Hosted MCP server · #32 most used on Smithery · ✓ verified
Slack
slack
Read Slack conversations, threads, and user directories, send messages, and invite users to channels.
- Uses
- 12k
- Tools
- 11
- Runs
- Hosted
- Listed
- 12mo ago
Get started
Add it to your agent
npx -y @smithery/cli@latest install slack --client claudeSwap --client claude for cursor, vscode, windsurf or another client. The CLI asks for any required settings.
claude mcp add --transport http slack https://server.smithery.ai/slack/mcpA hosted server: nothing to install. Run /mcp in Claude Code to sign in if it asks.
[mcp_servers.slack]
url = "https://server.smithery.ai/slack/mcp"Add to ~/.codex/config.toml.
{
"mcpServers": {
"slack": {
"url": "https://server.smithery.ai/slack/mcp"
}
}
}Add to ~/.cursor/mcp.json.
{
"servers": {
"slack": {
"type": "http",
"url": "https://server.smithery.ai/slack/mcp"
}
}
}Add to .vscode/mcp.json.
gemini mcp add --transport http slack https://server.smithery.ai/slack/mcpSaved to .gemini/settings.json.
What it can do
11 tools
Arcade_ListAppsSee the apps the current caller can act on and whether they are connected. Returns each app's id, name, connected state, and (when connec…
See the apps the current caller can act on and whether they are connected. Returns each app's id, name, connected state, and (when connected) the account it is connected as. Call this to answer "what apps do I have?" or when the caller's connection state may have changed since the session started.
Slack_GetConversationMetadata5 paramsGet metadata of a Channel, a Direct Message (IM / DM) or a Multi-Person (MPIM) conversation. Use this tool to retrieve metadata about a c…
Get metadata of a Channel, a Direct Message (IM / DM) or a Multi-Person (MPIM) conversation. Use this tool to retrieve metadata about a conversation with a conversation_id, a channel name, or by the user_id(s), username(s), and/or email(s) of the user(s) in the conversation. This tool does not return the messages in a conversation. To get the messages, use the 'Slack.GetMessages' tool instead. Provide exactly one of: - conversation_id; or - channel_name; or - any combination of user_ids, usernam
| Parameter | Type | Description |
|---|---|---|
emails | array | The emails of the users to get the conversation metadata. |
user_ids | array | The IDs of the users to get the conversation metadata. |
usernames | array | The usernames of the users to get the conversation metadata. Prefer providing user_ids and/or emails, when available, since the performance is better. |
channel_name | string | The name of the channel to get metadata for. Prefer providing a conversation_id, when available, since the performance is better. |
conversation_id | string | The ID of the conversation to get metadata for |
Slack_GetMessages11 paramsGet messages in a Slack Channel, DM (direct message) or MPIM (multi-person) conversation. Provide exactly one of: - conversation_id; or -…
Get messages in a Slack Channel, DM (direct message) or MPIM (multi-person) conversation. Provide exactly one of: - conversation_id; or - channel_name; or - any combination of user_ids, usernames, and/or emails. To filter messages by an absolute datetime, use 'oldest_datetime' and/or 'latest_datetime'. If only 'oldest_datetime' is provided, it will return messages from the oldest_datetime to the current time. If only 'latest_datetime' is provided, it will return messages since the beginning of t
| Parameter | Type | Description |
|---|---|---|
limit | integer | The maximum number of messages to return. Defaults to 20. Maximum is 100. |
emails | array | The emails of the users in the conversation to get messages from. |
user_ids | array | The IDs of the users in the conversation to get messages from. |
usernames | array | The usernames of the users in the conversation to get messages from. Prefer providinguser_ids and/or emails, when available, since the performance is better. |
next_cursor | string | The cursor to use for pagination. |
channel_name | string | The name of the channel to get messages from. Prefer providing a conversation_id, when available, since the performance is better. |
conversation_id | string | The ID of the conversation to get messages from. Provide exactly one of conversation_id OR any combination of user_ids, usernames, and/or emails. |
latest_datetime | string | The latest message to include in the results, specified as a datetime object in the format 'YYYY-MM-DD HH:MM:SS' or ISO 8601. |
latest_relative | string | The latest message to include in the results, specified as a time offset from the current time. Use only the numeric 'DD:HH:MM' format; convert relative phrases to that format before calling this tool |
