API
Create and prepare supported notarization or eSign requests, check status, and retrieve available completed files through an authorized integration.
Explore the APIWorkflows & AI
Make notarization part of your workflow.
Connect Online Notary Center to the systems your business already uses. Build with our API, respond to completion webhooks, and give AI coding assistants clear integration guidance.
Considering Zapier? Talk with ONC to confirm access and the connection that fits your team.
Four ways to connect.
Choose the tools that fit your team and your application.
Webhooks
Receive a supported session-completion notification. Use the session reference to request details and available files through the API.
Review completion webhooksZapier
Discuss a Zapier-based workflow with ONC. Confirm app access and the supported connection before building your Zap.
Access confirmation required.
Discuss Zapier accessAI agent guides
Give your coding assistant ONC documentation, credential-handling guidance, and clear boundaries for building a customer integration.
Explore the starter guideWorkflow ideas
What would you like to connect?
These are integration patterns your team can build, rather than prebuilt connectors.
Keep the customer request connected to the customer record.
Your integration can connect a customer’s notarization request to ONC, then bring supported completion information back to your CRM.
- Prepare the request
Use the documented API to create and prepare the supported ONC session. Keep its reference with your customer record.
- Connect the customer
Provide the supported session handoff. The signer completes the required identity checks and live notary session.
- Update your CRM
Use the completion notification or a status check, then retrieve available files through the authorized API.
Give customers a clear next step from your portal.
Build a handoff from your customer portal into a supported ONC session. Your application can reflect the status returned by the API.
- Start in your portal
Your server prepares the supported request using the documented API and the customer’s authorized information.
- Hand off to ONC
Present the supported session link so the customer can continue with ONC’s required steps.
- Reflect completion
Check the session through the API and update your portal when the supported completion information is available.
Let completion start your team’s next step.
Use a session-completion notification to start a configured internal follow-up. Your integration retrieves the information your team is authorized to use.
- Connect the notification
Configure an HTTPS receiver using the documented completion-webhook subscription.
- Check the record
Use the session reference to request supported details and available files through the API.
- Route the next task
Your integration can update an internal work queue or notify the appropriate team through your own tools.
Webhook notifications identify a completed session; they do not deliver the document itself. Your integration must retrieve authorized files through the API. See the automation reference for the supported contract.
Build with AI assistance
Give your AI assistant the right context.
Start with ONC-specific guidance instead of asking your coding assistant to guess how the integration works.
Use the starter guide in your own integration project. It points to the API reference and helps your assistant check capabilities, keep credentials on the server, and recognize actions that need authorization.
AI assistance supports development. It does not perform notarizations, replace the notary, or bypass identity verification and required human participation.
Download AGENTS.mdA public starter for a customer’s integration project. Review and adapt it to your project’s requirements.
Explore the workflows: Enterprise · Remote online notarization · In-person electronic notarization · eSign.
Let’s connect your workflow.
Explore the technical documentation or discuss an enterprise integration.