Slack
Send, update, delete messages, manage views and modals, add or remove reactions, manage canvases, get channel info and user presence in Slack
Usage Instructions
Integrate Slack into the workflow. Can send, update, and delete messages, send ephemeral messages visible only to a specific user, open/update/push modal views, publish Home tab views, create canvases, read messages, and add or remove reactions. Requires Bot Token instead of OAuth in advanced mode. Can be used in trigger mode to trigger a workflow when a message is sent to a channel.
Tools
slack_message
Send messages to Slack channels or direct messages. Supports Slack mrkdwn formatting.
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
destinationType | string | No | No description |
botToken | string | No | No description |
channel | string | No | No description |
dmUserId | string | No | No description |
text | string | Yes | No description |
threadTs | string | No | No description |
blocks | json | No | Block Kit layout blocks as a JSON array. When provided, text becomes the fallback notification text. |
files | file[] | No | No description |
Output
| Parameter | Type | Description |
|---|---|---|
message | object | Complete message object with all properties returned by Slack |
↳ type | string | Message type (usually "message") |
↳ ts | string | Message timestamp (unique identifier) |
↳ text | string | Message text content |
↳ user | string | User ID who sent the message |
↳ bot_id | string | Bot ID if sent by a bot |
↳ username | string | Display username |
↳ channel | string | Channel ID |
↳ team | string | Team/workspace ID |
↳ thread_ts | string | Parent message timestamp (for threaded replies) |
↳ parent_user_id | string | User ID of thread parent message author |
↳ reply_count | number | Total number of replies in thread |
↳ reply_users_count | number | Number of unique users who replied |
↳ latest_reply | string | Timestamp of most recent reply |
↳ subscribed | boolean | Whether user is subscribed to thread |
↳ last_read | string | Timestamp of last read message |
↳ unread_count | number | Number of unread messages in thread |
↳ subtype | string | Message subtype (bot_message, file_share, etc.) |
↳ is_starred | boolean | Whether message is starred by user |
↳ pinned_to | array | Channel IDs where message is pinned |
↳ permalink | string | Permanent URL to the message |
↳ reactions | array | Reactions on this message |
↳ name | string | Emoji name (without colons) |
↳ count | number | Number of times this reaction was added |
↳ users | array | Array of user IDs who reacted |
↳ files | array | Files attached to the message |
↳ id | string | Unique file identifier |
↳ name | string | File name |
↳ mimetype | string | MIME type of the file |
↳ size | number | File size in bytes |
↳ url_private | string | Private download URL (requires auth) |
↳ permalink | string | Permanent link to the file |
↳ mode | string | File mode (hosted, external, etc.) |
↳ attachments | array | Legacy attachments on the message |
↳ id | number | Attachment ID |
↳ fallback | string | Plain text summary |
↳ text | string | Main attachment text |
↳ pretext | string | Text shown before attachment |
↳ color | string | Color bar hex code or preset |
↳ author_name | string | Author display name |
↳ author_link | string | Author link URL |
↳ author_icon | string | Author icon URL |
↳ title | string | Attachment title |
↳ title_link | string | Title link URL |
↳ image_url | string | Image URL |
↳ thumb_url | string | Thumbnail URL |
↳ footer | string | Footer text |
↳ footer_icon | string | Footer icon URL |
↳ ts | string | Timestamp shown in footer |
↳ blocks | array | Block Kit blocks in the message |
↳ type | string | Block type (section, divider, image, actions, etc.) |
↳ block_id | string | Unique block identifier |
↳ edited | object | Edit information if message was edited |
↳ user | string | User ID who edited the message |
↳ ts | string | Timestamp of the edit |
ts | string | Message timestamp |
channel | string | Channel ID where message was sent |
fileCount | number | Number of files uploaded (when files are attached) |
files | file[] | Files attached to the message |
slack_ephemeral_message
Send an ephemeral message visible only to a specific user in a channel. Optionally reply in a thread. The message does not persist across sessions.
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
channel | string | Yes | No description |
user | string | Yes | User ID who will see the ephemeral message (e.g., U1234567890). Must be a member of the channel. |
text | string | Yes | No description |
threadTs | string | No | Thread timestamp to reply in. When provided, the ephemeral message appears as a thread reply. |
blocks | json | No | Block Kit layout blocks as a JSON array. When provided, text becomes the fallback notification text. |
Output
| Parameter | Type | Description |
|---|---|---|
messageTs | string | Timestamp of the ephemeral message (cannot be used with chat.update) |
channel | string | Channel ID where the ephemeral message was sent |
slack_canvas
Create and share Slack canvases in channels. Canvases are collaborative documents within Slack.
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
channel | string | Yes | No description |
title | string | Yes | No description |
content | string | Yes | No description |
document_content | object | No | No description |
Output
| Parameter | Type | Description |
|---|---|---|
canvas_id | string | Unique canvas identifier |
channel | string | Channel where canvas was created |
title | string | Canvas title |
slack_message_reader
Read the latest messages from Slack channels. Retrieve conversation history with filtering options.