oldest_datetime | string | The oldest message to include in the results, specified as a datetime object in the format 'YYYY-MM-DD HH:MM:SS' or ISO 8601. |
oldest_relative | string | The oldest message to include in the results, specified as a time offset from the current time. Use only the numeric 'DD:HH:MM' format; convert relative phrases to that format before calling this tool |
Slack_GetThreadMessages12 paramsGet messages in a Slack thread. A thread is a collection of messages grouped together as replies to a parent message. This tool retrieves…
Get messages in a Slack thread. A thread is a collection of messages grouped together as replies to a parent message. This tool retrieves all messages in a specific thread, identified by the parent message's timestamp (thread_ts). Provide exactly one of: - conversation_id; or - channel_name; or - any combination of user_ids, usernames, and/or emails. To filter messages by an absolute datetime, use 'oldest_datetime' and/or 'latest_datetime'. If only 'oldest_datetime' is provided, it will return m
| Parameter | Type | Description |
|---|---|---|
limit | integer | The maximum number of messages to return. Defaults to 20. Maximum is 100. |
emails | array | The emails of the users in the conversation containing the thread. |
user_ids | array | The IDs of the users in the conversation containing the thread. |
thread_ts | string | The timestamp of the parent message that starts the thread. This is the 'ts' field from the parent message. |
usernames | array | The usernames of the users in the conversation containing the thread. Prefer providing user_ids and/or emails, when available, since the performance is better. |
next_cursor | string | The cursor to use for pagination. |
channel_name | string | The name of the channel containing the thread. Prefer providing a conversation_id, when available, since the performance is better. |
conversation_id | string | The ID of the conversation containing the thread. Provide exactly one of conversation_id OR channel_name OR any combination of user_ids, usernames, and/or emails. |
latest_datetime | string | The latest message to include in the results, specified as a datetime object in the format 'YYYY-MM-DD HH:MM:SS' or ISO 8601. |
latest_relative | string | The latest message to include in the results, specified as a time offset from the current time. Use only the numeric 'DD:HH:MM' format; convert relative phrases to that format before calling this tool |
oldest_datetime | string | The oldest message to include in the results, specified as a datetime object in the format 'YYYY-MM-DD HH:MM:SS' or ISO 8601. |
oldest_relative | string | The oldest message to include in the results, specified as a time offset from the current time. Use only the numeric 'DD:HH:MM' format; convert relative phrases to that format before calling this tool |
Slack_GetUsersInConversation4 paramsGet the users in a Slack conversation (Channel, DM/IM, or MPIM) by its ID or by channel name. Provide exactly one of conversation_id or c…
Get the users in a Slack conversation (Channel, DM/IM, or MPIM) by its ID or by channel name. Provide exactly one of conversation_id or channel_name. Prefer providing a conversation_id, when available, since the performance is better.
| Parameter | Type | Description |
|---|---|---|
limit | integer | The maximum number of users to return. Defaults to 200. Maximum is 500. |
next_cursor | string | The cursor to use for pagination. |
channel_name | string | The name of the channel to get users in. Prefer providing a conversation_id, when available, since the performance is better. |
conversation_id | string | The ID of the conversation to get users in. |
Slack_GetUsersInfo3 paramsGet the information of one or more users in Slack by ID, username, and/or email. Provide any combination of user_ids, usernames, and/or e…
Get the information of one or more users in Slack by ID, username, and/or email. Provide any combination of user_ids, usernames, and/or emails. If you need to retrieve data about multiple users, DO NOT CALL THE TOOL MULTIPLE TIMES. Instead, call it once with all the user_ids, usernames, and/or emails. If you need to get metadata or messages of a conversation, use the `Slack.GetConversationMetadata` or `Slack.GetMessages` tool instead. These tools accept user_ids, usernames, and/or emails. Do not
| Parameter | Type | Description |
|---|---|---|
emails | array | The emails of the users to get |
user_ids | array | The IDs of the users to get |
usernames | array | The usernames of the users to get. Prefer retrieving by user_ids and/or emails, when available, since the performance is better. |
Slack_InviteUsersToChannel5 paramsInvite users to a Slack channel or MPIM (multi-person direct message). This tool invites specified users to join a Slack conversation. It…
