Self-hosted Slack MCP alternatives
The Slack MCP server installs locally over stdio and reaches history, DMs, and search with no workspace bot to install, so the process and its token stay on your own machine. If keeping the server local is the requirement, the alternatives below do the same.
Each one ships a local command rather than a managed URL. Worth stating plainly: self-hosting controls where the process and credentials live, but the workspace data still travels to each product's own API unless the server reads local files. Obsidian, on local Markdown, is the exception.
The 8 best self-hosted alternatives
Airtable's maintained server installs locally and is schema-first: an agent inspects a base, then reads, searches, and writes records, fields, and comments, all from a process you control.
Set up Airtable →Run on your own machine, the Coda server connects an agent to docs, pages, tables, and rows for reading and editing, keeping the connector off a managed endpoint.
Set up Coda →- TrelloCommunity
Board-style work fits Trello, and its server runs over stdio with full control of boards, lists, cards, checklists, labels, members, and attachments from a local process.
Set up Trello → Of everything here, Obsidian keeps the most on your disk: the vault is local Markdown, and the server reads, searches, and edits it through the Local REST API plugin without the content leaving your machine.
Set up Obsidian →Powered by Telethon, the Telegram server runs locally and reads chats, manages groups and contacts, and sends or edits messages and media, the local chat option when the community is on Telegram rather than Slack.
Set up Telegram →For messaging an audience rather than a team channel, LINE's official server runs locally and pushes or broadcasts text and flex messages, manages rich menus, and reads profiles for a LINE Official Account.
Set up LINE →Teams that run on boards can host monday.com's official server on their own infrastructure, creating and updating items and managing boards, columns, and groups, plus raw API queries.
Set up monday.com →An open-core tracker you can host yourself, Plane installs locally and exposes its full project API, work items, cycles, modules, and more, when the thread is really project work.
Set up Plane →
How to choose
All of these install over stdio, so the MCP process and token stay on your infrastructure. Telegram and LINE are the messaging picks, Airtable and Coda handle records and docs, Trello, monday, and Plane cover boards and project tracking. Only Obsidian keeps the content itself local, since it reads Markdown files. For the rest, the server is local but the data still goes to each product's API.
FAQ
- Can the Slack MCP server be self-hosted?
- Yes. The community Slack server installs locally over stdio and reaches history, DMs, and search with no workspace bot, so the process and its token run on your own machine.
- Does self-hosting the server keep my data on my own infrastructure?
- It keeps the MCP server process and credentials local. The workspace data itself still goes to each product's API, with Airtable, Coda, Trello, monday, and the rest. Obsidian is the exception: it reads local Markdown, so the content stays on your disk.