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
destinationType | string | No | No description |
botToken | string | No | No description |
channel | string | No | No description |
dmUserId | string | No | No description |
limit | number | No | No description |
oldest | string | No | No description |
latest | string | No | No description |
Output
| Parameter | Type | Description |
|---|---|---|
messages | array | Array of message objects from the channel |
↳ type | string | Message type (usually "message") |
↳ ts | string | Message timestamp (unique identifier) |
↳ text | string | Message text content |
↳ user | string | User ID who sent the message |
↳ bot_id | string | Bot ID if sent by a bot |
↳ username | string | Display username |
↳ channel | string | Channel ID |
↳ team | string | Team/workspace ID |
↳ thread_ts | string | Parent message timestamp (for threaded replies) |
↳ parent_user_id | string | User ID of thread parent message author |
↳ reply_count | number | Total number of replies in thread |
↳ reply_users_count | number | Number of unique users who replied |
↳ latest_reply | string | Timestamp of most recent reply |
↳ subscribed | boolean | Whether user is subscribed to thread |
↳ last_read | string | Timestamp of last read message |
↳ unread_count | number | Number of unread messages in thread |
↳ subtype | string | Message subtype (bot_message, file_share, etc.) |
↳ is_starred | boolean | Whether message is starred by user |
↳ pinned_to | array | Channel IDs where message is pinned |
↳ permalink | string | Permanent URL to the message |
↳ reactions | array | Reactions on this message |
↳ name | string | Emoji name (without colons) |
↳ count | number | Number of times this reaction was added |
↳ users | array | Array of user IDs who reacted |
↳ files | array | Files attached to the message |
↳ id | string | Unique file identifier |
↳ name | string | File name |
↳ mimetype | string | MIME type of the file |
↳ size | number | File size in bytes |
↳ url_private | string | Private download URL (requires auth) |
↳ permalink | string | Permanent link to the file |
↳ mode | string | File mode (hosted, external, etc.) |
↳ attachments | array | Legacy attachments on the message |
↳ id | number | Attachment ID |
↳ fallback | string | Plain text summary |
↳ text | string | Main attachment text |
↳ pretext | string | Text shown before attachment |
↳ color | string | Color bar hex code or preset |
↳ author_name | string | Author display name |
↳ author_link | string | Author link URL |
↳ author_icon | string | Author icon URL |
↳ title | string | Attachment title |
↳ title_link | string | Title link URL |
↳ image_url | string | Image URL |
↳ thumb_url | string | Thumbnail URL |
↳ footer | string | Footer text |
↳ footer_icon | string | Footer icon URL |
↳ ts | string | Timestamp shown in footer |
↳ blocks | array | Block Kit blocks in the message |
↳ type | string | Block type (section, divider, image, actions, etc.) |
↳ block_id | string | Unique block identifier |
↳ edited | object | Edit information if message was edited |
↳ user | string | User ID who edited the message |
↳ ts | string | Timestamp of the edit |
slack_get_message
Retrieve a specific message by its timestamp. Useful for getting a thread parent message.
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
channel | string | Yes | No description |
timestamp | string | Yes | No description |
Output
| Parameter | Type | Description |
|---|---|---|
message | object | The retrieved message object |
↳ type | string | Message type (usually "message") |
↳ ts | string | Message timestamp (unique identifier) |
↳ text | string | Message text content |
↳ user | string | User ID who sent the message |
↳ bot_id | string | Bot ID if sent by a bot |
↳ username | string | Display username |
↳ channel | string | Channel ID |
↳ team | string | Team/workspace ID |
↳ thread_ts | string | Parent message timestamp (for threaded replies) |
↳ parent_user_id | string | User ID of thread parent message author |
↳ reply_count | number | Total number of replies in thread |
↳ reply_users_count | number | Number of unique users who replied |
↳ latest_reply | string | Timestamp of most recent reply |
↳ subscribed | boolean | Whether user is subscribed to thread |
↳ last_read | string | Timestamp of last read message |
↳ unread_count | number | Number of unread messages in thread |
↳ subtype | string | Message subtype (bot_message, file_share, etc.) |
↳ is_starred | boolean | Whether message is starred by user |
↳ pinned_to | array | Channel IDs where message is pinned |
↳ permalink | string | Permanent URL to the message |
↳ reactions | array | Reactions on this message |
↳ name | string | Emoji name (without colons) |
↳ count | number | Number of times this reaction was added |
↳ users | array | Array of user IDs who reacted |
↳ files | array | Files attached to the message |
↳ id | string | Unique file identifier |
↳ name | string | File name |
↳ mimetype | string | MIME type of the file |
↳ size | number | File size in bytes |
↳ url_private | string | Private download URL (requires auth) |
↳ permalink | string | Permanent link to the file |
↳ mode | string | File mode (hosted, external, etc.) |
↳ attachments | array | Legacy attachments on the message |
↳ id | number | Attachment ID |
↳ fallback | string | Plain text summary |
↳ text | string | Main attachment text |
↳ pretext | string | Text shown before attachment |
↳ color | string | Color bar hex code or preset |
↳ author_name | string | Author display name |
↳ author_link | string | Author link URL |
↳ author_icon | string | Author icon URL |
↳ title | string | Attachment title |
↳ title_link | string | Title link URL |
↳ image_url | string | Image URL |
↳ thumb_url | string | Thumbnail URL |
↳ footer | string | Footer text |
↳ footer_icon | string | Footer icon URL |
↳ ts | string | Timestamp shown in footer |
↳ blocks | array | Block Kit blocks in the message |
↳ type | string | Block type (section, divider, image, actions, etc.) |
↳ block_id | string | Unique block identifier |
↳ edited | object | Edit information if message was edited |
↳ user | string | User ID who edited the message |
↳ ts | string | Timestamp of the edit |
slack_get_thread
Retrieve an entire thread including the parent message and all replies. Useful for getting full conversation context.
