Mattermost MCP Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| MATTERMOST_URL | Yes | Mattermost API URL (e.g., https://mattermost.example.com/api/v4) | |
| MATTERMOST_TOKEN | Yes | Mattermost personal access token | |
| MATTERMOST_TEAM_ID | Yes | Mattermost team ID |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| mattermost_list_channelsA | List channels in the Mattermost workspace. By default lists public team channels. Set include_private=true to get all channels including private channels and direct messages (DMs). |
| mattermost_get_channel_historyA | Get messages from a Mattermost channel. By default returns ALL messages. Use limit parameter to restrict the number of messages. |
| mattermost_post_messageC | Post a new message to a Mattermost channel |
| mattermost_reply_to_threadB | Reply to a specific message thread in Mattermost |
| mattermost_add_reactionB | Add a reaction emoji to a message |
| mattermost_get_thread_repliesA | Get all replies in a message thread |
| mattermost_get_usersB | Get a list of users in the Mattermost workspace with pagination |
| mattermost_get_user_profileB | Get detailed profile information for a specific user |
| mattermost_run_monitoringC | Run the topic monitoring process immediately |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 9 tools
All tools have clearly distinct purposes: messaging, user info, channels, reactions, and monitoring. No two tools overlap in functionality, making selection unambiguous.
All tools follow a consistent pattern of `mattermost_verb_noun` in snake_case, such as `mattermost_post_message` and `mattermost_list_channels`. No mixing of conventions.
9 tools is a well-scoped set for a Mattermost integration, covering essential operations without being overwhelming or sparse.
Covers core chat operations (read, post, reply, user info, channels, reactions, monitoring). Minor gaps like message editing or deletion are absent but the surface is mostly complete for typical workflows.