Mattermost
Mattermost (self-hosted) team messaging
Mattermost is the open-source Slack alternative deployed by teams that need on-prem messaging — defence, finance, regulated industries, and engineering orgs that want to own their data. Tiny Command connects to any Mattermost instance (self-hosted, Mattermost Cloud, on-prem) via a server URL plus a personal access token or bot account token. There are no real-time triggers in this connector — Mattermost emits events via WebSockets rather than HTTP webhooks, which doesn't fit Tiny Command's event model cleanly; for real-time, the standard pattern is to configure a Mattermost outgoing webhook on a slash-command or channel-keyword and point it at a Tiny Command webhook trigger. Seven actions cover the messaging surface: Send Message (channel post), Send Direct Message (1:1 or group DM), Search Posts (Mattermost's full-text query syntax), Get User, List Users, List Channels, and List Teams. The team-channel hierarchy is exposed everywhere — every channel belongs to a team, every user can be a member of multiple teams.
Do anything Mattermost can do, from a workflow.
Every action accepts dynamic inputs from upstream nodes, whether that's an AI output, a form field, or a search result.
| Action | What it does |
|---|---|
| Get Mattermost User | Returns a user by ID with profile and team memberships. Useful for resolving user IDs to readable identity in downstream notifications. |
| List Mattermost Channels | Returns channels in a team that the connected user can see. Useful for channel inventory and for resolving channel IDs at workflow setup. |
| List Mattermost Teams | Returns teams the connected user is a member of. The base lookup for multi-team workspaces. |
| List Mattermost Users | Returns users in a team or workspace. Useful for "ping every team member" fan-out workflows or for user directory sync. |
| Search Mattermost Posts | Full-text search with channel and date filters. For "find posts mentioning X" archive-search workflows. |
| Send Mattermost DM | Sends a 1:1 or group DM by passing user IDs. Auto-creates the DM channel if needed. For "alert specific person" notification patterns. |
| Send Mattermost Channel Message | Posts a message to a specific channel with optional attachments (Slack-attachment-style cards). The base hook for "external event → post to team channel" workflows. |
Pre-built Mattermost workflows.
Clone any recipe and customize it in one click. Every recipe is fully editable.
Three things worth knowing.
Tiny Command counts a run the moment a trigger fires. Filtering early means only matching events spend your usage budget.
Connect Mattermost once and every workflow on your account can use its triggers and actions. You don't have to re-auth per workflow.
Every Mattermost field shows up in the visual picker for downstream nodes. The raw payload is there for power users, optional for everyone else.
Questions about the Mattermost integration.
If we missed yours, ping support. We usually reply within an hour.
How do I connect Mattermost to Tiny Command?
What Mattermost triggers does Tiny Command support?
What Mattermost actions can I run from a workflow?
Is the Mattermost integration real-time?
Do I need to write code to use Mattermost with Tiny Command?
How much does the Mattermost integration cost?
More communication apps people connect.
Same category as Mattermost, ordered by how often teams pair them. Hover the carousel to pause.
Do more with Mattermost.
Wire it to Slack, Notion, HubSpot, Stripe, or any of the other 438 apps in our catalog. Setup takes roughly two minutes. Free to try, no credit card.