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
channel | string | Yes | No description |
threadTs | string | Yes | No description |
limit | number | No | No description |
Output
| Parameter | Type | Description |
|---|---|---|
parentMessage | object | The thread parent message |
↳ type | string | Message type (usually "message") |
↳ ts | string | Message timestamp (unique identifier) |
↳ text | string | Message text content |
↳ user | string | User ID who sent the message |
↳ bot_id | string | Bot ID if sent by a bot |
↳ username | string | Display username |
↳ channel | string | Channel ID |
↳ team | string | Team/workspace ID |
↳ thread_ts | string | Parent message timestamp (for threaded replies) |
↳ parent_user_id | string | User ID of thread parent message author |
↳ reply_count | number | Total number of replies in thread |
↳ reply_users_count | number | Number of unique users who replied |
↳ latest_reply | string | Timestamp of most recent reply |
↳ subscribed | boolean | Whether user is subscribed to thread |
↳ last_read | string | Timestamp of last read message |
↳ unread_count | number | Number of unread messages in thread |
↳ subtype | string | Message subtype (bot_message, file_share, etc.) |
↳ is_starred | boolean | Whether message is starred by user |
↳ pinned_to | array | Channel IDs where message is pinned |
↳ permalink | string | Permanent URL to the message |
↳ reactions | array | Reactions on this message |
↳ name | string | Emoji name (without colons) |
↳ count | number | Number of times this reaction was added |
↳ users | array | Array of user IDs who reacted |
↳ files | array | Files attached to the message |
↳ id | string | Unique file identifier |
↳ name | string | File name |
↳ mimetype | string | MIME type of the file |
↳ size | number | File size in bytes |
↳ url_private | string | Private download URL (requires auth) |
↳ permalink | string | Permanent link to the file |
↳ mode | string | File mode (hosted, external, etc.) |
↳ attachments | array | Legacy attachments on the message |
↳ id | number | Attachment ID |
↳ fallback | string | Plain text summary |
↳ text | string | Main attachment text |
↳ pretext | string | Text shown before attachment |
↳ color | string | Color bar hex code or preset |
↳ author_name | string | Author display name |
↳ author_link | string | Author link URL |
↳ author_icon | string | Author icon URL |
↳ title | string | Attachment title |
↳ title_link | string | Title link URL |
↳ image_url | string | Image URL |
↳ thumb_url | string | Thumbnail URL |
↳ footer | string | Footer text |
↳ footer_icon | string | Footer icon URL |
↳ ts | string | Timestamp shown in footer |
↳ blocks | array | Block Kit blocks in the message |
↳ type | string | Block type (section, divider, image, actions, etc.) |
↳ block_id | string | Unique block identifier |
↳ edited | object | Edit information if message was edited |
↳ user | string | User ID who edited the message |
↳ ts | string | Timestamp of the edit |
replies | array | Array of reply messages in the thread (excluding the parent) |
↳ type | string | Message type (usually "message") |
↳ ts | string | Message timestamp (unique identifier) |
↳ text | string | Message text content |
↳ user | string | User ID who sent the message |
↳ bot_id | string | Bot ID if sent by a bot |
↳ username | string | Display username |
↳ channel | string | Channel ID |
↳ team | string | Team/workspace ID |
↳ thread_ts | string | Parent message timestamp (for threaded replies) |
↳ parent_user_id | string | User ID of thread parent message author |
↳ reply_count | number | Total number of replies in thread |
↳ reply_users_count | number | Number of unique users who replied |
↳ latest_reply | string | Timestamp of most recent reply |
↳ subscribed | boolean | Whether user is subscribed to thread |
↳ last_read | string | Timestamp of last read message |
↳ unread_count | number | Number of unread messages in thread |
↳ subtype | string | Message subtype (bot_message, file_share, etc.) |
↳ is_starred | boolean | Whether message is starred by user |
↳ pinned_to | array | Channel IDs where message is pinned |
↳ permalink | string | Permanent URL to the message |
↳ reactions | array | Reactions on this message |
↳ name | string | Emoji name (without colons) |
↳ count | number | Number of times this reaction was added |
↳ users | array | Array of user IDs who reacted |
↳ files | array | Files attached to the message |
↳ id | string | Unique file identifier |
↳ name | string | File name |
↳ mimetype | string | MIME type of the file |
↳ size | number | File size in bytes |
↳ url_private | string | Private download URL (requires auth) |
↳ permalink | string | Permanent link to the file |
↳ mode | string | File mode (hosted, external, etc.) |
↳ attachments | array | Legacy attachments on the message |
↳ id | number | Attachment ID |
↳ fallback | string | Plain text summary |
↳ text | string | Main attachment text |
↳ pretext | string | Text shown before attachment |
↳ color | string | Color bar hex code or preset |
↳ author_name | string | Author display name |
↳ author_link | string | Author link URL |
↳ author_icon | string | Author icon URL |
