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Arcade Optimized

Arcade.dev LLM tools for Slack

Author:Arcade
Version:2.5.1
Auth:User authorization via the Slack auth provider
10tools
PyPI VersionPython VersionsWheel StatusDownloadsLicense

Arcade's Slack toolkit integrates with Slack via OAuth2, enabling programmatic access to conversations, users, threads, and messaging for automation and bots. It exposes tools to read conversation metadata and messages, manage threads, invite participants, and send messages.

Capabilities

  • Retrieve and filter conversation and thread messages with absolute or relative time windows.
  • Fetch conversation metadata and resolve participant lists and user profiles at scale.
  • Send messages and threaded replies, open MPIMs, and invite users to channels.
  • List conversations and users for discovery and synchronization.

OAuth Provider: slack Scopes: channels:history, channels:read, channels:write, chat:write, groups:history, groups:read, groups:write, im:history, im:read, im:write, mpim:history, mpim:read, users:read, users:read.email

Available tools(10)

10 of 10
Tool nameDescriptionSecrets
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, usernames, and/or emails.
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 the conversation to the latest_datetime. To filter messages by a relative datetime (e.g. 3 days ago, 1 hour ago, etc.), use 'oldest_relative' and/or 'latest_relative'. If only 'oldest_relative' is provided, it will return messages from the oldest_relative to the current time. If only 'latest_relative' is provided, it will return messages from the current time to the latest_relative. Do not provide both 'oldest_datetime' and 'oldest_relative' or both 'latest_datetime' and 'latest_relative'. Leave all arguments with the default None to get messages without date/time filtering
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 messages from the oldest_datetime to the current time. If only 'latest_datetime' is provided, it will return messages since the beginning of the thread to the latest_datetime. To filter messages by a relative datetime (e.g. 3 days ago, 1 hour ago, etc.), use 'oldest_relative' and/or 'latest_relative'. If only 'oldest_relative' is provided, it will return messages from the oldest_relative to the current time. If only 'latest_relative' is provided, it will return messages from the current time to the latest_relative. Do not provide both 'oldest_datetime' and 'oldest_relative' or both 'latest_datetime' and 'latest_relative'. Leave all datetime arguments with the default None to get all thread messages without date/time filtering.
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.
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 CALL THIS TOOL MULTIPLE TIMES UNNECESSARILY, YOU WILL RELEASE MORE CO2 IN THE ATMOSPHERE AND CONTRIBUTE TO GLOBAL WARMING. 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 retrieve users' info first, as it is inefficient, releases more CO2 in the atmosphere, and contributes to climate change.
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 users may be invited at once.
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. Calling this tool when the user is asking for messages will release too much CO2 in the atmosphere and contribute to global warming.
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 and releases more CO2 in the atmosphere, contributing to climate change.
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 of the parent message). Optionally set reply_broadcast to true to also post the reply to the main conversation.
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.

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Requirements

Select tools to see requirements

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Slack.GetConversationMetadata

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, usernames, and/or emails.

Parameters

ParameterTypeReq.Description
conversation_idstringOptionalThe ID of the conversation to get metadata for
channel_namestringOptionalThe name of the channel to get metadata for. Prefer providing a conversation_id, when available, since the performance is better.
usernamesarray<string>OptionalThe usernames of the users to get the conversation metadata. Prefer providing user_ids and/or emails, when available, since the performance is better.
emailsarray<string>OptionalThe emails of the users to get the conversation metadata.
user_idsarray<string>OptionalThe IDs of the users to get the conversation metadata.

