01
Create a Slack incoming webhook
In your Slack workspace, create an incoming webhook for the channel where you want Flux notifications. Copy the webhook URL - this is where your automation will POST messages.
// Slack + Flux
Board updates in Slack.
Post Flux card notifications to Slack channels. Know when cards move, who is assigned, and what shipped - without opening the board. Slack webhooks plus the Flux API.
02
Set up an automation layer
Use Zapier, Make, n8n, or a custom script to bridge Flux and Slack. The automation polls the Flux API for board changes or listens to Flux SSE events, then formats and POSTs messages to your Slack webhook.
03
Format card notifications
Build message payloads using Slack's Block Kit format. Include the card title, the column it moved to, the assignee, and a link back to the Flux board. Rich formatting helps your team scan updates quickly.
04
Filter notifications by event type
Not every card change needs a Slack message. Filter your automation to notify on specific events: cards moving to Done, high-priority cards created, or cards overdue. Reduce noise, increase signal.
01 Is there a native Flux Slack app?
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Flux does not have a native Slack app. You connect the two systems using Slack incoming webhooks and an automation layer (Zapier, Make, n8n, or a custom script) that reads from the Flux API and posts to Slack. This gives you full control over message formatting and event filtering.
02 Can I create Flux cards from Slack?
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Yes, with a custom Slack bot or slash command. Build a small service that receives Slack slash command payloads, extracts the card title from the message text, and POSTs to the Flux /api/cards endpoint. This requires hosting a webhook receiver.
03 How do I get real-time notifications?
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Flux supports SSE (Server-Sent Events) on a per-board basis. Connect an SSE client to /api/boards/{boardId}/events using your Flux API key. When events arrive, forward them to your Slack webhook. This gives near-instant notifications without polling.
// Stay in the loop
Cards to channels.
Flux REST API + Slack webhooks. Board notifications where your team already works.