Invite users to a Slack channel or MPIM (multi-person direct message). This tool invites specified users to join a Slack conversation. It works with: - Public channels - Private channels - MPIMs (multi-person direct messages / group DMs) You can specify users by their user IDs, usernames, or email addresses. Provide exactly one of channel_id or channel_name, and at least one of user_ids, usernames, or emails. The tool will resolve usernames and emails to user IDs before inviting them. Up to 100
| Parameter | Type | Description |
|---|---|---|
emails | array | The email addresses of the people to invite. |
user_ids | array | The Slack user IDs of the people to invite. Up to 100 users may be listed. Provide at least one of user_ids, usernames, or emails. |
usernames | array | The Slack usernames of the people to invite. Prefer providing user_ids and/or emails when available for better performance. |
channel_id | string | The ID of the Slack channel or MPIM (multi-person direct message) to invite users to. Provide exactly one of channel_id OR channel_name. |
channel_name | string | The name of the channel to invite users to. Prefer providing a channel_id when available for better performance. Note: MPIMs don't have names, so use channel_id for MPIMs. |
Slack_ListConversations3 paramsList metadata for Slack conversations (channels, DMs, MPIMs) the user is a member of. This tool does not return the messages in a convers…
List metadata for Slack conversations (channels, DMs, MPIMs) the user is a member of. This tool does not return the messages in a conversation. To get the messages, use the 'Slack.GetMessages' tool instead.
| Parameter | Type | Description |
|---|---|---|
limit | integer | The maximum number of conversations to list. Defaults to 200. Maximum is 500. |
next_cursor | string | The cursor to use for pagination. |
conversation_types | array | Optionally filter by the type(s) of conversations. Defaults to None (all types). |
Slack_ListUsers3 paramsList all users in the authenticated user's Slack team. If you need to get metadata or messages of a conversation, use the `Slack.GetConve…
List all users in the authenticated user's Slack team. If you need to get metadata or messages of a conversation, use the `Slack.GetConversationMetadata` tool or `Slack.GetMessages` tool instead. These tools accept a user_id, username, and/or email. Do not use this tool to first retrieve user(s), as it is inefficient.
| Parameter | Type | Description |
|---|---|---|
limit | integer | The maximum number of users to return. Defaults to 200. Maximum is 500. |
next_cursor | string | The next cursor token to use for pagination. |
exclude_bots | boolean | Whether to exclude bots from the results. Defaults to True. |
Slack_SendMessage8 paramsSend a message to a Channel, Direct Message (IM/DM), or Multi-Person (MPIM) conversation. Can send top-level messages or reply to an exis…
Send a message to a Channel, Direct Message (IM/DM), or Multi-Person (MPIM) conversation. Can send top-level messages or reply to an existing thread. Provide exactly one of: - channel_name; or - conversation_id; or - any combination of user_ids, usernames, and/or emails. In case multiple user_ids, usernames, and/or emails are provided, the tool will open a multi-person conversation with the specified people and send the message to it. To reply to a thread, also provide thread_ts (the 'ts' field
| Parameter | Type | Description |
|---|---|---|
emails | array | The emails of the people to message. |
message | string | The content of the message to send. |
user_ids | array | The Slack user IDs of the people to message. |
thread_ts | string | The timestamp of the parent message to reply to in a thread. Use the 'ts' field from the parent message (the first message in the thread), not from a reply. If omitted, the message is sent as a new to |
usernames | array | The Slack usernames of the people to message. Prefer providing user_ids and/or emails, when available, since the performance is better. |
channel_name | string | The channel name to send the message to. Prefer providing a conversation_id, when available, since the performance is better. |
conversation_id | string | The conversation ID to send the message to. |
reply_broadcast | boolean | When replying to a thread (thread_ts is set), set to true to also post the reply to the main conversation. Only valid when thread_ts is provided. Defaults to False |
Slack_WhoAmIGet comprehensive user profile and Slack information. This tool provides detailed information about the authenticated user including thei…
Get comprehensive user profile and Slack information. This tool provides detailed information about the authenticated user including their name, email, profile picture, and other important profile details from Slack services.