↳ title | string | Attachment title |
↳ title_link | string | Title link URL |
↳ image_url | string | Image URL |
↳ thumb_url | string | Thumbnail URL |
↳ footer | string | Footer text |
↳ footer_icon | string | Footer icon URL |
↳ ts | string | Timestamp shown in footer |
↳ blocks | array | Block Kit blocks in the message |
↳ type | string | Block type (section, divider, image, actions, etc.) |
↳ block_id | string | Unique block identifier |
↳ edited | object | Edit information if message was edited |
↳ user | string | User ID who edited the message |
↳ ts | string | Timestamp of the edit |
messages | array | All messages in the thread (parent + replies) in chronological order |
↳ type | string | Message type (usually "message") |
↳ ts | string | Message timestamp (unique identifier) |
↳ text | string | Message text content |
↳ user | string | User ID who sent the message |
↳ bot_id | string | Bot ID if sent by a bot |
↳ username | string | Display username |
↳ channel | string | Channel ID |
↳ team | string | Team/workspace ID |
↳ thread_ts | string | Parent message timestamp (for threaded replies) |
↳ parent_user_id | string | User ID of thread parent message author |
↳ reply_count | number | Total number of replies in thread |
↳ reply_users_count | number | Number of unique users who replied |
↳ latest_reply | string | Timestamp of most recent reply |
↳ subscribed | boolean | Whether user is subscribed to thread |
↳ last_read | string | Timestamp of last read message |
↳ unread_count | number | Number of unread messages in thread |
↳ subtype | string | Message subtype (bot_message, file_share, etc.) |
↳ is_starred | boolean | Whether message is starred by user |
↳ pinned_to | array | Channel IDs where message is pinned |
↳ permalink | string | Permanent URL to the message |
↳ reactions | array | Reactions on this message |
↳ name | string | Emoji name (without colons) |
↳ count | number | Number of times this reaction was added |
↳ users | array | Array of user IDs who reacted |
↳ files | array | Files attached to the message |
↳ id | string | Unique file identifier |
↳ name | string | File name |
↳ mimetype | string | MIME type of the file |
↳ size | number | File size in bytes |
↳ url_private | string | Private download URL (requires auth) |
↳ permalink | string | Permanent link to the file |
↳ mode | string | File mode (hosted, external, etc.) |
↳ attachments | array | Legacy attachments on the message |
↳ id | number | Attachment ID |
↳ fallback | string | Plain text summary |
↳ text | string | Main attachment text |
↳ pretext | string | Text shown before attachment |
↳ color | string | Color bar hex code or preset |
↳ author_name | string | Author display name |
↳ author_link | string | Author link URL |
↳ author_icon | string | Author icon URL |
↳ title | string | Attachment title |
↳ title_link | string | Title link URL |
↳ image_url | string | Image URL |
↳ thumb_url | string | Thumbnail URL |
↳ footer | string | Footer text |
↳ footer_icon | string | Footer icon URL |
↳ ts | string | Timestamp shown in footer |
↳ blocks | array | Block Kit blocks in the message |
↳ type | string | Block type (section, divider, image, actions, etc.) |
↳ block_id | string | Unique block identifier |
↳ edited | object | Edit information if message was edited |
↳ user | string | User ID who edited the message |
↳ ts | string | Timestamp of the edit |
replyCount | number | Number of replies returned in this response |
hasMore | boolean | Whether there are more messages in the thread (pagination needed) |
slack_list_channels
List all channels in a Slack workspace. Returns public and private channels the bot has access to.
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
includePrivate | boolean | No | No description |
excludeArchived | boolean | No | No description |
limit | number | No | No description |
Output
| Parameter | Type | Description |
|---|---|---|
channels | array | Array of channel objects from the workspace |
↳ id | string | Channel ID (e.g., C1234567890) |
↳ name | string | Channel name without # prefix |
↳ is_channel | boolean | Whether this is a channel |
↳ is_private | boolean | Whether channel is private |
↳ is_archived | boolean | Whether channel is archived |
↳ is_general | boolean | Whether this is the general channel |
↳ is_member | boolean | Whether the bot/user is a member |
↳ is_shared | boolean | Whether channel is shared across workspaces |
↳ is_ext_shared | boolean | Whether channel is externally shared |
↳ is_org_shared | boolean | Whether channel is org-wide shared |
↳ num_members | number | Number of members in the channel |
↳ topic | string | Channel topic |
↳ purpose | string | Channel purpose/description |
↳ created | number | Unix timestamp when channel was created |
↳ creator | string | User ID of channel creator |
↳ updated | number | Unix timestamp of last update |
ids | array | Array of channel IDs for easy access |
names | array | Array of channel names for easy access |
count | number | Total number of channels returned |
slack_list_members
List all members (user IDs) in a Slack channel. Use with Get User Info to resolve IDs to names.
