---
title: "For Developers and Integrators"
description: "Start here if you build plugins, use the REST API, or integrate Mattermost with other systems."
slug: /for/developer
displayed_sidebar: documentation
hide_table_of_contents: true
---

<Eyebrow>Persona landing</Eyebrow>

# For Developers and Integrators

You build plugins, hit the REST API, or integrate Mattermost with other systems. This page is a curated entry point — the bulk of the canonical content lives in the Developers tab and the API reference.

## Start here

<CardGrid columns={3} cards={[
  {title: 'Developers tab', to: '/developers', description: 'Plugin SDK, integrate-and-extend, contribution.'},
  {title: 'API reference', to: '/api', description: '590 endpoints generated from the OpenAPI spec.', meta: '590 endpoints'},
  {title: 'Integrations Guide', to: '/integrations-guide/integrations-guide-index', description: 'Plugins, webhooks, slash commands.'},
]} />

## Common tasks

<CardGrid columns={3} cards={[
  {title: 'Build a plugin', to: '/developers/integrate/plugins', description: 'Server plugin lifecycle, web app component model.'},
  {title: 'Incoming webhooks', to: '/developers/integrate/webhooks/incoming', description: 'Post messages into Mattermost from external systems.'},
  {title: 'Outgoing webhooks', to: '/developers/integrate/webhooks/outgoing', description: 'Trigger external systems from Mattermost events.'},
  {title: 'Slash commands', to: '/integrations-guide/run-slash-commands', description: 'Custom user-triggered actions in chat.'},
  {title: 'REST API basics', to: '/integrations-guide/restful-api', description: 'Authentication, rate limits, and client libraries.'},
  {title: 'Interactive messages', to: '/developers/integrate/plugins/interactive-messages', description: 'Buttons and menus in message attachments.'},
]} />

## Other personas

<CardGrid columns={3} cards={[
  {title: 'For administrators', to: '/for/administrator', description: 'Workspace configuration and operation.'},
  {title: 'For SREs / platform operators', to: '/for/sre', description: 'Deploy, scale, observe.'},
  {title: 'For end users', to: '/for/end-user', description: 'Use Mattermost day to day.'},
]} />