Verified record · from the answer index
Mattermost (Activepieces)
librarytested · static-verifiedscore 61/100signed passport ✓published 29d ago · verified 2026-10-240 uses
Open-source, self-hosted Slack alternative 2 actions, run inside an Activepieces flow.
Declared tools (2)
send_messagecustom_api_call
Install
claude mcp add piece-mattermost -- npx -y @activepieces/piece-mattermost
lib:npm:@activepieces/piece-mattermost · published by activepieces