curl --request POST \
  --url https://api.zapier.com/actions/v1/stored-actions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "data": {
    "connection_id": "019320ab-0000-7000-8000-abcdef012345",
    "selected_api": "SplitwiseCLIAPI@1.0.0",
    "action_key": "new_contact",
    "action_type": "read",
    "inputs": {
      "first_name": "John",
      "last_name": "Doe"
    }
  }
}
'

import requests

url = "https://api.zapier.com/actions/v1/stored-actions"

payload = { "data": {
        "connection_id": "019320ab-0000-7000-8000-abcdef012345",
        "selected_api": "SplitwiseCLIAPI@1.0.0",
        "action_key": "new_contact",
        "action_type": "read",
        "inputs": {
            "first_name": "John",
            "last_name": "Doe"
        }
    } }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    data: {
      connection_id: '019320ab-0000-7000-8000-abcdef012345',
      selected_api: 'SplitwiseCLIAPI@1.0.0',
      action_key: 'new_contact',
      action_type: 'read',
      inputs: {first_name: 'John', last_name: 'Doe'}
    }
  })
};

fetch('https://api.zapier.com/actions/v1/stored-actions', 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.zapier.com/actions/v1/stored-actions",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'data' => [
        'connection_id' => '019320ab-0000-7000-8000-abcdef012345',
        'selected_api' => 'SplitwiseCLIAPI@1.0.0',
        'action_key' => 'new_contact',
        'action_type' => 'read',
        'inputs' => [
                'first_name' => 'John',
                'last_name' => 'Doe'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://api.zapier.com/actions/v1/stored-actions"

	payload := strings.NewReader("{\n  \"data\": {\n    \"connection_id\": \"019320ab-0000-7000-8000-abcdef012345\",\n    \"selected_api\": \"SplitwiseCLIAPI@1.0.0\",\n    \"action_key\": \"new_contact\",\n    \"action_type\": \"read\",\n    \"inputs\": {\n      \"first_name\": \"John\",\n      \"last_name\": \"Doe\"\n    }\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.zapier.com/actions/v1/stored-actions")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"data\": {\n    \"connection_id\": \"019320ab-0000-7000-8000-abcdef012345\",\n    \"selected_api\": \"SplitwiseCLIAPI@1.0.0\",\n    \"action_key\": \"new_contact\",\n    \"action_type\": \"read\",\n    \"inputs\": {\n      \"first_name\": \"John\",\n      \"last_name\": \"Doe\"\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.zapier.com/actions/v1/stored-actions")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"data\": {\n    \"connection_id\": \"019320ab-0000-7000-8000-abcdef012345\",\n    \"selected_api\": \"SplitwiseCLIAPI@1.0.0\",\n    \"action_key\": \"new_contact\",\n    \"action_type\": \"read\",\n    \"inputs\": {\n      \"first_name\": \"John\",\n      \"last_name\": \"Doe\"\n    }\n  }\n}"

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

{
  "type": "stored_action",
  "id": "123e4567-e89b-12d3-a456-426614174000"
}

{
  "errors": [
    {
      "status": 400,
      "code": "bad_request",
      "title": "Bad Request",
      "detail": "Improperly formatted or incompleted request",
      "source": null,
      "meta": {}
    }
  ]
}

{
  "errors": [
    {
      "status": 403,
      "code": "permission_denied",
      "detail": "User does not have enough permissions to perform action"
    }
  ]
}

{
  "errors": [
    {
      "status": 429,
      "code": "too_many_requests",
      "detail": "Rate limit exceeded. Too many requests."
    }
  ]
}

{
  "errors": [
    {
      "status": 500,
      "code": "external_service_error",
      "detail": "An error occurred with an external service."
    }
  ]
}

{
  "errors": [
    {
      "status": 503,
      "code": "service_unavaiable",
      "detail": "Service is temporarily unavailable"
    }
  ]
}