ActionSlackUpdated May 2026

How do I call any Slack Web API method not covered yet?

Short answer: Drop the "Slack → Raw API Request" action anywhere in your workflow, map the inputs from upstream nodes, and publish.

Use this action All 45 Slack actions

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
HTTP Method method	options	Optional	HTTP Method. Options: POST, GET
Endpoint endpoint	string	Required	Slack API method name (without the https://slack.com/api/ prefix).
JSON Body body	json	Optional	JSON request body (for POST). Pass {} for GET.

Sample request

{
  "method": "{{trigger.method}}",
  "endpoint": "chat.postMessage",
  "body": "e.g. Hi there, thanks for reaching out."
}

Returns

{
  "ok": true,
  "raw": {}
}

Use these fields in downstream nodes for routing, logging, or error handling.

Triggered by

Apps that pair well as the trigger for Raw API Request.

Any of these apps can fire this action as part of a workflow.

Gmail → Slack

1 Gmail triggers

Google Sheets → Slack

2 Google Sheets triggers

FAQ

Questions about Raw API Request.

What does the Raw API Request action do in Slack?

Makes a raw authenticated call to any Slack Web API method. The escape hatch for endpoints not yet covered by a dedicated action.

What inputs does Raw API Request require?

Required: Endpoint. Every input accepts a static value or a variable from any upstream node in your workflow.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if Slack returns an error?

The workflow pauses on the failed node, the error message is captured in the run log, and you can retry the run with one click. Auto-retry policies are configurable per workflow with exponential backoff up to 5 attempts.

Does Raw API Request support batch operations?

Yes. Run Raw API Request inside a Loop node to process arrays. Tiny Command handles Slack's rate limits automatically so you don't have to throttle manually.

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