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
channel | string | Yes | No description |
limit | number | No | No description |
Output
| Parameter | Type | Description |
|---|---|---|
members | array | Array of user IDs who are members of the channel (e.g., U1234567890) |
count | number | Total number of members returned |
slack_list_users
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
includeDeleted | boolean | No | No description |
limit | number | No | No description |
Output
| Parameter | Type | Description |
|---|---|---|
users | array | Array of user objects from the workspace |
↳ id | string | User ID (e.g., U1234567890) |
↳ name | string | Username (handle) |
↳ real_name | string | Full real name |
↳ display_name | string | Display name shown in Slack |
↳ email | string | Email address (requires users:read.email scope) |
↳ is_bot | boolean | Whether the user is a bot |
↳ is_admin | boolean | Whether the user is a workspace admin |
↳ is_owner | boolean | Whether the user is the workspace owner |
↳ deleted | boolean | Whether the user is deactivated |
↳ timezone | string | User timezone identifier |
↳ avatar | string | URL to user avatar image |
↳ status_text | string | Custom status text |
↳ status_emoji | string | Custom status emoji |
ids | array | Array of user IDs for easy access |
names | array | Array of usernames for easy access |
count | number | Total number of users returned |
slack_get_user
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
userId | string | Yes | No description |
Output
| Parameter | Type | Description |
|---|---|---|
user | object | Detailed user information |
↳ id | string | User ID (e.g., U1234567890) |
↳ team_id | string | Workspace/team ID |
↳ name | string | Username (handle) |
↳ real_name | string | Full real name |
↳ display_name | string | Display name shown in Slack |
↳ first_name | string | First name |
↳ last_name | string | Last name |
↳ title | string | Job title |
↳ phone | string | Phone number |
↳ skype | string | Skype handle |
↳ email | string | Email address (requires users:read.email scope) |
↳ is_bot | boolean | Whether the user is a bot |
↳ is_admin | boolean | Whether the user is a workspace admin |
↳ is_owner | boolean | Whether the user is the workspace owner |
↳ is_primary_owner | boolean | Whether the user is the primary owner |
↳ is_restricted | boolean | Whether the user is a guest (restricted) |
↳ is_ultra_restricted | boolean | Whether the user is a single-channel guest |
↳ is_app_user | boolean | Whether user is an app user |
↳ is_stranger | boolean | Whether user is from different workspace |
↳ deleted | boolean | Whether the user is deactivated |
↳ color | string | User color for display |
↳ timezone | string | Timezone identifier (e.g., America/Los_Angeles) |
↳ timezone_label | string | Human-readable timezone label |
↳ timezone_offset | number | Timezone offset in seconds from UTC |
↳ avatar | string | URL to user avatar image |
↳ avatar_24 | string | URL to 24px avatar |
↳ avatar_48 | string | URL to 48px avatar |
↳ avatar_72 | string | URL to 72px avatar |
↳ avatar_192 | string | URL to 192px avatar |
↳ avatar_512 | string | URL to 512px avatar |
↳ status_text | string | Custom status text |
↳ status_emoji | string | Custom status emoji |
↳ status_expiration | number | Unix timestamp when status expires |
↳ updated | number | Unix timestamp of last profile update |
↳ has_2fa | boolean | Whether two-factor auth is enabled |
slack_download
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
fileId | string | Yes | No description |
fileName | string | No | No description |
Output
| Parameter | Type | Description |
|---|---|---|
file | file | Downloaded file stored in execution files |
slack_update_message
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
channel | string | Yes | No description |
timestamp | string | Yes | No description |
text | string | Yes | No description |
blocks | json | No | Block Kit layout blocks as a JSON array. When provided, text becomes the fallback notification text. |
Output
| Parameter | Type | Description |
|---|---|---|
message | object | Complete updated message object with all properties returned by Slack |
↳ type | string | Message type (usually "message") |
↳ ts | string | Message timestamp (unique identifier) |
↳ text | string | Message text content |
↳ user | string | User ID who sent the message |
↳ bot_id | string | Bot ID if sent by a bot |
↳ username | string | Display username |
↳ channel | string | Channel ID |
↳ team | string | Team/workspace ID |
↳ thread_ts | string | Parent message timestamp (for threaded replies) |
↳ parent_user_id | string | User ID of thread parent message author |
↳ reply_count | number | Total number of replies in thread |
↳ reply_users_count | number | Number of unique users who replied |
↳ latest_reply | string | Timestamp of most recent reply |
↳ subscribed | boolean | Whether user is subscribed to thread |
↳ last_read | string | Timestamp of last read message |
↳ unread_count | number | Number of unread messages in thread |
↳ subtype | string | Message subtype (bot_message, file_share, etc.) |
↳ is_starred | boolean | Whether message is starred by user |
↳ pinned_to | array | Channel IDs where message is pinned |
↳ permalink | string | Permanent URL to the message |
↳ reactions | array | Reactions on this message |
↳ name | string | Emoji name (without colons) |
↳ count | number | Number of times this reaction was added |
