curl --request GET \
  --url https://api.hubapi.com/automation/actions/2026-03/{appId}/{definitionId}/revisions/{revisionId} \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.hubapi.com/automation/actions/2026-03/{appId}/{definitionId}/revisions/{revisionId}"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.hubapi.com/automation/actions/2026-03/{appId}/{definitionId}/revisions/{revisionId}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.hubapi.com/automation/actions/2026-03/{appId}/{definitionId}/revisions/{revisionId}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.hubapi.com/automation/actions/2026-03/{appId}/{definitionId}/revisions/{revisionId}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.hubapi.com/automation/actions/2026-03/{appId}/{definitionId}/revisions/{revisionId}")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.hubapi.com/automation/actions/2026-03/{appId}/{definitionId}/revisions/{revisionId}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "createdAt": "2023-11-07T05:31:56Z",
  "definition": {
    "actionUrl": "<string>",
    "functions": [
      {
        "functionType": "POST_ACTION_EXECUTION",
        "id": "<string>"
      }
    ],
    "id": "<string>",
    "inputFields": [
      {
        "isRequired": true,
        "typeDefinition": {
          "name": "<string>",
          "options": [
            {
              "label": "<string>",
              "value": "<string>",
              "description": "<string>",
              "displayOrder": 123
            }
          ],
          "type": "bool",
          "description": "<string>",
          "fieldType": "booleancheckbox",
          "helpText": "<string>",
          "label": "<string>",
          "optionsUrl": "<string>",
          "referencedObjectType": "OWNER"
        },
        "supportedValueTypes": [
          "STATIC_VALUE"
        ]
      }
    ],
    "labels": {},
    "objectTypes": [
      "<string>"
    ],
    "published": true,
    "revisionId": "<string>",
    "archivedAt": 123,
    "executionRules": [
      {
        "conditions": {},
        "labelName": "<string>"
      }
    ],
    "inputFieldDependencies": [
      {
        "controllingFieldName": "<string>",
        "dependencyType": "SINGLE_FIELD",
        "dependentFieldNames": [
          "<string>"
        ]
      }
    ],
    "objectRequestOptions": {
      "properties": [
        "<string>"
      ]
    },
    "outputFields": [
      {
        "typeDefinition": {
          "externalOptions": true,
          "name": "<string>",
          "options": [
            {
              "description": "<string>",
              "displayOrder": 123,
              "doubleData": 123,
              "hidden": true,
              "label": "<string>",
              "readOnly": true,
              "value": "<string>"
            }
          ],
          "schema": {
            "type": "INTEGER",
            "maximum": 123,
            "minimum": 123
          },
          "type": "bool",
          "useChirp": true,
          "description": "<string>",
          "externalOptionsReferenceType": "<string>",
          "fieldType": "booleancheckbox",
          "helpText": "<string>",
          "label": "<string>",
          "optionsUrl": "<string>",
          "referencedObjectType": "ABANDONED_CART"
        }
      }
    ]
  },
  "id": "<string>",
  "revisionId": "<string>"
}

{
  "message": "Invalid input (details will vary based on the error)",
  "correlationId": "aeb5f871-7f07-4993-9211-075dc63e7cbf",
  "category": "VALIDATION_ERROR",
  "links": {
    "knowledge-base": "https://www.hubspot.com/products/service/knowledge-base"
  }
}