Optimize launch images from Slack with Kraken.io
Share a public image URL in your launch channel and let Notis ask Kraken.io to optimize it, so launch prep has one less manual step.
Trigger
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Action
Optimize Image by URL
Tool to optimize an image from a public url. use when you need to compress, resize, or convert an externally hosted image. returns result immediately if 'wait' is true.
Why this helps
Launch assets arrive amid planning messages, making it easy to forget the final image optimization step.
- Reduce image file sizes during launch preparation.
- Keep asset work moving from the conversation where it was requested.
- Get the optimized result through the Kraken.io run response.
Setup
Build it in a few focused steps.
- 1Connect Slack and Kraken.io to Notis once through the portal.
- 2Create an automation in the portal or ask Notis conversationally for this workflow.
- 3Use one plain-language instruction: optimize public image URLs shared in the launch channel with Kraken.io and return the result.
- 4Choose the Slack channel message trigger and a channel for run reports.
- 5Test by sharing one public launch image URL in Slack.
Questions about this workflow
Does this process images attached as Slack files?
This workflow is for public image URLs that Kraken.io can access. A Slack attachment is not necessarily a public URL.
Can I control the optimization request?
Describe the desired outcome in the automation prompt, such as reducing file size while preserving the image format.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Kraken io. A trigger fires from one place; an action lands in another.
Slack triggers
Kraken io actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Check Kraken.io User Status
Tool to retrieve current kraken.io account status and quota usage. use when you need to verify plan limits and remaining quota before processing images.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Optimize Image by URL
Tool to optimize an image from a public url. use when you need to compress, resize, or convert an externally hosted image. returns result immediately if 'wait' is true.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Preserve Image Metadata
Tool to preserve exif and other metadata during kraken.io image optimization. use when you need to maintain metadata while compressing images.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Sandbox Image Upload
Tool to upload and optimize images in sandbox mode. use when you want to test the kraken.io api without consuming credits.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Connect any two apps with Notis in the middle.
Slack and Kraken io, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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