↳ users | array | Array of user IDs who reacted |
↳ files | array | Files attached to the message |
↳ id | string | Unique file identifier |
↳ name | string | File name |
↳ mimetype | string | MIME type of the file |
↳ size | number | File size in bytes |
↳ url_private | string | Private download URL (requires auth) |
↳ permalink | string | Permanent link to the file |
↳ mode | string | File mode (hosted, external, etc.) |
↳ attachments | array | Legacy attachments on the message |
↳ id | number | Attachment ID |
↳ fallback | string | Plain text summary |
↳ text | string | Main attachment text |
↳ pretext | string | Text shown before attachment |
↳ color | string | Color bar hex code or preset |
↳ author_name | string | Author display name |
↳ author_link | string | Author link URL |
↳ author_icon | string | Author icon URL |
↳ title | string | Attachment title |
↳ title_link | string | Title link URL |
↳ image_url | string | Image URL |
↳ thumb_url | string | Thumbnail URL |
↳ footer | string | Footer text |
↳ footer_icon | string | Footer icon URL |
↳ ts | string | Timestamp shown in footer |
↳ blocks | array | Block Kit blocks in the message |
↳ type | string | Block type (section, divider, image, actions, etc.) |
↳ block_id | string | Unique block identifier |
↳ edited | object | Edit information if message was edited |
↳ user | string | User ID who edited the message |
↳ ts | string | Timestamp of the edit |
content | string | Success message |
metadata | object | Updated message metadata |
↳ channel | string | Channel ID |
↳ timestamp | string | Message timestamp |
↳ text | string | Updated message text |
slack_delete_message
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
channel | string | Yes | No description |
timestamp | string | Yes | No description |
Output
| Parameter | Type | Description |
|---|---|---|
content | string | Success message |
metadata | object | Deleted message metadata |
↳ channel | string | Channel ID |
↳ timestamp | string | Message timestamp |
slack_add_reaction
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
channel | string | Yes | No description |
timestamp | string | Yes | No description |
name | string | Yes | No description |
Output
| Parameter | Type | Description |
|---|---|---|
content | string | Success message |
metadata | object | Reaction metadata |
↳ channel | string | Channel ID |
↳ timestamp | string | Message timestamp |
↳ reaction | string | Emoji reaction name |
slack_remove_reaction
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
channel | string | Yes | No description |
timestamp | string | Yes | No description |
name | string | Yes | Name of the emoji reaction to remove (without colons, e.g., thumbsup, heart, eyes) |
Output
| Parameter | Type | Description |
|---|---|---|
content | string | Success message |
metadata | object | Reaction metadata |
↳ channel | string | Channel ID |
↳ timestamp | string | Message timestamp |
↳ reaction | string | Emoji reaction name |
slack_get_channel_info
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
channel | string | Yes | No description |
includeNumMembers | boolean | No | No description |
Output
| Parameter | Type | Description |
|---|---|---|
channelInfo | object | Detailed channel information |
↳ id | string | Channel ID (e.g., C1234567890) |
↳ name | string | Channel name without # prefix |
↳ is_channel | boolean | Whether this is a channel |
↳ is_private | boolean | Whether channel is private |
↳ is_archived | boolean | Whether channel is archived |
↳ is_general | boolean | Whether this is the general channel |
↳ is_member | boolean | Whether the bot/user is a member |
↳ is_shared | boolean | Whether channel is shared across workspaces |
↳ is_ext_shared | boolean | Whether channel is externally shared |
↳ is_org_shared | boolean | Whether channel is org-wide shared |
↳ num_members | number | Number of members in the channel |
↳ topic | string | Channel topic |
↳ purpose | string | Channel purpose/description |
↳ created | number | Unix timestamp when channel was created |
↳ creator | string | User ID of channel creator |
↳ updated | number | Unix timestamp of last update |
slack_get_user_presence
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
userId | string | Yes | No description |
Output
| Parameter | Type | Description |
|---|---|---|
presence | string | User presence status: "active" or "away" |
online | boolean | Whether user has an active client connection (only available when checking own presence) |
autoAway | boolean | Whether user was automatically set to away due to inactivity (only available when checking own presence) |
manualAway | boolean | Whether user manually set themselves as away (only available when checking own presence) |
connectionCount | number | Total number of active connections for the user (only available when checking own presence) |
lastActivity | number | Unix timestamp of last detected activity (only available when checking own presence) |
slack_edit_canvas
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
canvasId | string | Yes | No description |
operation | string | Yes | Edit operation: insert_at_start, insert_at_end, insert_after, insert_before, replace, delete, or rename |
content | string | No | No description |
sectionId | string | No | Section ID to target (required for insert_after, insert_before, replace, and delete) |
title | string | No | No description |
Output
