Create a snippet

curl --request POST \
  --url https://api.kit.com/v4/snippets \
  --header 'Content-Type: application/json' \
  --header 'X-Kit-Api-Key: <api-key>' \
  --data '
{
  "name": "Cat Fact of the Day",
  "snippet_type": "inline",
  "content": "Did you know, {{ subscriber.first_name }}? Cats can rotate their ears 180 degrees."
}
'

require 'uri'
require 'net/http'

url = URI("https://api.kit.com/v4/snippets")

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

request = Net::HTTP::Post.new(url)
request["X-Kit-Api-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"Cat Fact of the Day\",\n  \"snippet_type\": \"inline\",\n  \"content\": \"Did you know, {{ subscriber.first_name }}? Cats can rotate their ears 180 degrees.\"\n}"

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

const options = {
  method: 'POST',
  headers: {'X-Kit-Api-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'Cat Fact of the Day',
    snippet_type: 'inline',
    content: 'Did you know, {{ subscriber.first_name }}? Cats can rotate their ears 180 degrees.'
  })
};

fetch('https://api.kit.com/v4/snippets', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

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

func main() {

	url := "https://api.kit.com/v4/snippets"

	payload := strings.NewReader("{\n  \"name\": \"Cat Fact of the Day\",\n  \"snippet_type\": \"inline\",\n  \"content\": \"Did you know, {{ subscriber.first_name }}? Cats can rotate their ears 180 degrees.\"\n}")

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

	req.Header.Add("X-Kit-Api-Key", "<api-key>")
	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))

}

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.kit.com/v4/snippets",
  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([
    'name' => 'Cat Fact of the Day',
    'snippet_type' => 'inline',
    'content' => 'Did you know, {{ subscriber.first_name }}? Cats can rotate their ears 180 degrees.'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Kit-Api-Key: <api-key>"
  ],
]);

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

curl_close($curl);

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

import requests

url = "https://api.kit.com/v4/snippets"

payload = {
    "name": "Cat Fact of the Day",
    "snippet_type": "inline",
    "content": "Did you know, {{ subscriber.first_name }}? Cats can rotate their ears 180 degrees."
}
headers = {
    "X-Kit-Api-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "snippet": {
    "id": 31,
    "name": "Cat Fact of the Day",
    "snippet_type": "inline",
    "archived": false,
    "key": "cat-fact-of-the-day",
    "created_at": "2026-07-13T18:11:23Z",
    "updated_at": "2026-07-13T18:11:23Z",
    "content": "Did you know, {{ subscriber.first_name }}? Cats can rotate their ears 180 degrees.",
    "document": {
      "id": 308,
      "value": null,
      "value_html": null,
      "value_plain": null,
      "version": 1
    }
  }
}

{
  "errors": [
    "The access token is invalid"
  ]
}

{
  "errors": [
    "name can't be blank"
  ]
}

Snippets

Create a snippet

Snippets are reusable pieces of email content you can drop into a broadcast or sequence email using Liquid: {{ snippet.key }}. Update the snippet once and every email that references it picks up the new content on next send.

There are two snippet_types. inline snippets store plain-text content (with Liquid variable support like {{ subscriber.first_name }}) in the content field. block snippets store rich-text HTML — text, lists, images, buttons — in document_attributes.value_html. A snippet’s type is fixed at creation: it cannot be changed via Update a snippet.

The response includes a key field. That’s the identifier you use in Liquid — for example, a snippet returned with "key": "welcome-message" is referenced inside a broadcast as {{ snippet.welcome-message }}. Keys are derived from the snippet name on creation.

Note: the API rejects circular references — a snippet cannot reference itself, directly or transitively — with a 422 validation error.

For end-user context on how creators build and edit snippets in the Kit UI, see the help articles on content snippets and code snippets for custom templates.

POST

snippets

Create a snippet

curl --request POST \
  --url https://api.kit.com/v4/snippets \
  --header 'Content-Type: application/json' \
  --header 'X-Kit-Api-Key: <api-key>' \
  --data '
{
  "name": "Cat Fact of the Day",
  "snippet_type": "inline",
  "content": "Did you know, {{ subscriber.first_name }}? Cats can rotate their ears 180 degrees."
}
'

require 'uri'
require 'net/http'

url = URI("https://api.kit.com/v4/snippets")

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

request = Net::HTTP::Post.new(url)
request["X-Kit-Api-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"Cat Fact of the Day\",\n  \"snippet_type\": \"inline\",\n  \"content\": \"Did you know, {{ subscriber.first_name }}? Cats can rotate their ears 180 degrees.\"\n}"

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

const options = {
  method: 'POST',
  headers: {'X-Kit-Api-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'Cat Fact of the Day',
    snippet_type: 'inline',
    content: 'Did you know, {{ subscriber.first_name }}? Cats can rotate their ears 180 degrees.'
  })
};

fetch('https://api.kit.com/v4/snippets', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

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

func main() {

	url := "https://api.kit.com/v4/snippets"

	payload := strings.NewReader("{\n  \"name\": \"Cat Fact of the Day\",\n  \"snippet_type\": \"inline\",\n  \"content\": \"Did you know, {{ subscriber.first_name }}? Cats can rotate their ears 180 degrees.\"\n}")

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

	req.Header.Add("X-Kit-Api-Key", "<api-key>")
	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))

}

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.kit.com/v4/snippets",
  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([
    'name' => 'Cat Fact of the Day',
    'snippet_type' => 'inline',
    'content' => 'Did you know, {{ subscriber.first_name }}? Cats can rotate their ears 180 degrees.'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Kit-Api-Key: <api-key>"
  ],
]);

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

curl_close($curl);

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

import requests

url = "https://api.kit.com/v4/snippets"

payload = {
    "name": "Cat Fact of the Day",
    "snippet_type": "inline",
    "content": "Did you know, {{ subscriber.first_name }}? Cats can rotate their ears 180 degrees."
}
headers = {
    "X-Kit-Api-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

{
  "snippet": {
    "id": 31,
    "name": "Cat Fact of the Day",
    "snippet_type": "inline",
    "archived": false,
    "key": "cat-fact-of-the-day",
    "created_at": "2026-07-13T18:11:23Z",
    "updated_at": "2026-07-13T18:11:23Z",
    "content": "Did you know, {{ subscriber.first_name }}? Cats can rotate their ears 180 degrees.",
    "document": {
      "id": 308,
      "value": null,
      "value_html": null,
      "value_plain": null,
      "version": 1
    }
  }
}

{
  "errors": [
    "The access token is invalid"
  ]
}

{
  "errors": [
    "name can't be blank"
  ]
}

Authorizations

X-Kit-Api-Key

string

header

required

Authenticate API requests via an API Key

Body

application/json

Inline snippet
Block snippet

name

string

required

Name of the snippet

snippet_type

enum<string>

required

Must be 'inline'

Available options:

inline

content

string

required

Liquid-enabled text content for the snippet

Response

Creates a new snippet

snippet

object

required

Show child attributes

List snippets Get a snippet

⌘I

Getting started

Guides

Endpoints

Create a snippet

Authorizations

Body

Response