Channelchat

io.github.CloudCorpRecordsPublished by GitHub account CloudCorpRecordsv0.1.0Updated Nov 3, 2026

Slack channels, messages, threads, reactions and users via the Slack Web API.

VerifiedSTDIODesktop onlyCommunication & Collaboration

Overview

Channelchat's local MCP server; no sign-in required; STDIO.

No AI overview yet: these facts come from the registry entry and the server itself.

Installation

In SourceWeft

  1. Open Channelchat in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

channelchat

channelchat gives an MCP client a working presence in a Slack workspace: list the channels, post a message, carry on a thread, drop a reaction, and look back over history or up at the member list. It implements the full documented server-slack tool set — all eight tools — against the Slack Web API.

Two environment variables are required, exactly as in the original server: SLACK_BOT_TOKEN (the bot user OAuth token, sent as a Bearer token) and SLACK_TEAM_ID (the workspace id, passed to the methods that accept one). If either is missing, every call fails with an error naming the missing variable instead of failing the handshake.

Slack's Web API answers HTTP 200 even when a call fails, with an ok: false body; channelchat surfaces that body's error string as the tool error, so channel_not_found and friends reach the caller verbatim.

Install

bash
npx @reneturcios/channelchat slack_list_channelsdocker run -i -e SLACK_BOT_TOKEN -e SLACK_TEAM_ID ghcr.io/cloudcorprecords/channelchat

CLI

bash
channelchat slack_list_channels --limit 20channelchat slack_post_message --channel-id C0123 --text "deploy finished"channelchat slack_reply_to_thread --channel-id C0123 --thread-ts 1700000000.000100 --text "looking into it"channelchat slack_add_reaction --channel-id C0123 --timestamp 1700000000.000100 --reaction thumbsupchannelchat slack_get_user_profile --user-id U0123channelchat --version

Exit codes: 0 success, 1 API error, 2 usage error.

MCP server

bash
npx -y @reneturcios/channelchat mcp
json
{  "mcpServers": {    "channelchat": {      "command": "npx",      "args": ["-y", "@reneturcios/channelchat", "mcp"],      "env": { "SLACK_BOT_TOKEN": "xoxb-...", "SLACK_TEAM_ID": "T0123" }    }  }}

Tools

ToolRequiredOptional
slack_list_channels—types, exclude_archived, limit
slack_post_messagechannel_id, text—
slack_reply_to_threadchannel_id, thread_ts, text—
slack_add_reactionchannel_id, timestamp, reaction—
slack_get_channel_historychannel_idlimit
slack_get_thread_replieschannel_id, thread_ts—
slack_get_users—cursor, limit
slack_get_user_profileuser_id—

Tool arguments use the caller-facing names from the documented surface (channel_id, thread_ts, reaction, user_id); the core maps them onto the Web API's parameter names (channel, ts, name, user) when it builds each request.

Development

bash
npm installnpm run buildnpm testnpm run dev

Tests run entirely on fake-fetch fixtures, including Slack's HTTP-200-with-ok: false error shape; no network is used.

License

MIT — see LICENSE.

Source: README.md at commit 59f0a46

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v0.1.0LatestNov 3, 2026

Score

50% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts