Slack nodes
Tools for sending messages and media to Slack. These nodes are also served as MCP tools on the slack MCP server. Back to the full node reference.
Slack Send Media
slack_send_media · natural-language configurable · 3 credits on Cloud
Send a media file to a Slack channel.
Credential: Slack (OAuth)
Parameters
| Field | Type | Required | Description |
|---|---|---|---|
channel | string | ✓ | Slack channel ID where the media will be sent. |
mediaUrls | array<string> | ✓ | List of media URLs to upload to the Slack channel. |
text | string | Optional comment to post alongside the media. |
Output
Returns a list of records — reference fields downstream as $<node>.error.
| Field | Type | Description |
|---|---|---|
error | string | Error message when the media upload failed. |
status | boolean | Whether the media upload completed successfully. |
Slack Send Message
slack_send_message · natural-language configurable · 3 credits on Cloud
Send a text message to a Slack channel.
Credential: Slack (OAuth)
Parameters
| Field | Type | Required | Description |
|---|---|---|---|
channel | string | ✓ | Slack channel ID where the message will be posted. |
text | string | ✓ | Message text to post to the Slack channel. |
Output
Returns a list of records — reference fields downstream as $<node>.messageId.
| Field | Type | Description |
|---|---|---|
messageId | string | Slack message timestamp identifier. |
status | boolean | Whether the Slack message was sent successfully. |