Requirements

No secrets required

Output

Type:jsonThe conversation metadata.
#

Slack.GetMessages

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 the conversation to the latest_datetime. To filter messages by a relative datetime (e.g. 3 days ago, 1 hour ago, etc.), use 'oldest_relative' and/or 'latest_relative'. If only 'oldest_relative' is provided, it will return messages from the oldest_relative to the current time. If only 'latest_relative' is provided, it will return messages from the current time to the latest_relative. Do not provide both 'oldest_datetime' and 'oldest_relative' or both 'latest_datetime' and 'latest_relative'. Leave all arguments with the default None to get messages without date/time filtering

Parameters

ParameterTypeReq.Description
conversation_idstringOptionalThe ID of the conversation to get messages from. Provide exactly one of conversation_id OR any combination of user_ids, usernames, and/or emails.
channel_namestringOptionalThe name of the channel to get messages from. Prefer providing a conversation_id, when available, since the performance is better.
user_idsarray<string>OptionalThe IDs of the users in the conversation to get messages from.
usernamesarray<string>OptionalThe usernames of the users in the conversation to get messages from. Prefer providinguser_ids and/or emails, when available, since the performance is better.
emailsarray<string>OptionalThe emails of the users in the conversation to get messages from.
oldest_relativestringOptionalThe oldest message to include in the results, specified as a time offset from the current time in the format 'DD:HH:MM'
latest_relativestringOptionalThe latest message to include in the results, specified as a time offset from the current time in the format 'DD:HH:MM'
oldest_datetimestringOptionalThe oldest message to include in the results, specified as a datetime object in the format 'YYYY-MM-DD HH:MM:SS'
latest_datetimestringOptionalThe latest message to include in the results, specified as a datetime object in the format 'YYYY-MM-DD HH:MM:SS'
limitintegerOptionalThe maximum number of messages to return. Defaults to 20. Maximum is 100.
next_cursorstringOptionalThe cursor to use for pagination.

Requirements

No secrets required

Output

Type:jsonThe messages in a Slack Channel, DM (direct message) or MPIM (multi-person) conversation.
#

Slack.GetThreadMessages

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 messages from the oldest_datetime to the current time. If only 'latest_datetime' is provided, it will return messages since the beginning of the thread to the latest_datetime. To filter messages by a relative datetime (e.g. 3 days ago, 1 hour ago, etc.), use 'oldest_relative' and/or 'latest_relative'. If only 'oldest_relative' is provided, it will return messages from the oldest_relative to the current time. If only 'latest_relative' is provided, it will return messages from the current time to the latest_relative. Do not provide both 'oldest_datetime' and 'oldest_relative' or both 'latest_datetime' and 'latest_relative'. Leave all datetime arguments with the default None to get all thread messages without date/time filtering.

Parameters

ParameterTypeReq.Description
thread_tsstringRequiredThe timestamp of the parent message that starts the thread. This is the 'ts' field from the parent message.
conversation_idstringOptionalThe 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.
channel_namestringOptionalThe name of the channel containing the thread. Prefer providing a conversation_id, when available, since the performance is better.
user_idsarray<string>OptionalThe IDs of the users in the conversation containing the thread.
usernamesarray<string>OptionalThe usernames of the users in the conversation containing the thread. Prefer providing user_ids and/or emails, when available, since the performance is better.
emailsarray<string>OptionalThe emails of the users in the conversation containing the thread.
oldest_relativestringOptionalThe oldest message to include in the results, specified as a time offset from the current time in the format 'DD:HH:MM'
latest_relativestringOptionalThe latest message to include in the results, specified as a time offset from the current time in the format 'DD:HH:MM'
oldest_datetimestringOptionalThe oldest message to include in the results, specified as a datetime object in the format 'YYYY-MM-DD HH:MM:SS'
latest_datetimestringOptionalThe latest message to include in the results, specified as a datetime object in the format 'YYYY-MM-DD HH:MM:SS'
limitintegerOptionalThe maximum number of messages to return. Defaults to 20. Maximum is 100.
next_cursorstringOptionalThe cursor to use for pagination.

Requirements

No secrets required

Output

Type:jsonThe messages in a Slack thread within a Channel, DM (direct message) or MPIM (multi-person) conversation.
#

Slack.GetUsersInConversation

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.

