Slack

Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/pulsemcp-com-slack

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools

3 read · 6 write · 0 delete

Secrets

1 (API keys, tokens or passwords)

Install scripts

Not scanned yet

Runs as

Node.js package

Tools (9)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

• slack_download_file

  Download a file from Slack to a local temporary path. Slack files require authentication to access, so this tool handles the download using the bot token. It saves the file to a temporary directory and returns the local file path. **Returns:** - Local file path (file:// URI) where the downloaded file was saved - File metadata: name, type, size **Use cases:** - Download images shared in Slack to view them - Download documents, PDFs, or other files shared in channels - Access any file attachment from a Slack message **Note:** File IDs (e.g., "F1234567890") are shown in message outputs from s…

• slack_get_channel

  Get detailed information about a Slack channel, optionally including recent messages. Returns channel metadata (name, topic, purpose, member count) and optionally the most recent messages. This is equivalent to opening a channel in Slack. **Returns:** - Channel details: name, topic, purpose, member count, creation date - Recent messages (if include_messages is true): sender, content, timestamp, reactions, thread info **Use cases:** - Get context about a channel before posting - Read recent messages to understand current discussions - Check if a channel is active or archived - Find threads t…

• slack_get_channels

  List all Slack channels the bot has access to. Returns a list of public and private channels in the workspace that the bot can see. Each channel includes its ID, name, topic, purpose, and member count. **Returns:** A formatted list of channels with their key details including: - Channel ID (needed for other operations) - Channel name - Topic and purpose - Whether the channel is private or archived - Number of members **Use cases:** - Discover available channels to read or post to - Find a specific channel's ID for subsequent operations - Get an overview of the workspace's channel structure …

• slack_get_thread

  Get a thread conversation with all its replies. Returns the parent message and all replies in a thread. This is equivalent to clicking on "X replies" in Slack to expand a thread. **Returns:** - Parent message with full content - All reply messages in chronological order - Reactions on each message - Timestamps for each message **Use cases:** - Read an entire threaded conversation - Get context before replying to a thread - Review discussion history on a topic - Find the latest reply timestamp for adding new replies **Note:** The thread_ts parameter is the timestamp of the parent message, n…

• slack_post_message

  Post a new message to a Slack channel. Creates a new message in the specified channel. The message appears as a new post, not as a reply to any thread. **Returns:** - Confirmation of the posted message - The message timestamp (ts) which can be used to: - Start a thread by replying with slack_reply_to_thread - Edit the message with slack_update_message - Add reactions with slack_react_to_message **Use cases:** - Share information with a channel - Start a new discussion topic - Post announcements or updates - Ask questions to the channel **Note:** To reply to an existing thread, use sl…

• slack_react_to_message

  Add an emoji reaction to a message in Slack. Adds a reaction (emoji) to a specific message. Reactions are a lightweight way to acknowledge or respond to messages without creating a new message. **Returns:** - Confirmation that the reaction was added **Common emoji names:** - Positive: thumbsup, +1, heart, tada, star, clap - Acknowledgment: eyes, white_check_mark, ok_hand - Negative: thumbsdown, -1, x - Status: hourglass, warning, question, exclamation **Use cases:** - Acknowledge that you've seen a message (:eyes:) - Mark a task as complete (:white_check_mark:) - Show approval or agreement…

• slack_reply_to_thread

  Reply to an existing thread in Slack. Posts a message as a reply to a specific thread. The reply will appear nested under the parent message. **Returns:** - Confirmation of the posted reply - The reply's timestamp (ts) for further operations **Use cases:** - Continue a threaded conversation - Answer a question in a thread - Provide follow-up information - Keep discussions organized within threads **Note:** Use slack_get_thread first to read the conversation before replying.

• slack_update_message

  Update an existing message in Slack. Modifies the content of a message that was previously posted. The message will show an "(edited)" indicator after being updated. **Returns:** - Confirmation of the update - The updated message content **Use cases:** - Fix typos or errors in a message - Update information that has changed - Add clarifications to a previous message - Mark a task or question as resolved by editing the message **Note:** - You can only edit messages that the bot posted - The edit history is not preserved - only the final content is shown - Consider adding reactions instead i…

• slack_upload_snippet

  Upload text content as a file snippet to a Slack channel. Uploads content as a text file/snippet, bypassing Slack's message length limits. Use this when content is too long for slack_post_message (e.g., long URLs, logs, code, JSON payloads). **Returns:** - Confirmation of the uploaded snippet - The file ID for reference **Use cases:** - Share very long URLs that exceed message length limits - Post error logs, stack traces, or debug output - Share code snippets or configuration files - Upload large JSON or text payloads **Note:** For short messages that fit within Slack's limits, use slack_…

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Featured in

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Signals

Stars

81

Forks

10

Open issues

26

Contributors

4

Last commit (this folder)

Jun 14, 2026 (4 months ago)

Last release

Jun 14, 2026 (4 months ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name

com.pulsemcp/slack

Version

0.0.7

Auth

API key

Packages

npm slack-workspace-mcp-server

License

MIT

Repository

github.com/pulsemcp/mcp-servers

First seen

Oct 24, 2026

Last checked

Oct 24, 2026

Source

Official MCP Registrygithub-graphql