Svix Changelog October 2025

October is here, which means it's time for pumpkin spice everything and another round of exciting updates from the Svix team. Here are the product highlights for October.

Upgraded API documentation with Scalar

We've upgraded our API documentation to Scalar, and we couldn't be happier with the results! The new interface is cleaner, more intuitive, and makes exploring the Svix API even easier. Whether you're integrating Svix for the first time or looking up a specific endpoint, the improved design and user experience will help you find what you need faster.

Check out the new API reference docs.

Email notifications for attempt exhausted

Building on our work with operational emails, we've added support for a new notification type: attempt exhausted. Previously, operational emails were sent when an endpoint was automatically disabled due to repeated failures. Now, you'll also receive notifications when all delivery attempts for a message have been exhausted, giving you better visibility into webhook delivery issues before they escalate.

Let customers update operational email addresses

We've made it easier for both you and your customers to manage operational emails, by letting your customers manage the email address where they receive operational notifications directly from the App Portal.

In addition to empowering your customers to manage their email notification settings, this also makes enabling operational emails much easier, as you no longer need to backfill customer emails (though that's still recommended!).

Because Svix also uses operational emails to email you about your own endpoints, this means you can now manage the wanted email address for your own operational webhooks directly from the operational webhooks section of the dashboard.

Slack connector for operational webhooks

We've integrated our own Svix Connectors to bring you a highly requested feature: Slack notifications for operational webhooks! You can now receive operational webhook notifications directly in Slack instead of having to set up a webhook endpoint (or using operational emails).

We are very happy with how this turned out, and honestly, we should have built this sooner. It's been an often requested feature and Connectors made it extremely easy to do.

Operational webhooks for Svix Ingest

When we launched Svix Ingest, it quickly became a popular way to receive webhooks from third-party services. However, we weren't sending operational webhooks for Ingest integrations, which meant you couldn't get lifecycle events or insights into what was happening with your Ingest setup.

That's now fixed! Operational webhooks are fully supported for Svix Ingest, and they work with both the email notifications and Slack connector mentioned above. Now you have complete visibility into your Ingest integrations, just like with your outgoing webhooks.

Authorization Code Protocol (ACP) connector and libraries

We recently published a blog post about the Agentic Commerce Protocol (ACP), a new standard for agentic payments (which powers ChatGPT Instant Checkout). Webhooks are a core part ACP, so we wanted to make webhooks parts easier. Especially since some of our customers are already adopting ACP.

As part of this, we've released:

• Typed libraries for the required ACP models and webhooks
• A Svix Connector for ACP.

Please let me us know if you're interested in ACP. We would love to hear how people are adopting it, and how we can help.

Closing words

As always, please let us know if you have any feedback on the product, or anything else we can add or build to make your lives easier. A lot of the Svix product came from customer feedback, and we are sure ${next_big_thing} will come from feedback as well. No feedback is too small!

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