| Parameter | Type | Description |
|---|---|---|
content | string | Success message |
slack_create_channel_canvas
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
channel | string | Yes | No description |
title | string | No | No description |
content | string | No | No description |
Output
| Parameter | Type | Description |
|---|---|---|
canvas_id | string | ID of the created channel canvas |
slack_create_conversation
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
name | string | Yes | Name of the channel to create (lowercase, numbers, hyphens, underscores only; max 80 characters) |
isPrivate | boolean | No | No description |
teamId | string | No | No description |
Output
| Parameter | Type | Description |
|---|---|---|
channelInfo | object | The newly created channel object |
↳ id | string | Channel ID (e.g., C1234567890) |
↳ name | string | Channel name without # prefix |
↳ is_channel | boolean | Whether this is a channel |
↳ is_private | boolean | Whether channel is private |
↳ is_archived | boolean | Whether channel is archived |
↳ is_general | boolean | Whether this is the general channel |
↳ is_member | boolean | Whether the bot/user is a member |
↳ is_shared | boolean | Whether channel is shared across workspaces |
↳ is_ext_shared | boolean | Whether channel is externally shared |
↳ is_org_shared | boolean | Whether channel is org-wide shared |
↳ num_members | number | Number of members in the channel |
↳ topic | string | Channel topic |
↳ purpose | string | Channel purpose/description |
↳ created | number | Unix timestamp when channel was created |
↳ creator | string | User ID of channel creator |
↳ updated | number | Unix timestamp of last update |
slack_invite_to_conversation
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
channel | string | Yes | No description |
users | string | Yes | No description |
force | boolean | No | When true, continues inviting valid users while skipping invalid ones (default: false) |
Output
| Parameter | Type | Description |
|---|---|---|
channelInfo | object | The channel object after inviting users |
↳ id | string | Channel ID (e.g., C1234567890) |
↳ name | string | Channel name without # prefix |
↳ is_channel | boolean | Whether this is a channel |
↳ is_private | boolean | Whether channel is private |
↳ is_archived | boolean | Whether channel is archived |
↳ is_general | boolean | Whether this is the general channel |
↳ is_member | boolean | Whether the bot/user is a member |
↳ is_shared | boolean | Whether channel is shared across workspaces |
↳ is_ext_shared | boolean | Whether channel is externally shared |
↳ is_org_shared | boolean | Whether channel is org-wide shared |
↳ num_members | number | Number of members in the channel |
↳ topic | string | Channel topic |
↳ purpose | string | Channel purpose/description |
↳ created | number | Unix timestamp when channel was created |
↳ creator | string | User ID of channel creator |
↳ updated | number | Unix timestamp of last update |
errors | array | Per-user errors when force is true and some invitations failed |
↳ user | string | User ID that failed |
↳ ok | boolean | Always false for error entries |
↳ error | string | Error code for this user |
slack_open_view
Open a modal view in Slack using a trigger_id from an interaction payload. Used to display forms, confirmations, and other interactive modals.
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
triggerId | string | Yes | Exchange a trigger to post to the user. Obtained from an interaction payload (e.g., slash command, button click) |
interactivityPointer | string | No | No description |
view | json | Yes | A view payload object defining the modal. Must include type ("modal"), title, and blocks array |
Output
| Parameter | Type | Description |
|---|---|---|
view | object | The opened modal view object |
↳ id | string | Unique view identifier |
↳ team_id | string | Workspace/team ID |
↳ type | string | View type (e.g., "modal") |
↳ title | json | Plain text title object with type and text fields |
↳ type | string | Text object type (plain_text) |
↳ text | string | Title text content |
↳ submit | json | Plain text submit button object |
↳ type | string | Text object type (plain_text) |
↳ text | string | Submit button text |
↳ close | json | Plain text close button object |
↳ type | string | Text object type (plain_text) |
↳ text | string | Close button text |
↳ blocks | array | Block Kit blocks in the view |
↳ type | string | Block type (section, divider, image, actions, etc.) |
↳ block_id | string | Unique block identifier |
↳ private_metadata | string | Private metadata string passed with the view |
↳ callback_id | string | Custom identifier for the view |
↳ external_id | string | Custom external identifier (max 255 chars, unique per workspace) |
↳ state | json | Current state of the view with input values |
↳ hash | string | View version hash for updates |
↳ clear_on_close | boolean | Whether to clear all views in the stack when this view is closed |
↳ notify_on_close | boolean | Whether to send a view_closed event when this view is closed |
↳ root_view_id | string | ID of the root view in the view stack |
↳ previous_view_id | string | ID of the previous view in the view stack |
↳ app_id | string | Application identifier |
↳ bot_id | string | Bot identifier |
slack_update_view
Update an existing modal view in Slack. Identify the view by view_id or external_id, and provide the updated view payload.
