Skip to content
Per-pair page

Connect Slack to Mastodon in two minutes.

Real-time triggers from Slack, ready-made actions in Mastodon. Filter, transform, and route without writing a line of code.

Trigger app
Slack as the trigger

Workflows fire when something happens in Slack.

See all 13 triggers →
Action app
Mastodon as the action

Workflows do something in Mastodon, instantly.

Both directions

Pick the way that fits your stack.

Pair pages are mirrored. Each direction gets its own dedicated page.

SlackMastodon

When something happens in Slack, do it in Mastodon.

13 Slack triggers wired to 5 Mastodon actions. Most-used pairing: App Home OpenedFollow Mastodon Account.

MastodonSlack

Or fire it the other way around.

0 Mastodon triggers wired to 45 Slack actions downstream.

  • Use any trigger in the catalog as the upstream.
See MastodonSlack
Popular pairings

Common Slack → Mastodon workflows.

Pick a pairing to set it up in two minutes. Each one is a fully editable recipe.

Showing 9 of 65 combinations
When app home opened in Slack, follow mastodon account in Mastodon.

Fires when a user opens your Slack app's Home tab or DM. Useful for refreshing the Home view, lazy-loading user-specific data, or tracking app engagement.

When app home opened in Slack, get mastodon home timeline in Mastodon.

Fires when a user opens your Slack app's Home tab or DM. Useful for refreshing the Home view, lazy-loading user-specific data, or tracking app engagement.

When app home opened in Slack, get my mastodon account in Mastodon.

Fires when a user opens your Slack app's Home tab or DM. Useful for refreshing the Home view, lazy-loading user-specific data, or tracking app engagement.

When app home opened in Slack, get mastodon status in Mastodon.

Fires when a user opens your Slack app's Home tab or DM. Useful for refreshing the Home view, lazy-loading user-specific data, or tracking app engagement.

When app mentioned in Slack, follow mastodon account in Mastodon.

Fires when your Slack app is mentioned in a message. The standard hook for chatbots that answer when summoned with @your-app.

When app mentioned in Slack, get mastodon home timeline in Mastodon.

Fires when your Slack app is mentioned in a message. The standard hook for chatbots that answer when summoned with @your-app.

When app mentioned in Slack, get my mastodon account in Mastodon.

Fires when your Slack app is mentioned in a message. The standard hook for chatbots that answer when summoned with @your-app.

When app mentioned in Slack, get mastodon status in Mastodon.

Fires when your Slack app is mentioned in a message. The standard hook for chatbots that answer when summoned with @your-app.

When new channel in Slack, follow mastodon account in Mastodon.

Fires when a new Slack channel is created in the workspace. Useful for auto-adding the bot, welcome messages, or governance audit logs.

How it works

Connect Slack and Mastodon in five steps.

No code, no glue, no half-day setup. Each step is one click.

  1. 1
    Connect
    Authorize Slack and Mastodon

    Open Tiny Command, authorize Slack and Mastodon once each. Both connections are available to every workflow on your account.

  2. 2
    Trigger
    Pick a Slack trigger

    Drop the Slack → App Home Opened trigger onto the canvas. Tiny Command auto-registers the webhook.

    POST /v1/webhooks/slack.trigger-app-home-opened
  3. 3
    Transform
    Add a filter or AI step

    Optionally add a Filter node ("subject contains URGENT") or an AI step ("classify intent") between trigger and action.

  4. 4
    Action
    Add the Mastodon action

    Drop the Mastodon → Follow Mastodon Account action below it. Map fields from the Slack payload into the Mastodon inputs.

    mastodon.follow-account
  5. 5
    Publish
    Publish and forget

    Hit Publish. Tiny Command runs it in production from second one. Watch the run-log fill up.

FAQ

Questions about Slack + Mastodon.

How long does it take to connect Slack and Mastodon on Tiny Command?
Under two minutes. Authorize Slack and Mastodon once each, drop the Slack trigger and Mastodon action onto a workflow canvas, map a couple of fields, and publish. No code, no glue.
Is the Slack ↔ Mastodon integration real-time?
Yes. Both Slack and Mastodon expose webhooks, so events from one fire workflows in the other within seconds rather than on a polling interval.
Can I filter or transform data between Slack and Mastodon?
Yes. Add a Filter node to only pass through matching events, a Switch node to branch by value, or an AI / Code node to transform payloads before they hit Mastodon.
What Slack events can trigger a Mastodon workflow?
Any of the 13 Slack triggers, including "App Home Opened". Each fires in real time when the matching event happens in Slack.
Do I need a paid plan to use Slack with Mastodon?
No. There's a free tier that covers most Slack+Mastodon use cases without a credit card. Paid plans unlock higher run volumes and team features when you outgrow it.
What if I want Mastodon → Slack instead?
Build it the same way, in reverse. There's a dedicated /integrations/mastodon/with/slack page with the reverse-direction triggers and actions.
Related

Other apps that pair well with Slack.


Wire Slack to Mastodon in 2 minutes.

Free tier available. No credit card. No onboarding call.