Get a template

GET/api/v2/templates/:id

One saved template.

Needs an API key with the newsletter scope. Scopes

Parameters

Path

idstringrequired

The template id from GET /api/v2/templates.

Notes

Needs read.

curl -X GET "https://api.koltrix.com/api/v2/templates/5b7e9d10-3a42-4c6f-8d1e-2f4a6c8e0b13" \
  -H "Authorization: Bearer $KOLTRIX_API_KEY"

const res = await fetch("https://api.koltrix.com/api/v2/templates/5b7e9d10-3a42-4c6f-8d1e-2f4a6c8e0b13", {
  method: "GET",
  headers: {
    Authorization: `Bearer ${process.env.KOLTRIX_API_KEY}`,
  },
});

console.log(res.status, await res.json());

import os, requests

res = requests.get(
    "https://api.koltrix.com/api/v2/templates/5b7e9d10-3a42-4c6f-8d1e-2f4a6c8e0b13",
    headers={
        "Authorization": f"Bearer {os.environ['KOLTRIX_API_KEY']}",
    },
)
print(res.status_code, res.json())

package main

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

func main() {
	req, _ := http.NewRequest("GET", "https://api.koltrix.com/api/v2/templates/5b7e9d10-3a42-4c6f-8d1e-2f4a6c8e0b13", nil)
	req.Header.Set("Authorization", "Bearer "+os.Getenv("KOLTRIX_API_KEY"))

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()
	out, _ := io.ReadAll(res.Body)
	fmt.Println(res.StatusCode, string(out))
}

<?php

$ch = curl_init("https://api.koltrix.com/api/v2/templates/5b7e9d10-3a42-4c6f-8d1e-2f4a6c8e0b13");
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST => "GET",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        "Authorization: Bearer " . getenv("KOLTRIX_API_KEY"),
    ],
]);

$response = curl_exec($ch);
echo curl_getinfo($ch, CURLINFO_HTTP_CODE), " ", $response;

Success.

{
  "id": "5b7e9d10-3a42-4c6f-8d1e-2f4a6c8e0b13",
  "name": "Pricing question",
  "category": "sales",
  "subject": "Re: pricing",
  "body_html": "<p>Thanks for asking about pricing.</p>",
  "body_text": "Thanks for asking about pricing.",
  "is_default": false,
  "created_at": "2026-09-12T09:14:22Z",
  "updated_at": "2026-10-01T08:00:00Z"
}

The API key is missing, malformed, unknown or revoked.

{
  "error": "invalid or revoked api key"
}

The key is valid but does not have the newsletter scope.

{
  "error": "missing permission: newsletter"
}

More than 60 requests a minute on this key. Wait Retry-After seconds. No code field.

Retry-After: 60

{
  "error": "rate limit exceeded — 60 requests per minute per API key"
}

Try it below with your own key. Every sample reads the key from KOLTRIX_API_KEY.

Try it

Send this request from your browser.

Input

What you send

API key

Stays in this browser tab (sessionStorage) and goes only to api.koltrix.com. Create one under Settings → API keys.

Requests are real. Koltrix has no test mode, so use a dedicated key with only the permissions you need and revoke it when you are done.

idstringrequired

GEThttps://api.koltrix.com/api/v2/templates/5b7e9d10-3a42-4c6f-8d1e-2f4a6c8e0b13

Output

What comes back

The response appears here.
Press Send request.