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
viewId | string | No | Unique identifier of the view to update. Either viewId or externalId is required |
externalId | string | No | Developer-set unique identifier of the view to update (max 255 chars). Either viewId or externalId is required |
hash | string | No | View state hash to protect against race conditions. Obtained from a previous views response |
view | json | Yes | A view payload object defining the updated modal. Must include type ("modal"), title, and blocks array. Use identical block_id and action_id values to preserve input data |
Output
| Parameter | Type | Description |
|---|---|---|
view | object | The updated modal view object |
↳ id | string | Unique view identifier |
↳ team_id | string | Workspace/team ID |
↳ type | string | View type (e.g., "modal") |
↳ title | json | Plain text title object with type and text fields |
↳ type | string | Text object type (plain_text) |
↳ text | string | Title text content |
↳ submit | json | Plain text submit button object |
↳ type | string | Text object type (plain_text) |
↳ text | string | Submit button text |
↳ close | json | Plain text close button object |
↳ type | string | Text object type (plain_text) |
↳ text | string | Close button text |
↳ blocks | array | Block Kit blocks in the view |
↳ type | string | Block type (section, divider, image, actions, etc.) |
↳ block_id | string | Unique block identifier |
↳ private_metadata | string | Private metadata string passed with the view |
↳ callback_id | string | Custom identifier for the view |
↳ external_id | string | Custom external identifier (max 255 chars, unique per workspace) |
↳ state | json | Current state of the view with input values |
↳ hash | string | View version hash for updates |
↳ clear_on_close | boolean | Whether to clear all views in the stack when this view is closed |
↳ notify_on_close | boolean | Whether to send a view_closed event when this view is closed |
↳ root_view_id | string | ID of the root view in the view stack |
↳ previous_view_id | string | ID of the previous view in the view stack |
↳ app_id | string | Application identifier |
↳ bot_id | string | Bot identifier |
slack_push_view
Push a new view onto an existing modal stack in Slack. Limited to 2 additional views after the initial modal is opened.
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
triggerId | string | Yes | Exchange a trigger to post to the user. Obtained from an interaction payload (e.g., button click within an existing modal) |
interactivityPointer | string | No | No description |
view | json | Yes | A view payload object defining the modal to push. Must include type ("modal"), title, and blocks array |
Output
| Parameter | Type | Description |
|---|---|---|
view | object | The pushed modal view object |
↳ id | string | Unique view identifier |
↳ team_id | string | Workspace/team ID |
↳ type | string | View type (e.g., "modal") |
↳ title | json | Plain text title object with type and text fields |
↳ type | string | Text object type (plain_text) |
↳ text | string | Title text content |
↳ submit | json | Plain text submit button object |
↳ type | string | Text object type (plain_text) |
↳ text | string | Submit button text |
↳ close | json | Plain text close button object |
↳ type | string | Text object type (plain_text) |
↳ text | string | Close button text |
↳ blocks | array | Block Kit blocks in the view |
↳ type | string | Block type (section, divider, image, actions, etc.) |
↳ block_id | string | Unique block identifier |
↳ private_metadata | string | Private metadata string passed with the view |
↳ callback_id | string | Custom identifier for the view |
↳ external_id | string | Custom external identifier (max 255 chars, unique per workspace) |
↳ state | json | Current state of the view with input values |
↳ hash | string | View version hash for updates |
↳ clear_on_close | boolean | Whether to clear all views in the stack when this view is closed |
↳ notify_on_close | boolean | Whether to send a view_closed event when this view is closed |
↳ root_view_id | string | ID of the root view in the view stack |
↳ previous_view_id | string | ID of the previous view in the view stack |
↳ app_id | string | Application identifier |
↳ bot_id | string | Bot identifier |
slack_publish_view
Publish a static view to a user
Input
| Parameter | Type | Required | Description |
|---|---|---|---|
authMethod | string | No | No description |
botToken | string | No | No description |
userId | string | Yes | No description |
hash | string | No | View state hash to protect against race conditions. Obtained from a previous views response |
view | json | Yes | A view payload object defining the Home tab. Must include type ("home") and blocks array |
Output
| Parameter | Type | Description |
|---|---|---|
view | object | The published Home tab view object |
↳ id | string | Unique view identifier |
↳ team_id | string | Workspace/team ID |
↳ type | string | View type (e.g., "modal") |
↳ title | json | Plain text title object with type and text fields |
↳ type | string | Text object type (plain_text) |
↳ text | string | Title text content |
↳ submit | json | Plain text submit button object |
↳ type | string | Text object type (plain_text) |
↳ text | string | Submit button text |
↳ close | json | Plain text close button object |
↳ type | string | Text object type (plain_text) |
↳ text | string | Close button text |
↳ blocks | array | Block Kit blocks in the view |
↳ type | string | Block type (section, divider, image, actions, etc.) |
↳ block_id | string | Unique block identifier |
↳ private_metadata | string | Private metadata string passed with the view |
↳ callback_id | string | Custom identifier for the view |
↳ external_id | string | Custom external identifier (max 255 chars, unique per workspace) |
↳ state | json | Current state of the view with input values |
↳ hash | string | View version hash for updates |
↳ clear_on_close | boolean | Whether to clear all views in the stack when this view is closed |
↳ notify_on_close | boolean | Whether to send a view_closed event when this view is closed |
↳ root_view_id | string | ID of the root view in the view stack |
↳ previous_view_id | string | ID of the previous view in the view stack |
↳ app_id | string | Application identifier |
↳ bot_id | string | Bot identifier |