ActionSlackUpdated September 2026

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

Short answer: You can raw api request in Slack by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the Slack Raw API Request action to a workflow, map its 3 inputs from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.

Raw API Request in Slack — start free All 45 Slack actions

Raw API Request in Slack — start free

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 run history shows the failed step with its input and the error message Slack returned, so you can fix the input and run the workflow again. Automatic retries are built into HTTP steps only, where you can also set your own retry count and delay.

Does Raw API Request support batch operations?

Run Raw API Request inside a loop to process each item in an array. TinyCommand does not throttle calls for you, so for large arrays add a Delay step if you need to stay within Slack's rate limits.

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