Execute a remote online notarized real estate closing transaction using the Proof (formerly Notarize) Real Estate API
domain: dev.proof.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Confirm your organization has an active lender or title account with Proof, since API access requires an existing business relationship
Create a transaction via the Real Estate API and upload the closing document package, using XML seed files or MISMO 1.02 SMARTDocs
Set document-level parameters such as notarization_required or witness_required for each document in the package
Register a webhook to monitor transaction state changes such as email opened, signing started, and signing completed
Retrieve the completed, notarized documents from the API once the transaction reaches a completed state
Known gotchas
The API only accepts specific document formats such as XML seed files or MISMO 1.02 SMARTDocs; arbitrary PDFs without seed metadata won't map correctly to signature/notary fields
Access requires a pre-existing lender or title account with Proof; there is no anonymous developer sandbox for the real estate closing flow
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