Bring Team Messaging
to Cline
Learn how to connect Mattermost to Cline and start using 12 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
What is the Mattermost MCP Server?
Connect your Mattermost workspace to any AI agent and manage team collaboration through natural conversation.
What you can do
- Messaging — Send, read, and reply to messages in channels and DMs
- Channel Management — Create, join, and archive channels
- Thread Tracking — Browse message threads and ongoing discussions
- User Management — View user profiles, roles, and online status
- Search — Search for messages, files, and users across the workspace
- Webhooks — Trigger actions and monitor incoming webhooks
How it works
1. Subscribe to this server
2. Enter your Mattermost Base URL and Access Token
3. Start managing your workspace from Claude, Cursor, or any MCP-compatible client
Who is this for?
- DevOps — automate alerts and incident response channels
- Engineering Teams — integrate code deployments with chat
- Community Managers — manage large open-source communities
Built-in capabilities (12)
Create a channel
Get user info
Check server settings
Get team info
Get channel history
Get event configs
List all users
List access roles
List team channels
List your teams
Send chat message
Check API health
Why Cline?
Cline operates autonomously inside VS Code. it reads your codebase, plans a strategy, and executes multi-step tasks including Mattermost tool calls without waiting for prompts between steps. Connect 12 tools through Vinkius and Cline can fetch data, generate code, and commit changes in a single autonomous run.
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Cline operates autonomously. it reads your codebase, plans a strategy, and executes multi-step tasks including MCP tool calls without step-by-step prompts
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Runs inside VS Code, so you get MCP tool access alongside your existing extensions, terminal, and version control in a single window
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Cline can create, edit, and delete files based on MCP tool responses, enabling end-to-end automation from data retrieval to code generation
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Transparent execution: every tool call and file change is shown in Cline's activity log for full visibility and approval before committing
Mattermost in Cline
Mattermost and 3,400+ other MCP servers. One platform. One governance layer.
Teams that connect Mattermost to Cline through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 3,400+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Mattermost in Cline
The Mattermost MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 12 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in Cline only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
How Vinkius secures
Mattermost for Cline
Every tool call from Cline to the Mattermost MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Can I read messages and reply to threads?
Yes. Browse channel history, read specific threads, and post replies or new messages with markdown formatting.
How does Mattermost authentication work?
Mattermost requires your instance's Base URL and a Personal Access Token for Bearer authentication.
Can I manage channels and users?
Yes. Create new public/private channels, invite users, and check their online status.
How does Cline connect to MCP servers?
Cline reads MCP server configurations from its settings panel in VS Code. Add the server URL and Cline discovers all available tools on initialization.
Can Cline run MCP tools without approval?
By default, Cline asks for confirmation before executing tool calls. You can configure auto-approval rules for trusted servers in the settings.
Does Cline support multiple MCP servers at once?
Yes. Configure as many servers as needed. Cline can use tools from different servers within the same autonomous task execution.
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