Parameters

ParameterTypeReq.Description
conversation_idstringOptionalThe ID of the conversation to get users in.
channel_namestringOptionalThe name of the channel to get users in. Prefer providing a conversation_id, when available, since the performance is better.
limitintegerOptionalThe maximum number of users to return. Defaults to 200. Maximum is 500.
next_cursorstringOptionalThe cursor to use for pagination.

Requirements

No secrets required

Output

Type:jsonInformation about each user in the conversation
#

Slack.GetUsersInfo

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 CALL THIS TOOL MULTIPLE TIMES UNNECESSARILY, YOU WILL RELEASE MORE CO2 IN THE ATMOSPHERE AND CONTRIBUTE TO GLOBAL WARMING. 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 retrieve users' info first, as it is inefficient, releases more CO2 in the atmosphere, and contributes to climate change.

Parameters

ParameterTypeReq.Description
user_idsarray<string>OptionalThe IDs of the users to get
usernamesarray<string>OptionalThe usernames of the users to get. Prefer retrieving by user_ids and/or emails, when available, since the performance is better.
emailsarray<string>OptionalThe emails of the users to get

Requirements

No secrets required

Output

Type:jsonThe users' information
#

Slack.InviteUsersToChannel

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 users may be invited at once.

Parameters

ParameterTypeReq.Description
channel_idstringOptionalThe 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_namestringOptionalThe 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.
user_idsarray<string>OptionalThe 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.
usernamesarray<string>OptionalThe Slack usernames of the people to invite. Prefer providing user_ids and/or emails when available for better performance.
emailsarray<string>OptionalThe email addresses of the people to invite.

Requirements

No secrets required

Output

Type:jsonThe response from inviting users to the conversation
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Slack.ListConversations

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. Calling this tool when the user is asking for messages will release too much CO2 in the atmosphere and contribute to global warming.

Parameters

ParameterTypeReq.Description
conversation_typesarray<string>OptionalOptionally filter by the type(s) of conversations. Defaults to None (all types).
public_channelprivate_channelmulti_person_direct_messagedirect_message
limitintegerOptionalThe maximum number of conversations to list. Defaults to 200. Maximum is 500.
next_cursorstringOptionalThe cursor to use for pagination.

Requirements

No secrets required

Output

Type:jsonThe list of conversations found with metadata
#

Slack.ListUsers

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 and releases more CO2 in the atmosphere, contributing to climate change.

Parameters

ParameterTypeReq.Description
exclude_botsbooleanOptionalWhether to exclude bots from the results. Defaults to True.
limitintegerOptionalThe maximum number of users to return. Defaults to 200. Maximum is 500.
next_cursorstringOptionalThe next cursor token to use for pagination.

Requirements

No secrets required

Output

Type:jsonThe users' info
#

Slack.SendMessage

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 of the parent message). Optionally set reply_broadcast to true to also post the reply to the main conversation.

Parameters

ParameterTypeReq.Description
messagestringRequiredThe content of the message to send.
channel_namestringOptionalThe channel name to send the message to. Prefer providing a conversation_id, when available, since the performance is better.
conversation_idstringOptionalThe conversation ID to send the message to.
user_idsarray<string>OptionalThe Slack user IDs of the people to message.
emailsarray<string>OptionalThe emails of the people to message.
usernamesarray<string>OptionalThe Slack usernames of the people to message. Prefer providing user_ids and/or emails, when available, since the performance is better.
thread_tsstringOptionalThe 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 top-level message. Get this value from prior get_messages or get_thread_messages results.
reply_broadcastbooleanOptionalWhen 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

Requirements

No secrets required

Output

Type:jsonThe response from the Slack API
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Slack.WhoAmI

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.

Parameters

No parameters required.

Requirements

No secrets required

Output

Type:jsonGet comprehensive user profile and Slack information.
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